Oswaldo Guzmán-López

ORCID: 0000-0002-7803-4513
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About
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Research Areas
  • Fungal Biology and Applications
  • Plant and soil sciences
  • Microbial bioremediation and biosurfactants
  • Plant Pathogens and Fungal Diseases
  • Hemiptera Insect Studies
  • Biofuel production and bioconversion
  • Water Quality Monitoring and Analysis
  • Mycotoxins in Agriculture and Food
  • Insect and Pesticide Research
  • Invertebrate Taxonomy and Ecology
  • Soil Carbon and Nitrogen Dynamics
  • Chromium effects and bioremediation
  • Advanced oxidation water treatment
  • Mercury impact and mitigation studies
  • Microbial Natural Products and Biosynthesis
  • Forest Insect Ecology and Management
  • Agroforestry and silvopastoral systems
  • Probiotics and Fermented Foods
  • Soil and Environmental Studies
  • Arsenic contamination and mitigation
  • Plant-Microbe Interactions and Immunity
  • Cassava research and cyanide
  • Microbial Metabolism and Applications
  • Phytochemicals and Antioxidant Activities
  • Turfgrass Adaptation and Management

Universidad Veracruzana
2013-2024

Centro Universitario de Coatzacoalcos
2021

Universidad Autónoma Metropolitana
2007-2011

<p><strong>Background.</strong> Fungi of the genus <em>Ganoderma </em>cause white rot wood in forest trees and economic importance due to variety lignocellulolytic enzymes they produce, which may be widely applied for environmental, food production, biotechnological purposes, among others. <strong>Methodology</strong>. Fourteen strains </em>isolated from central region Veracruz were studied. Qualitative assays conducted Petri dishes determine...

10.56369/tsaes.5705 article EN cc-by Tropical and Subtropical Agroecosystems 2025-02-12

Oil activity has generated severe problems of soil contamination. Different techniques have been employed for the removal pollutants, which are mainly used separately as treatments, but if combined, could be improved. The aim this study was to remove total petroleum hydrocarbons (TPH) from artificially contaminated with crude oil using Fenton oxidation followed by biostimulation nutrients and palm bagasse (OPB) an amendment. Microcosm units were treated H2O2 Fe citrate at 30% humidity 25 °C....

10.1080/02757540.2021.1909003 article EN Chemistry and Ecology 2021-04-13

<p><strong>Background.</strong> Mangrove ecosystems in oil-producing areas the south of Veracruz, Mexico are permanently threatened by oil spill contamination. In this context, <em>Rhizophora</em> <em>mangle</em> and microbiota associated with its rhizosphere have adapted over time to processes bioremediation natural attenuation petroleum hydrocarbons. <strong>Objective.</strong> To evaluate hydrocarbonoclastic potential filamentous fungi...

10.56369/tsaes.5516 article EN cc-by Tropical and Subtropical Agroecosystems 2024-06-11

<p><strong>Background:</strong> The genus <em>Xylaria</em> comprises over 300 fungal species distributed worldwide that exhibit adaptability to various ecological roles. Consequently, their potential for the synthesis of bioactive molecules with antibacterial and antivirulence properties has been reported. <strong>Objective:</strong> To characterize sp. (OG-03) strain against phytopathogenic bacteria (<em>Pseudomonas...

10.56369/tsaes.4910 article EN cc-by Tropical and Subtropical Agroecosystems 2023-09-18

La broca del café Hypothenemus hampei, es uno de los insectos plaga más importantes a nivel mundial que dañan al fruto café. El objetivo fue evaluar vinagres y extractos plantas mezclados con etanol para ser utilizados como atrayentes la captura insecto. Se utilizaron por primera vez las mezclas: etanol-albahaca, etanol-ruda, etanol-romero, etanolvinagre blanco etanol-vinagre manzana, en una proporción 1:1 testigo metanol-etanol 3:1, utilizando trampas artesanales, un diseño completamente...

10.35249/rche.47.2.21.14 article ES REVISTA CHILENA DE ENTOMOLOGÍA 2021-05-31

Los manglares son uno de los tipos humedales costeros presentes en la cuenca baja del río Coatzacoalcos que, a pesar su creciente deterioro, conservan importancia ecológica y económica. El objetivo presente estudio fué identificar principal actividad antropogénica que ha contribuído reducir cobertura manglar Coatzacoalcos, mediante dos métodos: 1) comparando las áreas el desarrollo urbano, entre años 1986 2016, con imágenes Landsat Sentinel (escala 1:250,000), utilizando Q-Gis versión...

10.7818/ecos.1954 article ES cc-by-nc Ecosistemas 2020-12-30

It is a well known fact that Colletotrichum gloeosporioides phytopathogenic fungus affects various crops in all types of climates; it as the causative agent antracnosis. On other hand, has been observed that, unlike species, this one produces glomeruli fatty nature. However, although there are many reports literature regarding fitotoxic metabolites species Colletotrichun, relatively no relevance given to massive production acids using members genus when compared fungi. Based on fact, aim...

10.33885/sf.2013.3.1116 article EN Revista mexicana de micología 2013-01-01

El Centro Nacional para la Información Biotecnológica (NCBI) proporciona acceso a un conjunto de recursos computacionales que permiten el conocimiento sistemas biológicos; además, en éste se incluyen diversos repositorios secuencias genómicas y proteicas, citas resúmenes científicos referentes las ciencias naturales salud. En virtud lo anterior, objetivo este trabajo fue llevar cabo una recopilación generalidades del NCBI, tomando como base organización documento los siguientes elementos:...

10.35196/rfm.2023.1.63 article ES Revista Fitotecnia Mexicana 2023-03-31

Endophytic fungi inhabit plant tissues internally and asymptomatically, many of them are involved in the synthesis bioactive metabolites antifungal therapeutic nature, as well other compounds biotechnological importance including indole derivatives, among others. Ecologically, they provide some benefits to plants protection against phytopathogens promotion root growth. In this sense, Xylaria sp. is a cellulose-decomposing fungus with potential. It worth mentioning that indole-3-acetic acid...

10.1016/j.ram.2023.01.008 article EN cc-by-nc-nd Revista Argentina de Microbiología 2023-04-04

<p><strong>Background:</strong> Damage that causes the drying out of grasses species <em>Pennisetum clandestinum</em> was reported in south Veracruz, which results economic losses livestock sector. <strong>Objective:</strong> To taxonomically identify bug <em>P. clandestinum</em>. <strong>Methodology:</strong> We collected grass bugs across a surface twenty hectares with an entomological net. The insects were placed containers...

10.56369/tsaes.3243 article EN cc-by Tropical and Subtropical Agroecosystems 2020-10-13

<p><strong>Background.</strong> Cultivation of forage grasses is an important component in the dual-purpose cattle production system; however, insect pests can decrease fresh material yields. <strong>Objective. </strong>To taxonomically identify causal agent that damages cultivars <em>Panicum maximum </em>(Jacq.) cv. Mombasa and<em> Panicum </em>cv. Zuri. <strong>Methodology.</strong> In two locations central region Veracruz,...

10.56369/tsaes.4282 article EN cc-by Tropical and Subtropical Agroecosystems 2022-08-15

Asparagus cultivation is highly profitable and appreciated in international gourmet cuisine. In Mexico, the production of this vegetable mainly for export, state Veracruz it has been recently introduced. The objective research was to characterize by morphology, molecular techniques pathogenicity test Fusarium species isolated from symptomatic tissues asparagus shoot. A directed sampling carried out on plants that showed rot, wilting dark brown spots. Fungal isolates were obtained diseased...

10.17268/sci.agropecu.2022.031 article EN Scientia Agropecuaria 2022-12-15
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