Results 71 to 80 of about 4,642 (166)

Changes in Acetylene Reduction Activities and nifH Genes Associated with Field-Grown Sweet Potatoes with Different Nursery Farmers and Cultivars

Horticulturae, 2019
Sweet potato cultivars obtained from different nursery farmers were cultivated in an experimental field from seedling-stage to harvest, and the acetylene reduction activity (ARA) of different parts of the plant as well as the nifH genes associated with ...
Kazuhito Itoh, Keisuke Ohashi, Nao Yakai, Fumihiko Adachi, Shohei Hayashi   +4 more
doaj   +1 more source

Enhanced CO2 Coordinates the Spatial Recruitment of Diazotrophs in Rice Via Root Development

Plant, Cell &Environment, Volume 49, Issue 7, Page 3678-3693, July 2026.
ABSTRACT Understanding the reciprocal interaction between root development and coadapted beneficial microbes in response to elevated CO2 (eCO2) will facilitate the identification of nutrient‐efficient cultivars for sustainable agriculture. Here, systematic morphological, anatomical, chemical and gene expression assays performed under low‐nitrogen ...
Junwen Zhao, Yuting Chen, Qi Tao, Lukas Schreiber, Kiran Suresh, Michael Frei, Muhammad Shahedul Alam, Bing Li, Yaping Zhou, Marcel Baer, Frank Hochholdinger, Changquan Wang, Peng Yu   +12 more
wiley   +1 more source

Differential Responses of Soil Prokaryotic and Fungal Communities to Forest Conversion in Two Contrasting Zambian Soils

Soil Use and Management, Volume 42, Issue 3, July‐September 2026.
ABSTRACT Drylands are crucial for global carbon (C) storage and biodiversity, yet increasing food demands are driving the extensive conversion of natural lands to croplands in Zambia. While soil microbes play key roles in nutrient cycling, the effects of forest conversion to cropland on their community structure and functional potential remain unclear ...
Toru Hamamoto, Chikae Tatsumi, Nhamo Nhamo, Ikabongo Mukumbuta, David Chikoye, Yoshitaka Uchida   +5 more
wiley   +1 more source

Diversity of Azotobacter in relation to soil environment in Ebinur Lake wetland

Biotechnology & Biotechnological Equipment, 2019
Ebinur Lake wetland is the most representative temperate arid zone wetland ecosystem in China and it is the centre of the oasis and desertification of the Northern slope of Tianshan conjugate.
Zhong Zhengtao, Hu Wenge, Yang Di, He Yuan, Zhou Tingting   +4 more
doaj   +1 more source

Heterotrophic N2-fixation contributes to nitrogen economy of a common wetland sedge, Schoenoplectus californicus.

PLoS ONE, 2018
A survey of the ecological variability within 52 populations of Schoenoplectus californicus (C.A. Mey.) Soják across its distributional range revealed that it is commonly found in nitrogen (N) limited areas, but rarely in phosphorus limited soils.
Eliška Rejmánková, Dagmara Sirová, Stephanie T Castle, Jiří Bárta, Heather Carpenter   +4 more
doaj   +1 more source

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

Nitrogenase (nifH) gene expression in diazotrophic cyanobacteria in the Tropical North Atlantic in response to nutrient amendments

Frontiers in Microbiology, 2012
The Tropical North Atlantic (TNAtl) plays a critical role in the marine nitrogen cycle, as it supports high rates of biological nitrogen (N2) fixation, yet it is unclear whether this process is limited by the availability of iron (Fe), phosphate (P) or ...
Kendra A Turk-Kubo, Katherine M Achilles, Katherine M Achilles, Tracy RC Serros, Mari eOchiai, Mari eOchiai, Joseph P Montoya, Jonathan P Zehr   +7 more
doaj   +1 more source

Global biogeography of N₂-fixing microbes: nifH amplicon database and analytics workflow [PDF]

Earth System Science Data
Marine dinitrogen (N2) fixation is a globally significant biogeochemical process carried out by a specialized group of prokaryotes (diazotrophs), yet our understanding of their ecology is constantly evolving. Although marine N2 fixation is often ascribed
M. Morando, J. D. Magasin, S. Cheung, S. Cheung, M. M. Mills, J. P. Zehr, K. A. Turk-Kubo   +6 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

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