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On the backward excursions in the free-swimming magnetotactic multicellular prokaryote 'Candidatus Magnetoglobus multicellularis'.
Braz J Microbiol
December 2024
Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, RJ, Brazil.
Magnetotactic bacteria align to magnetic field lines while swimming in a behavior known as magnetotaxis. They are diverse phylogenetically and morphologically and include both unicellular and multicellular morphologies. The magnetotactic multicellular prokaryote (MMP) 'Candidatus Magnetoglobus multicellularis' has been extensively studied, even though it remains uncultured up to now.
View Article and Find Full Text PDFGenome-wide patterns of selection-drift variation strongly associate with organismal traits across the green plant lineage.
Genome Res
September 2024
Melbourne Integrative Genomics, School of BioSciences, University of Melbourne, Parkville VIC 3010, Australia;
Article Synopsis
- The study investigates the link between body architecture and molecular evolution in green algae, proposing that more complex body structures correspond to smaller effective population sizes and increased genetic drift.
- Analysis shows that lineages with complex body forms exhibit higher rates of genetic substitution compared to unicellular algae, suggesting that these features impact molecular evolution.
- However, contrary to initial hypotheses, the research finds that the effectiveness of natural selection does not strongly correlate with different life cycle types among green algae.
Temperature modulates dominance of a superinfecting Arctic virus in its unicellular algal host.
ISME J
January 2024
Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, PO Box 59, 1790AB Den Burg, Texel, The Netherlands.
Complex virus-virus interactions can arise when multiple viruses coinfect the same host, impacting infection outcomes with broader ecological and evolutionary significance for viruses and host. Yet, our knowledge regarding virus competition is still limited, especially for single-celled eukaryotic host-virus systems. Here, we report on mutual interference of two dsDNA viruses, MpoV-45T and MpoV-46T, competing for their Arctic algal host Micromonas polaris.
View Article and Find Full Text PDFDistinct changes in tomato-associated multi-kingdom microbiomes during Meloidogyne incognita parasitism.
Environ Microbiome
July 2024
Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Slagelse, 4200, Denmark.
Background: The interplay between root-knot nematode (RKN) parasitism and the complex web of host-associated microbiota has been recognized as pivotal for effective management of the pest. However, studies assessing this relationship have focussed on the bacterial and fungal communities, neglecting the unicellular eukaryotic members. Here, we employed amplicon sequencing analysis of the bacterial 16S rRNA, fungal ITS and eukaryotic 18S rRNA genes, and comprehensively examined how the microbiome composition, diversity and networking developed with time in the rhizospheres and roots of RKN-inoculated and non-inoculated tomato plants.
View Article and Find Full Text PDFInteractions of proteins with heparan sulfate.
Essays Biochem
December 2024
Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K.
Heparan sulfate (HS) is a glycosaminoglycan, polysaccharides that are considered to have arisen in the last common unicellular ancestor of multicellular animals. In this light, the large interactome of HS and its myriad functions in relation to the regulation of cell communication are not surprising. The binding of proteins to HS determines their localisation and diffusion, essential for embryonic development and homeostasis.
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