Overexpression of MdARD4 Accelerates Fruit Ripening and Increases Cold Hardiness in Tomato.

ABSTRACT: Ethylene plays an important role in stress adaptation and fruit ripening. Acireductone dioxygenase (ARD) is pivotal for ethylene biosynthesis. However, the response of ARD to fruit ripening or cold stress is still unclear. In this study, we identified three members of Malus ARD family, and expression profile analysis revealed that the transcript level of MdARD4 was induced during apple fruit ripening and after apple plants were being treated with cold stress. To investigate its function in cold tolerance and fruit ripening, MdARD4 was ectopically expressed in Solanum lycopersicum cultivar 'Micro-Tom', which has been considered as an excellent model plant for the study of fruit ripening. At the cellular level, the MdARD protein expressed throughout Nicotiana b

SUBMITTER: Guo T 

PROVIDER: S-EPMC7503420 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature