SIGN IN   Advanced Search

Browse Biotechnology
ECOLOGY: Dipping into the Rare Biosphere

Access to the article is free, however registration and sign-in are required. How can we explore the "seed-bank" of rare microbial species in marine environments? When molecular methods were introduced into microbial ecology in the mid-1980s, there were two surprises: Most DNA sequences found bore no resemblance to organisms known from cell culture, and the microorganisms that could be cultured were almost never found in molecular surveys. These findings indicated that microbial diversity is much larger than had been anticipated. It also revealed that some bacteria occur at such low abundance that molecular techniques cannot detect them. In the meantime, marine microbiology has become an extremely active and innovative field. For example, two reports by Markert et al. and Not et al., demonstrate that current molecular techniques can suggest geographic distribution and characterize the symbiotic relationships that enable organisms to survive in extreme habitats. Morever, recent advances in sequencing technology are beginning to open our eyes to the huge dimensions of the microbial diversity hidden in nature.

Rate this Resource:
1 = not useful, 5 = very useful

Please be the first to rate this resource.

View Free


Resource Type: Image, Journal article/Issue, Review
Audience Level: Undergraduate lower division 13-14, Undergraduate upper division 15-16, Graduate

Author and Copyright

Authors and Editors: Carlos Pedrós-Alió of Department of Marine Biology and Oceanography, Institut de Ciències del Mar
Publisher: AAAS
Format: text/html
Copyright and other restrictions: Yes
Cost: No


» Sign In or register to post comments.

American Association for the Advancement of Science



Triple A S National Science Foundation Naitonal Science Digital Library Pathway
Funded by the individual BEN Collaborators and grants from the
National Science Foundation [DUE 0085840 / DUE 0226185 / DUE 0532797 / DUE 0734995]

This website is a National Science Digital Library (NSDL) Pathway.
Copyright © 2019. American Association for the Advancement of Science. All Rights Reserved.