Results 71 to 80 of about 5,029 (176)

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

Angewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol, Yimo Yang, Chi Chung Lee, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +1 more source

Metagenomic of Actinomycetes Based on 16S rRNA and nifH Genes in Soil and Roots of Four Indonesian Rice Cultivars Using PCR-DGGE

Hayati Journal of Biosciences, 2015
The research was conducted to study the metagenomic of actinomycetes based on 16S ribosomal RNA (rRNA) and bacterial nifH genes in soil and roots of four rice cultivars.
Mahyarudin, Iman Rusmana, Yulin Lestari
doaj   +1 more source

Nitrogen Fertilization Reduces Nitrogen Fixation Activity of Diverse Diazotrophs in Switchgrass Roots

Phytobiomes Journal, 2020
The use of synthetic nitrogen fertilizers to grow biofuel crops adds to the economic and environmental costs of biomass production. Biological nitrogen fixation provides an alternative, eco-friendly source of nitrogen for leguminous plants and some ...
Rahul A. Bahulikar, Srinivasa R. Chaluvadi, Ivone Torres-Jerez, Jagadish Mosali, Jeffrey L. Bennetzen, Michael Udvardi   +5 more
doaj   +1 more source

Analysis of nifH DNA and RNA reveals a disproportionate contribution to nitrogenase activities by rare plankton-associated diazotrophs

BMC Microbiology, 2019
Background Holobionts comprising nitrogen-fixing diazotrophs and phytoplankton or zooplankton are ubiquitous in the pelagic sea. However, neither the community structure of plankton-associated diazotrophs (PADs) nor their nitrogenase transcriptional ...
Qing-Song Yang, Jun-De Dong, Manzoor Ahmad, Juan Ling, Wei-Guo Zhou, Ye-Hui Tan, Yuan-Zhou Zhang, Dan-Dan Shen, Yan-Ying Zhang   +8 more
doaj   +1 more source

The oxygen‐sensing FixLJ represses nitrogen fixation in Rhodopseudomonas palustris in response to oxygen

mLife, Volume 5, Issue 3, Page 312-324, June 2026.
Abstract Biological nitrogen fixation in symbiotic diazotrophs is subject to oxygen regulation by an oxygen‐sensing FixLJ two‐component system under micro‐oxic conditions. However, it remains unclear whether this mechanism is conserved in free‐living diazotrophs.
Lingwei Cui, Yan Zeng, Mengmei Wang, Lu Huang, Zheyi Wang, Ying Liu, Yanning Zheng   +6 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 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

Temporal dynamics of abundance and composition of nitrogen-fixing communities across agricultural soils.

PLoS ONE, 2013
BackgroundDespite the fact that the fixation of nitrogen is one of the most significant nutrient processes in the terrestrial ecosystem, a thorough study of the spatial and temporal patterns in the abundance and distribution of N-fixing communities has ...
Michele C Pereira E Silva, Brigitte Schloter-Hai, Michael Schloter, Jan Dirk van Elsas, Joana Falcão Salles   +4 more
doaj   +1 more source

In vitro biosynthesis of iron-molybdenum cofactor and maturation of the nif-encoded apodinitrogenase. Effect of substitution for NifH with site-specifically altered forms of NifH.

The Journal of biological chemistry, 1999
NifH has three different roles in the nitrogenase enzyme system. Apart from serving as the physiological electron donor to dinitrogenase, NifH is involved in iron-molybdenum cofactor (FeMo-co) biosynthesis and in maturation of the FeMo-co-deficient form of apodinitrogenase to a FeMo-co-activable form (apodinitrogenase maturation).
P, Rangaraj, M J, Ryle, W N, Lanzilotta, P W, Ludden, V K, Shah   +4 more
openaire   +2 more sources