Results 41 to 50 of about 3,014 (133)

Diazotrophic abundance and community structure associated with three meadow plants on the Qinghai-Tibet Plateau

Frontiers in Microbiology
Symbiotic diazotrophs form associations with legumes and substantially fix nitrogen into soils. However, grasslands on the Qinghai-Tibet Plateau are dominated by non-legume plants, such as Kobresia tibetica.
Jean Bosco Nshimiyimana, Jean Bosco Nshimiyimana, Kang Zhao, Kang Zhao, Wenying Wang, Wenying Wang, Weidong Kong, Weidong Kong   +7 more
doaj   +1 more source

New Perspectives on Nitrogen Fixation Measurements Using 15N2 Gas

Frontiers in Marine Science, 2018
Recently, the method widely used to determine 15N2 fixation rates in marine and freshwater environments was found to underestimate rates because the dissolution of the added 15N2 gas bubble in seawater takes longer than theoretically calculated.
Nicola Wannicke, Nicola Wannicke, Mar Benavides, Mar Benavides, Tage Dalsgaard, Tage Dalsgaard, Joachim W. Dippner, Joseph P. Montoya, Maren Voss   +8 more
doaj   +1 more source

Redox Regulation in Diazotrophic Bacteria in Interaction with Plants

Antioxidants, 2021
Plants interact with a large number of microorganisms that greatly influence their growth and health. Among the beneficial microorganisms, rhizosphere bacteria known as Plant Growth Promoting Bacteria increase plant fitness by producing compounds such as
Karine Mandon, Fanny Nazaret, Davoud Farajzadeh, Geneviève Alloing, Pierre Frendo   +4 more
doaj   +1 more source

Photosynthesis regulation impacts carbon and nitrogen assimilation in the diazotrophic cyanobacterium Anabaena sp. PCC 7120

New Phytologist, Volume 251, Issue 1, Page 94-110, July 2026.
Model of intercellular functional coordination in Anabaena. Summary Diazotrophic cyanobacteria fix both atmospheric carbon (C) and nitrogen (N) into biomass, but the two assimilation pathways are not compatible. Species like Anabaena sp. PCC 7120 physically separate C and N assimilation in different cell types.
Anna Santin, Mattia Storti, Massimo Mezzavilla, Anna Fortunato, Filippo Fiorin, David C. A. Gaboriau, Francesca Arcudi, Enrique Flores, Tomas Morosinotto, Giorgio Perin   +9 more
wiley   +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

Anthropogenic impact on diazotrophic diversity in the mangrove rhizosphere revealed by nifH pyrosequencing

Frontiers in Microbiology, 2015
Diazotrophs in the mangrove rhizosphere play a major role in providing new nitrogen to the mangrove ecosystem and their composition and activity are strongly influenced by anthropogenic activity and ecological conditions.
Hongmei eJing, Xiaomin eXia, Hongbin eLiu, Zhi eZhou, Chen eWu, Sanjay eNagarajan   +5 more
doaj   +1 more source

Diazotroph Genomes and Their Seasonal Dynamics in a Stratified Humic Bog Lake

Frontiers in Microbiology, 2020
Aquatic N-fixation is generally associated with the growth and mass development of Cyanobacteria in nitrogen-deprived photic zones. However, sequenced genomes and environmental surveys suggest active aquatic N-fixation also by many non-cyanobacterial ...
Leyden Fernandez, Sari Peura, Alexander Eiler, Alexander Eiler, Alexandra M. Linz, Katherine D. McMahon, Katherine D. McMahon, Stefan Bertilsson, Stefan Bertilsson   +8 more
doaj   +1 more source

Functional Metagenomics Insights Into the Allium ampeloprasum Rhizosphere Microbiome Under Different Fertilization Regimes

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
Shotgun metagenomic sequencing was used to characterize the functional potential of the Allium ampeloprasum rhizosphere microbiome under chemical fertilizer (G1), biofertilizer (G2), and unfertilized (Bulk) soil (G3) management practices. This study revealed that different fertilization regimes altered microbial functional profiles.
Oluwaseun Emmanuel Shittu, Ben Jesuorsemwen Enagbonma, Olubukola Oluranti Babalola   +2 more
wiley   +1 more source

Dinitrogen fixation in aphotic oxygenated marine environments

Frontiers in Microbiology, 2013
We measured N2 fixation rates from oceanic zones that have traditionally been ignored as sources of biological N2 fixation; the aphotic, fully oxygenated, nitrate (NO3-)-rich, waters of the oligotrophic Levantine Basin (LB) and the Gulf of Aqaba (GA). N2
Eyal eRahav, Edo eBar-Zeev, Sarah eOhayion, Hila eElifantz, Natalia eBelkin, Barak eHerut, Margaret R. Mulholland, Ilana R Berman-Frank   +7 more
doaj   +1 more source

East‐West Variability in Nitrogen Sources Sustaining Pelagic Food Webs in the Subtropical North Pacific Ocean Revealed by Stable Isotopic Analyses

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Biological N2 fixation sustains pelagic ecosystems in subtropical oligotrophic waters. However, its impact on food webs as a nitrogen source remains poorly understood. Here, we quantified the contribution of diazotroph‐derived nitrogen to grazing food chains in the subtropical North Pacific in summer, where N2 fixation activity varies markedly
Sachiko Horii, Hiroaki Saito, Keitaro Fukushima, Yuji Onishi, Keisuke Koba, Ken Furuya, Kazutaka Takahashi   +6 more
wiley   +1 more source