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- Title
Alpha Carbonic Anhydrase 5 Mediates Stimulation of ATP Synthesis by Bicarbonate in Isolated Arabidopsis Thylakoids.
- Authors
Fedorchuk, Tatiana P.; Kireeva, Inga A.; Opanasenko, Vera K.; Terentyev, Vasily V.; Rudenko, Natalia N.; Borisova-Mubarakshina, Maria M.; Ivanov, Boris N.
- Abstract
We studied bicarbonate-induced stimulation of photophosphorylation in thylakoids isolated from leaves of Arabidopsis thaliana plants. This stimulation was not observed in thylakoids of wild-type in the presence of mafenide, a soluble carbonic anhydrase inhibitor, and was absent in thylakoids of two mutant lines lacking the gene encoding alpha carbonic anhydrase 5 (αCA5). Using mass spectrometry, we revealed the presence of αCA5 in stromal thylakoid membranes of wild-type plants. A possible mechanism of the photophosphorylation stimulation by bicarbonate that involves αCA5 is proposed.
- Subjects
CARBONIC anhydrase; THYLAKOIDS; CARBONIC anhydrase inhibitors; BICARBONATE ions; ARABIDOPSIS; PURINERGIC receptors
- Publication
Frontiers in Plant Science, 2021, Vol 12, p1
- ISSN
1664-462X
- Publication type
Article
- DOI
10.3389/fpls.2021.662082