Physiological and proteomic analyses revealed the response mechanisms of two different drought-resistant maize varieties.

ABSTRACT:

Background

Drought stress severely limits maize seedling growth and crop yield. Previous studies have elucidated the mechanisms by which maize acquires drought resistance and contends with water deficiency. However, the link between the physiological and molecular variations among maize cultivars are unknown. Here, physiological and proteomic analyses were conducted to compare the stress responses of two maize cultivars with contrasting drought stress tolerance.

Results

The physiological analysis showed that the drought-tolerant SD609 maize variety maintains relatively high photochemical efficiency by enhancing its protective cyclic electron flow (CEF) mechanism and antioxidative enzymes activities. Proteomics analysis revealed that 198 and 102 proteins were differentially e

SUBMITTER: Li H 

PROVIDER: S-EPMC8567644 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature