Herbivore-responsive cotton phenolics and their impact on insect performance and biochemistry

Dixit, Gaurav; Praveen, Ashish; Tripathi, Tusha; Yadav, Vikash Kumar; Verma, Praveen Chandra

doi:10.1016/j.aspen.2017.02.002

Cited by 59 publications

(29 citation statements)

References 33 publications

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“…Butter et al (1992) identified that cultivars with greater total phenolic and tannin contents in leaves support fewer whitefly eggs. Dixit et al (2017) reported that phenolics accumulation upon insect infestation varied in cotton genotypes. Phenols are kinds of plant secondary metabolites involved in plant defence against insects (War et al 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Phenols are kinds of plant secondary metabolites involved in plant defence against insects (War et al 2012). They either directly affect insect growth and development or indirectly by acting as oviposition deterrents (Dixit et al 2017). However, these results are in contradiction with Acharya and Singh (2008) who reported non-significant negative correlation of total phenol and tannin with the whitefly population.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

et al. 2021

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Background Sucking insect pests cause severe damage to cotton crop production. The development of insect resistant cotton cultivars is one of the most effective measures in curtailing the yield losses. Considering the role of morphological and biochemical host plant resistance (HPR) traits in plant defense, 12 cotton genotypes/varieties were evaluated for leaf area, leaf glanding, total soluble sugars, total soluble proteins, total phenolics, tannin and total flavonoids against fluctuating populations of whitefly, thrips and jassid under field conditions. Results The population of these insects fluctuated during the growing season and remained above threshold level (whitefly > 5, thrips > (8–10), or jassid > 1 per leaf) during late June and early July. Strong and negative association of whitefly (r = − 0.825) and jassid (r = − 0.929) with seed cotton yield was observed. Mean population of insects were the highest in Glandless-1 followed by NIA-82 and NIA-M30. NIAB-Kiran followed by NIAB-878 and Sadori were the most resistant, with the mean population of 1.41, 1.60, 1.66 (whitefly); 2.24, 2.32, 2.53 (thrips) and 0.37, 0.31, 0.36 (jassid), respectively. The resistant variety NIAB-Kiran showed less soluble sugars (8.54 mg·g− 1), soluble proteins (27.11 mg·g− 1) and more phenolic (36.56 mg·g− 1) and flavonoids (13.10 mg·g− 1) as compared with the susceptible check Glandless-1. Moreover, all insect populations were positively correlated with total soluble sugars and proteins. Whitefly populations exhibited negative response to leaf gossypol glands, total phenolics, tannins and flavonoids. The thrips and jassid populations had a significant and negative correlation with these four biochemical HPR traits. Conclusion The identified resistant resources and HPR traits can be deployed against sucking insect pests’ complex in future breeding programs of developing insect resistant cotton varieties.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

et al. 2021

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“…These pathways produce massive plant secondary metabolites to reduce the development and survival of herbivores (Zavala et al, 2004;Howe et al, 2008). For example, the "mustard oil bomb" compound released in brassicaceous plants after herbivorous insect damage exhibits direct toxicity to insects and/or acts as a feeding deterrent (Hopkins et al,2009;Müller et al, 2010;Dixit et al, 2017). Additionally, the concentrations of certain plant secondary metabolites increase in response to herbivory, as reported in cotton, tomato, and coffee, to inhibit herbivorous insect growth and development (Balkema et al, 2003;Magalhães et al, 2008;Bhonwong et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

New Insights Into the Biological Interaction Between Unripe Citrus Fruits and the Tephritid Fly Bactrocera Minax Based on Omics

Zhang¹,

Xu²,

Wang³

et al. 2021

Preprint

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The adaptation of phytophagous insects to host defence is an important aspect of plant-insect interactions. The reciprocal adaptability between specialist insects and their hosts have been adequately explored; however, the mechanisms underlying the adaptation of tephritid fruit fly specialists, a group of notorious pests worldwide, to unripen host fruits remain elusive. Here, plant metabolomes and insect transcriptomes were analysed for the first time to explore the interaction between unripe citrus fruits and the Chinese citrus fly Bactrocera minax. Seventeen citrus secondary metabolites, mainly flavones, alkaloids and phenylpropanoids, were identified in the unripe citrus fruit metabolome and they accumulated during larval feeding. Three detoxification genes (1 P450 gene, 2 ABCs genes) were highly expressed in B. minax larvae collected from unripe citrus fruits compared with the ones fed on artificial diets and ripe citrus fruits. Based on omics data, a novel ABC gene was screened through plant allelopathy tests and the gene was significantly upregulated in B. minax larvae treated with defensive secondary metabolites; additionally, the mortality rate of the larvae reached 51% after silencing the ABC gene by RNAi technique. Overall, these results shed light on the mechanisms underlying the biological interactions between tephritid fruit fly specialists and host fruits.

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“…These compounds have been associated with a broad range of applications, including antioxidants, insect repellent, and even cancer prevention (Ruiz et al, 2010, Vazhappilly et al, 2017. Flavonols are the most abundant group of flavonoids, and several biological properties have been attributed to these compounds, such as regulation of auxin transport, modulation of flower color, protection from UV radiation, prevention against microorganisms and pest invasions, and signaling interactions with insects and microbes (Nenaah 2013, Dixit et al, 2017, León-Chan et al, 2017, Vazhappilly et al, 2017. Flavonols are produced by the desaturation of dihydroflavonols.…”

Section: Introductionmentioning

confidence: 99%

Decrease of flavonol synthase enzymatic activity in Ugni molinae Turcz due to the domestication process

Chacón-Fuentes

Mutis

Bardehle

et al. 2019

Ciencia e investigación agraria

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M. Chacón-Fuentes, A. Mutis, L. Bardehle, I. Seguel, A. Urzúa, and A. Quiroz. 2019. Decrease of flavonol synthase enzymatic activity in Ugni molinae Turcz due to the domestication process. Cien. Inv. Agr. 46(1): 30-39. Flavonoid biosynthesis may be affected by plant domestication, with flavonoid production being reduced in proportion to the degree of domestication. In this context, kaempferol (3,4´,5,7-tetrahydroxyflavone) has been identified in the leaves of wild and cultivated Ugni molinae, a berry endemic to Chile. The biosynthetic pathway of kaempferol production begins with naringenin (4´,5,7-trihydroxyflavanone), which is converted to dihydrokaempferol (3,4´,5,7-tetrahydroxyflavanone), catalyzed by flavanone 3ß-hydroxylase (FHT) and then converted to kaempferol by a bifunctional enzyme called flavonol synthase (FLS). Therefore, our study aims to evaluate how FLS activity is affected in murtilla plants that are subjected to the domestication process. Kaempferol was quantified from methanolic extracts of leaf samples collected from both cultivated and wild U. molinae plants using high-performance liquid chromatography, and enzyme extraction was performed to determine FLS activity. The results showed that kaempferol concentration in wild plants from the Soloyo (0.14 μg g -1 ), Mehuín (0.18 μg g -1 ) and Queule (0.25 μg g -1 ) sampling areas was higher than in their cultivated counterparts. Our data are consistent with the FLS activity detected in samples obtained from Manzanal Alto (134.79 pKatal, Soloyo (96.48 pKatal), and Mehuín (119.97 pKatal). These samples also exhibited higher enzymatic activity than their cultivated counterparts. Together, these data suggest that FLS activity is negatively affected by the domestication process.

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Herbivore-responsive cotton phenolics and their impact on insect performance and biochemistry

Cited by 59 publications

References 33 publications

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

Evaluation of cotton germplasm for morphological and biochemical host plant resistance traits against sucking insect pests complex

New Insights Into the Biological Interaction Between Unripe Citrus Fruits and the Tephritid Fly Bactrocera Minax Based on Omics

Decrease of flavonol synthase enzymatic activity in Ugni molinae Turcz due to the domestication process

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