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Two farnesyl pyrophosphate synthases,ghfps1–2,in Gossypium hirsutum are involved in the biosynthesis of farnesol to attract parasitoid wasps

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Journal of Integrative Agriculture 2020年第9期19卷 2274-2285页

作者： ZHANG Hong HUANG Xin-zheng JING Wei-xia LIU Dan-feng Khalid Hussain DHILOO HAO Zhi-min ZHANG Yong-jun Key Laboratory of Hebei Province for Molecular Plant-Microbe Interaction College of Life SciencesHebei Agricultural UniversityBaoding 071000P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Department of Entomology Faculty of Crop ProtectionSindh Agriculture UniversityTandojamHyderabad 70060Pakistan

Sesquiterpenoids play an import role in the direct or indirect defense of *** pyrophosphate synthases(FPSs)catalyze the biosynthesis of farnesyl pyrophosphate,which is a key precursor of farnesol and(E)-β-*** the current study,two FPS genes in Gossypium hirsutum,ghfps1 and ghfps2,were heterologously cloned and functionally characterized in a greenhouse *** open reading frames for full-length ghfps1 and ghfps2 were each 1029 nucleotides,and encoded two proteins of 342 amino acids with molecular weights of 39.4 *** deduced amino acid sequences of ghfps1–2 showed high identity to FPSs of other *** real-time PCR analysis revealed that ghfps1 and ghfps2 were highly expressed in *** leaves,and were upregulated in methyl jasmonate(MeJA)-,methyl salicylate(MeSA)-and aphid infestation-treated cotton *** recombinant proteins of either ghfps1 or ghfps2 plus calf intestinal alkaline phosphatase could convert geranyl diphosphate(GPP)or isopentenyl diphosphate(IPP)to one major product,***,in electrophysiological response and Y-tube olfactometer assays,farnesol showed obvious attractiveness to female Aphidius gifuensis,which is an important parasitic wasp of *** findings suggest that two ghfpss are involved in farnesol biosynthesis and they play a crucial role in indirect defense of cotton against aphid infestation.

关键词： Gossypium hirsutum farnesyl pyrophosphate synthase ghfps1-2 biosynthesis of farnesol Aphidius gifuensis behavioral orientation

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