Long-chain alkanes: allelochemicals for host location by the insect pest, Epilachna dodecastigma (Coleoptera: Coccinellidae)

Sarkar, Nilmoni; Mukherjee, Abhishek; Barik, Anandamay

doi:10.1007/s13355-013-0168-4

Cited by 40 publications

(22 citation statements)

References 35 publications

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“…These long‐chain alkanes were previously reported in P. americana cv. Hass, covering mature and senescent young leaves; they and act as oviposition cues or feeding attractants for insect herbivores …”

Section: Resultsmentioning

confidence: 99%

“…Hass, [36] [38] covering mature and senescent young leaves; they and act as oviposition cues or feeding attractants for insect herbivores. [45] Compounds of low abundance were sesquiterpenes, phenylpropanoids, sterols and monoterpenes. Estragole is a very abundant phenylpropanoid in the leaves of creole avocado trees (P. americana var.…”

Section: Chemical Compositionmentioning

confidence: 99%

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Phenotypic Variations in the Foliar Chemical Profile of Persea americana Mill. cv. Hass

García‐Rodríguez

Torres-Gurrola

Meléndez-González

et al. 2016

Chemistry & Biodiversity

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The Hass avocado tree Persea americana cv. Hass was derived from a single hybrid tree of P. americana var. drymifolia and P. americana var. guatemalensis, and it is propagated clonally by grafting. This cultivar is the most widely planted in the world but its profile of secondary metabolites has been studied rarely despite of its importance in plant protection. We illustrate the variability of the volatilome of mature leaves by describing the average chemical composition and the phenotypic variability found in 70 trees. Contrary to the uniformity expected in the Hass cultivar, high variability coefficients were found for most of the 36 detected foliar volatile compounds; furthermore we found six chemotypes grouping the foliar phenotypes of the sampled trees using hierarchical cluster analysis. About 48% of trees were grouped in one chemotype; five chemotypes grouped the remaining trees. The compounds that determined these chemotypes were: estragole, α-farnesene, β-caryophyllene, germacrene D, α-cubebene and eugenol. This striking variation in a cultivar propagated clonally is discussed in terms of somatic mutation.

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Section: Resultsmentioning

confidence: 99%

Section: Chemical Compositionmentioning

confidence: 99%

Phenotypic Variations in the Foliar Chemical Profile of Persea americana Mill. cv. Hass

García‐Rodríguez

Torres-Gurrola

Meléndez-González

et al. 2016

Chemistry & Biodiversity

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“…Alkanes used in our study ranged between n-C 10 and n-C 22 , with undecane as outstanding. Alkanes of even longer chain length are commonly present in plant and seed surface waxes, playing a role as significant attractants for plant-feeding insects (Udayagiri and Mason 1997;Sarkar et al 2013). Straight chain alcohols and aldehydes are products of lipid oxidation, caused by food degradation such as rancidification.…”

Section: Discussionmentioning

confidence: 99%

Electroantennographic responses of red flour beetle Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) to volatile organic compounds

Balakrishnan

Holighaus

Weißbecker

et al. 2016

J Applied Entomology

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The red flour beetle Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) is the most encountered and destructive stored product insect pest of cereal grains and seeds. Although this beetle has been used as a model organism for many decades, there is no systematic knowledge about antennal detection of host and non‐host volatiles. Electroantennogram responses to 94 selected volatile organic compounds including alkanes, alkenes, alcohols, aldehydes, ketones, carboxylic acids, esters, terpenoids and aromatic compounds were recorded from both sexes of T. castaneum. Overall, female and male T. castaneum exhibited similar electroantennography (EAG) responses. Compounds eliciting the strongest EAG responses within compound groups of chemical similarity were undecane, 1‐hexen‐3‐ol, octanal, 2‐heptanone, hexanoic acid and ethyl hexanoate. Comparison of vapour pressure and EAG amplitudes within homologous series of compounds revealed responses to undecane, octadecane, octanal, nonanal, 2‐heptanone, hexanoic acid and octanoic acid as outstanding. Given that systematic EAG screenings have not been conducted before, these are the best candidates for evaluation in future behavioural studies to unravel their potential for application in integrated pest management strategies of T. castaneum.

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“…Moreover, examples of epicuticular wax -herbivore interactions have been identified and characterized in Eucalyptus globulus Labill (Brennan and Weinbaum, 2001), Hordeum vulgare L. (Tsumuki et al, 1989), Sorghum bicolor (L.) Moench (Nwanze et al, 1992) and Triticum aestivum L. (Lowe et al, 1985). Most studies on plantinsect interactions have focused on chemical composition of surface waxes (Sarkar et al, 2013). There are many examples of negative associations between surface waxes and insects.…”

Section: Discussionmentioning

confidence: 99%

“…However, fossil plants which have cuticles as thick as 50 -500 μm are known (Wiśniewska et al, 2003;Wisuthiphaet et al, 2014). To understand different ecological functions of the cuticle it is important to know its chemical and physical nature (Müller and Riederer, 2005;Sarkar et al, 2013). A plant cuticle is composed of waxes dispersed on the surface of (epicuticular) and within (intracuticular) a lipophylic polymer, often composed of cutin and/or cutan and polysaccharides such as cellulose and pectins, with the latter layer often called the cuticular matrix (Buschhaus and Jetter, 2011).…”

Section: Introductionmentioning

confidence: 99%

Surface Waxes as a Plant Defense Barrier Towards Grain Aphid

Wójcicka¹

2015

Acta Biologica Cracoviensia S. Botanica

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The electrical penetration graph (EPG) method was used to quantify the effect of surface waxes on probing behaviour of the grain aphid Sitobion avenae F. (Hemiptera: Aphididae). The experiments showed that wax removal significantly affected probing behaviour of S. avenae. Generally, the aphids feeding on the plants without wax had a shortened non-probing (EPG-pattern np) and prolonged penetration of peripheral tissues -epidermis and mesophyll (EPG-pattern C). The EPG tests also showed that the three tested extracts of surface waxes from waxy plants RAH 122 were active as aphicides against the grain aphid.K Ke ey y w wo or rd ds s: Epicuticular wax, peripheral tissues, epidermis, mesophyll, triticale, Sitobion avenae, EPG, artificial diet ACTA BIOLOGICA CRACOVIENSIA Series Botanica 57/1: [95][96][97][98][99][100][101][102][103] 2015

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Long-chain alkanes: allelochemicals for host location by the insect pest, Epilachna dodecastigma (Coleoptera: Coccinellidae)

Cited by 40 publications

References 35 publications

Phenotypic Variations in the Foliar Chemical Profile of Persea americana Mill. cv. Hass

Phenotypic Variations in the Foliar Chemical Profile of Persea americana Mill. cv. Hass

Electroantennographic responses of red flour beetle Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) to volatile organic compounds

Surface Waxes as a Plant Defense Barrier Towards Grain Aphid

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