Results 71 to 80 of about 4,632 (165)

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

The Elbe Estuary Microbiome Shifts With Salinity and Discharge and Depends on Fresh Organic Matter and Nutrient Availability

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Microbial diversity within the Elbe Estuary was found to be more strongly governed by seasonal variability, salinity, and discharge than by spatial heterogeneity. Oligohaline regions sustain high diversity, while nutrient and redox conditions drive functional shifts.
Vanessa Russnak, Raphael Koll, Sabine Keuter, Tina Sanders, Kirstin Dähnke   +4 more
wiley   +1 more source

Elucidating the Functional and Taxonomic Diversity of Soil Microbial Communities From Three Commercial Soybean Farms in South Africa

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Prior to inoculation of soybeans, South African soils contain no Bradyhizobia that nodulate and fix nitrogen in soybeans. Soybean cultivation with prolonged inoculation resulted in the establishment and dominance of Bradyrhizobia in three soybean farms in South Africa as revealed by a microbial community study using shotgun metagenomics. ABSTRACT Prior
Khumbudzo Ndhlovu, Adeola Salawu‐Rotimi, Francina L. Bopape, Prudence N. Mtsweni, Olubukola Oluranti Babalola, Ahmed Idris Hassen   +5 more
wiley   +1 more source

Gammaproteobacterial diazotrophs and nifH gene expression in surface waters of the South Pacific Ocean [PDF]

The ISME Journal, 2014
Abstract In addition to the cyanobacterial N2-fixers (diazotrophs), there is a high nifH gene diversity of non-cyanobacterial groups present in marine environments, yet quantitative information about these groups is scarce. N2 fixation potential (nifH gene expression), diversity and distributions of the uncultivated diazotroph ...
Moisander, Pia H, Serros, Tracy, Paerl, Ryan W, Beinart, Roxanne A, Zehr, Jonathan P   +4 more
openaire   +4 more sources

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

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

Genomic and secondary metabolites of the marine cyanobacterium Capilliphycus salinus ALCB114379

Journal of Phycology, Volume 62, Issue 3, Page 904-916, June 2026.
Abstract Assembling high‐quality genomes from underexplored environments can be helpful for understanding microbial diversity and identifying novel species. The Cyanobacterium type strain Capilliphycus salinus ALCB114379 is a representative of Oscillatoriales order isolated from a supralittoral zone of the south Atlantic Ocean in Brazil, an ecotone ...
Gabriel Schimmelpfeng Passos, Rafael Barty Dextro, Mauricio Junior Machado, Anderson Miguel Teixeira Feitosa, Núbia Pereira Silva, Renata Beatriz Cruz, Ana Paula Dini Andreote, Ernani Pinto, Marli Fatima Fiore   +8 more
wiley   +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

A ‘Genome‐First’ Framework for Next‐Generation Bioinputs: From Functional Mining to Rational Synthetic Microbial Communities

Environmental Microbiology, Volume 28, Issue 5, May 2026.
I propose a ‘genome‐first’ framework to collapse the phenotypic bottleneck in bioinput discovery. By integrating multi‐layered genome mining and reverse ecology, this paradigm enables the rational design of stable synthetic microbial communities for a data‐driven and sustainable agricultural bioeconomy.
Osiel Silva Gonçalves
wiley   +1 more source