Algae metagenome
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA475823 | ENA |
REPOSITORIES: ENA
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Project description:A cyanobacterium, Thermosynechococcus elongatus BP1, was cultured with a heterotroph, Meiothermus ruber strain A, under a variety of conditions. A gene co-expression approach was used to infer a network of T. elongatus and M. ruber genes, with a focus on those genes from different species that were co-expressed, highlighting potential points of coordination and interaction.
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2018-07-03 | PXD008667 | Pride
Project description:We examine how the transcriptome of Prochlorococcus strain NATL2A changes in response to extended light deprivation, both when grown alone and in the presence of a naturally co-occurring heterotroph, Alteromonas macleodii MIT1002.
2018-05-01 | GSE93197 | GEO
Project description:Microbial autotroph-heterotroph interactions influence biogeochemical cycles on a global scale, but the diversity and complexity of natural systems and their intractability to in situ manipulation make it challenging to elucidate the principles governing these interactions. The study of assembling phototrophic biofilm communities provides a robust means to identify such interactions and evaluate their contributions to the recruitment and maintenance of phylogenetic and functional diversity overtime. To examine primary succession in phototrophic communities, we isolated two unicyanobacterial consortia from the microbial mat in HotLake, Washington, characterizing the membership and metabolic function of each consortium. We then analyzed the spatial structures and quantified the community compositions of their assembling biofilms. The consortia retained the same suite of heterotrophic species, identified as abundant members of the mat and assigned to Alphaproteobacteria, Gammaproteobacteria, and Bacteroidetes. Autotroph growth rates dominated early in assembly, yielding to increasing heterotroph growth rates late in succession. The two consortia exhibited similar assembly patterns, with increasing relative abundances of members from Bacteroidetes and Alphaproteobacteria concurrent with decreasing relative abundances of those from Gamma proteobacteria. Despite these similarities at higher taxonomic levels, the relative abundances of individual heterotrophic species were substantially different in the developing consortial biofilms. This suggests that, although similar niches are created by the cyanobacterial metabolisms, the resulting webs of autotroph-heterotroph and heterotroph-heterotroph interactions are specific to each primary producer. The relative simplicity and tractability of the Hot Lake unicyanobacterial consortia make them useful model systems for deciphering interspecies interactions and assembly principles relevant to natural microbial communities.
2014-06-24 | MTBLS75 | MetaboLights
Project description:Metagenomic analyses of the RNA viral communities in marine algae
| PRJDB8897 | ENA
Project description:We examine how the transcriptome of Prochlorococcus strain NATL2A changes in the presence of a naturally co-occurring heterotroph, Alteromonas macleodii MIT1002. Significant changes in the Prochlorococcus transcriptome were evident within six hours of co-culture, with groups of transcripts changing in different temporal waves. Many transcriptional changes persisted throughout the 48-hour experiment, indicating that the presence of the heterotroph affected a stable shift in Prochlorococcus physiology. These initial transcriptome changes largely correspond to reduced stress conditions within Prochlorococcus, as inferred from decreases in relative abundance for transcripts encoding DNA repair enzymes and many members of the âhigh-light inducibleâ family of stress response proteins. Notable changes were also seen in transcripts encoding components of the photosynthetic apparatus (particularly an increase in PSI subunits and chlorophyll synthesis enzymes), ribosomal proteins and biosynthetic enzymes. Changes in secretion-related proteins and transporters also highlight the potential for metabolic exchange between the two strains. At each of 7 timepoints, samples from 3 biological replicate co-cultures are compared to 3 biological replicate axenic Prochlorococcus cultures that serve as a control.
2016-06-10 | E-GEOD-73511 | biostudies-arrayexpress
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