TY  - BOOK
AU  - Xiao Wang
AU  - Jian Cai
AU  - Fulai Liu
AU  - Mei Jin
AU  - Hongxi Yu
AU  - Dong Jiang
AU  - Bernd Wollenweber
AU  - Bernd Wollenweber
AU  - Weixing Cao
TI  - Pre-anthesis high temperature acclimation alleviates the negative effects of post-anthesis heat stress on stem stored carbohydrates remobilization and grain starch accumulation in wheat
KW  - FRUCTANS
KW  - HIGH TEMPERATURE PRE-ACCLIMATION
KW  - STARCH GRANULES
KW  - WHEAT
N2  - The potential role of pre-anthesis high temperature acclimation in alleviating the negative effects of post-anthesis heat stress on stem stored carbohydrate remobilization and grain starch accumulation in wheat was investigated. The treatments included no heat-stress (CC), heat stress at pre-anthesis only (HC), heat at post-anthesis only (CH), and heat stress at both stages (HH). Post-anthesis heat stress decreased grain starch content, reduced the content of fructans and depressed activities of related synthesis enzymes of sucrose:sucrose fructosyltransferase and fructan:fructan fructosyltransferase. Interestingly, HH plants had significantly higher grain yield than the CH plants. In addition, post-anthesis high temperature lowered grain starch content and increased percentages of volume, number and surface area of B-type starch granules in CH and HH than in CC treatment. However, HH plants had much higher starch content, and caused less modified B-type starch granule size ndicators than the CH plants. Our results indicated that, compared with the non-acclimated plants, the pre-anthesis high temperature acclimation effectively enhanced carbohydrate remobilization from stems to grains, led to less changed starch content and starch granule size distribution in grains of wheat under post-anthesis heat stress
UR  - https://drive.google.com/file/d/1M81ld1JcsiTm6C8jxjIT1nKN2qrxoRWE/view?usp=drivesdk
ER  -