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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Polyphenols, Including the New Peapolyphenols A-C, from Pea Root Exudates Stimulate Orobanche foetida Seed Germination
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Polyphenols, Including the New Peapolyphenols A-C, from Pea Root Exudates Stimulate Orobanche foetida Seed Germination

机译：豌豆根分泌物中的多酚，包括新的多酚A-C，可刺激Orobanche foetida种子萌发

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摘要

Three new polyphenols, named peapolyphenols A-C, together with an already well-known polyphenol and a chalcone (1-(2,4-dihydroxyphenyl)-3-hydroxy-3-(4-hydroxyphenyl)-1-propanone and 1-(2,4-dihydroxyphenyl)-3-(4-methoxyphenyl)propenone) were isolated from pea root exudates. They were found to strongly stimulate Orobanche and Phelipanche species seed germination. Interestingly, only peapolyphenol A, 1,3,3-substltuted propanone, and 1,3-disubstituted propenone had specific stimulatory activity on O. foetida, excluding any other Orobanche or Phelipanche species tested. This species specificity is relevant, as O. foetida does not respond to the synthetic strigolactone analogue GR24, commonly used as a standard for germination assays. As characterized by spectroscopic methods, peapolyphenols A-C proved to be differently functionalized polyphenols with hydroxy and methoxy groups on both the aromatic rings and the propyl chain.
机译：三种新的多酚，称为豌豆多酚AC，以及一个众所周知的多酚和查尔酮（1-（2,4-二羟基苯基）-3-羟基-3-（4-羟基苯基）-1-丙酮和1-（2从豌豆根分泌物中分离出（4-二羟基苯基）-3-（4-甲氧基苯基）丙烯酮）。发现它们强烈刺激Orobanche和Phelipanche物种的种子发芽。有趣的是，只有豌豆多酚A，被1,3,3-取代的丙酮和1,3-二取代的丙酮具有对O. foetida的特异性刺激活性，但其他Orobanche或Phelipanche菌种除外。该物种的特异性是相关的，因为foet foetida对通常用作发芽试验标准的合成的strigolactone类似物GR24不响应。如通过光谱法表征的，证明豌豆多酚A-C是在芳族环和丙基链上均具有羟基和甲氧基的不同官能化的多酚。

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