Physiological and comparative proteomic analysis provides new insights into the effects of shade stress in maize (Zea mays L.).

ABSTRACT:

Background

Shade stress, a universal abiotic stress, suppresses plant growth and production seriously. However, little is known regarding the protein regulatory networks under shade stress. To better characterize the proteomic changes of maize leaves under shade stress, 60% shade (S) and supplementary lighting (L) on cloudy daylight from tasseling stage to physiological maturity stage were designed, the ambient sunlight treatment was used as control (CK). Isobaric tag for relative and absolute quantification (iTRAQ) technology was used to determine the proteome profiles in leaves.

Results

Shading significantly decreased the SPAD value, net photosynthetic rate, and grain yield. During two experimental years, grain yields of S were reduced by 48 and 47%, and L increased by 6 a

SUBMITTER: Gao J 

PROVIDER: S-EPMC7003340 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature