A5030318428- Seed Germination and Physiology
- Ecology and Vegetation Dynamics Studies
- Plant tissue culture and regeneration
- Plant Water Relations and Carbon Dynamics
- Botanical Research and Applications
- Botany, Ecology, and Taxonomy Studies
- Metal Extraction and Bioleaching
- Plant Parasitism and Resistance
- Microbial Community Ecology and Physiology
- Plant Diversity and Evolution
- Genomics and Phylogenetic Studies
- Growth and nutrition in plants
- Allelopathy and phytotoxic interactions
- Nitric Oxide and Endothelin Effects
- Seedling growth and survival studies
- Rangeland and Wildlife Management
- Plant Molecular Biology Research
- Botany and Plant Ecology Studies
- Plant Genetic and Mutation Studies
- Glaucoma and retinal disorders
- Tree-ring climate responses
- Plant and animal studies
- Agroforestry and silvopastoral systems
- Fern and Epiphyte Biology
- Soybean genetics and cultivation
University of Oklahoma Health Sciences Center
2023-2024
Universidad Nacional Autónoma de México
2011-2023
Universidad Autónoma Monterrey
2023
Oklahoma State University
2021
Instituto de Ecología
2011-2015
Universidad Autónoma de la Ciudad de México
2013
Understanding how plants survive drought and cold is increasingly important as worldwide experience dieback with in moist places grow taller warming ones. Crucial plant climate adaptation are the diameters of water-transporting conduits. Sampling 537 species across zones dominated by angiosperms, we find that size unambiguously main driver conduit diameter variation. And because have wider conduits, conduits within more vulnerable to conduction-blocking embolisms, conspecifics should be than...
Summary We report on the genomic characterization of three novel classes in phylum Desulfobacterota. One class (proposed name Candidatus ‘Anaeroferrophillalia’) was characterized by heterotrophic growth capacity, either fermentatively or utilizing polysulfide, tetrathionate thiosulfate as electron acceptors. In absence organic carbon sources, autotrophic via Wood–Ljungdahl (WL) pathway and using hydrogen Fe(II) an donor is also inferred for members ‘Anaeroferrophillalia’. The second...
The size and composition of seed reserves may reflect the ecological strategy evolutionary history a species also temporal variation in resource availability. mass 19 co-existing tree were studied, we examined how they varied among relation to germination seedling growth rates, as well between two years with contrasting precipitation (652 384 mm). Seeds collected from tropical deciduous forest northwest Mexico (Chamela Biological Station). dry mass, without coat, concentrations lipids,...
DUF642 proteins constitute a highly conserved family of that are associated with the cell wall and specific to spermatophytes. Transcriptome studies have suggested members this involved in seed development germination processes. Previous vitro revealed At4g32460- At5g11420-encoded interact catalytic domain pectin methyl esterase 3 (AtPME3, which is encoded by At3g14310). PMEs play an important role plant development, including germination. The aim study was evaluate function gene At4g32460...
Abstract Plant hydraulic traits are essential metrics for characterizing variation in plant function, but they vary markedly with size and position a plant. We explore the potential effect of conduit widening on along stem. examined three species that differ diameter at stem base given height (Moringa oleifera, Casimiroa edulis, Pinus ayacahuite). made anatomical measurements different distances from tip, constructed vulnerability curves, safety–efficiency trade-off height-standardized data....
As trees grow taller, hydraulic resistance can be expected to increase, causing photosynthetic productivity decline. Yet leaves maintain over vast height increases; this maintenance of suggests that leaf-specific conductance remains constant as taller. Here we test the assumption with growth and document stem xylem anatomical adjustments involved. We measured scaling total leaf area, mean vessel diameter at terminal twigs base, number in 139 individuals Moringa oleifera different heights,...
Abstract Ecological restoration of disturbed areas requires substantial knowledge the germination native plants and creation novel methods to increase seedling establishment in field. We studied effects soil matrix priming on Dodonaea viscosa seeds, which exhibit physical dormancy. To this end, we buried both pre‐scarified (in H 2 SO 4 , 3 min) non‐pre‐scarified seeds Parque Ecológico de la Ciudad México. After were unearthed, they post‐scarified for 0, 2, 6 10 min their percentages compared...
Abstract Seeds constitute a key physiological stage in plants life cycle. During seed germination, there is spatial-temporal imbibition pattern that correlates with described processes. However, only the moment of testa rupture has been as critical, discrete stage. Could specific relative water content (RWC) value reflect useful for comparisons between batches? We tracked seed-by-seed during germination to homogenize sampling and selected transcriptomic approach analyse transitions occur...
Nitrogen is a component of many seed reserve compounds, which play remarkable role during germination and have great value for predators. A predefined coefficient factor used to determine the protein concentration from nitrogen concentration. However, this calculation may not reflect variety compounds present in seeds their ecological role. Understanding how content distributed between amino acids proteins will help explain are involved metabolism. We studied heat-stable total acid...
Nitric oxide (NO) is recognized as an important biological mediator that controls several physiological functions, and evidence now emerging this molecule may play a significant role in the postnatal control of ocular growth myopia development. We therefore sought to understand nitric plays visually-guided order gain insight into underlying mechanisms process. Choroids were incubated organ culture presence NO donor, PAPA- NONOate (1.5 mM). Following RNA extraction, bulk RNA-seq was used...
To design conservation and management strategies for sub-tropical moist forests, it is important to know how storage affects the longevity germination of desiccation-sensitive seeds. These variables are controlled by a physiological process that mainly associated with seeds’ moisture content reserve content, which can be significantly affected environmental conditions. The objectives this study were: (i) evaluate relationship between sensitive non-sensitive desiccation seeds (ii), describe...
Abstract An overwhelming majority of bacterial life remains uncharacterized. Recent efforts to assemble genomes from metagenomes have provided invaluable insights into these yet-uncultured lineages. We report on the characterization 30 belonging three novel classes within phylum Desulfobacterota. One class (proposed name Candidatus “Anaeroferrophillalia”) was characterized by capacity for heterotrophic growth, either fermentatively or utilizing polysulfide, tetrathionate and thiosulfate as...
Background: In crop plants, the induction of seed storage protein mobilization and synthesis LEA family proteins has been extensively described.Question: Natural priming promotes in wild plants?Species studied: Buddleja cordata Opuntia tomentosa. Study site: Reserva Ecológica del Pedregal de San Angel (REPSA).Methods: treatments were applied to B. O. tomentosa seeds during one six months respectively. Phosphorylated fractions obtained by affinity chromatography from control treated seeds....
Abstract Agave is one of the most important genera plants in Mexico terms biodiversity and cultural economic impact; however, its reproductive traits breeding systems are poorly known. In addition, clonal propagation agave cultures interruption sexual reproduction may lead to differences not only but also seed set viability across species between wild landraces. Hence this research evaluated morphological variation flowers, fruits, seeds throughout infructescence development pulquero...
ABSTRACT Purpose Nitric oxide (NO) is recognized as an important biological mediator that controls several physiological functions, and evidence now emerging this molecule may play a significant role in the postnatal control of ocular growth myopia development. We therefore sought to understand nitric plays visually-guided order gain insight into underlying mechanisms process. Methods Choroids were incubated organ culture presence NO donor, PAPA-NONOate (1.5 mM). Following RNA extraction,...
Different taxa of the mountain cloud forest have migrated along geographic elevational gradient during past climate change (CC) events. However, accelerated is modifying temperature and precipitation patterns in unprecedented ways. In this context, assisted plant migration from seeds a management strategy that assesses ability new individuals to establish themselves suitable areas an environmental gradient. The emergence early establishment seedlings are strongly affected by abiotic...