Cryptic photosynthesis--extrasolar planetary oxygen without a surface biological signature.

  title={Cryptic photosynthesis--extrasolar planetary oxygen without a surface biological signature.},
  author={Charles S. Cockell and Lisa Kaltenegger and John A Raven},
  volume={9 7},
On Earth, photosynthetic organisms are responsible for the production of virtually all the oxygen in the atmosphere. On land, vegetation reflects in the visible and leads to a "red edge," which developed about 450 million years ago on Earth and has been proposed as a biosignature for life on extrasolar planets. However, in many regions on Earth, particularly where surface conditions are extreme--in hot and cold deserts, for example--photosynthetic organisms can be driven into and under… CONTINUE READING

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Primary production in the deep chlorophyll maximum of the central North Sea

  • K. Weston, L. Fernand, D. K. Mills, R. Delahunty, J. Brown
  • Journal of Plankton
  • 2005
Highly Influential
8 Excerpts

The contributions of sea ice algae to Antarctic primary production

  • M. P. Lizotte
  • American Zoologist
  • 2001
Highly Influential
5 Excerpts

Assessing the magnitude and significance of deep chlorophyll maxima in the coastal eastern Indian Ocean

  • Hanson, C.E, S. Pesant, A. M. Waite, C. B. Pattiaratchi
  • 2007
Highly Influential
5 Excerpts

Photosynthesis of cryptobiotic crusts in a seasonally

  • W. N. Brostoff, M. R. Sharifi, P. W. Rundel
  • 2002
Highly Influential
4 Excerpts

Plankton productivity and biomass in the western equatorial Pacific: Biological and physical

  • D. J. MacKey, J. Parslow, H. W. Higgins, F. B. Griffiths, J. E. O’Sullivan
  • 1997
Highly Influential
5 Excerpts

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