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单词 Sorgolactone
释义

Sorgolactone

英语百科

Strigolactone

(重定向自Sorgolactone)
General chemical structure and numbering scheme of strigolactones

Strigolactones are plant hormones that stimulate the branching and growth of symbiotic arbuscular mycorrhizal fungi, increasing the probability of contact and establishment of a symbiotic association between the plant and fungus. Strigolactones also inhibit plant shoot branching, and trigger germination of parasitic plant seeds (for example Striga, from which they gained their name). Strigolactones are carotenoid-derived and contain a labile ether bond that is easily hydrolyzed in the rhizosphere, meaning that there is a large concentration gradient between areas near the root and those further away. In 2009, strigolactone biosynthesis was found to be DWARF27-dependent.

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