Experiments linking nitrogenase gene expression to nitrogen fixation in the North Pacific subtropical gyre

By Jonathan P. Zehr, J. Montoya, Bethany D. Jenkins, I. Hewson, Elizabeth A. Mondragon, Cindy M. Short, M. Church, A. Hansen, David M. Karl. 2007

143 citations recorded by the source corpus.

Subfields: Ecology, Oceanography, Pollution

View Paper: https://www.semanticscholar.org/paper/b70e8b3508587e8f4544aa23cf07c003cb037c56

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Citations in the corpus

Regional distributions of nitrogen‐fixing bacteria in the Pacific Ocean (2008, methodology): “…sequence types recovered in the RT-PCR clone library; however, we did evaluate nifH gene distributions of two heterocyst-forming cyanobacteria (Het_1 and Het_2) frequently retrieved from RT-PCR clone libraries in the NPSG (Church et al. 2005b; Foster and Zehr 2006; Zehr et al. 2007).”
Nitrogen fixation by symbiotic cyanobacteria provides a source of nitrogen for the scleractinian coral Montastraea cavernosa (2007, background): “We do know, however, that prokaryotes fixing nitrogen are much more abundant in the oceans than previously believed, and that many of these are unicellular cyanobacteria related to the genera Gloeothece, Synechococcus, Crocosphaera and Synechocystis (Zehr et al. 2001, 2007).”
Nitrogenase genes in non-cyanobacterial plankton: prevalence, diversity and regulation in marine waters (2010, background): “In fact, nifH genes (e.g. Short et al. 2004, Moisander et al. 2006, Zehr et al. 2007, Hewson et al. 2007b, Langlois et al. 2008) and nifH transcripts (e.g. Bird et al. 2005, Short & Zehr 2007, Zehr et al. 2007, Man-Aharonovich et al. 2007) from these organisms are commonly detected in environments…”
Autotrophic picoplankton in mesozooplankton guts: evidence of aggregate feeding in the mesopelagic zone and export of small phytoplankton (2010, background): “Active transport of carbon via diel vertical migration is a key mechanism by which carbon export to the deepsea is enhanced (Longhurst et al. 1990, Zhang & Dam 1997, Al-Mutairi & Landry 2001, Schnetzer & Steinberg 2002a), and is another mechanism by which small phytoplankton cells are exported out…”
New insights into the ecology of the globally significant uncultured nitrogen-fixing symbiont UCYN-A (2016, background): “Science 349: 1163−1164 Zehr JP, Mellon MT, Zani S, York N (1998) New nitrogenfixing microorganisms detected in oligotrophic oceans by amplification of nitrogenase (nifH ) genes Appl Environ Microbiol 64: 3444−3450 Zehr JP, Waterbury JB, Turner PJ, Montoya JP and others (2001) Unicellular cyanobacter”
Seasonality of N2 fixation and nifH gene diversity in the Gulf of Aqaba (Red Sea) (2009, methodology): “Trichodesmium spp. physiology and nutrient fluxes in the North Pacific Subtropical Gyre.”
Variation in the active diazotrophic community in rice paddy - nifH PCR-DGGE analysis of rhizosphere and bulk soil (2008, background): “This approach has recently been applied to the investigation of the active diazotropic community in aquatic environments (Bird et al., 2005; Church et al., 2005; Zehr et al., 2007), microbial mat (Steppe and Pearl, 2005), in rice roots (Ueda et al.”
Phosphate availability and the ultimate control of new nitrogen input by nitrogen fixation in the tropical Pacific Ocean (2007, background): “Other diazotrophs such as the recently described unicellular cyanobacteria (Zehr et al., 2001; Zehr et al., 2007) further emphasise the importance of the N2 fixation process in the budget of new N.”