Recent advances on research of native prawn Macrobrachium americanum (Decapoda: Palaemonidae) with aquaculture and conservation purposes

Yuneisy Milagro Agüero Fernández MIRIAM VICTORIA MARTIN MANZO MARITZA LOURDES SOBERANES YEPIZ Marcelo Ulises García Guerrero Yuniel Méndez Martínez Luis Hector Hernandez Hernandez Laura S López Greco Edilmar Cortés Jacinto (2022, [Artículo])

"Where good management practices on aquaculture are mandatory. The economic and ecological importance of prawns of the Genus Macrobrachium cause an impact at a global level involving economic, academic and social aspects. Macrobrachium americanum appears as one of the genus species with high nutritional value and an economic demand in the national and international markets, as well as a vital income for fisherman and producers of this species. For researchers, it is a challenge to find solutions to culture and propose conservation measures for M. americanum with emphasis on development, nutrition and reproduction. Although there are scientific studies supporting the economic importance of this species, our knowledge about its cultivation, reproduction and conservation is limited. This paper summarizes the latest studies made in cooperation with M. americanum in research lead by the Centro de Investigaciones Biológicas del Noroeste, Mexico. After several years of continuous research, it is considered that those efforts have produced useful information for the sustainable exploitation, conservation and basic management practices of this species."

Freshwater ecosystem, growth rate, native prawn species, conservation, sustainable fishing BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA ANIMAL (ZOOLOGÍA) ECOLOGÍA ANIMAL ECOLOGÍA ANIMAL

Editorial: The Approach to Complex Systems in Fisheries

César Augusto Salinas Zavala MARIA VERONICA MORALES ZARATE ANDRES MIGUEL CISNEROS MONTEMAYOR Luis Antonio Bojórquez Tapia (2022, [Artículo])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CIENCIAS AGRARIAS PECES Y FAUNA SILVESTRE DINÁMICA DE LAS POBLACIONES DINÁMICA DE LAS POBLACIONES

Miel de Xunankab (Melipona beecheii): una contribución sobre su capacidad antioxidante, actividad antibacteriana y la relación con la flora néctar-polinífera

LIZBETH ARELI CHIMAL CAHUICH ALEJANDRO ANTONIO ARAGON MORENO EDWARD EMMANUEL BRITO ESTRELLA JOSE FAUSTO RIVERO CRUZ BLANCA ESTELA RIVERO CRUZ AURORA XOLALPA AROCHE (2023, [Artículo])

México posee alrededor de 1900 especies de abejas, 46 son abejas sin aguijón. En la península de Yucatán es posible encontrar 19 de ellas. Los antiguos mayas desarrollaron el manejo y reproducción especialmente de la abeja Xunancab (Melipona beecheii) para uso de sus productos (miel y cera). Investigaciones corroboran las propiedades medicinales que contiene la miel de esta abeja en beneficio de la salud humana. En este trabajo se evaluó la capacidad antioxidante, actividad antibacteriana y su relación con la flora néctar-polinífera de mieles de M. beecheii en meliponarios con distintas áreas de crecimiento demográfico y vegetativo.

ABEJAS SIN AGUIJON MELIPONA BEECHEII MELISOPALINOLOGIA ZONA MAYA BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Diversidad biocultural de tomate nativo en Oaxaca, México

JOSE CRUZ CARRILLO RODRIGUEZ NOEL SOSA HERNÁNDEZ SOSA HERNÁNDEZ ARACELI MINERVA VERA GUZMAN JOSE LUIS CHAVEZ SERVIA (2023, [Artículo])

El tomate o jitomate mexicano fue cultivado desde la época precolombina y se comercializaba en el mercado de Tenochtitlán, y la forma silvestre posiblemente migró desde Sudamérica. No obstante, las formas silvestres y cultivadas siguen evolucionando a lo largo de Oaxaca. La geografía oaxaqueña se agrupa en ocho regiones donde se recrea la diversidad del tomate, tanto de las formas silvestres de fruto redondo y pequeño, como de las variedades nativas cultivadas de formas achatadas acostilladas, que son reconocidas con nombres en lenguas originarias y apreciadas por el sabor, aroma y textura que les confieren a los platillos locales.

AGROSISTEMAS TRADICIONALES CONSERVACION IN SITU CULTURA TRADICION PUEBLOS ORIGINARIOS SOLANACEAE. BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Un gen para ti, un gen para mí: flujo genético entre parientes silvestres y plantas domesticadas

Mauricio Heredia Pech MARIANA CHAVEZ PESQUEIRA (2023, [Artículo])

El flujo genético se refiere al movimiento de genes entre individuos o poblaciones. En ocasiones puede darse también entre especies cercanamente emparentadas, como en el caso de las plantas domesticadas y sus parientes silvestres. Los parientes silvestres son de gran importancia para la seguridad alimentaria debido a su gran diversidad genética, que los convierte en una reserva natural de genes. Las consecuencias del flujo genético silvestre-domesticado dependerán de la intensidad y dirección en la que se muevan los genes, siendo la preocupación principal el riesgo que puede existir para el mantenimiento de la diversidad genética de los parientes silvestres.

CONSERVACION DISPERSION DIVERSIDAD GENETICA FUERZA EVOLUTIVA SELECCION ARTIFICIAL BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Una breve pesquisa sobre Crossopetalum gaumeri (Celastraceae). To be, or not to be [endemic], that is the question

RODRIGO STEFANO DUNO DIEGO FRANCISCO ANGULO PEREZ GERMAN CARNEVALI FERNANDEZ CONCHA (2022, [Artículo])

A finales de abril del 2022, un [malvado] colega del herbario CICY informó que habíamos olvidado una especie endémica en nuestra última actualización de endemismo para la Provincia Biótica Península de Yucatán ¡Otra más! Después de algunas angustias y pesquisas sobre la planta, pensamos que era una excelente oportunidad para hablar de una hermosa (o al menos interesante) planta de la región y presentar el caso. Se trata de Crossopetalum gaumeri, de la familia Celastraceae.

ENDEMISMO FLORA FLORA AUTOCTONA FLORISTICA YUCATAN BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Flora aromática de la península de Yucatán: importancia del olor para entender los patrones de uso

Luz María del Carmen Calvo Irabien ROSA GRIJALVA ARANGO MARIELA IX MAGAÑA WILSON UH GONGORA (2022, [Artículo])

Los seres humanos hemos utilizado nuestro sentido del olfato para guiar el uso que le damos a las plantas con distintos objetivos. La presencia de moléculas volátiles es una característica particular de algunas especies del mundo vegetal que influye en la forma como usamos la flora que nos rodea.

ACEITE ESENCIAL ENDEMICA OLOR USOS BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Coronin is a component of the endocytic collar of hyphae of neurospora crassa and is necessary for normal growth and morphogenesis

RAMON OSVALDO ECHAURI ESPINOSA (2012, [Artículo])

Coronin plays a major role in the organization and dynamics of actin in yeast. To investigate the role of coronin in a filamentous fungus (Neurospora crassa), we examined its subcellular localization using fluorescent proteins and the phenotypic consequences of coronin gene (crn-1) deletion in hyphal morphogenesis, Spitzenkörper behavior and endocytosis. Coronin-GFP was localized in patches, forming a subapical collar near the hyphal apex; significantly, it was absent from the apex. The subapical patches of coronin colocalized with fimbrin, Arp2/3 complex, and actin, altogether comprising the endocytic collar. Deletion of crn-1 resulted in reduced hyphal growth rates, distorted hyphal morphology, uneven wall thickness, and delayed establishment of polarity during germination; it also affected growth directionality and increased branching. The Spitzenkörper of Δcrn-1 mutant was unstable; it appeared and disappeared intermittently giving rise to periods of hyphoid-like and isotropic growth respectively. Uptake of FM4-64 in Δcrn-1 mutant indicated a partial disruption in endocytosis. These observations underscore coronin as an important component of F-actin remodeling in N. crassa. Although coronin is not essential in this fungus, its deletion influenced negatively the operation of the actin cytoskeleton involved in the orderly deployment of the apical growth apparatus, thus preventing normal hyphal growth and morphogenesis. © 2012 Echauri-Espinosa et al.

actin related protein 2-3 complex, F actin, fimbrin protein, fluorescent dye, fungal protein, fungal protein coronin, green fluorescent protein, unclassified drug, actin binding protein, coronin proteins, fungal protein, article, cell polarity, contr BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA MICROBIOLOGÍA MICROBIOLOGÍA

Effect of antimicrobial nanocomposites on Vibrio cholerae lifestyles: Pellicle biofilm, planktonic and surface-attached biofilm

ANAID MEZA VILLEZCAS (2019, [Artículo])

Vibrio cholerae is an important human pathogen causing intestinal disease with a high incidence in developing countries. V. cholerae can switch between planktonic and biofilm lifestyles. Biofilm formation is determinant for transmission, virulence and antibiotic resistance. Due to the enhanced antibiotic resistance observed by bacterial pathogens, antimicrobial nanomaterials have been used to combat infections by stopping bacterial growth and preventing biofilm formation. In this study, the effect of the nanocomposites zeolite-embedded silver (Ag), copper (Cu), or zinc (Zn) nanoparticles (NPs) was evaluated in V. cholerae planktonic cells, and in two biofilm states: pellicle biofilm (PB), formed between air-liquid interphase, and surface-attached biofilm (SB), formed at solid-liquid interfaces. Each nanocomposite type had a distinctive antimicrobial effect altering each V. cholerae lifestyles differently. The ZEO-AgNPs nanocomposite inhibited PB formation at 4 μg/ml, and prevented SB formation and eliminated planktonic cells at 8 μg/ml. In contrast, the nanocomposites ZEO-CuNPs and ZEO-ZnNPs affect V. cholerae viability but did not completely avoid bacterial growth. At transcriptional level, depending on the nanoparticles and biofilm type, nanocomposites modified the relative expression of the vpsL, rbmA and bap1, genes involved in biofilm formation. Furthermore, the relative abundance of the outer membrane proteins OmpT, OmpU, OmpA and OmpW also differs among treatments in PB and SB. This work provides a basis for further study of the nanomaterials effect at structural, genetic and proteomic levels to understand the response mechanisms of V. cholerae against metallic nanoparticles. © 2019 Meza-Villezcas et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

bacterial protein, copper nanoparticle, nanocomposite, OmpT protein, OmpU protein, OmpW protein, outer membrane protein A, silver nanoparticle, unclassified drug, zeolite, zinc nanoparticle, antiinfective agent, copper, metal nanoparticle, nanocompos BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA MICROBIOLOGÍA MICROBIOLOGÍA

Whole-genome comparison between reference sequences and oyster Vibrio vulnificus C-genotype strains

CARLOS ABRAHAM GUERRERO RUIZ (2019, [Artículo])

Whole-genome sequences of Vibrio vulnificus clinical genotype (C-genotype) from the CICESE Culture Collection, isolated from oysters, were compared with reference sequences of CMCP6 and YJ016 V. vulnificus C-genotype strains of clinical origin. The RAST web server estimated the whole genome to be ~4.8 Mb in CICESE strain 316 and ~4.7 Mb in CICESE strain 325. No plasmids were detected in the CICESE strains. Based on a phylogenetic tree that was constructed with the whole-genome results, we observed high similarity between the reference sequences and oyster C-genotype isolates and a sharp contrast with environmental genotype (E-genotype) reference sequences, indicating that the differences between the C- and E-genotypes do not necessarily correspond to their isolation origin. The CICESE strains share 3488 genes (63.2%) with the YJ016 strain and 3500 genes (63.9%) with the CMCP6 strain. A total of 237 pathogenicity associated genes were selected from reference clinical strains, where—92 genes were from CMCP6, 126 genes from YJ016, and 19 from MO6-24/ O; the presence or absence of these genes was recorded for the CICESE strains. Of the 92 genes that were selected for CMCP6, 67 were present in both CICESE strains, as were as 86 of the 126 YJ016 genes and 13 of the 19 MO6-24/O genes. The detection of elements that are related to virulence in CICESE strains—such as the RTX gene cluster, vvhA and vvpE, the type IV pili cluster, the XII genomic island, and the viuB genes, suggests that environmental isolates with the C-genotype, have significant potential for infection. © 2019 Guerrero et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Article, bacterial gene, bacterial strain, bacterial virulence, comparative study, controlled study, gene cluster, gene identification, genomic island, genotype, nonhuman, phylogenetic tree, sequence analysis, strain identification, Vibrio vulnificus BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA GENÉTICA