Alternative transcriptional initiation of OsβCA1 produces three distinct subcellular localization isoforms involved in stomatal response regulation and photosynthesis in rice.

Abstract excerpt

Plants adjust the size of their stomatal openings to balance CO2 intake and water loss. Carbonic anhydrases (CAs) facilitate the conversion between CO2 and HCO3 -, and the OsβCA1 mutant in rice (Oryza sativa) shows similar traits in carbon fixation and stomatal response to CO2 as the dual βCA mutants in Arabidopsis thaliana. However, the exact role of OsβCA1 in these processes was unclear. We used gene editing,...

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