Nitrogen fixation by unicellular diazotrophic cyanobacteria in the temperate oligotrophic North Pacific Ocean

By J. Needoba, R. Foster, C. Sakamoto, Jonathan P. Zehr, K. Johnson. 2007

148 citations recorded by the source corpus.

Subfields: Ecology, Molecular Biology, Oceanography

View Paper: https://www.semanticscholar.org/paper/18a6790c6c09c589888fe49aac9ec5c9515583c2

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Citations in the corpus

Differing responses of marine N2 fixers to warming and consequences for future diazotroph community structure (2014, background): “Based on nifH DNA copy abundance, UCYN-A cyanobacteria (average 103−105 copies l−1, Church et al. 2008, Moisander et al. 2010) have been observed at temperatures ranging from 15 to 30°C (Needoba et al. 2007, Church et al. 2008, Langlois et al. 2008).”
Biogeographical controls on the marine nitrogen fixers (2011, background): “undertake the energetically expensive process of nitrogen fixation [e.g., Capone et al., 1997; Langlois et al., 2005; LaRoche and Breitbarth, 2005; Needoba et al., 2007].”
Heterotrophic bacteria as major nitrogen fixers in the euphotic zone of the Indian Ocean (2014, background): “UCYN-A has typically been observed in temperate regions where the SST is generally below 20–25°C [Needoba et al., 2007; Church et al., 2009; Moisander et al., 2010].”
Nitrogen fixation in the western equatorial Pacific: Rates, diazotrophic cyanobacterial size class distribution, and biogeochemical significance (2009, background): “…marine nitrogen fixation is constantly evolving, and emerging satellite [Westberry et al., 2005], geochemical [Deutsch et al., 2001, 2007], and biological [Needoba et al., 2007] evidence suggests that diazotrophy may not be limited to the nitrate-depleted surface waters of the oligotrophic ocean.”
Nitrogen fixation in the western English Channel (NE Atlantic Ocean) (2009, unknown): “Other workers have reported nitrogen fixation and/or the diversity and expression of nifH genes under temperate conditions (e.g. Affourtit et al. 2001, Needoba et al. 2007, Short & Zehr 2007), but these were in brackish or estuarine waters and off-shelf oligotrophic Pacific waters, respectively.”
Nitrogenase genes in non-cyanobacterial plankton: prevalence, diversity and regulation in marine waters (2010, background): “…and heterotrophic diazotrophs have also been reported from temperate waters (Affourtit et al. 2001, Wasmund et al. 2001, Holl 238 Riemann et al.: Non-cyanobacterial diazotrophs in marine waters et al. 2007, Man-Aharonovich et al. 2007, Needoba et al. 2007, Farnelid et al. 2009, Rees et al. 2009).”
Latitudinal distribution of diazotrophs and their nitrogen fixation in the tropical and subtropical western North Pacific (2009, background): “In these regions, other nano- or picoplanktonic diazotrophs such as those reported by analysis of the nifH gene expression (Church et al. 2005; Needoba et al. 2007; Zehr et al. 2007) likely contributed to the N2 fixation.”
Seasonality of N2 fixation and nifH gene diversity in the Gulf of Aqaba (Red Sea) (2009, methodology): “Our initial conclusion was that at such low rates, it would be better to increase the incubation volume to 4.5 liters and the incubation time to 48 h, as others have used these conditions in similar field experiments (Montoya et al. 2004; Needoba et al. 2007; Zehr et al. 2007).”
Environmental control of open‐ocean phytoplankton groups: Now and in the future (2010, background): “Despite this, recent evidence indicates the presence of previously unrecognized N2 fixers in cooler waters, such as the central gyre, as far north as 40uN, although rates of N2 fixation here seem to be relatively modest (Needoba et al. 2007; Rees et al. 2009).”
Phosphate availability and the ultimate control of new nitrogen input by nitrogen fixation in the tropical Pacific Ocean (2007, background): “05 nmol N L−1 d−1 measured in oligotrophic waters of the NP Ocean where water temperatures are typically below 20–25 C (Needoba et al., 2007).”