Discovery of an unknown diversity of Leucinodes species damaging Solanaceae fruits in sub-Saharan Africa and moving in trade (Insecta, Lepidoptera, Pyraloidea)

The larvae of the Old World genera Leucinodes Guenée, 1854 and Sceliodes Guenée, 1854 are internal feeders in the fruits of Solanaceae, causing economic damage to cultivated plants like Solanum melongena and S. aethiopicum . In sub-Saharan Africa five nominal species of Leucinodes and one of Sceliodes occur. One of these species, the eggplant fruit and shoot borer L. orbonalis Guenée, 1854, is regarded as regularly intercepted from Africa and Asia in Europe, North and South America and is therefore a quarantine pest on these continents. We investigate the taxonomy of African Leucinodes and Sceliodes based on morpho - logical characters in wing pattern, genitalia and larvae, as well as mitochondrial DNA, providing these data for identification of all life stages. The results suggest that both genera are congeneric, with Sceliodes syn. n. established as junior subjective synonym of Leucinodes . L. orbonalis is described from Asia and none of the samples investigated from Africa belong to this species. Instead, sub-Saharan Africa harbours a complex of eight endemic Leucinodes species. Among the former nominal species of Leucinodes (and Sceliodes ) from Africa, only L. laisalis (Walker, 1859), comb. n. ( Sceliodes ) is confirmed, with Leucinodes translucidalis Gaede, 1917, syn. n. as a junior subjective synonym. The other African Leucinodes species were unknown to science and are described as new: L. africensis sp. n. , L. ethiopica sp. n. , L. kenyensis sp. n. , L. malawiensis sp. n. , L. pseudorbonalis sp. n. , L. rimavallis sp. n. and L. ugandensis sp. n. An identification key based on male genitalia is provided for the African Leucinodes species. Most imports of Leucinodes specimens from Africa into Europe refer to Leucinodes africensis , which has been frequently imported with fruits during the last 50 years. In contrast, L. laisalis has been much less frequently re - corded, and L. pseudorbonalis as well as L. rimavallis only very recently in fruit imports from Uganda. Accordingly, interceptions of Leucinodes from Africa into other continents will need to be re-investigated for their species identity and will likely require, at least in parts, revisions of the quarantine regulations. The following African taxa are excluded from Leucinodes : Hyperanalyta Strand, 1918, syn. rev. as revised synonym of Analyta Lederer, 1863; Analyta apicalis (Hampson, 1896), comb. n. ( Leucinodes ); Lygropia aureomarginalis (Gaede, 1916), comb. n. ( Leucinodes ); Syllepte hemichionalis Mabille, 1900, comb. rev. , S. hemichionalis idalis Viette, 1958, comb. rev. and S. vagans (Tutt, 1890), comb. n. ( Aphytoceros ). Deanolis iriocapna (Meyrick, 1938), comb. n. from Indonesia is originally described and misplaced in Sceliodes , and L. cordalis (Doubleday, 1843), comb. n. ( Margaritia ) from New Zealand, L. raondry (Viette, 1981) comb. n. ( Daraba ) from Madagascar as well as L. grisealis (Kenrick, 1912), comb. n. ( Sceliodes ) from New Guinea are transferred from Sceliodes to Leucinodes . While Leucinodes is now revised from Africa, it still needs further revision in Asia.publishedVersio

Pink Root Disease of Onions and Its Control in Texas.

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Low Doses of the Carcinogen Furan Alter Cell Cycle and Apoptosis Gene Expression in Rat Liver Independent of DNA Methylation

BACKGROUND: Evidence of potent rodent carcinogenicity via an unclear mechanism suggests that furan in various foods [leading to an intake of up to 3.5 mu g/kg body weight (bw)/day] may present a potential risk to human health

Comprehensive characterization of molecular interactions based on nanomechanics

Molecular interaction is a key concept in our understanding of the biological mechanisms of life. Two physical properties change when one molecular partner binds to another. Firstly, the masses combine and secondly, the structure of at least one binding partner is altered, mechanically transducing the binding into subsequent biological reactions. Here we present a nanomechanical micro-array technique for bio-medical research, which not only monitors the binding of effector molecules to their target but also the subsequent effect on a biological system in vitro. This label-free and real-time method directly and simultaneously tracks mass and nanomechanical changes at the sensor interface using micro-cantilever technology. To prove the concept we measured lipid vesicle (approximately 748*10(6) Da) adsorption on the sensor interface followed by subsequent binding of the bee venom peptide melittin (2840 Da) to the vesicles. The results show the high dynamic range of the instrument and that measuring the mass and structural changes simultaneously allow a comprehensive discussion of molecular interactions

Evidence for a LOS and a capsular polysaccharide in Capnocytophaga canimorsus

Capnocytophaga canimorsus is a dog's and cat's oral commensal which can cause fatal human infections upon bites or scratches. Infections mainly start with flu-like symptoms but can rapidly evolve in fatal septicaemia with a mortality as high as 40%. Here we present the discovery of a polysaccharide capsule (CPS) at the surface of C. canimorsus 5 (Cc5), a strain isolated from a fulminant septicaemia. We provide genetic and chemical data showing that this capsule is related to the lipooligosaccharide (LOS) and probably composed of the same polysaccharide units. A CPS was also found in nine out of nine other strains of C. canimorsus. In addition, the genomes of three of these strains, sequenced previously, contain genes similar to those encoding CPS biosynthesis in Cc5. Thus, the presence of a CPS is likely to be a common property of C. canimorsus. The CPS and not the LOS confers protection against the bactericidal effect of human serum and phagocytosis by macrophages. An antiserum raised against the capsule increased the killing of C. canimorsus by human serum thus showing that anti-capsule antibodies have a protective role. These findings provide a new major element in the understanding of the pathogenesis of C. canimorsus

A Comparative Study between Staplers and Suture (Silk 2-0) for Skin Closure in Cesarean Sections at Gandaki Medical College Teaching Hospital

Background: Skin closure in the abdominal surgeries is an important factor that affects the prognosis of wound in terms of hospital stay as well as overall outcome of the surgery. Objectives: Cesarean section being the commonly performed operation, choice of suture material has the unexceptional role on it. This study has been performed with an objective to look for the merits and demerits of the skin closure by suture (Silk 2-0) and stapler. Methods: Prospective comparative study conducted among the patients admitted in a Maternity Ward of Gandaki Medical College Teaching Hospital for elective and emergency cesarean section. The comparison has been made in terms of time taken during the skin closure, presence or absence of soakage and wound dehiscence, day of suture removal and pain during the suture removal. Results: The average time taken for skin closure for suture group was found to be 5.46 min (±0.97) and the same for stapler group was found to be 1.22 min (±0.15) respectively. Similarly, the mean day of stitch removal in suture and staples were found to be 6.94 (±1.75) and 7.95 (±1.89) respectively. Surgical site infection (SSI) i.e. soakage was present in eight percent of those in suture group and 20% in stapler group. Wound dehiscence was present in two percent among the suture group and five percent among the stapler group. The severity of pain is more in stapler group than that of suture group during its removal. Conclusions: Our study concluded suture being superior to staplers for skin closure during cesarean section. Though time taken for the closure is less in the stapler group, other factors like wound complications, duration of hospital stay, pain during its removal favored for the suture to be used. J-GMC-N | Volume 11 | Issue 01 | January-June 2018, Page: 1-

Mutation Detection with Next-Generation Resequencing through a Mediator Genome

The affordability of next generation sequencing (NGS) is transforming the field of mutation analysis in bacteria. The genetic basis for phenotype alteration can be identified directly by sequencing the entire genome of the mutant and comparing it to the wild-type (WT) genome, thus identifying acquired mutations. A major limitation for this approach is the need for an a-priori sequenced reference genome for the WT organism, as the short reads of most current NGS approaches usually prohibit de-novo genome assembly. To overcome this limitation we propose a general framework that utilizes the genome of relative organisms as mediators for comparing WT and mutant bacteria. Under this framework, both mutant and WT genomes are sequenced with NGS, and the short sequencing reads are mapped to the mediator genome. Variations between the mutant and the mediator that recur in the WT are ignored, thus pinpointing the differences between the mutant and the WT. To validate this approach we sequenced the genome of Bdellovibrio bacteriovorus 109J, an obligatory bacterial predator, and its prey-independent mutant, and compared both to the mediator species Bdellovibrio bacteriovorus HD100. Although the mutant and the mediator sequences differed in more than 28,000 nucleotide positions, our approach enabled pinpointing the single causative mutation. Experimental validation in 53 additional mutants further established the implicated gene. Our approach extends the applicability of NGS-based mutant analyses beyond the domain of available reference genomes

Creating the cultures of the future: cultural strategy, policy and institutions in Gramsci. Part two: Cultural strategy and institutions in Gramsci’s early writings and political practice

In this article, I consider Gramsci’s pre-prison writings and political practice in relation to questions of cultural strategy and institutions. I argue that the analysis of these early texts, which were written in the years in which Gramsci was active in party organisation and leadership, is fundamental not only for understanding the nature of Gramsci’s early and continued involvement with questions of cultural strategy and institutions, but also as a key for interpreting cultural policy themes that he later developed in the prison notebooks, and which originated in earlier debates