Results 71 to 80 of about 4,509 (176)

Structural analysis of the NifL‐NifA complex reveals the molecular basis of anti‐activation of nitrogen fixation gene expression in Azotobacter vinelandii

The FEBS Journal, Volume 293, Issue 6, Page 1643-1663, March 2026.
Understanding the molecular basis of nitrogen fixation is essential for engineering bacteria that fulfill the nitrogen demand of crop plants, reducing our reliance on synthetic nitrogen fertilizers. The bacterial two‐component system comprising the anti‐activator protein (NifL) and the Nif‐specific transcriptional activator (NifA) controls the nitrogen
Marcelo Bueno Batista, Jake Richardson, Michael W. Webster, Dmitry Ghilarov, John W. Peters, David M. Lawson, Ray Dixon   +6 more
wiley   +1 more source

Unlocking nitrogen regulation: structural insights into the NifL‐NifA complex and prospects for engineered diazotrophs

The FEBS Journal, Volume 293, Issue 6, Page 1616-1620, March 2026.
The urgent need for sustainable agriculture places biological nitrogen fixation at the forefront of current biotechnological research. Plant growth‐promoting rhizobacteria play crucial roles in agriculture by enhancing nutrient absorption, regulating hormonal balance, and providing reduced nitrogen to plants. Among these, diazotrophic bacteria, such as
Edileusa Cristina Marques Gerhardt, Khaled A. Selim   +1 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

Low abundance of phytophagous nematodes under invasive exotic Pinus elliottii – enemy release and plant–soil feedbacks

New Phytologist, Volume 249, Issue 6, Page 3060-3071, March 2026.
Summary According to the enemy release hypothesis (ERH), the fitness of exotic plants and their capacity to become invasive in their area of introduction may partly be attributable to the loss of their natural enemies. Invasive species may also benefit from modifying soil attributes and thereby creating a positive soil–plant feedback.
Lynda S. C. Guerrero, Erika Buscardo, Mario M. Inomoto, Laszlo Nagy   +3 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

Genome Analysis Reveals Diversity and Functional Potential of Novel Janthinobacterium Species From Subarctic Soils

MicrobiologyOpen, Volume 15, Issue 1, February 2026.
The Pseudomonadota are abundant and diverse members of high‐latitude soils. Here, we describe two novel species, Janthinobacterium silvisoli and Janthinobacterium saanense, of the order Burkholderiales, isolated from tundra heath and northern boreal forest soils.
Anil Kumar, Minna K. Männistö, Lee J. Kerkhof, Max M. Häggblom   +3 more
wiley   +1 more source

Spatial and Temporal Variability of Microbial Nitrogen Cycling Genes in Arctic Streams

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The Arctic is undergoing rapid climate change, with thawing permafrost and shifts in vegetation altering nitrogen (N) delivery into streams. These changes can significantly affect microbial biofilm diversity and functional roles, yet knowledge of streambed microbial biofilms remains scarce across the Arctic.
C. M. H. Holmboe, T. Riis, X. Han, A. Frossard, A. M. Romaní, J. B. Kjær, J. L. Tank, P. Giménez‐Grau, E. Hille, L. P. D'Acqui, N. Catalán, A. Pastor   +11 more
wiley   +1 more source

Microbial Metabolism and Disease Virulence Changes Across Day and Night in Coral Black Band Disease Lesions

Environmental Microbiology, Volume 28, Issue 2, February 2026.
Metatranscriptomic reads from black band disease (BBD) lesions derived from samples collected during the day and night were mapped to near‐complete BBD‐derived metagenome‐assembled genomes to profile diurnal metabolic shifts among key microbial groups. Photosynthesis genes from the cyanobacterium Roseofilum reptotaenium were highly expressed during the
Julia Y. Hung, Ira Cooke, Yui Sato, David J. Miller, David G. Bourne   +4 more
wiley   +1 more source