TGase positively regulates photosynthesis via activation of Calvin cycle enzymes in tomato.

ABSTRACT: Transglutaminases (TGases), which are widespread cross-linking enzymes in plants, play key roles in photosynthesis and abiotic/biotic stress responses; however, evidence concerning the genetics underlying how TGase improves the capability of photosynthesis and the mechanism of TGase-mediated photosynthesis are not clear in this crop species. In this study, we clarified the function of TGase in the regulation of photosynthesis in tomato by comparing wild-type (WT) plants, tgase mutants generated by the CRISPR/Cas9 system and TGase-overexpressing (TGaseOE) plants. Our results showed that increasing the transcript level of TGase resulted in an enhanced net photosynthetic rate (Pn), whereas the tgase mutants presented significantly inhibited Pns and CO2 assimilation compared with the WT. Altho

SUBMITTER: Zhong M 

PROVIDER: S-EPMC6804539 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature