Extreme Engineering: How Antarctic Algae Adapt to Hypersalinity.

Photosynthetic organisms can be found across most environments on Earth, including the most extreme ones. The McMurdo Valleys in Antarctica are among the driest and coldest places on the planet, and lakes in that region are permanently covered by 5 m of ice (Priscu et al., 1998). Lake Bonney, one of...

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Bibliographic Details
Published in:Plant Physiology
Main Author: Julkowska, Magdalena M.
Other Authors: Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Research Center (WDRC)
Format: Article in Journal/Newspaper
Language:unknown
Published: American Society of Plant Biologists (ASPB) 2020
Subjects:
Antarctic
Bonney
Lake Bonney
Psi
Antarc*
Antarctica
Online Access:http://hdl.handle.net/10754/663275
https://doi.org/10.1104/pp.20.00467
Description
Summary:Photosynthetic organisms can be found across most environments on Earth, including the most extreme ones. The McMurdo Valleys in Antarctica are among the driest and coldest places on the planet, and lakes in that region are permanently covered by 5 m of ice (Priscu et al., 1998). Lake Bonney, one of the McMurdo lakes, is home to a single-cell algal species, Chlamydomonas sp. UWO 241, which can withstand low temperatures, salinity levels exceeding those of seawater, and low light availability caused by the permanent ice coverage. The photosynthetic machinery of this organism is unique: it does not undergo state transitions (Morgan-Kiss et al., 2002), which usually adjust the distribution of light absorption between PSI and PSII.

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