Physiological and transcriptomic responses of Lanzhou Lily (Lilium davidii, var. unicolor) to cold stress.

ABSTRACT: Low temperature induces changes in plants at physiological and molecular levels, thus affecting growth and development. The Lanzhou lily (Lilium davidii, var. unicolor) is an important medicinal plant with high economic value. However, the molecular mechanisms underlying its photosynthetic and antioxidation responses to low temperature still remain poorly understood. This study subjected the Lanzhou lily to the two temperatures of 20°C (control) and 4°C (low temperature) for 24 h. Physiological parameters related to membrane integrity, photosynthesis, antioxidant system, and differentially expressed genes were investigated. Compared with control, low temperature increased the relative electrical conductivity by 43.2%, while it decreased net photosynthesis rate, ratio of variable to maximal

SUBMITTER: Tian X 

PROVIDER: S-EPMC6977731 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature