Results 1 to 10 of about 8,732 (191)

NifH- Harboring Bacterial Community Composition Across an Alaskan Permafrost Thaw Gradient [PDF]

Frontiers in Microbiology, 2016
Since nitrogen (N) is often limiting in permafrost soils, we investigated the N2-fixing genetic potential and the inferred taxa harboring those genes by sequencing nifH gene fragments in samples taken along a permafrost thaw gradient in an Alaskan boreal
Christopher Ryan Penton, Christopher Ryan Penton, Caiyun Yang, Caiyun Yang, Liyou Wu, Qiong Wang, Jin Zhang, Feifei Liu, Yujia Qin, Ye Deng, Christopher L Hemme, Tianling Zheng, Edward A.G. Schuur, James M. Tiedje, Jizhong Zhou, Jizhong Zhou, Jizhong Zhou   +16 more
doaj   +6 more sources

Undervalued Pseudo-nifH Sequences in Public Databases Distort Metagenomic Insights into Biological Nitrogen Fixers

mSphere, 2021
Nitrogen fixation, a distinct process incorporating the inactive atmospheric nitrogen into the active biological processes, has been a major topic in biological and geochemical studies.
Kazumori Mise, Yoko Masuda, Keishi Senoo, Hideomi Itoh   +3 more
doaj   +2 more sources

Seasonal and long-term effects of nutrient additions and liming on the nifH gene in cerrado soils under native vegetation

iScience, 2021
Summary: Biological nitrogen fixation (BNF) represents the main input source of N in tropical savannas. BNF could be particularly important for Brazilian savannas (known as Cerrado) that show a highly conservative N cycle.
Rafaella Silveira, Thiago de Roure Bandeira de Mello, Maria Regina Silveira Sartori, Gabriel Sérgio Costa Alves, Fernando Campos de Assis Fonseca, Carla Simone Vizzotto, Ricardo Henrique Krüger, Mercedes Maria da Cunha Bustamante   +7 more
doaj   +2 more sources

Genetic analysis of the NifM dependence of the nitrogenase iron proteins [PDF]

mBio
NifH maturation in certain diazotrophic bacteria depends on NifM, a protein with a PpiC-isomerase domain. Intriguingly, the putative proline substrate for NifM is present in NifH proteins from strains lacking nifM, raising questions regarding the actual ...
Zhuoting Xie, Shuyi Cai, Haoyang Chen, Shuyuan Kong, Letian Tang, Yi-Ping Wang, Jianguo Yang   +6 more
doaj   +2 more sources

Evaluation of Primers Targeting the Diazotroph Functional Gene and Development of NifMAP – A Bioinformatics Pipeline for Analyzing nifH Amplicon Data

Frontiers in Microbiology, 2018
Diazotrophic microorganisms introduce biologically available nitrogen (N) to the global N cycle through the activity of the nitrogenase enzyme. The genetically conserved dinitrogenase reductase (nifH) gene is phylogenetically distributed across four ...
Roey Angel, Maximilian Nepel, Christopher Panhölzl, Hannes Schmidt, Craig W. Herbold, Stephanie A. Eichorst, Dagmar Woebken   +6 more
doaj   +2 more sources

Widespread Distribution and Expression of Gamma A (UMB), an Uncultured, Diazotrophic, γ-Proteobacterial nifH Phylotype. [PDF]

PLoS ONE, 2015
Marine dinitrogen (N2) fixation studies have focused nearly exclusively on cyanobacterial diazotrophs; however γ-proteobacteria are an abundant component of the marine community and have been largely overlooked until recently.
Rebecca Langlois, Tobias Großkopf, Matthew Mills, Shigenobu Takeda, Julie LaRoche   +4 more
doaj   +2 more sources

NIFtHool: an informatics program for identification of NifH proteins using deep neural networks [version 1; peer review: 2 approved]

F1000Research, 2022
Atmospheric nitrogen fixation carried out by microorganisms has environmental and industrial importance, related to the increase of soil fertility and productivity.
Marco Esteban Gudiño Gomezjurado, Diego Almeida-Galárraga, Evelyn Dayana Aguiar Salazar, Fernando Villalba-Meneses, Graciela Salum, Jefferson Daniel Suquilanda-Pesántez   +5 more
doaj   +2 more sources

A comprehensive evaluation of PCR primers to amplify the nifH gene of nitrogenase. [PDF]

PLoS ONE, 2012
The nifH gene is the most widely sequenced marker gene used to identify nitrogen-fixing Bacteria and Archaea. Numerous PCR primers have been designed to amplify nifH, but a comprehensive evaluation of nifH PCR primers has not been performed. We performed
John Christian Gaby, Daniel H Buckley
doaj   +2 more sources

Nitrogen Fixation Aligns with nifH Abundance and Expression in Two Coral Trophic Functional Groups

Frontiers in Microbiology, 2017
Microbial nitrogen fixation (diazotrophy) is a functional trait widely associated with tropical reef-building (scleractinian) corals. While the integral role of nitrogen fixation in coral nutrient dynamics is recognized, its ecological significance ...
Claudia Pogoreutz, Claudia Pogoreutz, Claudia Pogoreutz, Nils Rädecker, Nils Rädecker, Anny Cárdenas, Anny Cárdenas, Astrid Gärdes, Christian Wild, Christian R. Voolstra   +9 more
doaj   +2 more sources

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   +2 more sources