A5045156012- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Environmental DNA in Biodiversity Studies
- Marine and coastal ecosystems
- Genomics and Phylogenetic Studies
- Ichthyology and Marine Biology
- Marine Biology and Ecology Research
- Fish Biology and Ecology Studies
- Vibrio bacteria research studies
- Evolution and Genetic Dynamics
- Fish Ecology and Management Studies
- Marine and fisheries research
- Geotechnical Engineering and Underground Structures
- Ecology and Vegetation Dynamics Studies
- Insect symbiosis and bacterial influences
- Geotechnical Engineering and Soil Stabilization
- Fish biology, ecology, and behavior
- RNA modifications and cancer
- Bacteriophages and microbial interactions
- Identification and Quantification in Food
- Species Distribution and Climate Change
- RNA and protein synthesis mechanisms
- Heavy metals in environment
- Coral and Marine Ecosystems Studies
- Fisheries and Aquaculture Studies
Institute of Hydrobiology, Biology Centre, Academy of Sciences of the Czech Republic
2020-2024
Czech Academy of Sciences
2020-2024
Aliah University
2024
Czech Academy of Sciences, Biology Centre
2020-2024
Indian Institute of Integrative Medicine
2022
Academy of Scientific and Innovative Research
2022
Kyoto University
2015-2019
National Institute of Oceanography
2014
Abstract Background The phytoplankton spring bloom in freshwater habitats is a complex, recurring, and dynamic ecological spectacle that unfolds at multiple biological scales. Although enormous taxonomic shifts microbial assemblages during after the have been reported, genomic information on community of remains scarce. Results We performed high-resolution spatio-temporal sampling reservoir describe multitude previously unknown taxa using metagenome-assembled genomes eukaryotes, prokaryotes,...
Functional diversity is a component of biodiversity that generally covers the range functional traits microorganisms prevailing in an ecosystem. high ecological importance because it capable influencing several aspects ecosystem functioning like dynamics, stability, nutrient availability, etc. community can be measured by richness and evenness. refers to number species inhabiting particular niche evenness reveals how evenly are being distributed. Increase or decrease simultaneously increases...
In aquatic microbial food webs, ciliates represent an important trophic link in the energy transfer from prokaryotes, algae, and heterotrophic nanoflagellates (HNF) to higher levels. However, role of abundant small (< 20 µm) is not clearly understood. To unveil their linkages, we conducted two experiments manipulating both top-down bottom-up controlling factors, thus modulating cascading bacterial prey availability for protists during contrasting spring summer seasons with samples...
This study uses 115 years’ gridded rainfall data from 121 gauge stations to observe long-term changes in annual and seasonal the entire West Bengal, India. The significance amplitude of these overall trends are assessed with use such for period 1901 2015 collected India Meteorological Department, by applying innovative trend analysis. According findings study, area decreases significantly during winter season pre-monsoon season, while increases monsoon post-monsoon season. experiences...
Kinetoplastid flagellates, microscopically often detected from various aquatic environments and considered ubiquitous are seldom reported in molecular diversity studies with universal eukaryote DNA primers. To investigate this inconsistency, we examined nanoflagellate Lake Biwa, Japan by 18S rRNA gene clone libraries using kinetoplastid-specific We also the abundance of kinetoplastids Catalyzed Reporter Deposition–Fluorescence In Situ Hybridization. No, kinetoplastid sequences were primers...
Abstract Background Planktonic microbial communities have critical impacts on the pelagic food web and water quality status in freshwater ecosystems, yet no general model of bacterial community assembly linked to higher trophic levels hydrodynamics has been assessed. In this study, we utilized a 2-year survey planktonic from bacteria zooplankton three reservoirs investigate their spatiotemporal dynamics. Results We observed site-specific occurrence microdiversification lacustrine riverine...
Kinetoplastid flagellates are generally abundant in the deep sea and recently they were even found to be dominant hypolimnion of a freshwater lake. Therefore, understand distribution kinetoplastids lakes, we have collected vertical samples from five lakes Japan. The abundance was enumerated by Catalyzed Reporter Deposition-Fluorescence situ Hybridization, diversity determined 18S amplicon sequencing using universal eukaryote kinetoplastid-specific primers. Kinetoplastids waters all...
