Metabolic Capacity of the Antarctic Cyanobacterium Phormidium pseudopriestleyi That Sustains Oxygenic Photosynthesis in the Presence of Hydrogen Sulfide.

• Main Authors: Lumian, Jessica E, Jungblut, Anne D, Dillion, Megan L, Hawes, Ian, Doran, Peter T, Mackey, Tyler J, Dick, Gregory J, Grettenberger, Christen L, Sumner, Dawn Y
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: eScholarship, University of California 2021
• Subjects: Antarctica; cryosphere; cyanobacteria; genomics; lake; photosynthesis; sulfide; Genetics; Antarctic; Fryxell; Lake Fryxell; The Antarctic; Antarc*
• Online Access: https://escholarship.org/uc/item/94h0p69v

Sulfide inhibits oxygenic photosynthesis by blocking electron transfer between H2O and the oxygen-evolving complex in the D1 protein of Photosystem II. The ability of cyanobacteria to counter this effect has implications for understanding the productivity of benthic microbial mats in sulfidic enviro...