Phenolic characterization of olive genotypes potentially resistant to Xylella

IF 2.6 3区生物学 Q2 PLANT SCIENCES

Journal of Plant Interactions Pub Date : 2022-03-14 DOI:10.1080/17429145.2022.2049381

M. Vergine, S. Pavan, C. Negro, Francesca Nicolì, David Greco, Erika Sabella, Alessio Aprile, L. Ricciardi, L. De Bellis, A. Luvisi

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引用次数: 3

Abstract

ABSTRACT The outbreak of the olive quick decline syndrome caused by Xylella fastidiosa represents one of the main agricultural threats in Italy. Recently, thirty asymptomatic or paucisymptomatic genotypes found in olive groves heavily compromised by the bacterium were identified. HPLC ESI/MS-TOF analyses on leaf petiole extract were carried out to characterize the metabolic profile of selected genotypes. Besides uni- and multi-variate statistical methods differentiated the metabolic profiles of olive genotypes genetically related to the cultivars ‘Leccino’ and ‘Ciciulara’, no common metabolic pattern was found among the selected genotypes with respect to susceptible one. In-depth evaluation of seven selected phenolic compounds highlighted quantitative differences between genotypes and the susceptible control cultivar but a resistance-related pattern cannot be yet defind. Nevertheless, an unusually high concentration of quercetin-3-O-rhamnoside characterized a genotype genetically related to Tunisian cultivars which displayed no symptoms besides high bacterial concentration, suggesting how tolerance may be related to peculiar phenolic profiles.

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对木霉菌具有潜在抗性的橄榄基因型的酚类特征

摘要：由木霉菌引起的橄榄快速衰退综合征的爆发是意大利农业面临的主要威胁之一。最近，在受到该细菌严重危害的橄榄林中发现了30种无症状或无症状的基因型。对叶柄提取物进行HPLC ESI/MS-TOF分析，以表征所选基因型的代谢谱。除了用单变量和多变量统计方法区分与品种“Leccino”和“Ciciulara”遗传相关的橄榄基因型的代谢谱外，所选基因型与易感基因型之间没有发现共同的代谢模式。对七种选定酚类化合物的深入评估突出了基因型和易感对照品种之间的数量差异，但还不能确定与抗性相关的模式。然而，异常高浓度的槲皮素-3-O-鼠李糖苷具有与突尼斯品种遗传相关的基因型特征，该基因型除了高细菌浓度外没有表现出任何症状，这表明耐受性可能与特殊的酚类特征有关。

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来源期刊

Journal of Plant Interactions PLANT SCIENCES-

CiteScore

5.30

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Plant Interactions aims to represent a common platform for those scientists interested in publishing and reading research articles in the field of plant interactions and will cover most plant interactions with the surrounding environment.