Diplonemids are considered marine protists and have been reported among the most abundant diverse eukaryotes in world oceans. Recently we detected presence of freshwater diplonemids Japanese deep lakes. However, their distribution abundances ecosystems remain unknown. We assessed abundance diversity from several geographically distant lakes by amplicon-sequencing, shotgun metagenomics catalysed reporter deposition-fluorescent situ hybridization (CARD-FISH). found all studied lakes, albeit...
Heterotrophic nanoflagellates (HNF) are considered as major planktonic bacterivores, however, larger HNF taxa can also be important predators of eukaryotes. To examine this trophic cascading, natural protistan communities from a freshwater reservoir were released grazing pressure by zooplankton via filtration through 10- and 5-µm filters, yielding microbial food webs different complexity. Protistan growth was stimulated amendments five Limnohabitans strains, thus prey-specific treatments...
Abstract Morphology-based microscopic approaches are insufficient for a taxonomic classification of bacterivorous heterotrophic nanoflagellates (HNF) in aquatic environments since their cells do not display reliably distinguishable morphological features. This leads to considerable lack ecological insights into this large and taxonomically diverse functional guild. Here, we present combination fluorescence situ hybridization followed by catalyzed reporter deposition (CARD-FISH) environmental...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 80:123-137 (2017) - DOI: https://doi.org/10.3354/ame01843 Seasonal dynamics of heterotrophic and plastidic protists in water column Lake Biwa, Japan Indranil Mukherjee, Yoshikuni Hodoki, Shin-ichi Nakano* Center for Ecological Research, Kyoto University, Hirano 2-509-3, Otsu, Shiga 520-2113, *Corresponding author:...
Heterotrophic nanoflagellates (HNF) and ciliates are major protistan planktonic bacterivores. The term HNF, however, describes a functional guild only and, in contrast to the morphologically distinguishable ciliates, does not reflect phylogenetic diversity of flagellates aquatic ecosystems. Associating function with taxonomic affiliation key flagellate taxa is currently task microbial ecology. We investigated seasonal changes HNF ciliate community composition as well taxa-specific...
Abstract Background Protists are essential contributors to eukaryotic diversity and exert profound influence on carbon fluxes energy transfer in freshwaters. Despite their significance, there is a notable gap research protistan dynamics, particularly the deeper strata of temperate lakes. This study aimed address this by integrating protists into well-described spring dynamics Římov reservoir, Czech Republic. Over 2-month period covering transition from mixing established stratification, we...
Abstract Ancient bacteria largely lived and flourished as free-living cells till the rise of eukaryotes triggered their adaptation to a new habitat: intracellular milieu. Rickettsiales are most prevalent microorganisms discovered culprits behind some mankind’s worst pestilential diseases. Here, we show that intracellularity is not defining feature group describe eco-evolutionary processes transformed harmless into obligate symbionts parasites. We found evolution lineages towards enhanced...
Aim: The aim of the present study was to understand molecular relationship between nematode (parasite) and fish (host) through codon usage bias (CUB) analysis. Methodology: Codon analysis has been performed in Carassius gibelio (Prussian carp) parasite Anisakis simplex. complete coding sequences (CDS) C. A. simplex (Nematode) were retrieved from National Center for Biotechnology Information followed that we have bioinformatics pattern host parasite. Results: Different CUB indices like...
Dhapa, the landfill situated in Kolkata, is a very active site for municipal dumping. A humongous amount of solid waste added this dump daily and nearby farmlands produce significant yield local population. The current study seeks to examine environmental associated with leachate migration due open dumping unsorted India. Also, second goal assess risk public health consumption agricultural products possibly contaminated heavy metals through soil groundwater. seasonal groundwater sample,...
Background Protists are essential contributors to eukaryotic diversity and exert profound influence on carbon fluxes energy transfer in freshwaters. Despite their significance, there is a notable gap research protistan dynamics, particularly the deeper strata of temperate lakes. This study aimed address this by integrating protists into well-described spring dynamics Rimov reservoir, Czech Republic. Over two-month period covering transition from mixing established stratification, we...
Abstract Diplonemids are considered marine protists and have been reported among the most abundant diverse eukaryotes in world oceans. Recently we detected presence of freshwater diplonemids Lake Biwa, Japan. However, their distribution abundances ecosystems remain unknown. We assessed abundance diversity from several geographically distant deep lakes by amplicon-sequencing, shotgun metagenomics CARD-FISH. found all studied lakes, albeit with low diversity. assembled long 18S rRNA sequences...