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DYNAMIC CHANGES OF CARBONITRIDE DURING DEVELOPMENT OF LITCHI (LITCHI CHINENSIS SONN.)PISTIL AND STAMEN

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
Issue:
1
DOI:
10.3321/j.issn:1006-687X.2002.01.005
Key Word:
荔枝;花器官;性别决定;碳氮比;氨基酸

Abstract: 比较分析了荔枝花性决定中碳氮化合物的动态变化,结果发现:C/N较大有利于雄蕊分化,反之则有利于雌蕊分化;氨基酸含量较高有利于雌蕊分化,雄蕊的氨基酸含量仅为雌蕊的一半;脯氨酸与花粉育性存在着密切相关关系.另外,探讨了雌蕊或雄蕊败育的生理意义,在长期的进化中,败育的雌蕊或雄蕊"废物"重新被利用,为同一花中迅速发育的雌蕊或雄蕊提供能量和物质的需求. 表5 参13

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