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中文摘要：
为探讨花生果针向地性及荚果发育调控机理,对黑暗和机械刺激条件下果针中不同植物激素的含量及变化趋势进行了测定。结果显示,不同刺激条件下果针中IAA的含量没有显著差异;而GA、ABA及BR含量在黑暗结合刺激及自然生长延伸入土后的果针中均有所降低,在单一黑暗或机械刺激条件下与对照（悬空自然生长的果针）之间没有显著差异。研究表明,生长中的果针通过对外界不同环境的响应,进而调控果针中激素代谢,并通过影响相关信号转导途径,调控花生果针尖端子房的膨大和荚果的发育。本研究为深入解析花生果针及荚果发育内在机制、培育花生新种质提供了理论指导。
英文摘要：
In this study, the contents of different phytohormones, such as IAA, GA, ABA and BR in gynophore were measured and their trends variation were examined under dark and mechanical stimulation condition. The results showed that there was almost no significant difference of IAA content in gynophore under different growth conditions, while the content of GA, ABA and BR decreased under aerially grown or mechanical stimulation combined with dark conditon. These results indicated that the gynophore could respond to different environmental conditions by regulating the metabolism of phytohormones and their related signal transduction pathways, wich further controlled the process of geocarpy. This research will assist our understanding of the internal mechanisms of gynophore development of peanut, and the breeding in improving the varieties and qualities of crops.
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