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Structural Determination of Elicitors in Sogatella Furcifera (Horváth) That Induce Japonica Rice Plant Varieties (Oryza Sativa L.) to Produce an Ovicidal Substance Against S. Furcifera Eggs

Structural Determination of Elicitors in Sogatella Furcifera (Horváth) That Induce Japonica Rice Plant Varieties (Oryza Sativa L.) to Produce an Ovicidal Substance Against S. Furcifera Eggs

Jeong-Oh Yang, Naoya Nakayama, Kyohei Toda, Shinichi Tebayashi, Chul-Sa Kim

Biosci Biotechnol Biochem. 2014;78(6):937-42.

PMID: 25036116

Abstract:

Certain Japonica rice plant varieties (Oryza sativa L.) show resistance to the eggs of the white backed planthopper (Sogatella furcifera Horváth) by the formation of watery lesions and production of benzyl benzoate, an active ovicidal compound. Benzyl benzoate results in high ovicidal activity of S. furcifera eggs and reduces egg hatchability. The production of benzyl benzoate by the rice plants is only induced by an unknown elicitor(s) from the female S. furcifera. Therefore, we tried to isolate and identify these elicitors. An active 80% MeOH extract of S. furcifera was separated on a reverse-phase ODS MPLC, and the elicitor(s) was eluted in 100% MeOH and 100% EtOH fractions. Further separation of the active 100% MeOH fraction using a HPLC led to the isolation of four active compounds. The structures of each compound were determined by using NMR, LC-MS, and GC-MS spectra. The compounds were 1,2-dilinoleoyl-sn-glycero-3-phosphocholine, 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine, 1-palmitoyl-2-oleoyl-X-glycero-3-phosphoethanolamine, and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP998061	1,2-Dilinoleoyl-sn-glycero-3-phosphocholine		998-06-1	Price

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