Proteomics reveals the effects of drought stress on the kernel development and starch formation of waxy maize.

ABSTRACT:

Background

Kernel development and starch formation are the primary determinants of maize yield and quality, which are considerably influenced by drought stress. To clarify the response of maize kernel to drought stress, we established well-watered (WW) and water-stressed (WS) conditions at 1-30 days after pollination (dap) on waxy maize (Zea mays L. sinensis Kulesh).

Results

Kernel development, starch accumulation, and activities of starch biosynthetic enzymes were significantly reduced by drought stress. The morphology of starch granules changed, whereas the grain filling rate was accelerated. A comparative proteomics approach was applied to analyze the proteome change in kernels under two treatments at 10 dap and 25 dap. Under the WS conditions, 487 and 465 differentially

SUBMITTER: Guo J 

PROVIDER: S-EPMC8461923 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature