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Effect of phenolic acid content on acceptance of hazel cultivars by filbert aphid

机译：苯酚含量对榛子蚜虫榛子品种接受的影响

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摘要

The allelopatic effect of phenolic acids contents in the leaves of six cultivars of hazel (Corylus L.) on the choice of plants by Myzocallis coryli Goetze (filbert aphid), one of the most important pest of hazel in Poland and throughout the world, was identified. The cvs White Filbert, Mogulnus, and Luizen Zellernus were more resistant to the feeding of aphids in all the years than cvs Minnas, Barra, and Halls Giant. The highest content of total phenolic acids was reported in the leaves of cvs White Filbert and Luizen Zellernuss, with a low level of acceptance by aphids. These cultivars demonstrated a high concentration of gallic acid and caffeic acid. In the leaves of cvs Minnas and Halls Giant, much infested by aphids, the total content of phenolic acids was significantly lower. Moreover, gallic and caffeic acids occurred at significantly lower concentrations. The chromatographic analysis of hazel leaf extracts revealed the presence of eight phenolic acids: gallic, protocatechuic, p-hydroxybenzoic, salicylic, chlorogenic, ferrulic, caffeic, and alpha-resorcinolic. The leaves of the tested cultivars, irrespective of the level of resistance to filbert aphid, showed a definitely higher concentration of acids, derivatives of trans-cinnamic acid, if compared to the amount of acids - derivatives of benzoic acid.
机译：脂肪酸含量在六种榛子（Corylus L.）叶片中的作者对植物的植物植物植物（Filbert Aphid），是波兰和全世界最重要的榛子虫虫之一确定。 CVS白色氟纤维，摩瓜和Luizen Zellernus比CVS Minnas，Barra和Halls Giant在所有年内饲喂蚜虫的饲喂。在CVS白色榛子和Luizen Zellernuss的叶子中报道了总酚醛酸的最高含量，蚜虫接受较低。这些品种表现出高浓度的小酸和咖啡酸。在CVS Minnas和Halls巨头的叶子中，蚜虫的侵染，酚醛酸的总含量显着降低。此外，Gallic和Caffeic酸在显着较低的浓度下发生。榛子叶提取物的色谱分析显示出八个酚酸的存在：Gallic，Protocatechuic，P-羟基苯甲酸，水杨酸，绿原，柠檬酸，咖啡酸和α-间止蛋白。试验品种的叶子，无论与氟膜蚜虫的抗性水平如何，都显示出较高浓度的酸，反式肉桂酸的衍生物，如果与苯甲酸的酸衍生物相比。

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