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Study on function of low temperature signal on dormancy regulation in deciduous fruit trees

Study on function of low temperature signal on dormancy regulation in deciduous fruit trees
低温信号对落叶果树休眠调控作用的研究
批准号:
22380019
负责人:
SUGAYA Sumiko
金额:
$8.07万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010-04-01 至 2014-03-31

项目摘要

项目成果

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中文摘要
翻译
以日本梨为试材,研究了低温对休眠期花芽生理的影响。内休眠期低温不足,开花期花蕾败育、坏死。代谢组学分析表明,600CH和750CH的花芽代谢产物与0CH和300CH的不同。主成分分析表明,磷酸和有机酸的含量可能与冷害有关。研究了内休眠过程中糖代谢相关酶的活性,并研究了氢氰胺和硝酸钾对其影响。
英文摘要
Effects of low temperature on physiology of flower bud during dormancy period were investigated using Japanese pears. Insufficient amount of low temperature during endo-dormancy, bud abortion and necrosis were found in flowering time. Metabolome analysis indicated that metabolites in flower buds of 600CH (chilling hours) and 750CH were different from those in 0CH and 300CH. PCA analysis revealed that phosphoric acids and organic acid contents would be related to chilling. Enzyme activities involved in sugar metabolism are studied during endo-dormancy and effects of hydrogen cyanamide and potassium nitrate were investigated.
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