Results 51 to 60 of about 8,732 (191)

Characterization and analysis of nifH genes from Paenibacillus sabinae T27

Microbiological Research, 2012
Paenibacillus sabinae T27 (CCBAU 10202=DSM 17841) is a gram-positive, spore-forming diazotroph with high nitrogenase activities. Three nifH clusters were cloned from P. sabinae T27. Phylogenetic analysis revealed that NifH1, NifH2 and NifH3 cluster with Cyanobacterium. Each of the coding regions of nifH1, nifH2 and nifH3 from P.
Hong, Yuanyuan, Ma, Yuchao, Wu, Lixian, Maki, Miranda, Qin, Wensheng, Chen, Sanfeng   +5 more
openaire   +5 more sources

Mutations affecting regulation of the Klebsiella pneumoniae nifH (nitrogenase reductase) promotor [PDF]

Journal of Bacteriology, 1984
Starting with plasmid pSA30 which contains an intact nifHDKY operon, we selected mutants that no longer inhibited nitrogen fixation in Klebsiella pneumoniae. Three categories of mutants were found among eight mutant plasmids examined in detail. Three mutant plasmids carried a single-base-pair (bp) change at position -12 or -14 relative to the nifH ...
S E, Brown, F M, Ausubel
openaire   +2 more sources

nifH gene expression and diversity in geothermal springs of Tengchong, China

Frontiers in Microbiology, 2022
Terrestrial hot springs have been suggested to harbor diverse diazotrophic lineages by using DNA-based nifH gene phylogenetic analysis. However, only a small amount of diazotrophs were ever confirmed to perform nitrogen fixation. In order to explore the compositions of active diazotrophic populations in hot springs, the in situ expression and diversity
Zhao-Qi Song, Li Wang, Feng Liang, Qingfeng Zhou, Dongli Pei, Hongchen Jiang, Wen-Jun Li   +6 more
openaire   +3 more sources

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

Analysis of nifH‐RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2‐fixing community depending on depth and agricultural use of soil

MicrobiologyOpen, 2017
In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were retrieved from soil RNA. This dataset extends our knowledge about the structure and diversity of the functional diazotrophic communities in agricultural soils from ...
P. Calderoli, M. Collavino, F. Behrends Kraemer, Héctor J.M. Morrás, O. Aguilar   +4 more
semanticscholar   +1 more source

Harnessing synthetic microbial communities with nitrogen-fixing activity to promote rice growth

Open Agriculture
Improving the biological nitrogen fixation of rhizosphere bacteria in rice is expected to improve plant growth and productivity. Most studies have focused on the application of a single N2-fixing bacterium on rice plants.
Tran Van Chi, Nguyen Thanh Hai, Hoang Thi Lan Anh, Pham Thi Tuyet Mai, Nguyen Tuan Manh, Tran Trong Dai, Nguyen Thi Huong Giang, Han Viet-Cuong, Tran Anh Tuan, La Van Hien   +9 more
doaj   +1 more source

Diagnosis and Management of Prenatal Hereditary Pyropoikilocytosis

Prenatal Diagnosis, EarlyView.
ABSTRACT Hereditary pyropoikilocytosis (HPP) is a severe hemolytic anemia caused by variants in SPTA1, SPTB, and EPB41. These weaken horizontal interactions in the erythrocyte cytoskeleton, causing membrane fragmentation and splenic sequestration. It will readily cause fetal anemia and often hydrops fetalis. Prenatal diagnosis requires first ruling out
Connor Hartzell, Samantha Stover, Nora Gibson, Timothy Olson, James Connelly, Matthew Grace, Jennifer Andrews   +6 more
wiley   +1 more source

Dark N2 fixation: nifH expression in the redoxcline of the Black Sea

Aquatic Microbial Ecology, 2018
Fixed nitrogen is a limiting nutrient in many marine environments. Only a subset of the microbial community has the ability to fix dinitrogen gas (N2). Here, we document the transcription of nitrogenase reductase subunit nifH in N2-fixing bacteria in the
J. Kirkpatrick, C. Fuchsman, E. Yakushev, A. Egorov, J. T. Staley, J. Murray   +5 more
semanticscholar   +1 more source

Structure and functional genes associated with carbon, nitrogen, phosphorus, and sulfur cycling processes in periphyton: A comparison between natural and artificial rivers

River, EarlyView.
Network analysis of functional genes among prokaryotes, and eukaryotes in natural and artificial rivers. Abstract Periphyton in aquatic ecosystems plays vital roles in the elemental cycle process and is vulnerable to anthropogenic interference. However, few studies have explored the elemental cycles of carbon (C), nitrogen (N), phosphorus (P), and ...
Yulu Tian, Jiezhang Mo, Jiaxin Liu, Chenghao Li, Jiahua Guo   +4 more
wiley   +1 more source

Seasonal variation in nifH abundance and expression of cyanobacterial communities associated with boreal feather mosses

The ISME Journal, 2016
Dinitrogen (N2)-fixation by cyanobacteria living in symbiosis with pleurocarpous feather mosses (for example, Pleurozium schreberi and Hylocomium splendens) represents the main pathway of biological N input into N-depleted boreal forests. Little is known
D. Warshan, G. Bay, N. Nahar, D. Wardle, M. Nilsson, U. Rasmussen   +5 more
semanticscholar   +1 more source