Results 61 to 70 of about 4,632 (165)

Mutagenic Survey of Key Residues of NifB Involved in Radical SAM‐Dependent Nitrogenase Cofactor Assembly

ChemBioChem, Volume 27, Issue 11, 15 June 2026.
NifB uses an RS–K1–K2 triad to assemble the L‐cluster, a [Fe8S9C] precursor of the nitrogenase cofactor. The RS module cleaves SAM to form the 5′‐dA radical, K1 serves structural/SAM‐sensing roles, and K2 drives radical‐dependent fusion with K1. SAM‐anchoring residues link SAM binding to cluster fusion, while termini and surface residues regulate ...
Calder Duffin, Robert Quechol, Yimo Yang, Chi Chung Lee, Yilin Hu, Markus W. Ribbe   +5 more
wiley   +1 more source

The shifts of diazotrophic communities in spring and summer associated with coral Galaxea astreata, Pavona decussata and Porites lutea

Frontiers in Microbiology, 2016
The coral holobiont often resides in oligotrophic waters; both coral cells and their symbiotic dinoflagellates possess ammonium assimilation enzymes and potentially benefit from the nitrogen fixation of coral-associated diazotrophs. However, the seasonal
Yanying Zhang, Yanying Zhang, Yanying Zhang, Qingsong Yang, Juan Ling, Joy Van Nostrand, Zhou Shi, Jizhong Zhou, Junde Dong, Junde Dong   +9 more
doaj   +1 more source

Influence of ammonium and moisture on survival and nifH transcription in the diazotrophic Pseudomonas mendocina S10

Notulae Scientia Biologicae, 2020
Nitrogen is important for crop productivity and usually added in form of urea into the soil which negatively affects the environment. It is important to utilize nitrogen fixing bacteria for improving the nitrogen content of soil in India.
Sushma SHARMA, Dileep K. SINGH
doaj   +1 more source

Expression of nifH genes by diazotrophic bacteria in the rhizosphere of short form Spartina alterniflora [PDF]

FEMS Microbiology Ecology, 2003
Abstract A diverse assemblage of diazotrophic bacteria exists in the rhizosphere of the smooth cordgrass, Spartina alterniflora, but the taxa actively involved in nitrogen fixation have not been determined. In order to identify the diazotrophs that were actively expressing nifH, the gene encoding the nitrogenase iron protein, mRNA was extracted from ...
Michelle M, Brown, Michael J, Friez, Charles R, Lovell   +2 more
openaire   +2 more sources

Faba Bean (Vicia faba L.) Nodulating Rhizobia in Panxi, China, Are Diverse at Species, Plant Growth Promoting Ability, and Symbiosis Related Gene Levels

Frontiers in Microbiology, 2018
We isolated 65 rhizobial strains from faba bean (Vicia faba L.) from Panxi, China, studied their plant growth promoting ability with nitrogen free hydroponics, genetic diversity with clustered analysis of combined ARDRA and IGS-RFLP, and phylogeny by ...
Yuan X. Chen, Lan Zou, Petri Penttinen, Petri Penttinen, Qiang Chen, Qi Q. Li, Chang Q. Wang, Kai W. Xu   +7 more
doaj   +1 more source

Identifikasi dan Kekerabatan Rhizobia Pohon Mangium dan Sengon Berdasarkan nodD1 dan nifH

Jurnal Ilmu Pertanian Indonesia, 2022
Rhizobia from legumes Acacia mangium (Mangium) and Paraserianthes falcataria (Sengon) have often been isolated and studied for their applications to plants, but studies on the nod and nif genes are still lacking.
Misbakhul Bait, Rumella Simarmata, Rahayu Widyastuti   +2 more
doaj   +1 more source

Influence of Cowpea Plants on Soil Bacterial Community and Soil Quality: Effects of the Rhizosphere

Plant-Environment Interactions, Volume 7, Issue 3, June 2026.
ABSTRACT Cowpea (Vigna Unguiculata), a vital legume for suitable agriculture and food security in sub‐Saharan Africa, plays a crucial role in improving soil health through intricate plant‐microbe interactions in the rhizosphere. This review synthesizes current knowledge on the microbial interactions in the rhizosphere, focusing on soil health ...
Motlagomang Khantsi, Olubukola Oluranti Babalola   +1 more
wiley   +1 more source

Temperature‐Dependent Effects of Laboratory‐Heated Dissolved Organic Matter on Aquatic Microbiome Composition and Nitrogen Cycling Dynamics

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Wildfires generate partially combusted biomass that mobilizes to aquatic ecosystems as dissolved pyrogenic organic matter (dPyOM) in runoff, where it can impact surface water quality. However, the influence of dPyOM on aquatic microbiome composition, functional gene distribution, and biogeochemical processes remains poorly understood, with ...
Saraf Islam Promi, Nichole M. Grey, Bailley Hardage, Courtney M. Gardner   +3 more
wiley   +1 more source

Marine bacterial richness increases towards higher latitudes in the eastern Indian Ocean

Limnology and Oceanography Letters, 2018
We investigated the bacterial community structure in surface waters along a 2500 km transect in the eastern Indian Ocean. Using high throughput sequencing of the 16S rRNA gene, we measured a significant latitudinal increase in bacterial richness from 800
Eric J. Raes, Levente Bodrossy, Jodie van de Kamp, Andrew Bissett, Anya M. Waite   +4 more
doaj   +1 more source

Fog, Symbiosis, and Survival: The Ecological Architecture of the Grit Crust From the Atacama Desert Represents a Lichen Holobiome Rather Than a Soil Microbiome

Environmental Microbiology, Volume 28, Issue 6, June 2026.
Multi‐marker metabarcoding (16S rRNA, 18S rRNA, ITS2) of the fog‐dependent grit crust in the Atacama Desert reveals a community structured by lichen symbioses rather than typical soil‐derived microbial assemblages. The green algal photobiont Trebouxia dominates the eukaryotic community, accompanied by lichenized Caliciales and lichen‐associated ...
Patrick Jung, Lina Werner, Rebekah Brand, Laura Briegel‐Williams, Karen Baumann, Guillaume Letendu, Michael Lakatos   +6 more
wiley   +1 more source