Structure-activity relationship of naturally occurring strigolactones in Orobanche minor seed germination stimulation
Structure-activity relationship of naturally occurring strigolactones in Orobanche minor seed germination stimulation
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DOI：
10.1584/jpestics.g10-17
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发表时间：
2010-01-01
影响因子：
2.4
通讯作者：
Yoneyama, Koichi
中科院分区：
文献类型：
--
作者：
Kim, Hyun Il;Xie, Xiaonan;Yoneyama, Koichi
研究了11种天然独脚金内酯（SLs）对根寄生植物小圆果（orobche minor Sm）种子的促萌发活性。根据其活性，特殊语言可以分为3类（A-C）。A组是最活跃的萌发刺激剂，由3个单羟基- sls、orobancho、2'-epiorobancho和sorgomol组成，在晚上10点诱导O. minor种子萌发率达到80%。B组包括5个SLs，活性比A组低10倍左右。C组中活性最低的3个SLs要么比A组和B组的SLs亲脂性更强，要么可能比A组和B组的SLs更不稳定。这些结果表明SLs的促萌发活性取决于SLs分子的亲脂性，其稳定性也影响其活性。还讨论了刺激萌发活性的其他结构特征。(C)日本农药科学学会
Eleven naturally occurring strigolactones (SLs) were examined for their germination-stimulating activity on the seeds of a root parasitic plant Orobanche minor Sm. Based on their activity, SLs are classified into 3 groups (A-C). Group A, the most active germination stimulant, consists of 3 monohydroxy-SLs, orobanchol, 2'-epiorobanchol, and sorgomol, inducing >80% germination of O. minor seeds at 10 pM. Group B includes 5 SLs, which were ca. 10-fold less active than those in group A. The 3 least active SLs in group C were either more lipophilic or probably less stable than SLs in groups A and B. These results indicate that the germination-stimulating activity of SLs depends on the lipophilicity of the SL molecules and their stability also influences activity. Other structural features for germination-stimulating activity are also discussed. (C) Pesticide Science Society of Japan