A5082805880- Environmental Toxicology and Ecotoxicology
- Toxic Organic Pollutants Impact
- Heavy metals in environment
- Mercury impact and mitigation studies
- Plant Stress Responses and Tolerance
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine Bivalve and Aquaculture Studies
- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Photosynthetic Processes and Mechanisms
- Pharmacogenetics and Drug Metabolism
- Marine and coastal plant biology
- Glutathione Transferases and Polymorphisms
- Plant responses to elevated CO2
- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Plant Micronutrient Interactions and Effects
- Carcinogens and Genotoxicity Assessment
- Plant Gene Expression Analysis
- Eicosanoids and Hypertension Pharmacology
- Analytical chemistry methods development
- Parasite Biology and Host Interactions
- Knee injuries and reconstruction techniques
- Microplastics and Plastic Pollution
- Aquaculture disease management and microbiota
Center for Research and Advanced Studies of the National Polytechnic Institute
2009-2021
Universidad Autónoma de Baja California
2021
Universidad Nacional Autónoma de México
2021
Texas A&M University
2021
Instituto Politécnico Nacional
2009-2019
Instituto de Estudios Avanzados
2019
Universidad Marista de Mérida
2017-2018
Instituto Tecnológico de Mérida
1998-2007
RNA extraction from mangrove tissues can be difficult due to the presence of polyphenolic and polysaccharide compounds upon cell disruption.Besides, a successful isolation sometimes strain species specific.Two different methods were used extract (stems, leaves roots) black (Avicennia germinans) white (Laguncularia racemosa), collected area at Progreso, Yucatan, Mexico.An optimized modified total method was developed for these recalcitrant species.The protocol is based on CTAB including...
We assessed metrics of the metazoan parasite infracommunities dusky flounder (Syacium papillosum) as indicators aquatic environmental health Yucatan Shelf (YS) prior to oil extraction. sampled and its parasites along YS, mostly during 2015 north wind season (November–April). Our aims were: (i) determine whether infracommunity S. papillosum exhibit significant differences among YS subregions; (ii) probability occurrence species individuals were affected by variables, nutrients, heavy metals...
The effects of copper toxicity on the photosynthetic activities Avicennia germinans was investigated using two CuSO4 concentrations (0.062 and 0.33 M) added in Hoagland's solution an aerated hydroponic system. Photosynthesis chlorophyll fluorescence were measured after 30 h stress. Results obtained this study show that increasing levels Cu+2 0.062 M resulted a general reduction stomatal conductance (28 18%, respectively) 100% inhibition net photosynthesis. Additionally, at these Cu+2,...
The Yucatán Peninsula in Mexico contains some of the largest breeding groups globally distributed and critically endangered hawksbill turtle (Eretmochelys imbricata). An improved understanding system this species how its genetic variation is structured among nesting areas required before threats to survival can be properly evaluated. Here, we genotype 1195 hatchlings 41 females at 12 microsatellite loci assess levels multiple paternity, whether individual homozygosity are associated with...
Exposure to contaminants might directly affect organisms and alter their associated microbiota. The objective of the present study was determine impact petroleum-water-accommodated fraction (WAF) from a light crude oil (API gravity 35) on benthic fish species native Gulf Mexico (GoM). Ten adults Achirus lineatus (Linnaeus, 1758) were exposed sublethal WAF/water solution 50% v/v for 48 hr. Multiple endpoints measured including tissue damage, presence polycyclic aromatic hydrocarbons (PAHs)...
Isolation of high-quality RNA Avicennia germinans L. tissue is difficult due to high levels phenols and other substances that interfere when using conventional procedures for the isolation. These not only decrease yield but also quality almost poor. We present here a simple protocol fast methodology effectively removes these contaminating without affecting yield. The developed based on SDS/phenol method with modifications including β-mercaptoethanol prevent oxidation phenolic complexes,...
The effect of heavy metal stress on the cell viability and leakage electrolytes Avicennia germinans leaf discs was investigated by tissue tolerance test. Foliar were incubated with different Cd 2+ or Cu concentrations for 24 h; thereafter, membrane stability assayed Evans blue methods. results indicated that electrolyte increased h after exposure to stress, as shown a reduction 30% in exposed higher doses (0.546 M) (0.7 M), respectively. Additionally, histological analysis revealed at and/or...
Abstract The toxic effects of cadmium on the photosynthetic apparatus Avicennia germinans were evaluated by means chlorophyll fluorescence transient O-J-I-P. transients recorded in vivo with high time resolution and analyzed according to OJIP-test that can quantify performance photosystem II. Cadmium-treated plants showed a decrease yield for primary photochemistry, TR 0 /ABS. index II (PSII), PI ABS , decreased due treatment. This is combination indexes three independent parameters: (1)...