Involvement of CsERF2 in leaf variegation of Cymbidium sinense 'Dharma'.

ABSTRACT:

Main conclusion

CsERF2, an ethylene response factor, plays a role in leaf variegation. Leaf variegation is a main ornamental characteristic in Cymbidium sinense (C. sinense). However, the mechanisms of leaf color variegation remain largely unclear. In the present study, we analyzed the cytological and physiological features, as well as molecular analyses of leaves from wild-type (WT) and leaf variegation mutants of Cymbidium sinense 'Dharma'. Chloroplasts with typical and functional structures were discovered in WT and green sectors of the mutants leaves (MG), but not in yellow sectors of the mutant leaves (MY). The activities of key enzymes involved in chlorophyll (Chl) degradation and their substrate contents were significantly increased in MY. Genes related to Chl degradation al

SUBMITTER: Gao J 

PROVIDER: S-EPMC7387381 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature