Relationship between salicylic acid and resistance to mite in strawberry

IF 2.2 4区农林科学 Q2 HORTICULTURE

Folia Horticulturae Pub Date : 2021-04-14 DOI:10.2478/fhort-2021-0008

J. T. Vilela de Resende, R. Matos, D. Zeffa, L. Constantino, S. M. Alves, M. U. Ventura, N. C. Resende, K. Youssef

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引用次数: 4

Abstract

Abstract The two-spotted spider mite (TSSM) Tetranychus urticae is a polyphagous pest which infests several wild and cultivated species of plants worldwide. To date, this mite is the most deleterious pest attacking the strawberry plant under a protected environment. Exogenously applied salicylic acid (SA) has been found to induce resistance to biotic and abiotic stresses. Morpho-anatomical changes in strawberry leaflets and TSSM preference tests were investigated in response to SA treatment. Plants grown in a greenhouse were foliar sprayed with different concentrations of SA (0 mg · L−1, 25 mg · L−1, 50 mg · L−1, 75 mg · L−1 and 100 mg · L−1). After the third application, certain parameters including the number of glandular and non-glandular trichomes, thickness of leaflet, abaxial cell wall, adaxial cell wall, palisade and lacunous parenchyma and mesophyll were measured using scanning electronic microscopy (SEM). Two-choice and non-choice assays were employed to verify the TSSM preference. Exogenous treatment with SA promoted morpho-anatomical changes in the following parameters, namely: thickness of the leaflets, mesophyll, lacunous and palisade parenchyma, cell wall (abaxial and adaxial) and the number of glandular and non-glandular trichomes in strawberry leaflets. In general, TSSM preferred less leaflets treated with SA compared with the control in a two-choice assay. A lesser number of TSSM eggs and live females were also recorded in leaflets treated with SA compared with the control plants in no-choice assays. The values of the number of eggs and live females correlated negatively with those obtained for the morpho-anatomical traits induced by exogenous SA.

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水杨酸与草莓抗螨性的关系

二斑叶螨（TSSM）是一种多食性害虫，在世界各地的几种野生和栽培植物中均有分布。到目前为止，这种螨是在受保护的环境下攻击草莓植物的最有害的害虫。外源水杨酸（SA）已被发现可诱导对生物和非生物胁迫的抗性。研究了SA处理后草莓小叶的形态解剖变化和TSSM偏好测试。对温室中生长的植物进行叶面喷施不同浓度的SA（0 mg·L−1、25 mg·L–1、50 mg·L-1、75 mg·L-1和100 mg·L‑1）。第三次施用后，使用扫描电子显微镜（SEM）测量了一些参数，包括腺毛和非腺毛的数量、小叶厚度、背轴细胞壁、正面细胞壁、栅栏和花边薄壁组织以及叶肉。采用两种选择和非选择分析来验证TSSM偏好。SA外源处理促进了以下参数的形态解剖变化，即：草莓小叶中小叶、叶肉、花边和栅栏薄壁组织的厚度、细胞壁（背面和正面）以及腺毛和非腺毛的数量。一般来说，在两种选择的测定中，与对照相比，TSSM优选用SA处理的小叶更少。在无选择测定中，与对照植物相比，用SA处理的小叶中也记录到较少数量的TSSM卵和活雌性。卵子和活雌性的数量值与外源SA诱导的形态解剖特征值呈负相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Folia Horticulturae Agricultural and Biological Sciences-Horticulture

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： Folia Horticulturae is an international, scientific journal published in English. It covers a broad research spectrum of aspects related to horticultural science that are of interest to a wide scientific community and have an impact on progress in both basic and applied research carried out with the use of horticultural crops and their products. The journal’s aim is to disseminate recent findings and serve as a forum for presenting views as well as for discussing important problems and prospects of modern horticulture, particularly in relation to sustainable production of high yield and quality of horticultural products, including their impact on human health.