Renaming ‘Chemosensory’ Proteins (CSPs): Lipid/Nucleotide-Binding Proteins — Molecular Nomenclature, Structure, Expression, Function, Evolutionary Networks, Clinical Diseases and Associated Molecular Medicine DOI Open Access
Ao Liu,

Botong Sun,

Wei Fan

и другие.

Опубликована: Дек. 27, 2023

This is a brief critique of the functions—particularly olfactory functions—specified for “Chemosensory Protein” (CSPs) molecule family. On basis these proteins’ presence in sensory antennal lymph locusts, odor chemosensory ligand binding functions have been hypothesized. According to this hypothesis, entire protein superfamily referred as “CSPs”. However, new information and developments field CSP molecular research, such expression genes gut, brain, fat body, epidermis, pheromone gland, well gene profiling from most early developmental stages—that is, advance appearance chemical sense nerve cells—strongly suggest that has other roles are unrelated chemosensing. Moreover, CSPs found bacterial microbial prokaryote organisms addition insects. Thus, we examine molecule’s name, definition, RNA editing, structure, lipid properties, DNA interaction, evolutionary characteristics before referring family Proteins”. article tries compel discuss recent way rename Because its highly conserved distinctive feature (four adjacent cysteines), propose renaming “CSPs” “4CSPs” (4 Cysteines Soluble Proteins).

Язык: Английский

Climate-driven succession in marine microbiome biodiversity and biogeochemical function DOI Creative Commons
Alyse A. Larkin, Melissa L. Brock, Adam J. Fagan

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Авг. 16, 2024

Abstract Seasonal and El Niño-Southern Oscillation (ENSO) warming result in similar ocean changes as predicted with climate change. Climate-driven environmental cycles have strong impacts on microbiome diversity, but function are poorly understood. We quantified microbial genomic diversity functioning over 11 years covering seasonal ENSO at a coastal site the southern California Current. observed oscillations between large genome lineages during cold, nutrient rich conditions winter spring versus small lineages, including Prochlorococcus Pelagibacter, summer fall. Parallel interannual separated communities depending condition. Biodiversity shifts translated into clear functional potential. Ocean induced an ecosystem less iron more macronutrient stress genes, depressed organic carbon degradation potential biomass, elevated carbon-to-nutrient biomass ratios. The consistent response across time-scales points towards climate-driven marine ecosystems biogeochemical cycles.

Язык: Английский

Процитировано

1
Temporal dynamics of alpha and beta diversity of lake algae: Opposing patterns and influencing factors over the past 200 years DOI
瑞昌 马, Janne Soininen, Aifeng Zhou

и другие.

Freshwater Biology, Год журнала: 2024, Номер 69(12), С. 1885 - 1898

Опубликована: Окт. 7, 2024

Abstract Better understanding of the responses algal biodiversity to multiple pressures, such as climate warming and eutrophication, is a key issue in aquatic ecology. Alpha beta diversity may have various patterns over temporal scales, especially Anthropocene, when external pressures became more multifaceted. However, limited availability historical data hampers exploration through time. Recently, sediment DNA has emerged potential tool for elucidating communities. Here, we used reconstruct turnover communities four remote lakes northern China past 200 years. Furthermore, distinguish contributions possible influencing environmental factors, conducted structural equation modelling. Our results revealed that experienced rapid shifts since characterized by increased alpha decreased diversity. Warmer eutrophication were associated with changes diversity, while variation was This study opposing communities, possibly caused warming, lower variation, respectively. While climatic factors played major role natural environment, are human impacted be structured nutrient‐related factors. Under intensified activities, encounter complex near future. findings offer valuable insights into underlying pressures.

Язык: Английский

Процитировано

1
Limnospira(Cyanobacteria) chemical fingerprint reveals local molecular adaptation DOI Creative Commons

Théotime Roussel,

Cédric Hubas, Sébastien Halary

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Апрель 22, 2024

Abstract Limnospira can colonize a wide variety of environments ( e.g., freshwater, brackish, alkaline or alkaline-saline water) and develop dominant even permanent blooms that limit over-shadowed adjacent phototrophs diversity, especially in saline environments. Previous phylogenomic analysis allowed us to distinguish two major phylogenetic clades (I II) but failed clearly segregate strains according their respective habitats terms salinity biogeography. In the present work, we attempt determine whether displays metabolic signatures specific its different habitats, particularly brackish ecosystems, question impact accessory gene repertoires on chemical adaptations. The study metabolomic diversity 93 from Paris Museum Collection, grown under standardized lab culture conditions, showed distinct fingerprints were correlated with biogeographic origins strains. molecules most geographic groups are sugars, lipids, peptides, photosynthetic pigments, antioxidant molecules. Interestingly, these molecule enrichments might represent adaptation traits local conditions encountered sampling concerning salinity, light oxidative stress. We hypothesize within extreme environments, such as those colonized by , large set flexible genes provide remarkable environmental light, pressure). Thus, occurrence population genomes potentially involved production certain metabolites may valuable adaptative support bloom persistence beyond condition variations. Importance ubiquitous cyanobacteria able dominate range around world strategies. Phylogenomic platensis following One presume found this variable portion genome could be L. conditions. paper, alkalinesaline repertoire adaptation.

Язык: Английский

Процитировано

0
Simultaneous acclimation to nitrogen and iron scarcity in open ocean cyanobacteria revealed by sparse tensor decomposition of metatranscriptomes DOI
Stephen Blaskowski, Marie Roald, Paul M. Berube

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Июль 18, 2024

Microbes respond to changes in their environment by adapting physiology through coordinated adjustments the expression levels of functionally related genes. To detect these shifts situ, we developed a sparse tensor decomposition method that derives gene co-expression patterns from inherently complex whole community RNA-sequencing data. Application metatranscriptomes abundant marine cyanobacteria Prochlorococcus and Synechococcus identified responses scarcity two essential nutrients, nitrogen iron, including increased transporter expression, restructured photosynthesis carbon metabolism, mitigation oxidative stress. Further, profiles clusters suggest both populations experience simultaneous iron stresses transition zone between North Pacific oceanic gyres. The results demonstrate power our approach infer organism environmental pressures, hypothesize functions uncharacterized genes, extrapolate ramifications for biogeochemical cycles changing ecosystem. Teaser New analytical reveals may help cope with stressors.

Язык: Английский

Процитировано

0
Bacterial metabolic remodelling by convergent evolution in response to host niche-dependent nutrient availability DOI
Amy C. Pickering, Jamie Gorzynski,

Grace Taylor-Joyce

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Сен. 4, 2024

Abstract New pathogens often arise after host jump events between species. However, our understanding of how bacterial pivot to distinct nutrient availabilities in a new niche is limited. Staphylococcus aureus multi-host pathogen responsible for global burden disease humans and farmed animals. Multiple human-to-bovine switching led the emergence S. as leading cause intramammary infection dairy cattle. Here, we employed ex vivo milk infections investigate bovine has adapted revealing metabolic remodelling including upregulation genes lactose utilisation branched-chain amino acid biosynthesis response availability. Notably, by results clotting phenotype associated with enhanced growth that dependent on protease aureolysin. The same adaptive evolved convergently different lineages via mutations regulatory gene loci promote aureolysin expression. Taken together, have dissected key trait host-switch event, involving availability nutrients. These findings highlight remarkable evolutionary plasticity underpinning its species tropism.

Язык: Английский

Процитировано

0
Coastal Influence on Microbiomes of the Southwest Atlantic Ocean DOI Creative Commons
Cristiane C. Thompson, Diogo A. Tschoeke,

Luciana Leomil

и другие.

Evolving Earth, Год журнала: 2024, Номер unknown, С. 100048 - 100048

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

0
Adaptive Responses of Cyanobacteria to Phosphate Limitation: A Focus on Marine Diazotrophs DOI Creative Commons

Chloé Caille,

Solange Duhamel, Amel Latifi

и другие.

Environmental Microbiology, Год журнала: 2024, Номер 26(12)

Опубликована: Дек. 1, 2024

ABSTRACT Phosphorus is an essential component of numerous macromolecules and vital for life. Its availability significantly influences primary production, particularly in oligotrophic environments. Marine diazotrophic cyanobacteria, which play key roles biogeochemical cycles through nitrogen fixation (N 2 fixation), have adapted to thrive phosphate (P i )‐poor areas. However, the molecular mechanisms that facilitate their adaptation such conditions remain incompletely understood. Bacteria evolved various strategies cope with P limitation, including detecting availability, utilising high‐affinity transporters, hydrolyzing dissolved organic phosphorus (DOP) enzymes. This review synthesises current knowledge regarding how cyanobacteria adapt scarcity, particular emphasis on subtropical marine free‐living diazotrophs ability utilise diverse DOP molecules. Omics approaches, as (meta)genomics (meta)transcriptomics, reveal resilience face scarcity highlight need further research into adaptive strategies. Adaptation limitation often intertwined broader response multiple limitations stresses. underscores importance understanding assess ecological these crucial microorganisms dynamic environments, context global climate change.

Язык: Английский

Процитировано

0
Renaming ‘Chemosensory’ Proteins (CSPs): Lipid/Nucleotide-Binding Proteins — Molecular Nomenclature, Structure, Expression, Function, Evolutionary Networks, Clinical Diseases and Associated Molecular Medicine DOI Open Access
Ao Liu,

Botong Sun,

Wei Fan

и другие.

Опубликована: Дек. 27, 2023

This is a brief critique of the functions—particularly olfactory functions—specified for “Chemosensory Protein” (CSPs) molecule family. On basis these proteins’ presence in sensory antennal lymph locusts, odor chemosensory ligand binding functions have been hypothesized. According to this hypothesis, entire protein superfamily referred as “CSPs”. However, new information and developments field CSP molecular research, such expression genes gut, brain, fat body, epidermis, pheromone gland, well gene profiling from most early developmental stages—that is, advance appearance chemical sense nerve cells—strongly suggest that has other roles are unrelated chemosensing. Moreover, CSPs found bacterial microbial prokaryote organisms addition insects. Thus, we examine molecule’s name, definition, RNA editing, structure, lipid properties, DNA interaction, evolutionary characteristics before referring family Proteins”. article tries compel discuss recent way rename Because its highly conserved distinctive feature (four adjacent cysteines), propose renaming “CSPs” “4CSPs” (4 Cysteines Soluble Proteins).

Язык: Английский

Процитировано

0