Girardia festae (Borelli, 1898) (Platyhelminthes: Tricladida: Dugesiidae): Distribution extension in a high-altitude lake from Colombia

We revise the Neotropical distribution of Girardia festae (Platyhelminthes, Dugesiidae) following a new record in a Colombian high-altitude lake. G. festae is a freshwater planarian known mainly in the Andean Cordillera from Venezuela to Argentina. The species' key reproductive features include: ventral testes, bottle-like penis papilla, and sperm ducts joining to the penis bulb latero-dorsally.Fil: Brusa, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Zoología Invertebrados; ArgentinaFil: Negrete, Lisandro Hector Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División de Zoología Invertebrados; ArgentinaFil: Herrera Martínez, Yimy. Universidad Pedagógica Nacional de Colombia.; ColombiaFil: Herrando Pérez, Salvador. University of Adelaide; Australia. Bioestudios Saganta; Españ

Health Risks Associated with Heavy Metals in Imported Fish in a Coastal City in Colombia

Colombia is a fish exporter and consumer country because of its geographical location. Since 2012, imported fish have become a more economical option than domestic species due to free trade agreements. Concentrations of Pb, Cd, and Zn were evaluated in three imported and highly commercialized fish species in a city on the Caribbean coast of Colombia: Prochilodus lineatus, Prochilodus reticulatus, and Pangasianodon hypophthalmus, plus one brand of canned tuna and one brand of sardines. The canned species showed the highest values for Pb, Cd, and Zn; canned tuna (oil-packed) contained 0.189 ± 0.047 mg/kg Pb and 238.93 ± 76.43 mg/kg Zn, while canned sardines contained 0.111 ± 0.099 mg/kg Cd, suggesting a relationship between the canning process and the metal concentrations. The estimated daily intake (EDI) and hazard quotient (HQ) suggested that there is no risk for consumer health in the short term, but the presence of these heavy metals certainly should be a concern in the long term because of the bioaccumulation phenomenon due to the high intake of these fish species in this coastal and tourist community. It is recommended that continuous monitoring of heavy metal concentrations take place to protect communities in a local and global context

Acumulación de mercurio (hg) por caña flecha (gynerium sagittatum) (aubl) beauv. in vitro

Accumulation of mercury (Hg) by arrow cane (Gynerium sagittatum) (Aubl) Beauv. in vitro RESUMEN  En este estudio se evaluó, in vitro, la capacidad de acumulación de mercurio (Hg) que pueda poseer la caña flecha (Gynerium sagittatum) (Aubl) Beauv. como una alternativa viable de ser implementada para la rehabilitación de suelos contaminados. Este estudio fue realizado en el laboratorio de Biotecnología Vegetal de la Universidad de Sucre (9º18’ N, 75º23’ O). Se usó un diseño experimental de bloques al azar, un análisis de varianza para comparación de medias, una prueba de Tukey (p≤0,05) para la establecer las diferencias significativas entre los tratamientos, pruebas de normalidad (Kolmogorov-Smirnov) y test de homogeneidad de varianza de Bartlett. Los análisis de mercurio se realizaron en un espectrofotómetro de absorción atómica Thermo Electron S4, provisto de una celda con ventanas de cuarzo, por el método de espectroscopia de absorción atómica con vapor frío. Los resultados muestran que la parte de la planta que presenta mayor acumulación es la raíz con 55,98 µg g-1 HgT, seguida de los tallos-hojas con 14,84 µg g-1 HgT, valores relacionados con el grado de concentración del metal en el medio de cultivo. Además, la acumulación de mercurio en raíces y tallos aumentó con el tiempo. En conclusión, in vitro esta planta acumula Hg debido a las altas concentraciones en sus tejidos sin afectar la viabilidad de las plantas.Palabras clave: fitorremediación, remoción, metales pesados.ABSTRACTIn this in vitro study was evaluated the potential for accumulation of mercury (Hg) that can hold the cane arrow (Gynerium sagittatum) (Aubl) Beauv. as a viable alternative to be implemented for the rehabilitation of contaminated soils. This study was conducted at the Plant Biotechnology Laboratory, University of Sucre (9º 18' N, 75° 23' W). An experimental design was randomized block, an analysis of variance to compare means, Tukey test (p ≤ 0.05) to establish significant differences between the treatments, tests of normality (Kolmogorov-Smirnov) and homogeneity test Bartlett variance. The mercury analyses were performed on atomic absorption spectrophotometer Thermo Electron S4, a cell equipped with quartz windows, by the method of atomic absorption spectrometry with cold steam. The results show that the plant part that presents the greatest accumulation is the root with 55.98 mg g-1 HgT, followed by the stems, leaves 14.84 g g-1 HgT and these values ​​are related to the degree of metal concentration in the culture medium. Furthermore, the accumulation of mercury in roots and stems increased with time. In conclusion, in vitro this plant accumulates due to the high Hg concentrations in their tissues without affecting the viability of plants.Key words: Phytoremediation, removal, heavy metals

Psychrobacter pygoscelis sp. Nov. isolated from the penguin pygoscelis papua

Indexación: Scopus.One slightly beige-white pigmented, Gram-stain-negative, rod-shaped bacterium, strain I-STPP5bT, was isolated from the trachea of a Gentoo penguin chick individual (Pygoscelin papua) investigated in Fildes Bay, Chilean Antarctic (62° 12′ S, 58° 57′ W). I-STPP5bT consists of a 3.4 Mb chromosome with a DNA G+C content of 44.4 mol%. Of the 3056 predicted genes, 1206 were annotated as hypothetical proteins and 51 were tRNAs. Phylogenetic analysis based on nearly full-length 16S rRNA gene sequences showed that the isolate shared a 16S rRNA gene sequence identity to the type strains of Psychrobacter phenylpyruvicus (98.8%), Psychrobacter arenosus and Psychrobacter pasteurii (both 98.3%), Psychrobacter piechaudii (98.2%) and Psychrobacter sanguinis (98.1%), but 16S rRNA gene sequence similarities to all other Psychrobacter species were ≤98.0%. Partial gyrB nucleotide and amino acid sequence similarities among strain STPP5bT and the next related type strains were all below 81.8 and 92.9%, respectively. DNA–DNA hybridisation (DDH) with P. phenylpyruvicus LMG 5372T, P. arenosus DSM 15389T and P. sanguinis DSM 23635T also showed low values (all below 30%). The main cellular fatty acids of the strain were C18:1 ω9c and C16:1 ω7c and/or C16:1 ω6c. Based on phylogenetic, chemotaxonomic, genomic and phenotypic analyses we propose a new species of the genus Psychrobacter, with the name Psychrobacter pygoscelis sp. nov. and strain I-STPP5bT (=CIP 111410T= CCM 8799T=LMG 30301T) as type strain.https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.00373

Espondilodiscitis infecciosa por abscesos de psoas secundario a infección por Burkholderia cepacia

Context: Infection by the Burkholderia cepacia complex is a clinical entity rarely reported in the literature outside the context of pneumonia in patients with cystic fibrosis or chronic granulomatosis; its appearance in soft tissues or the articular system is scarce.   Case description: We report the case of a 59-year-old man with diabetes mellitus 2 who was admitted with chronic low back pain secondary to multiple bilateral abscesses at the level of the psoas muscles associated with spondylodiscitis. After draining the abscesses, Burkholderia cepacia was isolated in culture.   Conclusions: This is the second report of deep posed abscess associated with infection by bacteria of the genus Burkholderia cepacia. The extrapulmonary and specifically musculoskeletal behavior is a fact to consider within the spectrum of clinical manifestations associated with this disease.   Key words: psoas abscess, Burkholderia cepacia, spondylodiscitisIntroducción: La infección por el complejo Burkholderia cepacia se trata de una entidad clínica raramente reportada en la literatura fuera del contexto de neumonía en pacientes con fibrosis quística o granulomatosis crónica; su aparición en tejidos blandos o del sistema articular son escasos. Caso: Reportamos el caso de un hombre de 59 años de edad con diabetes mellitus 2 quien ingresó con cuadro de dolor lumbar crónico secundario a múltiples abscesos de forma bilateral a nivel de los músculos psoas asociado a espondilodiscitis. Tras el drenaje de los abscesos se aisló en cultivo Burkholderia cepacia. Conclusiones: Este es el segundo reporte de absceso profundo de posas a nivel mundial y el primero en el continente americano asociado a infección por bacterias del género Burkholderia cepacia. El comportamiento extrapulmonar y específicamente muscoloesquelético es un hecho a considerar dentro del espectro de manifestaciones clínicas asociadas a esta enfermedad

Espondilodiscitis infecciosa por abscesos de psoas secundario a infección por Burkholderia cepacia

Context: Infection by the Burkholderia cepacia complex is a clinical entity rarely reported in the literature outside the context of pneumonia in patients with cystic fibrosis or chronic granulomatosis; its appearance in soft tissues or the articular system is scarce.   Case description: We report the case of a 59-year-old man with diabetes mellitus 2 who was admitted with chronic low back pain secondary to multiple bilateral abscesses at the level of the psoas muscles associated with spondylodiscitis. After draining the abscesses, Burkholderia cepacia was isolated in culture.   Conclusions: This is the second report of deep posed abscess associated with infection by bacteria of the genus Burkholderia cepacia. The extrapulmonary and specifically musculoskeletal behavior is a fact to consider within the spectrum of clinical manifestations associated with this disease.   Key words: psoas abscess, Burkholderia cepacia, spondylodiscitisIntroducción: La infección por el complejo Burkholderia cepacia se trata de una entidad clínica raramente reportada en la literatura fuera del contexto de neumonía en pacientes con fibrosis quística o granulomatosis crónica; su aparición en tejidos blandos o del sistema articular son escasos. Caso: Reportamos el caso de un hombre de 59 años de edad con diabetes mellitus 2 quien ingresó con cuadro de dolor lumbar crónico secundario a múltiples abscesos de forma bilateral a nivel de los músculos psoas asociado a espondilodiscitis. Tras el drenaje de los abscesos se aisló en cultivo Burkholderia cepacia. Conclusiones: Este es el segundo reporte de absceso profundo de posas a nivel mundial y el primero en el continente americano asociado a infección por bacterias del género Burkholderia cepacia. El comportamiento extrapulmonar y específicamente muscoloesquelético es un hecho a considerar dentro del espectro de manifestaciones clínicas asociadas a esta enfermedad

Mediating role of inclusive leadership in innovative teaching behavior

Purpose: The prime purpose of current research is to investigate the mediating role of inclusive leadership between teaching policy, teachingresources,and innovativeteaching behavior. Design/methodology/approach: This research has collected data on a Likert scale questionnaire and the structural equation modeling technique is applied in data analysis.The population of this research are teachers in Peru. Findings: The findings of this research highlighted that the mediating role of inclusive leadership is significant between teaching policy, teachingresources,and innovative teaching behavior.Furthermore, the research highlighted that the direct impact of teaching policy, teachingresources, and inclusiveleadership are significant in innovative teaching behavior.Research limitations/implications: This research has theoretical implications as it has enhanced the model of innovative teaching with mediating role of inclusive leadership. Furthermore, the practical implications of this research can improve teaching behavior innovatively by adopting new policies for teaching and utilizing appropriate resources for it. Originality/value: This research is designed on the original idea to improve the model of innovative teaching behavior with inclusive leadership to provide remarkable implications in the knowledge and practice.Campus Chimbot