Results 111 to 120 of about 3,158,601 (308)

Determinants of the Bacterial Diversity in Manipulated and Natural Soils [PDF]

open access: yes, 2008
Soils harbor highly diverse bacterial communities. It is still poorly understood whether functional redundancy or a multitude of ecological niche modify the abundance and community composition of bacteria in soil.
Zul, Delita
core   +1 more source

Denitrifying genes in bacterial and Archaeal genomes

open access: yesBiochimica et Biophysica Acta (BBA) - Gene Structure and Expression, 2002
Denitrification, the reduction of nitrate or nitrite to nitrous oxide or dinitrogen, is the major mechanism by which fixed nitrogen returns to the atmosphere from soil and water. Although the denitrifying ability has been found in microorganisms belonging to numerous groups of bacteria and Archaea, the genes encoding the denitrifying reductases have ...
openaire   +4 more sources

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

The majority of genes in the pathogenic Neisseria species are present in non-pathogenic Neisseria lactamica, including those designated as 'virulence genes' [PDF]

open access: yes, 2006
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work ...
Snyder, Lori A. S.   +10 more
core   +1 more source

Identification of essential genes by transposon insertion sequencing and genome-scale metabolic model construction in Streptococcus suis

open access: yesMicrobiology Spectrum
Bacterial essential genes are indispensable for the survival of bacteria and therefore are attractive targets for novel anti-microbial drugs. Identifying essential genes provides a roadmap for developing novel antibiotics and anti-microbial therapies. In
Yongqing Zhang   +9 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Novel cyclic di-GMP effectors of the YajQ protein family control bacterial virulence [PDF]

open access: yes, 2014
Bis-(3',5') cyclic di-guanylate (cyclic di-GMP) is a key bacterial second messenger that is implicated in the regulation of many critical processes that include motility, biofilm formation and virulence. Cyclic di-GMP influences diverse functions through
Caly, Delphine L.   +32 more
core   +1 more source

Transcriptome sequencing and expression analysis in peanut reveal the potential mechanism response to Ralstonia solanacearum infection

open access: yesBMC Plant Biology
Background Bacterial wilt caused by Ralstonia solanacearum severely affects peanut (Arachis hypogaea L.) yields. The breeding of resistant cultivars is an efficient means of controlling plant diseases.
Xiao Wang   +14 more
doaj   +1 more source

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