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In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size.

Publication ,  Journal Article
Lin, Y; Gazsi, K; Lance, VP; Larkin, AA; Chandler, JW; Zinser, ER; Johnson, ZI
Published in: Environmental microbiology
October 2013

In the open ocean genetically diverse clades of the unicellular cyanobacteria Prochlorococcus are biogeographically structured along environmental gradients, yet little is known about their in situ activity. To address this gap, here we use the numerically dominant Prochlorococcus clade eHL-II (eMIT9312) as a model organism to develop and apply a method to examine their in situ activity using rRNA content and cell size as metrics of cellular physiology. For two representative isolates (MIT9312 and MIT9215) rRNA cell(-1) increases linearly with specific growth rate but is anticorrelated with cell size indicated by flow cytometrically measured (SSC). Although each strain has a unique relationship between cellular rRNA (or cell size) and growth rate, both strains have the same strong positive correlation between rRNA cell(-1) SSC(-1) and growth rate. We field test this approach and observe distinct patterns of eHL-II clade specific activity (rRNA cell(-1) SSC(-1)) with depth that are consistent with patterns of photosynthetic rates. This molecular technique provides unique insight into the ecology of Prochlorococcus and could potentially be expanded to include other microbes to unravel the ecological and biogeochemical contributions of genetically distinct marine side scatter microbes.

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Published In

Environmental microbiology

DOI

EISSN

1462-2920

ISSN

1462-2912

Publication Date

October 2013

Volume

15

Issue

10

Start / End Page

2736 / 2747

Related Subject Headings

  • Temperature
  • RNA, Ribosomal
  • Prochlorococcus
  • Photosynthesis
  • Nitrites
  • Nitrates
  • Microbiology
  • Light
  • Environmental Microbiology
  • 3107 Microbiology
 

Citation

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ICMJE
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Lin, Y., Gazsi, K., Lance, V. P., Larkin, A. A., Chandler, J. W., Zinser, E. R., & Johnson, Z. I. (2013). In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size. Environmental Microbiology, 15(10), 2736–2747. https://doi.org/10.1111/1462-2920.12135
Lin, Yajuan, Katrina Gazsi, Veronica P. Lance, Alyse A. Larkin, Jeremy W. Chandler, Erik R. Zinser, and Zackary I. Johnson. “In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size.Environmental Microbiology 15, no. 10 (October 2013): 2736–47. https://doi.org/10.1111/1462-2920.12135.
Lin Y, Gazsi K, Lance VP, Larkin AA, Chandler JW, Zinser ER, et al. In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size. Environmental microbiology. 2013 Oct;15(10):2736–47.
Lin, Yajuan, et al. “In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size.Environmental Microbiology, vol. 15, no. 10, Oct. 2013, pp. 2736–47. Epmc, doi:10.1111/1462-2920.12135.
Lin Y, Gazsi K, Lance VP, Larkin AA, Chandler JW, Zinser ER, Johnson ZI. In situ activity of a dominant Prochlorococcus ecotype (eHL-II) from rRNA content and cell size. Environmental microbiology. 2013 Oct;15(10):2736–2747.
Journal cover image

Published In

Environmental microbiology

DOI

EISSN

1462-2920

ISSN

1462-2912

Publication Date

October 2013

Volume

15

Issue

10

Start / End Page

2736 / 2747

Related Subject Headings

  • Temperature
  • RNA, Ribosomal
  • Prochlorococcus
  • Photosynthesis
  • Nitrites
  • Nitrates
  • Microbiology
  • Light
  • Environmental Microbiology
  • 3107 Microbiology