A5020691718- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Aquatic Ecosystems and Phytoplankton Dynamics
- Polar Research and Ecology
- Protist diversity and phylogeny
- Geology and Paleoclimatology Research
- Genomics and Phylogenetic Studies
- Fish Ecology and Management Studies
- Marine Biology and Ecology Research
- Aquatic Invertebrate Ecology and Behavior
- Coastal wetland ecosystem dynamics
- Economic theories and models
- Freshwater macroinvertebrate diversity and ecology
- Hydrology and Watershed Management Studies
- Geophysics and Gravity Measurements
- Soil erosion and sediment transport
- Game Theory and Voting Systems
- Coastal and Marine Management
- Economic Theory and Institutions
- Biocrusts and Microbial Ecology
- Species Distribution and Climate Change
- Flood Risk Assessment and Management
- Decision-Making and Behavioral Economics
- Business Strategy and Innovation
- Peatlands and Wetlands Ecology
Universitat de València
2016-2025
Parc Científic de la Universitat de València
2015-2024
Institute for Biodiversity
2021-2023
Tour du Valat
2022
University of Florida
2022
Institut de Biologia Evolutiva
2012-2022
Universidad de Playa Ancha de Ciencias de la Educación
2020
Pacific Biosciences (United States)
2014
University of Hawaiʻi at Mānoa
2014
University of Hawaii System
2014
We describe a deep-branching lineage of marine Actinobacteria with very low GC content (33%) and the smallest free living cells described yet (cell volume ca. 0.013 μm3), even smaller than cosmopolitan photoheterotroph, ‘Candidatus Pelagibacter ubique’. These microbes are highly related to 16S rRNA sequences retrieved by PCR from Pacific Atlantic oceans 20 years ago. Metagenomic fosmids allowed virtual genome reconstruction that also indicated small genomes below 1 Mb. A new kind rhodopsin...
Abstract Acreman et al. (Wetlands 42:63, 2022) reviewed evidence for ecological damage to the Doñana wetlands (UNESCO World Heritage Site [WHS] and Ramsar site), Spain, associated with intensification of groundwater use, particularly agriculture. presented a multistep methodology evidence-based risk assessment that involves identification conservation issues, systematic review scientific its causes. However, they involved few local scientists, used questionable in stakeholder selection...
The increasing availability of gene sequences prokaryotic species in samples extracted from all kind locations allows addressing the study influence environmental patterns biodiversity. We present a comprehensive to address potential existence preferences taxa and commonness specialist generalist strategies. also assessed most significant factors shaping distribution taxa. used 16S rDNA 3,502 sampling experiments natural artificial sources. These were taxonomically assigned, corresponding...
Abstract Freshwater ecosystems are critical but fragile environments directly affecting society and its welfare. However, our understanding of genuinely freshwater microbial communities, constrained by capacity to manipulate prokaryotic participants in axenic cultures, remains very rudimentary. Even the most abundant components, Actinobacteria, remain largely unknown. Here, applying deep metagenomic sequencing community a reservoir, we were able circumvent this traditional bottleneck...
Remote lakes are usually unaffected by direct human influence, yet they receive inputs of atmospheric pollutants, dust, and other aerosols, both inorganic organic. In remote, alpine lakes, these may influence the pool dissolved organic matter, a critical constituent for biogeochemical functioning aquatic ecosystems. Here, to assess this we evaluate factors related aerosol deposition, climate, catchment properties, microbial constituents in global dataset 86 polar lakes. We show significant...
The photic zone of aquatic habitats is subjected to strong physicochemical gradients. To analyze the fine-scale variations in marine microbiome, we collected seven samples from a single offshore location Mediterranean at 15 m depth intervals during period stratification, as well two more winter when water column was mixed. We were able recover 94 new metagenome-assembled genomes (MAGs) these metagenomes and examine distribution key microbes within using metagenomic recruitment.Our results...
Fourteen strains, all isolated from the surface of freshwater habitats, were genomically, phylogenetically and phenotypically characterized. The strains obtained geographically climatically broadly scattered sites. This included two lakes in Antarctica, one arctic pond located on Svalbard archipelago (Norway), a tropical habitat Uganda, some Southern Europe (Spain France), lakes, ponds puddle Central (Austria, Czech Republic Germany), Northern (Finland). Most investigated characterized by...
Gemmatimonadota is a diverse bacterial phylum commonly found in environments such as soils, rhizospheres, fresh waters, and sediments. So far, the contains just six cultured species (five of them sequenced), which limits our understanding their diversity metabolism. Therefore, we analyzed over 400 metagenome-assembled genomes (MAGs) 5 culture-derived representing from various aquatic environments, hydrothermal vents, sediments, host-associated (with marine sponges coral) species. The...
Coastal lagoons, both hypersaline and freshwater, are common, but still understudied ecosystems. We describe, for the first time, using high throughput sequencing, extant microbiota of two large representative Mediterranean coastal Mar Menor freshwater Albufera de Valencia, located on south eastern coast Spain. show there considerable differences in comparison to other marine habitats. Importantly, a novel uncultured sulfur oxidizing Alphaproteobacteria was found dominate bacterioplankton...
The phylum Verrucomicrobia contains freshwater representatives which remain poorly studied at the genomic, taxonomic, and ecological levels. In this work we present eighteen new reconstructed verrucomicrobial genomes from two reservoirs located close to each other (Tous Amadorio, Spain). These metagenome-assembled (MAGs) display a remarkable taxonomic diversity inside comprise wide ranges of estimated genome sizes (from 1.8 6 Mb). Among all found some smallest Spartobacteria Opitutae classes...
Precambrian Banded Iron Formation (BIF) deposition was conventionally attributed to the precipitation of iron-oxides resulting from abiotic reaction ferrous iron (Fe(II)) with photosynthetically-produced oxygen. Earliest traces oxygen date 2.7 Ga, thus raising questions as what may have caused BIF before oxygenic photosynthesis evolved. The discovery anoxygenic phototrophic bacteria thriving through oxidation Fe(II) has provided support for a biological origin some BIFs, but despite reports...
Freshwater picocyanobacteria including Synechococcus remain poorly studied at the genomic level, compared to their marine representatives. Here, using a metagenomic assembly approach we discovered two novel sp. genomes from freshwater reservoirs Tous and Lake Lanier, both sharing 96% average nucleotide identity displaying high abundance levels in these lakes located similar altitudes temperate latitudes. These new have smallest estimated size (2.2 Mb) intergenic spacer length (20 bp) of any...
Rivers and streams contribute to global carbon cycling by decomposing immense quantities of terrestrial plant matter. However, decomposition rates are highly variable large-scale patterns drivers this process remain poorly understood. Using a cellulose-based assay reflect the primary constituent detritus, we generated predictive model (81% variance explained) for cellulose across 514 globally distributed streams. A large number variables were important predicting decomposition, highlighting...
WHAT IS A "DEEP CHLOROPHYLL MAXIMUM" (DCM)?During the lakes' stratification period, planktonic primary producers, such as some eukaryotic algae and cyanobacteria, can achieve abundance maxima at considerable depths, especially in oligotrophic mesotrophic lakes (Fee, 1976;Moll Stoermer, 1982;Margalef, 1983).However, during mixing period these would not occur because turbulence mixes water preventing accumulation of phototrophs certain depths (Reynolds, 1994), it happens when fall occurs...
Remote sensing techniques can be used to estimate water quality variables such as chlorophyll\mbi a, total suspended particles, and transparency. This paper describes empirical algorithms for the estimation of these using Landsat Thematic Mapper (TM) data. Ground data were taken from several Spanish lakes covering a variety trophic statuses, ranging oligotrophic hypereutrophic. The studied Albufera de Valencia ponds Southeast Regional Park in Madrid. Empirical equations obtained ratio...
The global biogeography of microorganisms remains poorly resolved, which limits the current understanding microbial resilience towards environmental changes. Using high-throughput 16S rRNA gene amplicon sequencing, we characterized diversity terrestrial and lacustrine biofilms from Arctic, Antarctic temperate regions. Our analyses suggest that bacterial community compositions at poles are more similar to each other than they geographically closer habitats, with 32 % all operational taxonomic...
The main soil physical-chemical features, the concentrations of a set pollutants, and microbiota linked to penguin rookeries have been studied in 10 selected sites located at South Shetland Islands Antarctic Peninsula (Maritime Antarctica). This study aims test hypothesis that biotransport by penguins increases concentration especially heavy metals, soils, alters its microbiota. Our results show do transport certain chemical elements thus cause accumulation land areas through their excreta....
RuBisCO (ribulose 1,5-bisphosphate carboxylase/oxygenase) is one the most abundant enzymes on Earth. Virtually all food webs depend its activity to supply fixed carbon. In aerobic environments, struggles distinguish efficiently between CO2 and O2. To compensate, organisms have evolved convergent solutions concentrate around active site. The genetic engineering of such inorganic carbon concentrating mechanisms (CCMs) into plants could help facilitate future global security for humankind....
Abstract Background Cyanobacteria are the major prokaryotic primary producers occupying a range of aquatic habitats worldwide that differ in levels salinity, making them group interest to study one unresolved conundrums microbiology which is what distinguishes marine microbe from freshwater one? We address this question using ecogenomics picocyanobacteria (cluster 5) have recently evolved inhabit geographically disparate salinity niches. Our analysis made possible by sequencing 58 new...
The community structure and physiological characteristics of three microbial mat communities in Byers Peninsula (Livingston Island, South Shetland Islands, Antarctica) were compared. One the mats was located at edge a stream dominated by diatoms (with thin basal layer oscillatorian cyanobacteria), whereas other two mats, over moist soil bottom pond, respectively, cyanobacteria throughout their vertical profiles. predominant xanthophyll fucoxanthin myxoxanthophyll cyanobacteria-dominated...