Physiological and Expressional Regulation on Photosynthesis, Starch and Sucrose Metabolism Response to Waterlogging Stress in Peanut

• DOI: 10.3389/fpls.2021.601771
• Publication Date: 2021-07-02T05:55:16Z
• Authors: Ruier Zeng; Tingting Chen; Xinyue Wang; Jing Cao; Xi Li; Xueyu Xu; Lei Chen; Qing Xia; Yonglong Dong; Luping Huang; Leidi Wang; Jialei Zhang; Lei Zhang
• Keywords: Waterlogging (archaeology); Dry weight; Carbohydrate Metabolism

Waterlogging has negative effects on crop yield. Physiological and transcriptome data of two peanut cultivars [Zhongkaihua 1 (ZKH 1) Huayu 39 (HY 39)] were studied under normal water supply waterlogging stress for 5 or 10 days at the flowering stage. The results showed that main stem height, number lateral branches, branch length, diameter increased stress, followed by an increase in dry matter accumulation, which was correlated with soil plant analysis development (SPAD) net photosynthetic rate (Pn) upregulation genes related to porphyrin chlorophyll metabolism photosynthesis. However, imbalance source-sink relationship cause yield loss, caused sucrose soluble sugar contents a decrease starch content; it also decreased activities synthetase (SS) phosphate (SPS), may be due changes expression metabolism. led accumulation photosynthate stems leaves, resulted ratio pod weight total (PDW/TDW) Compared ZKH 1, PDW HY more probably because accumulated leaves could not effectively transported pod.