Recent Advances in Physicochemical and Biological Techniques for the Management of Discharges Loaded with Surfactants

The spectacular evolution of the urban and industrial sector today poses real environmental challenges of water pollution that requires immediate attention. Surfactants are emerging contaminants that pose a significant problem in wastewater treatment, and their presence causes difficulty in traditional treatment processes. In this context, the present work critically reviews the impacts of surfactants and their toxicity on the environment and human health while presenting the various techniques used in wastewater treatment plants to reduce their effects. Surfactants are removed from wastewater using different techniques, including physical, chemical, biological, and membrane treatment. The choice of the most appropriate technique for wastewater treatment is based on many criteria, such as effluent quality, standards to be respected, investment and operating costs, and environmental footprint. Adsorption and coagulation-flocculation are the most suitable techniques for removing detergents from wastewater due to their effectiveness, ease of use, environmental friendliness, and cost-effectiveness. This work is licensed under a Creative Commons Attribution 4.0 International License

Gender differences in the evolution of haute cuisine chef's career

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Culinary Science & Technology on 2020, available online: http://www.tandfonline.com/10.1080/15428052.2019.1640156[EN] This article reviews gender differences in the career paths of successful chefs, including barriers, success factors, and the entrepreneurial path. The research was developed in 2016-17, using an international survey carried out in Spain, France, and the United States among culinary students, cooks, and chefs who responded to a structured questionnaire based on pre-selected topics. The results show that a chef's career requires various sets of skills. They should be leaders, mentors, and entrepreneurs. They work in a hard and competitive environment where building their brand and achieving public recognition is a must. Their professional satisfaction depends on learning, evolving, and launching their restaurant. There were two main differences between the sample of women chefs and the general sample of chefs: they required more mentoring, and they achieved greater job satisfaction when they were self-employed.Albors Garrigós, J.; Haddaji, M.; García-Segovia, P.; Peiró Signes, A. (2020). Gender differences in the evolution of haute cuisine chef's career. Journal of Culinary Science & Technology (Online). 18(6):439-468. https://doi.org/10.1080/15428052.2019.1640156S439468186Emiroğlu, B. D., Akova, O., & Tanrıverdi, H. (2015). The Relationship Between Turnover Intention and Demographic Factors in Hotel Businesses: A Study at Five Star Hotels in Istanbul. Procedia - Social and Behavioral Sciences, 207, 385-397. doi:10.1016/j.sbspro.2015.10.108Ainuddin, R. A., Beamish, P. W., Hulland, J. S., & Rouse, M. J. (2007). Resource attributes and firm performance in international joint ventures. Journal of World Business, 42(1), 47-60. doi:10.1016/j.jwb.2006.11.001Allen, H., & Mac Con Iomaire, M. (2016). «Against all odds»: Head chefs profiled. Journal of Culinary Science & Technology, 14(2), 107-135. doi:10.1080/15428052.2015.1080645Allen, H., & Mac Con Iomaire, M. (2016). Secrets of a Head Chef: Exploring Factors Influencing Success in Irish Kitchens. Journal of Culinary Science & Technology, 15(3), 187-222. doi:10.1080/15428052.2016.1225538Anderson, E. R. (2008). ‘Whose name’s on the awning?’ Gender, entrepreneurship and the American diner. Gender, Place & Culture, 15(4), 395-410. doi:10.1080/09663690802155611Balazs, K. (2001). Some like it haute: Organizational Dynamics, 30(2), 134-148. doi:10.1016/s0090-2616(01)00048-1Balazs, K. (2002). Take One Entrepreneur: European Management Journal, 20(3), 247-259. doi:10.1016/s0263-2373(02)00040-3Blanck, J. F. (2007). Research Chefs Association . Journal of Agricultural & Food Information, 8(1), 3-8. doi:10.1300/j108v08n01_02Boone, J., Veller, T., Nikolaeva, K., Keith, M., Kefgen, K., & Houran, J. (2013). Rethinking a Glass Ceiling in the Hospitality Industry. Cornell Hospitality Quarterly, 54(3), 230-239. doi:10.1177/1938965513492624Burgess, C. (2003). Gender and salaries in hotel financial management: it’s still a man’s world. Women in Management Review, 18(1/2), 50-59. doi:10.1108/09649420310462325Cairns, K., Johnston, J., & Baumann, S. (2010). Caring About Food. Gender & Society, 24(5), 591-615. doi:10.1177/0891243210383419Food and Femininity. (2015). doi:10.5040/9781474255158Carvalho, I., Costa, C., Lykke, N. & Torres, A. (2018). Agency, structures and women managers' views of their careers in tourism. In Women's Studies International Forum (Vol. 71, pp. 1-11). Pergamon. London.Casado-Díaz, J. M., & Simón, H. (2016). Wage differences in the hospitality sector. Tourism Management, 52, 96-109. doi:10.1016/j.tourman.2015.06.015Childers, L. & Kryza, A. (2015). The 17 best female chefs in America. Thrillist. Retrieved from https://www.thrillist.com/eat/nation/america-s-best-female-chefsChin, W. W. (2009). How to Write Up and Report PLS Analyses. Handbook of Partial Least Squares, 655-690. doi:10.1007/978-3-540-32827-8_29Cooper, J., Giousmpasoglou, C., & Marinakou, E. (2017). Occupational identity and culture: the case of Michelin-starred chefs. International Journal of Contemporary Hospitality Management, 29(5), 1362-1379. doi:10.1108/ijchm-02-2016-0071Costa, C., Bakas, F. E., Breda, Z., & Durão, M. (2017). ‘Emotional’ female managers: How gendered roles influence tourism management discourse. Journal of Hospitality and Tourism Management, 33, 149-156. doi:10.1016/j.jhtm.2017.09.011Day, E. (2015, June 7). Hélène Darroze: Life according to the world’s best female chef. The Guardian. Retrieved from http://www.theguardian.com/lifeandstyle/2015/jun/07/helene-darroze-female-chefsdruckman, charlotte. (2010). Why Are There No Great Women Chefs? Gastronomica, 10(1), 24-31. doi:10.1525/gfc.2010.10.1.24Maiti, C. K., Sen, S., Paul, A. K., & Acharya, K. (2007). First Report of Alternaria dianthicola Causing Leaf Blight on Withania somnifera from India. Plant Disease, 91(4), 467-467. doi:10.1094/pdis-91-4-0467bFerreira Freire Guimarães, C. R., & Silva, J. R. (2016). Pay gap by gender in the tourism industry of Brazil. Tourism Management, 52, 440-450. doi:10.1016/j.tourman.2015.07.003Fornell, C., & Larcker, D. F. (1981). Structural Equation Models with Unobservable Variables and Measurement Error: Algebra and Statistics. Journal of Marketing Research, 18(3), 382-388. doi:10.1177/002224378101800313George, R. T., & Hancer, M. (2005). Leader-Member Exchange Quality. Journal of Human Resources in Hospitality & Tourism, 3(2), 85-99. doi:10.1300/j171v03n02_04Gergaud, O., Smeets, V. & Warzynski, F. (2011). Learning by cooking and reputation building: A French recipe to become a top chef. American Association of Wine Economists. Working paper no.81. Retrieved from http://www.wine-economics.orgGlauber, R. (2011). Limited Access: Gender, Occupational Composition, and Flexible Work Scheduling. The Sociological Quarterly, 52(3), 472-494. doi:10.1111/j.1533-8525.2011.01215.xGuerrina, R. (2002). Mothering in Europe. European Journal of Women’s Studies, 9(1), 49-68. doi:10.1177/1350506802009001381Guyette, W. C. (1981). The Executive Chef: Manager or Culinarian? Cornell Hotel and Restaurant Administration Quarterly, 22(3), 71-78. doi:10.1177/001088048102200320Haddaji, M., Albors-Garrigós, J., & García-Segovia, P. (2017). Women chefs’ experience: Kitchen barriers and success factors. International Journal of Gastronomy and Food Science, 9, 49-54. doi:10.1016/j.ijgfs.2017.06.004Haddaji, M., Albors-Garrigós, J., & García-Segovia, P. (2017). Women Chefs’ Access Barriers to Michelin Stars: A Case-Study Based Approach. Journal of Culinary Science & Technology, 15(4), 320-338. doi:10.1080/15428052.2017.1289133Hair, J. F., Ringle, C. M., & Sarstedt, M. (2011). PLS-SEM: Indeed a Silver Bullet. Journal of Marketing Theory and Practice, 19(2), 139-152. doi:10.2753/mtp1069-6679190202Harringon, R., & Herzog, C. (2007). Chef John Folse: A Case Study of Vision, Leadership & Sustainability. Journal of Hospitality & Tourism Education, 19(3), 5-10. doi:10.1080/10963758.2007.10696892Harris, D. A., & Giuffre, P. (2010). «The Price You Pay»: How Female Professional Chefs Negotiate Work and Family. Gender Issues, 27(1-2), 27-52. doi:10.1007/s12147-010-9086-8Harris, D. A., & Giuffre, P. (2015). Taking the Heat. doi:10.36019/9780813571270Heilman, M. E., & Haynes, M. C. (2005). No Credit Where Credit Is Due: Attributional Rationalization of Women’s Success in Male-Female Teams. Journal of Applied Psychology, 90(5), 905-916. doi:10.1037/0021-9010.90.5.905Hoyt, C. L. & Simon, S. (2011). Female leaders: Injurious or inspiring role models for women? Jepson School of Leadership Studies articles, book chapters, and other publications. 114. Retrieved from http://scholarship.richmond.edu/jepson-faculty-publications/114Hurley, A. E. (1999). Incorporating feminist theories into sociological theories of entrepreneurship. Women in Management Review, 14(2), 54-62. doi:10.1108/09649429910261396Kiser, A. I. T. (2015). Workplace and leadership perceptions between men and women. Gender in Management: An International Journal, 30(8), 598-612. doi:10.1108/gm-11-2014-0097Knutson, B. J., & Schmidgall, R. S. (1999). Dimensions of the Glass Ceiling in the Hospitality Industry. Cornell Hotel and Restaurant Administration Quarterly, 40(6), 64-75. doi:10.1177/001088049904000618Ko, W.-H. (2012). The relationships among professional competence, job satisfaction and career development confidence for chefs in Taiwan. International Journal of Hospitality Management, 31(3), 1004-1011. doi:10.1016/j.ijhm.2011.12.004Lane, C. (2013). Taste makers in the «fine-dining» restaurant industry: The attribution of aesthetic and economic value by gastronomic guides. Poetics, 41(4), 342-365. doi:10.1016/j.poetic.2013.05.003Lee, K.-E. (2011). Moderating effects of leader-member exchange (LMX) on job burnout in dietitians and chefs of institutional foodservice. Nutrition Research and Practice, 5(1), 80. doi:10.4162/nrp.2011.5.1.80Lee, K., Yang, G., & Graham, J. L. (2006). Tension and trust in international business negotiations: American executives negotiating with Chinese executives. Journal of International Business Studies, 37(5), 623-641. doi:10.1057/palgrave.jibs.8400215Lloyd-Fore, N. (1988). Where Next for Women? Cornell Hotel and Restaurant Administration Quarterly, 29(3), 9-10. doi:10.1177/001088048802900306Mac Con Iomaire, M. (2008). Understanding the Heat—Mentoring: A Model for Nurturing Culinary Talent. Journal of Culinary Science & Technology, 6(1), 43-62. doi:10.1080/15428050701884196Martin, P., & Barnard, A. (2013). The experience of women in male-dominated occupations: A constructivist grounded theory inquiry. SA Journal of Industrial Psychology, 39(2). doi:10.4102/sajip.v39i2.1099Meah, A., & Jackson, P. (2013). Crowded kitchens: the ‘democratisation’ of domesticity? Gender, Place & Culture, 20(5), 578-596. doi:10.1080/0966369x.2012.701202Michelin. (2018). Retrieved from https://guide.michelin.comMintz, S. W. (1989). Cuisine and haute cuisine: How are they linked? Food and Foodways, 3(3), 185-190. doi:10.1080/07409710.1989.9961947Müller, K. F., VanLeeuwen, D., Mandabach, K., & Harrington, R. J. (2009). The effectiveness of culinary curricula: a case study. International Journal of Contemporary Hospitality Management, 21(2), 167-178. doi:10.1108/09596110910935660Nebel, E. C., Braunlich, C. G., & Zhang, Y. (1994). Career Paths in American Luxury Hotels: Hotel Food and Beverage Directors. International Journal of Contemporary Hospitality Management, 6(6), 3-9. doi:10.1108/09596119410070495Orser, B., & Leck, J. (2010). Gender influences on career success outcomes. Gender in Management: An International Journal, 25(5), 386-407. doi:10.1108/17542411011056877Pratten, J. D. (2003). What makes a great chef? British Food Journal, 105(7), 454-459. doi:10.1108/00070700310497255Pratten, J. D. (2003). The training and retention of chefs. International Journal of Contemporary Hospitality Management, 15(4), 237-242. doi:10.1108/09596110310475702Purcell, K. (1996). The relationship between career and job opportunities: women’s employment in the hospitality industry as a microcosm of women’s employment. Women in Management Review, 11(5), 17-24. doi:10.1108/09649429610122618Remington, J., & Kitterlin-Lynch, M. (2017). Still pounding on the glass ceiling: A study of female leaders in hospitality, travel, and tourism management. Journal of Human Resources in Hospitality & Tourism, 17(1), 22-37. doi:10.1080/15332845.2017.1328259Sanders, M. D. (2015). The world´s most elite female chefs reveal what it’s really like to have their Michelin stars. Retrieved from https://www.marieclaire.com/food-cocktails/g3262/women-chefs-three-michelin-stars/Santero-Sanchez, R., Segovia-Pérez, M., Castro-Nuñez, B., Figueroa-Domecq, C., & Talón-Ballestero, P. (2015). Gender differences in the hospitality industry: A Job quality index. Tourism Management, 51, 234-246. doi:10.1016/j.tourman.2015.05.025Sarstedt, M., Henseler, J., & Ringle, C. M. (2011). Multigroup Analysis in Partial Least Squares (PLS) Path Modeling: Alternative Methods and Empirical Results. Measurement and Research Methods in International Marketing, 195-218. doi:10.1108/s1474-7979(2011)0000022012Supski, S. (2006). ‘It Was Another Skin’: The kitchen as home for Australian post-war immigrant women. Gender, Place & Culture, 13(2), 133-141. doi:10.1080/09663690600573635Telerama. (2018). Gastronomie, Où sont les femmes? La carte des 500 cheffes à découvrir dans toute la France. Retrieved from https://www.telerama.fr/monde/gastronomie-la-carte-des-370-cheffes-a-decouvrir-dans-toute-la-france,n5514484.phpTims, M., Bakker, A. B., & Xanthopoulou, D. (2011). Do transformational leaders enhance their followers’ daily work engagement? The Leadership Quarterly, 22(1), 121-131. doi:10.1016/j.leaqua.2010.12.011USA Today. (2018, July 5). 50 states: 50 female chefs. Retrieved from https://www.usatoday.com/story/travel/experience/food-and-wine/2018/03/05/americas-female-chefs/385015002/onWilliams, C. L., & Dellinger, K. (Eds.). (2010). Gender and Sexuality in the Workplace. Research in the Sociology of Work. doi:10.1108/s0277-2833(2010)20WTO, World Tourism Association (2018), UNWTO Tourism Highlights: 2018 Edition, Madrid, Spain.Yen, C.-L. (Alan), Cooper, C. A., & Murrmann, S. K. (2013). Exploring Culinary Graduates’ Career Decisions and Expectations. Journal of Human Resources in Hospitality & Tourism, 12(2), 109-125. doi:10.1080/15332845.2013.752707Zhong, Y., & Couch, S. (2007). Hospitality Students’ Perceptions of Facilitators and Constraints Affecting Women’s Career Advancement in the Hospitality Industry. Family and Consumer Sciences Research Journal, 35(4), 357-373. doi:10.1177/1077727x07299993Zopiatis, A. (2010). Is it art or science? Chef’s competencies for success. International Journal of Hospitality Management, 29(3), 459-467. doi:10.1016/j.ijhm.2009.12.003Zopiatis, A., Theocharous, A. L., & Constanti, P. (2017). Career satisfaction and future intentions in the hospitality industry: An intrinsic or an extrinsic proposition? Journal of Human Resources in Hospitality & Tourism, 17(1), 98-120. doi:10.1080/15332845.2017.134074

Fusarium: more than a node or a foot-shaped basal cell

Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae. Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium. Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae. Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae (e.g., Cosmosporella, Macroconia, Microcera). In this study four new genera are introduced, along with 18 new species and 16 new combinations. These names convey information about relationships, morphology, and ecological preference that would otherwise be lost in a broader definition of Fusarium. To assist users to correctly identify fusarioid genera and species, we introduce a new online identification database, Fusarioid-ID, accessible at www.fusarium.org. The database comprises partial sequences from multiple genes commonly used to identify fusarioid taxa (act1, CaM, his3, rpb1, rpb2, tef1, tub2, ITS, and LSU). In this paper, we also present a nomenclator of names that have been introduced in Fusarium up to January 2021 as well as their current status, types, and diagnostic DNA barcode data. In this study, researchers from 46 countries, representing taxonomists, plant pathologists, medical mycologists, quarantine officials, regulatory agencies, and students, strongly support the application and use of a more precisely delimited Fusarium (= Gibberella) concept to accommodate taxa from the robust monophyletic node F3 on the basis of a well-defined and unique combination of morphological and biochemical features. This F3 node includes, among others, species of the F. fujikuroi, F. incarnatum-equiseti, F. oxysporum, and F. sambucinum species complexes, but not species of Bisifusarium [F. dimerum species complex (SC)], Cyanonectria (F. buxicola SC), Geejayessia (F. staphyleae SC), Neocosmospora (F. solani SC) or Rectifusarium (F. ventricosum SC). The present study represents the first step to generating a new online monograph of Fusarium and allied fusarioid genera (www.fusarium.org)

Fusarium : more than a node or a foot-shaped basal cell

Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae. Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium. Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae. Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae (e.g., Cosmosporella, Macroconia, Microcera). In this study four new genera are introduced, along with 18 new species and 16 new combinations. These names convey information about relationships, morphology, and ecological preference that would otherwise be lost in a broader definition of Fusarium. To assist users to correctly identify fusarioid genera and species, we introduce a new online identification database, Fusarioid-ID, accessible at www.fusarium.org. The database comprises partial sequences from multiple genes commonly used to identify fusarioid taxa (act1, CaM, his3, rpb1, rpb2, tef1, tub2, ITS, and LSU). In this paper, we also present a nomenclator of names that have been introduced in Fusarium up to January 2021 as well as their current status, types, and diagnostic DNA barcode data. In this study, researchers from 46 countries, representing taxonomists, plant pathologists, medical mycologists, quarantine officials, regulatory agencies, and students, strongly support the application and use of a more precisely delimited Fusarium (= Gibberella) concept to accommodate taxa from the robust monophyletic node F3 on the basis of a well-defined and unique combination of morphological and biochemical features. This F3 node includes, among others, species of the F. fujikuroi, F. incarnatum-equiseti, F. oxysporum, and F. sambucinum species complexes, but not species of Bisifusarium [F. dimerum species complex (SC)], Cyanonectria (F. buxicola SC), Geejayessia (F. staphyleae SC), Neocosmospora (F. solani SC) or Rectifusarium (F. ventricosum SC). The present study represents the first step to generating a new online monograph of Fusarium and allied fusarioid genera (www.fusarium.org).http://www.studiesinmycology.org/BiochemistryForestry and Agricultural Biotechnology Institute (FABI)GeneticsMicrobiology and Plant PathologyPlant Production and Soil Scienc

Fusarium: more than a node or a foot-shaped basal cell

Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae. Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium. Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae. Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae (e.g., Cosmosporella, Macroconia, Microcera). In this study four new genera are introduced, along with 18 new species and 16 new combinations. These names convey information about relationships, morphology, and ecological preference that would otherwise be lost in a broader definition of Fusarium. To assist users to correctly identify fusarioid genera and species, we introduce a new online identification database, Fusarioid-ID, accessible at www.fusarium.org. The database comprises partial sequences from multiple genes commonly used to identify fusarioid taxa (act1, CaM, his3, rpb1, rpb2, tef1, tub2, ITS, and LSU). In this paper, we also present a nomenclator of names that have been introduced in Fusarium up to January 2021 as well as their current status, types, and diagnostic DNA barcode data. In this study, researchers from 46 countries, representing taxonomists, plant pathologists, medical mycologists, quarantine officials, regulatory agencies, and students, strongly support the application and use of a more precisely delimited Fusarium (= Gibberella) concept to accommodate taxa from the robust monophyletic node F3 on the basis of a well-defined and unique combination of morphological and biochemical features. This F3 node includes, among others, species of the F. fujikuroi, F. incarnatum-equiseti, F. oxysporum, and F. sambucinum species complexes, but not species of Bisifusarium [F. dimerum species complex (SC)], Cyanonectria (F. buxicola SC), Geejayessia (F. staphyleae SC), Neocosmospora (F. solani SC) or Rectifusarium (F. ventricosum SC). The present study represents the first step to generating a new online monograph of Fusarium and allied fusarioid genera (www.fusarium.org)

Fusarium: more than a node or a foot-shaped basal cell

Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae. Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium. Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae. Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae (e.g., Cosmosporella, Macroconia, Microcera). In this study four new genera are introduced, along with 18 new species and 16 new combinations. These names convey information about relationships, morphology, and ecological preference that would otherwise be lost in a broader definition of Fusarium. To assist users to correctly identify fusarioid genera and species, we introduce a new online identification database, Fusarioid-ID, accessible at www.fusarium.org. The database comprises partial sequences from multiple genes commonly used to identify fusarioid taxa (act1, CaM, his3, rpb1, rpb2, tef1, tub2, ITS, and LSU). In this paper, we also present a nomenclator of names that have been introduced in Fusarium up to January 2021 as well as their current status, types, and diagnostic DNA barcode data. In this study, researchers from 46 countries, representing taxonomists, plant pathologists, medical mycologists, quarantine officials, regulatory agencies, and students, strongly support the application and use of a more precisely delimited Fusarium (= Gibberella) concept to accommodate taxa from the robust monophyletic node F3 on the basis of a well-defined and unique combination of morphological and biochemical features. This F3 node includes, among others, species of the F. fujikuroi, F. incarnatum-equiseti, F. oxysporum, and F. sambucinum species complexes, but not species of Bisifusarium [F. dimerum species complex (SC)], Cyanonectria (F. buxicola SC), Geejayessia (F. staphyleae SC), Neocosmospora (F. solani SC) or Rectifusarium (F. ventricosum SC). The present study represents the first step to generating a new online monograph of Fusarium and allied fusarioid genera (www.fusarium.org)

Photochemical oxidation of styrene in acetonitrile solution in presence of H2O2, TiO2/H2O2 and ZnO/H2O2

International audienc

Basic study of the relaxation volume of crystalline defects in bcc iron

International audienceThe relaxation volume (Ωrel), here determined per extra-atom or vacant site, of common crystalline defects in bcc iron (Fe) was calculated from molecular dynamics (MD) simulation cells containing defects of varying size and/or density. To this end, we used both real and reciprocal space data: for the former, the change in the MD cell volume was calculated, while for the latter, we computed X-ray diffraction reciprocal space maps to evaluate the change in the lattice parameter. We show that 〈1 1 0〉 dumbbell self-interstitial atoms have the largest Ωrel, ∼1.5 atomic volume (∼1.5 Ω0). C15 clusters of size 12 and 48 atoms show Ωrel of ∼ 0.91 Ω0 and ∼ 0.98 Ω0, respectively, and similar values are found for ½〈1 1 1〉 and 〈1 0 0〉 interstitial dislocation loops, with Ωrel ∼ 0.905 Ω0 and Ωrel ∼ 0.873 Ω0, respectively. Single vacancies are characterized by a negative Ωrel, ∼−0.11 Ω0. For cavities, Ωrel rapidly increases to approach zero as the clusters grow. Using these values, we managed to predict (with an accuracy better than 2 %) the lattice strain in MD cells containing several types of defects, which indicates that the relaxation volumes can be summed up to estimate the microscopic (i.e., lattice) volume change

Gibberellic acid and indole acetic acid improves salt tolerance in transgenic tomato plants overexpressing LeNHX4 antiporter

Salinity is the major environmental factor that limits plant growth and productivity. High concentrations of Na and Cl ions in soil solution negatively affect K uptake and may cause physiological and metabolic disorders, which adversely affect the plant growth and crop yield. In plants, NHX antiporters play an important role in salt tolerance by catalyzing Na accumulation in vacuoles. In this work, we studied the effect of exogenous plants hormones auxin (IAA) and gibberellic acid (GA), on salinity tolerance, fruit production and quality in transgenic tomato plants overexpressing LeNHX4 antiporter grown under 125 mM NaCl. Here, we have found that IAA and GA positively affected leaf proline, glucose, soluble proteins and ortho-diphenol. In addition, both hormones increased tomato production and fruit quality parameters. These results suggest that GA and IAA improved salinity tolerance and increased fruit yield and quality, probably by increasing the expression or the activity of LeNHX4 antiporter.This work was supported by grants from National Centre for Scientific and Technical Research and Minister for Higher Education, Scientific Research and Executive Training (Morocco) Ref: PPR/2015/21. CSIC Progamme for scientific cooperation for development (I-COOP-B + 2013; Ref: COOPB20053

Bioactivities and in silico study of Pergularia tomentosa L. phytochemicals as potent antimicrobial agents targeting type IIA topoisomerase, TyrRS, and Sap1 virulence proteins

Pergularia tomentosa L. (P. tomentosa) has been largely used in Tunisian folk medicine as remedies against skin diseases, asthma, and bronchitis. The main objectives of this study were to identify phytochemical compounds that have antioxidant and antimicrobial properties from the stem, leaves, and fruit crude methanolic extracts of P. tomentosa, and to search for tyrosyl-tRNA synthetase (TyrRS), topoisomerase type IIA, and Candidapepsin-1 (SAP1) enzyme inhibitors through molecular docking study. Phytochemical quantification revealed that fruit and leaves extracts displayed the highest total flavonoids (582 mg QE/g Ex; 219 mg QE/g Ex) and tannins content (375 mg TAE/g Ex; 216mg TAE/g Ex), also exhibiting significant scavenging activity to decrease free radicals for ABTS, DPPH, β-carotene, and FRAP assay with I.C50 values (> 1 mg/mL). Additionally, promising antimicrobial activities towards different organs have been observed against several bacteria and Candida strains. From the liquid chromatography-mass spectrometry (LC-MS) analysis, five polyphenolic compounds, namely digitoxigenin, digitonin glycoside and calactina in the leaves, kaempferol in the fruit, and calotropagenin in the stems, were identified. They were also analyzed for their drug likeliness, based on computational methods. Molecular docking study affirmed that the binding affinity of calactin and actodigin to the active site of TyrRS, topoisomerase type IIA, and SAP1 target virulence proteins was the highest among the examined dominant compounds. Therefore, this study indicated that P. tomentosa methanolic extracts displayed great potential to become a potent antimicrobial agent and might be a promising source for therapeutic and nutritional functions. These phytocompounds could be further promoted as a candidate for drug discovery and development