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ID 48697
FullText URL
Author
Enami, Isao
Adachi, Hideyuki
Abstract
In this chapter, we describe the mechanisms of acido-tolerance in an acidophilic- and thermophilic red alga, Cyanidium caldarium. In spite of the extremely acidic environments it inhabits, the intracellular pH of Cyanidium cells is kept neutral by pumping out the protons previously leaked into the cells according to the steep pH gradient. The H+ pump is driven by the plasma membrane ATPase, utilizing intracellular ATP produced by both oxidative phosphorylation and cyclic photophosphorylation via photosystem I. We also describe the characteristics and function of the two photosystems, Photosystem I (PSI) and II (PSII), in Cyanidium caldarium in comparison with those of cyanobacteria, other eukaryotic algae, and higher plants, based on the crystal structures of the two complexes reported so far.
Published Date
2010
Publication Title
Red Algae in the Genomic Age
Volume
volume13
Publisher
Springer
Start Page
373
End Page
389
Content Type
Journal Article
Project
Research Center of New Functional Materials for Energy Production, Storage, and Transport
Official Url
http://www.springerlink.com/content/r38165252gw77206/
language
英語
Copyright Holders
© Springer
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author
Refereed
True
DOI