Physiological and biochemical responses involved in vegetative desiccation tolerance of resurrection plant Selaginella brachystachya.

ABSTRACT: The vegetative desiccation tolerance of Selaginella brachystachya has been evaluated for its ability to revive from a desiccation (air dry) state and start normal functioning when rehydrated. In this study, S. brachystachya was identified by DNA barcoding. Experiments were conducted using the detached hydrated, desiccated and rehydrated fronds under laboratory conditions to understand the mechanism of revival upon the water availability. Scanning Electron Microscope images during desiccation showed closed stomata and inside curled leaves. Chlorophyll concentration decreased by 1.1 fold in desiccated state and recovered completely upon rehydration. However, the total carotenoid content decreased 4.5 fold while the anthocyanin concentration increased 5.98 fold and the CO_2<

SUBMITTER: Neeragunda Shivaraj Y 

PROVIDER: S-EPMC7897589 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature