A5002524455- Plant-Microbe Interactions and Immunity
- Plant and soil sciences
- Plant Pathogens and Fungal Diseases
- Insect Pest Control Strategies
- Insect Resistance and Genetics
- Entomopathogenic Microorganisms in Pest Control
- Nematode management and characterization studies
- Insect and Pesticide Research
- Mycotoxins in Agriculture and Food
- Plant tissue culture and regeneration
- Plant Disease Management Techniques
- Plant Virus Research Studies
- Essential Oils and Antimicrobial Activity
- Insect-Plant Interactions and Control
- Studies on Chitinases and Chitosanases
- Fungal Biology and Applications
- Plant Parasitism and Resistance
- Mycorrhizal Fungi and Plant Interactions
- Legume Nitrogen Fixing Symbiosis
- Seed Germination and Physiology
- Banana Cultivation and Research
- Enzyme Production and Characterization
- Seed and Plant Biochemistry
- Agriculture and Social Issues
- Protein Hydrolysis and Bioactive Peptides
Tecnológico Nacional de México
2017-2024
Universidad Autónoma Metropolitana
1998-2024
Instituto Tecnológico de Conkal
2014-2024
Instituto Tecnológico de Oaxaca
2012-2022
Autonomous University of Queretaro
2022
Secretaría de Investigación, Innovación y Educación Superior
2022
Instituto Tecnológico de Mérida
2017
Center for Research and Advanced Studies of the National Polytechnic Institute
2005-2007
Instituto Tecnologico de Veracruz
2004
ABSTRACT: Bacillus thuringiensis var israelensis was used to produce chitinase on shrimp wastes by fermentation at 30°C and 250 rpm for 120 h. The enzyme concentrated ultrafiltration adjusted pH 5.8. Antifungal activity phytopathogenic fungi investigated in growing cultures soybean seeds infested with Sclerotium rolfsii . Fungal inhibition found be 100% S. ; 55% 82% A. terreus , flavus, Nigrospora sp, Rhizopus niger Fusarium candidus, Absidia Helminthosporium sp; 45% Curvularia 10% fumigatus...
Practically all Bacillus thuringiensis strains contain a set of self-replicating, extrachromosomal DNA molecules or plasmids, which vary in number and size the different strains. The plasmid patterns obtained from gel electrophoresis have previously been used as tool to characterize strains, but comparison has limited diversity analyzed. In this report, we were able compare 83 type (out 84) 47 additional six serotypes. information showed importance strain characterization procedure indicates...
ABSTRACT A total of 119 Bacillus thuringiensis strains (83 type and 26 native isolates), as well five B. cereus group species, were analyzed by repetitive extragenic palindromic sequence-based PCR analysis (Rep-PCR) fingerprinting. Primers Bc-REP-1 Bc-REP-2 specifically designed according to an 26-bp repeated sequence found in the six genomes reported. 47 polymorphic bands detected, patterns varied from 5 13 number 0.2 3.8 kb size. Virtually each strain showed a distinctive (Bc)-Rep-PCR...
Induced systemic resistance (ISR) is a mechanism involved in the plant defense response against pathogens. Certain members of Bacillus genus are able to promote ISR by maintaining healthy photosynthetic apparatus, which prepares for future stress situations. The goal present study was analyze effect inoculation on expression genes responses pathogens, as part ISR, during interaction Capsicum chinense infected with PepGMV. effects strains pepper plants PepGMV were evaluated observing...
El género <em>Fusarium</em> es un patógeno asociado al marchitamiento del chile y con reducción rendimiento cultivo. Las rizobacterias son una alternativa para mejorar la producción agrícola protección contra fitopatógenos. En el presente estudio se evaluó antagonismo in vitro de diez cepas <em>Bacillus</em> <em>Fusarium equiseti</em> ITCF1 <em>F. solani</em> ITCF2, todas bacterianas inhibieron crecimiento micelial entre 21.28 71.70 %,...
Corynespora cassiicola causa pérdidas en la producción de tomate, su principal control son los agroquímicos. Rizobacterias, como Bacillus spp. representan una alternativa a productos químicos. Se evaluó el efecto subtilis F8 y K47 contra C. cassiicola, se determinó crecimiento micelial fúngico, además, calculó porcentaje inhibición. En hojas desprendidas inoculadas con esporas o filtrado libre células daño por patógeno. B. presencia genes para biosíntesis surfactina, capacidad emulsionante...
Las rizobacterias promueven el crecimiento vegetal e inducen la acumulación de proteínas defensas por lo que se evaluaron aislados Bacillus spp. con mayor producción ácido indol acético en germinación, inducción las B-glucanasas plántulas chile habanero. Los CBRF5, CBRF12 y CBCC57 producen desde 24 h incubación 6.66, 7.95 7.05 µg mL-1, respectivamente. CBRF5 disminuyeron porcentaje mientras no tuvo un efecto significativo. aumentaron área foliar biomasa seca Se observó aumento significativo...
Lipopeptides are bioactive compounds produced by Bacillus spp. This work provides insight into de antifungal activity of lipopeptides through a meta-analysis published studies, in addition following PCR (polymerase chain reaction) technique, the presence genes 20 strains were also analyzed. The studies showed that iturin, fengycin and surfactin significantly reduced growth phytopathogenic fungi. Similarly, when applied to plant tissues, severity damage tissues caused As for detection, we...
La langosta Centroamericana Schistocerca piceifrons es una de las plagas más dañinas en México y Centroamérica. El presente trabajo se realizó para evaluar la fluctuación estacional poblaciones S. p. su asociación con diversidad vegetación, factores climáticos edáficos zona gregarígena Península Yucatán. Se seleccionaron siete sitios muestrearon a lo largo tres estaciones: nortes (diciembre 2013), lluvias (junio 2014) sequías (abril 2014). densidad poblacional fue muestreada transectos 100...

 Colletotrichum gloeosporioides es un hongo fitopatógeno que causa pérdidas considerables en frutales tropicales, principalmente por producir tizones foliares y pudrición de frutos postcosecha. Las bacterias del género Bacillus son una alternativa para el control enfermedades causadas este hongo. El objetivo presente estudio fue evaluar la actividad antagónica pruebas confrontación directa mediante uso filtrado cultivo B. subtilis nativas sureste México. En...
<p>The effects of <em>Bacillus thuringiensis</em> culture supernatants and their derived products were evaluated on whitefly<em> Bemisia tabaci</em> its parasitoid <em>Eretmocerus eremicus</em>. Evaluated variables <em>B. included adult repellence, oviposition deterrence nymphal mortality. The most active mortality <em>E. Residual solid strain ITCBT62 supernatant showed significant repellence (RI, 0.42) (ODI, -70.1). ethanol extract...
The aim of this study was to evaluate the effect inoculation with Bacillus spp. isolates on photosynthetic apparatus Capsicum chinense plants infected PepGMV. In vitro and greenhouse experiments were performed whether improved plants’ performance through increase in efficiency control results showed that despite PepGMV infection, inoculated some had a healthy mechanism, as photochemical parameters gas exchange increased. maximum quantum yield PSII (Fv/Fm) (M9, K46, K47) increased (7.85,...
Abstract Background The two-spotted spider mite, Tetranychus urticae Koch (Trombidiformes: Tetranychidae), is one of the most damaging mites in agriculture. Due to concern for intensive use synthetic acaricides, entomopathogenic fungi represents a feasible alternative T. management. In present study, 7 isolates Metarhizium were characterized physiological and molecularly (based on ITS1-5.8s-ITS2 rDNA) evaluated their acaricidal activity [mortality, mean 90 lethal concentration (LC 50 : LC )...
This work was carried out to evaluate the insecticidal effect of mono, bi and trimetallic nanoparticles (NPs) from leaf extract habanero pepper (Capsicum chinense Jacq.) on red flour beetle (Tribolium castaneum herbst.)and cotton mealybug (Phenacoccus solenopsis Tinsley).The results showed that Cu NPs, Cu/Mn NPs Zn/Cu had high against T. (63%-80% mortality after 96 h).The also P. solenopsis, but a lesser extent (20%-28% h).With regards physicochemical characterization, zeta potential 21.1...
Los residuos de algunos plaguicidas organo-clorados presentes en lasmuestras leche pasteurizada analizadas representan un riesgo para lasalud los consumidores. Se determino el contenido organoclorados 96 muestras pasteurizada, por cromatografia gas liquido. Las fueron colectadas quincenalmente y durante ano la Ciudad Mexico, cuatro marcas comerciales.En las se valor promedio X µg/gbase grasa, razon X/LMR porcentaje que sobrepaso LMR. valores encontrados siguientes, respectivamente:(a +...