Aphid-induced phytochemicals in Brassica juncea (L.) Czern & Coss. afflicting host preference and bionomics of Lipaphis erysimi (Kaltenbach)

IF 1.7 3区 农林科学 Q2 ENTOMOLOGY Journal of Applied Entomology Pub Date : 2024-02-23 DOI:10.1111/jen.13241
K. Chandrakumara, Mukesh K. Dhillon, Naveen Singh
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Abstract

Bionomics of an insect and metabolic flux of the host plant are important tools to decipher the status of plant resistance against insect species. This study illuminates vital information on aphid-induced levels of phytochemicals in the siliquae of Brassica juncea cultivars and their effect on host selection and population growth parameters of Lipaphis erysimi. The current study unveiled that the siliquae preference, intrinsic rate of increase (r), finite rate of increase (λ), gross reproductive rate (GRR) and net reproductive rate (R0) were significantly lower on Pusa Mustard 27, DRMR 150-35, RLC 3, NRCHB 101, Pusa Mustard 26 and Pusa Mustard 25. However, the mean generation time (T) and doubling time (DT) of L. erysimi were significantly longer (p < 0.001) in these genotypes. These cultivars were also found with elevated levels of aphid-induced phytochemicals and their associated enzymes, except in a few cases. Total antioxidants, ferric ion reducing antioxidant power, chlorophyll A, total chlorophyll, ascorbate oxidase (AO), catalase, phenylalanine ammonia lyase (PAL) and myrosinase were found to contribute 49.18–85.30% variation for siliquae preference and bionomics of L. erysimi on the test B. juncea cultivars. The study revealed that phenols, antioxidants, chlorophyll A, chlorophyll B, total carotenoids, AO, ascorbate peroxidase, PAL, tyrosine ammonia lyase and myrosinase had significant and negative direct consequences on the siliquae preference and bionomics, thus can be exploited as biochemical markers to identify sources of resistance against L. erysimi. Furthermore, DRMR 150-35, NRCHB 101, RLC 3, Pusa mustard 26, RH 749 and Pusa Mustard 27 were found with greater aphid-induced defence phytochemicals and detrimental effects on the host selection and bionomics of L. erysimi, thus can be deployed in Brassica improvement program.

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蚜虫诱导的甘蓝(Brassica juncea (L.) Czern & Coss.)植物化学物质对 Lipaphis erysimi (Kaltenbach) 的寄主偏好和生物组学的影响
昆虫的生物组学和寄主植物的代谢通量是解读植物抗虫性状况的重要工具。本研究揭示了甘蓝栽培品种纤毛叶中蚜虫诱导的植物化学物质水平及其对寄主选择和蚜茧蜂种群增长参数影响的重要信息。目前的研究表明,Pusa Mustard 27、DRMR 150-35、RLC 3、NRCHB 101、Pusa Mustard 26 和 Pusa Mustard 25 的纤毛虫偏好度、内在增长率(r)、有限增长率(λ)、总繁殖率(GRR)和净繁殖率(R0)显著较低。然而,在这些基因型中,L. erysimi 的平均世代时间(T)和加倍时间(DT)明显较长(p < 0.001)。除少数情况外,这些栽培品种的蚜虫诱导的植物化学物质及其相关酶的水平也有所提高。研究发现,总抗氧化剂、铁离子还原抗氧化能力、叶绿素 A、总叶绿素、抗坏血酸氧化酶(AO)、过氧化氢酶、苯丙氨酸氨裂解酶(PAL)和酪氨酸酶在蚜虫对受试君子兰栽培品种的纤毛虫偏好和仿生学方面的作用为 49.18-85.30%。研究表明,酚类、抗氧化剂、叶绿素 A、叶绿素 B、总类胡萝卜素、抗氧化剂、抗坏血酸过氧化物酶、PAL、酪氨酸氨化酶和酪氨酸酶对辣椒幼苗的喜好性和仿生学有显著的直接负面影响,因此可作为生化标记来确定辣椒的抗性来源。此外,还发现 DRMR 150-35、NRCHB 101、RLC 3、Pusa 芥 26、RH 749 和 Pusa 芥 27 具有更多的蚜虫诱导的防御性植物化学物质,对 L. erysimi 的寄主选择和生物组学具有不利影响,因此可用于甘蓝型油菜的改良计划。
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来源期刊
CiteScore
3.40
自引率
5.30%
发文量
132
审稿时长
6 months
期刊介绍: The Journal of Applied Entomology publishes original articles on current research in applied entomology, including mites and spiders in terrestrial ecosystems. Submit your next manuscript for rapid publication: the average time is currently 6 months from submission to publication. With Journal of Applied Entomology''s dynamic article-by-article publication process, Early View, fully peer-reviewed and type-set articles are published online as soon as they complete, without waiting for full issue compilation.
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