应用生态学报2012，Vol.23Issue(9)：2504-2508,5.
高温和单氰胺对油桃休眠花芽呼吸代谢的影响
Effects of high temperature and hydrogen cyanamide on dormant nectarine' s floral bud respiratory metabolism
摘要
Abstract
Taking 3-year old potted ' Shuguang' nectarine (Prunus persica var. nectariana cv. Shuguang) as test material, this paper studied the effects of high temperature (50℃ , HT) and hydrogen cyanamide (HC) on the floral bud respiratory metabolism of the tree during its natural dormancy. Both HT and HC could break the natural dormancy of the tree, and lead to a significant decrease in the respiratory metabolism of floral buds for several hours. The main respiratory pathways, tricarboxylic acid cycle (TCA) and pentose phosphate pathway (PPP) , were affected. For the buds not received dormancy-breaking treatments, both the TCA and the PPP decreased, while treating with HT and HC induced a rapid recovery of PPP after the early respiratory attenuation. HT also induced the recovery of TCA, but HC did not show this effect in 96 hours. Therefore, respiratory attenuation and the following PPP activation could be the important part in the floral bud respiratory mechanism of HT- and HC-induced dormancy release.关键词
高温/单氰胺/休眠解除/呼吸代谢/油桃/花芽Key words
high temperature/hydrogen cyanamide/dormancy release/respiratory metabolism/nectarine/floral bud分类
农业科技引用本文复制引用
谭钺,冷传远,李玲,徐臣善,陈修德,高东升..高温和单氰胺对油桃休眠花芽呼吸代谢的影响[J].应用生态学报,2012,23(9):2504-2508,5.基金项目
"十二五"国家科技支撑计划项目(2011BAD12B02)和山东省优秀中青年科学家科研奖励基金项目(BS2011NY011)资助. （2011BAD12B02）
