A new lead chemical for strigolactone biosynthesis inhibitors.
A new lead chemical for strigolactone biosynthesis inhibitors.
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DOI:
10.1093/pcp/pcq077
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发表时间:
2010-07
影响因子:
4.9
通讯作者:
Asami T
中科院分区:
文献类型:
--
作者:
Ito S;Kitahata N;Umehara M;Hanada A;Kato A;Ueno K;Mashiguchi K;Kyozuka J;Yoneyama K;Yamaguchi S;Asami T
Several triazole-containing chemicals have previously been shown to act as efficient inhibitors of cytochrome P450 monooxygenases. To discover a strigolactone biosynthesis inhibitor, we screened a chemical library of triazole derivatives to find chemicals that induce tiller bud outgrowth of rice seedlings. We discovered a triazole-type chemical, TIS13 [2,2-dimethyl-7-phenoxy-4-(1H-1,2,4-triazol-1-yl)heptan-3-ol], which induced outgrowth of second tiller buds of wild-type seedlings, as observed for non-treated strigolactone-deficient d10 mutant seedlings. TIS13 treatment reduced strigolactone levels in both roots and root exudates in a concentration-dependent manner. Co-application of GR24, a synthetic strigolactone, with TIS13 canceled the TIS13-induced tiller bud outgrowth. Taken together, these results indicate that TIS13 inhibits strigolactone biosynthesis in rice seedlings. We propose that TIS13 is a new lead compound for the development of specific strigolactone biosynthesis inhibitors.
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影响因子:
7.4
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通讯作者:
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