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A communal catalogue reveals Earth’s multiscale microbial diversity
A meta-analysis of microbial community samples collected by hundreds of researchers for the Earth Microbiome Project is presented, creating both a reference database giving global context to DNA sequence data and a framework for incorporating data from future studies, fostering increasingly complete characterization of Earth’s microbial diversity.
The tiny eukaryote Ostreococcus provides genomic insights into the paradox of plankton speciation
- B. Palenik, J. Grimwood, I. Grigoriev
- Biology, Environmental ScienceProceedings of the National Academy of Sciences
- 1 May 2007
It is speculated that this latter process may be involved in altering the cell-surface characteristics of each species, and selenoenzymes, novel fusion proteins, and loss of some major protein families including ones associated with chromatin are likely important adaptations for achieving a small cell size.
Temporal variation of Synechococcus clades at a coastal Pacific Ocean monitoring site
A quantitative PCR strategy using the gene encoding as a subunit of DNA-dependent RNA polymerase (rpoC1) and applied to a 3-year time series of surface samples from the Scripps Institution of Oceanography pier showed evidence of a seasonal cycle of Synechococcus diversity.
CHARACTERIZATION OF HaRNAV, A SINGLE‐STRANDED RNA VIRUS CAUSING LYSIS OF HETEROSIGMA AKASHIWO (RAPHIDOPHYCEAE) 1
The characterization of HaRNAV demonstrates that Ha RNAV is a novel type of phytoplankton virus but has some similarities with plant viruses belonging to the Sequiviridae and to other known ssRNA viruses.
The Role of Host Phylogeny Varies in Shaping Microbial Diversity in the Hindguts of Lower Termites
- V. Tai, E. James, C. Nalepa, R. Scheffrahn, S. Perlman, P. Keeling
- BiologyApplied and Environmental Microbiology
- 1 December 2014
Historical effects probably resulting from vertical inheritance have had a prominent role in structuring the hindgut communities, especially of the parabasalids, but dispersal and environmental acquisition have played a larger role in community composition than previously expected.
Microarray analysis of phosphate regulation in the marine cyanobacterium Synechococcus sp. WH8102
A high degree of overlap in the sets of genes affected by P stress conditions and in the knockout mutants supports this hypothesis; however, there is some indication that other regulators may be involved in this response in Synechococcus sp.
PHYLOGENY OF THE DUMONTIACEAE (GIGARTINALES, RHODOPHYTA) AND ASSOCIATED FAMILIES BASED ON SSU rDNA AND INTERNAL TRANSCRIBED SPACER SEQUENCE DATA
Phylogenetic analyses using a combination of SSU, ITS, and morphological data within this clade produced two strongly supported clades, a Dilsea/Neodilsea clade and a Cryptosiphonia/Dumontia clade.
Coastal Synechococcus metagenome reveals major roles for horizontal gene transfer and plasmids in population diversity.
The natural population metagenome had high sequence identity to most genes from the coastal model strains but diverged greatly from these genomes in multiple regions of atypical trinucleotide content that encoded diverse functions.
Whole-genome microarray analyses of Synechococcus-Vibrio interactions.
- V. Tai, I. Paulsen, K. Phillippy, D. A. Johnson, B. Palenik
- BiologyEnvironmental microbiology
- 1 October 2009
Microbes live in diverse communities yet their physiologies are typically studied in axenic culture. To begin to address this dichotomy, whole-genome microarray analyses were used and revealed that…
The green ribbon: Multiscale physical control of phytoplankton productivity and community structure over a narrow continental shelf
Chlorophyll concentration, phytoplankton biomass, and total and nitrate‐fueled primary productivity increase toward the coast over the 12‐km‐wide continental shelf of the southern portion of the…