Regional distributions of nitrogen-fixing bacteria in the Pacific Ocean

  title={Regional distributions of nitrogen-fixing bacteria in the Pacific Ocean},
  author={Matthew Church and Karin M. Bj{\"o}rkman and David M. Karl and Mak A. Saito and Jonathan P. Zehr},
We evaluated the regional distributions of six nitrogen (N2)-fixing bacteria in the North Pacific Ocean using quantitative polymerase chain reaction amplification of planktonic nifH genes. Samples were collected on four oceanographic research cruises between March 2002 and May 2005 that spanned a latitudinal range from 12uS and 54uN between 152uW and 170uW. Samples were collected throughout the upper ocean (,200 m) in the northern regions of the South Pacific Subtropical Gyre (SPSG), equatorial… CONTINUE READING
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