Results 61 to 70 of about 6,727 (173)

Nitrogen fixation in the western English Channel (NE Atlantic Ocean) [PDF]

, 2009
In temperate Atlantic waters (18.8 to 20.1°C), biological nitrogen fixation has beendemonstrated by 2 independent measurements: 15N-N2 incorporation and nifH identification in theDNA and expressed messenger RNA (mRNA).
Kelly-Gerreyn, BA, Kelly-Gerreyn, Boris A., Gilbert, JA, Gilbert, Jack A., Rees, AP, Rees, Andrew P.   +5 more
core   +1 more source

Seasonal nitrate drawdown transitions lake ecosystems from phosphorus to nitrogen deficiency in annual cycles

Limnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Phytoplankton biomass is often limited by nitrogen (N) and/or phosphorus (P). Quantifying the relative availability of N and P in an ecosystem is useful in indicating nutrient limitation status. In subtropical lakes, nitrate availability generally follows a seasonal pattern with maxima in the late winter/early spring and minima in late summer ...
Jasmine K. Stovall, Nicole D. Wagner, Katelyn McKindles, Michelle Neudeck, Matthew Rich, George S. Bullerjahn, J. Thad Scott   +6 more
wiley   +1 more source

PCR results of strain D5 nifH gene.

, 2013
PCR results of strain D5 nifH gene.
Yili Zhao (298495), Baoling Huang (298493), Chengqun Lv (298494), Rong Huang (298496)   +3 more
core   +1 more source

Phylogenetic dendrogram of strain D5 nifH gene.

, 2013
Phylogenetic dendrogram of strain D5 nifH gene.
Yili Zhao (298495), Baoling Huang (298493), Chengqun Lv (298494), Rong Huang (298496)   +3 more
core   +1 more source

In vitro biosynthesis of iron-molybdenum cofactor and maturation of the nif-encoded apodinitrogenase. Effect of substitution for NifH with site-specifically altered forms of NifH.

The Journal of biological chemistry, 1999
NifH has three different roles in the nitrogenase enzyme system. Apart from serving as the physiological electron donor to dinitrogenase, NifH is involved in iron-molybdenum cofactor (FeMo-co) biosynthesis and in maturation of the FeMo-co-deficient form of apodinitrogenase to a FeMo-co-activable form (apodinitrogenase maturation).
P, Rangaraj, M J, Ryle, W N, Lanzilotta, P W, Ludden, V K, Shah   +4 more
openaire   +2 more sources

Stream nifH sequence library

, 2018
Supplementary data for the article in Archives for Microbiology, 2018. DOI will be added later.Sequence library of nifH (nitrogenase) genes PCR-amplified and cloned from metagenomic extracts of sediments from three small prairie streams with different ...
Schneegurt, Mark A., Santos-Caton, Ingrid R., Caton, Todd M.   +2 more
core  

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

, 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.
Shigenobu Takeda (759081), Rebecca Langlois, Mills Matthew, Langlois Rebecca, Julie LaRoche (235849), Shigenobu Takeda, Julie LaRoche, Matthew Mills (2418784), Groskopf, Tobias, Matthew Mills, Rebecca Langlois (759080), LaRoche Julie, Tobias Großkopf (362107), Großkopf Tobias, LaRoche, Julie, Takeda Shigenobu, Langlois, Rebecca, Mills, Matthew, Großkopf, Tobias, Takeda, Shigenobu, Tobias Großkopf   +20 more
core   +1 more source

Expression of the Klebsiella pneumoniae nifH gene in Saccharomyces cerevisiae

Enzyme and Microbial Technology, 1987
Dinitrogenase reductase, a component of a complex and highly regulated prokaryotic enzyme, nitrogenase, is expressed in the eukaryote Saccharomyces cerevisiae. A plasmid pH-ADH-1 was constructed that directs the expression of the Klebsiella pneumoniae nifH gene, encoding dinitrogenase reductase, from the yeast alcohol dehydrogenase I promoter.
Claude V. Maina, Allen C. Yun, Aladar A. Szalay   +2 more
openaire   +1 more source

Abundance of Gamma-A nifH genes in the Gulf of Aqaba (Red Sea)

, 2013
Abundance of Gamma-A nifH genes in the Gulf of Aqaba (Red ...
Foster, Rachel A, Rachel A Foster (3153735), Zehr, Jonathan P, Jonathan P Zehr (6966632), Paytan, Adina, Adina Paytan (6966194)   +5 more
core   +1 more source

Bestimmung der Picoplanktondiversität und der Nitrogenase (nifH)-Gene im Nordatlantik

, 2002
Ziel dieser Diplomarbeit war es, die Diversität von stickstofffixierendem Picoplankton in oligotrophen Bereichen des Atlantiks zu analysieren.
Raab, Philipp
core