A5061293575- Microbial Community Ecology and Physiology
- Gut microbiota and health
- Genomics and Phylogenetic Studies
- Marine and coastal ecosystems
- Paleontology and Stratigraphy of Fossils
- Protist diversity and phylogeny
- Polar Research and Ecology
- Isotope Analysis in Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Coral and Marine Ecosystems Studies
- Methane Hydrates and Related Phenomena
- Bat Biology and Ecology Studies
- Wastewater Treatment and Nitrogen Removal
- Environmental and Cultural Studies in Latin America and Beyond
- Geochemistry and Elemental Analysis
- Zoonotic diseases and public health
- Marine Biology and Ecology Research
- Microbial Fuel Cells and Bioremediation
- Marine and coastal plant biology
- Probiotics and Fermented Foods
- Coastal wetland ecosystem dynamics
- Marine Bivalve and Aquaculture Studies
- Cassava research and cyanide
- Yersinia bacterium, plague, ectoparasites research
- Ocean Acidification Effects and Responses
Universidad Nacional Autónoma de México
2016-2025
Instituto de Ecología
2016-2025
Instituto Tecnológico de Mérida
2019-2023
Tecnológico Nacional de México
2023
Fundar
2023
El Colegio de la Frontera Sur
2019-2023
University of Quintana Roo
2023
Technology and Management Services (Switzerland)
2023
Autonomous University of Yucatán
2020-2022
Lawrence Berkeley National Laboratory
2019
The world's oceans contain a complex mixture of micro-organisms that are for the most part, uncharacterized both genetically and biochemically. We report here metagenomic study marine planktonic microbiota in which surface (mostly marine) water samples were analyzed as part Sorcerer II Global Ocean Sampling expedition. These samples, collected across several-thousand km transect from North Atlantic through Panama Canal ending South Pacific yielded an extensive dataset consisting 7.7 million...
Abstract. Marine N2 fixing microorganisms, termed diazotrophs, are a key functional group in marine pelagic ecosystems. The biological fixation of dinitrogen (N2) to bioavailable nitrogen provides an important new source for ecosystems and influences primary productivity organic matter export the deep ocean. As one series efforts collect biomass rates specific different phytoplankton groups, we have constructed database on diazotrophic organisms global upper ocean by compiling about 12 000...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 346:143-152 (2007) - DOI: https://doi.org/10.3354/meps07008 Nitrogen fixation by symbiotic cyanobacteria provides a source of nitrogen for scleractinian coral Montastraea cavernosa Michael P. Lesser1,*, Luisa I. Falcón2, Aimé Rodríguez-Román3, Susana Enríquez3, Ove Hoegh-Guldberg4, Roberto Iglesias-Prieto3...
ABSTRACT N 2 -fixing proteobacteria (α and γ) unicellular cyanobacteria are common in both the tropical North Atlantic Pacific oceans. In near-surface waters proteobacterial nifH transcripts were present during night day while cyanobacterial nighttime only, suggesting separation of fixation photosynthesis by cyanobacteria. Phylogenetic relationships among from oceans determined after sequencing a conserved region 16S ribosomal DNA (rDNA) cyanobacteria, results showed that they clustered...
Eukaryotic cells are composed of a variety membrane-bound organelles that thought to derive from symbiotic associations involving bacteria, archaea, or other eukaryotes.In addition acquiring the plastid, all Archaeplastida and some their endosymbiotic derivatives can be distinguished organisms by fact they accumulate starch, semicrystalline-storage polysaccharide distantly related glycogen never found elsewhere.We now provide first evidence for existence starch in particular species...
Abstract If you think are in control of your behavior, again. Evidence suggests that behavioral modifications, as development and persistence depression, maybe the consequence a complex network communication between macro micro-organisms capable modifying physiological axis host. Some parasites cause significant nutritional deficiencies for host impair effectiveness cognitive processes such memory, teaching or non-verbal intelligence. Bacterial communities mediate establishment vice versa...
Abstract The karst underground river ecosystem of Yucatan peninsula is composed cave systems and sinkholes. microbial diversity water from this has been studied, but, structure the community in its sediments remained largely unknown. Here we describe how these changes due to different environmental conditions found sediment zones along caves a coastal an inland sinkhole. We that dominant groups varied according type sinkhole (Coastal: Chloroflexi Crenarchaeota; inland: Methylomirabilota...
The Yucatán Peninsula (YP) is home to approximately 60 bat species with differing feeding strategists that, collectively, are fundamental for the health of tropical forests. During SARS-CoV-2 pandemic, biophobic (aversive) responses towards bats were recorded in urban and rural areas YP, making evident need monitor diversity, investigate species’ biology (e.g., microbiome) and, perhaps most importantly, conduct educational activities that foster an affinity bats. We designed a multi-scale...
Antarctic microbial mats, with their significant biodiversity and key role in biogeochemical cycling, were the focus of our study. We employed a metagenomic approach to analyze 14 mats from meltwater streams western Antarctica, covering Maritime, Peninsula, Dry Valleys regions. Our findings revealed that taxonomic compositional level mat communities is characterized by similar bacterial groups, diatoms being main distinguishing factor between rapidly warming Maritime Antarctica other mats....
Diversity of the gut microbiota has proven to be related with host physiology, health and behavior, influencing ecology evolution. Gut microbial community relationships often recapitulate primate phylogeny, suggesting phylosymbiotic associations. Howler monkeys ( Alouatta ) have been a model for study host-gut relationships, showing influence different environmental factors. Differences in life-history traits feeding behavior other atelids, like spider monkeys, may reveal distinct patterns...
ABSTRACT We present data on the genetic diversity and phylogenetic affinities of N 2 -fixing unicellular cyanobacteria in plankton tropical North Atlantic Ocean. Our dinitrogenase gene ( nifH ) sequences grouped together with a group from subtropical Pacific; another Pacific was only distantly related. Most 16S ribosomal DNA our samples were closely allied symbiont diatom Climacodium frauenfeldianum . These findings suggest complex pattern evolutionary ecological divergence among within...
Microbialites have played an important role in the early history of life on Earth. Their fossilized forms represent oldest evidence our planet dating back to 3500 Ma. Extant microbialites been suggested be highly productive and diverse communities with evident cycling major elements, contributing carbonate precipitation. Although their ecological evolutionary importance has recognized, study genetic diversity is yet scanty. The main goal this was analyse microbial living different types...
Microbialites are highly diverse microbial communities that represent modern examples of the oldest life forms, stromatolites (dated >3.7 Ga). Bacalar Lagoon, in Mexico, harbors largest freshwater microbialite occurrences world; yet anthropogenic activities changing oligotrophic conditions lagoon. The objective this work was to perform a spatial exploration microbialites analyze their prokaryote diversity, following high throughput sequencing approach V4 region 16S rDNA, and correlate...
Dissolved organic phosphorus utilization by different members of natural communities has been closely linked to microbial alkaline phosphatases whose affiliation and diversity is largely unknown. Here we assessed genetic bacterial phoX phoD, using highly diverse consortia (microbialites bacterioplankton) as study models. These are found in an oligo-mesotrophic soda lake with a particular geochemistry, exhibiting low calcium concentration high Mg : Ca ratio relative seawater. In spite the...
Microbialites are modern analogues of ancient microbial consortia that date as far back the Archaean Eon. have contributed to geochemical history our planet through their diverse metabolic capacities mediate mineral precipitation. These mineral-forming assemblages accumulate major ions, trace elements and biomass from ambient aquatic environments; role in resulting chemical structure these lithifications needs clarification. We studied biogeochemistry microbialites collected locations Mexico...
Anaerobic digestion of organic residues offers economic benefits via biogas production, still methane (CH4) yield relies on the development a robust microbial consortia for adequate substrate degradation, among other factors. In this study, we monitor production and changes in community composition two semi‐continuous stirred tank reactors during setting process under mesophilic conditions (35°C) using 16S rDNA high‐throughput sequencing method. Reactors were initially inoculated with...
Abstract The objective of this study is to identify and analyze integrons antibiotic resistance genes (ARGs) in samples collected from diverse sites terrestrial Antarctica. Integrons were studied using two independent methods. One involved the construction analysis intI gene amplicon libraries. In addition, we sequenced 17 metagenomes microbial mats soil by high‐throughput sequencing analyzed these data IntegronFinder program. As expected, metagenomic allowed for identification novel...
Mangroves are unique coastal ecosystems, which have many important ecological functions, as they a reservoir of marine species well adapted to saline conditions and fundamental sites carbon storage. Although the microbial contribution nutrient cycling in these ecosystems has been recognized, there is lack information regarding composition structure different types mangrove forests. In this study, we characterized community (Bacteria Archaea) sediments associated with five forests lagoon...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 285:3-9 (2005) - doi:10.3354/meps285003 Growth kinetics of marine unicellular N2-fixing cyanobacterial isolates in continuous culture relation phosphorus and temperature Luisa I. Falcón1,2,*, Sybille Pluvinage1, Edward J. Carpenter1 1Romberg Tiburon Center for Environmental Studies, San Francisco State...
Abstract. Marine N2 fixing microorganisms, termed diazotrophs, are a key functional group in marine pelagic ecosystems. The biological fixation of dinitrogen (N2) to bioavailable nitrogen provides an important new source for ecosystems and influences primary productivity organic matter export the deep ocean. As one series efforts collect biomass rates specific different phytoplankton groups, we have constructed database on diazotrophic organisms global upper ocean by compiling about 12 000...