Low temperature and high humidity affect dynamics of chlorophyll biosynthesis and secondary metabolites in Cucumber.

ABSTRACT:

Background

During the cold season, low temperature (LT) and high relative humidity (HRH) are significant environmental factors in greenhouses and plastic tunnels, often hindering plant growth and development. The chlorophyll (Chl) biosynthesis inhibitory mechanisms under LT and HRH stress are still widely unclear. To understand how cucumbers seedlings respond to LT and HRH stress, we investigated the impact of these stressors on Chl biosynthesis.

Results

Our results revealed that individual LT, HRH and combined LT + HRH stress conditions affected chlorophyll a, b, total chlorophyll and carotenoid content, reducing the levels of these pigments. The levels of Chlorophyll precursors were also markedly reduced under LT and HRH stresses, with the greatest reduction observed in cu

SUBMITTER: Amin B 

PROVIDER: S-EPMC11441134 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature