The role of antioxidant defense in freezing tolerance of resurrection plant Haberlea rhodopensis.

ABSTRACT: Haberlea rhodopensis Friv. is unique with its ability to survive two extreme environmental stresses-desiccation to air-dry state and subzero temperatures. In contrast to desiccation tolerance, the mechanisms of freezing tolerance of resurrection plants are scarcely investigated. In the present study, the role of antioxidant defense in the acquisition of cold acclimation and freezing tolerance in this resurrection plant was investigated comparing the results of two sets of experiments-short term freezing stress after cold acclimation in controlled conditions and long term freezing stress as a part of seasonal temperature fluctuations in an outdoor ex situ experiment. Significant enhancement in flavonoids and anthocyanin content was observed only as a result of freezing-induced desicc

SUBMITTER: Georgieva K 

PROVIDER: S-EPMC8140058 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature