Results 61 to 70 of about 12,024 (210)

In Rhizobium japonicum the nitrogenase genes nifH and nifDK are separated [PDF]

Journal of Bacteriology, 1983
In contrast to Klebsiella pneumoniae or fast-growing Rhizobium species, such as R. meliloti, where the nitrogenase structural genes are clustered in one operon (nifHDK), in slow-growing Rhizobium japonicum 110, nifH and nifDK are on separate operons.
K, Kaluza, M, Fuhrmann, M, Hahn, B, Regensburger, H, Hennecke   +4 more
openaire   +2 more sources

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

Elevated CO2 and Warming Altered Grassland Microbial Communities in Soil Top-Layers. [PDF]

, 2018
As two central issues of global climate change, the continuous increase of both atmospheric CO2 concentrations and global temperature has profound effects on various terrestrial ecosystems.
Deng, Ye, He, Zhili, Jin, Decai, Tai, Xin, Van Nostrand, Joy D, Wang, Aijie, Wang, Daohan, Wang, Shang, Wu, Liyou, Yu, Hao, Zhou, Jizhong   +10 more
core   +4 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

Impacts of organic and conventional crop management on diversity and activity of free-living nitrogen fixing bacteria and total bacteria are subsidiary to temporal effects [PDF]

, 2012
A three year field study (2007-2009) of the diversity and numbers of the total and metabolically active free-living diazotophic bacteria and total bacterial communities in organic and conventionally managed agricultural soil was conducted at the ...
A. Mark Ibekwe, AA Keeling, AD van Diepeningen, AE Hartley, AV Sturz, B Doneche, B Moreno, BJ Campbell, BS Griffiths, C Ngosong, Carlo Leifert, Caroline H. Orr, CH Orr, CJ Beauchamp, D Fernández-Calviño, D Pimentel, DA Bossio, DM Chapin, DPH Lejon, E Kandeler, E Wessén, ES Lindström, F Poly, F Widmer, GD Bending, GMB Bohm, H Bürgmann, H Hauggaard-Nielsen, HL Hayden, I Spyrou, I Wartiainen, J Baxter, J Esperschütz, J Postma, JE Fox, JE Fox, JF Toljander, JI Prosser, Julia M. Cooper, K Birkhofer, K Jangid, KN Reddy, L Ogilvie, L Tamm, L van Overbeek, M Cycoń, M Cycoń, M Gamble, M Hartmann, MG Kibblewhite, MM Roper, MRR Coelho, MRR Coelho, N Fierer, NA Miloševiã, P Mäder, R Eckford, R Knowles, R Vieira, RE Drenovsky, RM Zablotowicz, S Diallo, S Hallin, S Kitoh, S Knauth, SA Omar, SC Reed, SE Morales, SF Hsu, SP Cummings, Stephen P. Cummings, TH DeLuca, Y Karlen   +72 more
core   +3 more sources

Microbial communities and bioactive compounds in marine sponges of the family Irciniidae-a review [PDF]

, 2014
Marine sponges harbour complex microbial communities of ecological and biotechnological importance. Here, we propose the application of the widespread sponge family Irciniidae as an appropriate model in microbiology and biochemistry research. Half a gram
Anand, Asano, Bandara, Bayer, Bringmann, Brochier-Armanet, Cardoso, Cook, Cook, Cristiane Hardoim, De Caralt, De Rosa, De Rosa, De Rosa, De Rosa, De Voogd, Degrassi, di Camillo, Dieckmann, Dobretsov, Duckworth, Duckworth, Enticknap, Ereskovsky, Erwin, Erwin, Erwin, Esteves, Fan, Fan, Fieseler, Fiore, Fisch, Flemer, Friedrich, Gaino, Han, Hardoim, Hardoim, Hardoim, Hentschel, Hentschel, Hentschel, Hentschel, Hochmuth, Hoffmann, Hoffmann, Holden, Höller, Isaacs, Jaeckle, Kalia, Kalinovskaya, Kamke, Kamke, Lee, Lee, Lee, Li, Lindquist, Liu, Lopanik, Lopanik, Lopanik, Lopanik, Love, Luter, Maldonado, Man-Aharonovich, Mohamed, Mohamed, Mohamed, Mohamed, Mohamed, Muscholl-Silberhorn, Osinga, O’Halloran, Pantile, Paz, Pester, Piel, Piel, Pita, Pita, Pita, Prokof'eva, Rinkevich, Rodrigo Costa, Sara, Schirmer, Schmitt, Schmitt, Schmitt, Sharp, Siegl, Siegl, Simister, Simister, Simister, Skindersoe, Spalding, Spang, Stabili, Staunton, Sudek, Tabares, Taylor, Taylor, Thakur, Thakur, Thiel, Thomas, Thomas, Usher, Usher, Vacelet, Van Soest, Van Treeck, Webster, Webster, Webster, Webster, Webster, Webster, Webster, Webster, Weisz, Wilkinson, Wilkinson, Wilkinson, Wilkinson, Wulff, Wörheide, Yang, Zan, Zehr, Zehr   +136 more
core   +2 more sources

Horizontal Transfer of Symbiosis Genes within and Between Rhizobial Genera : Occurrence and Importance [PDF]

, 2018
Rhizobial symbiosis genes are often carried on symbiotic islands or plasmids that can be transferred (horizontal transfer) between different bacterial species. Symbiosis genes involved in horizontal transfer have different phylogenies with respect to the
Baraúna, Bontemps, Estrada-de los Santos, Euan James, Haskett, J. Young, Liu, Marcelo Simon, Marek-Kozaczuk, Mitchell Andrews, Simon Hodge, Sofie De Meyer, Swofford, Tomasz Stępkowski, Vinuesa, Zhang, Zhao   +16 more
core   +3 more sources

The oxygen‐sensing FixLJ represses nitrogen fixation in Rhodopseudomonas palustris in response to oxygen

mLife, EarlyView.
Abstract Biological nitrogen fixation in symbiotic diazotrophs is subject to oxygen regulation by an oxygen‐sensing FixLJ two‐component system under micro‐oxic conditions. However, it remains unclear whether this mechanism is conserved in free‐living diazotrophs.
Lingwei Cui, Yan Zeng, Mengmei Wang, Lu Huang, Zheyi Wang, Ying Liu, Yanning Zheng   +6 more
wiley   +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