Volatiles emitted by different cotton varieties damaged by feeding beet armyworm larvae

Loughrin, John H.; Manukian, Ara; Heath, Robert R.; Tumlinson, James H.

doi:10.1007/bf02228321

Cited by 260 publications

(167 citation statements)

References 19 publications

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“…However, genotype specific differences in volatile emissions from undamaged plants have been found in potato (Wang and Kays 2002), rice (Rapusas et al 1996), cotton (Elzen et al 1986) and pear (Scutareanu et al 2003). A high genetic variability in volatile emissions from herbivore-damaged plants has also been shown in cotton (Loughrin et al 1995) and maize (Degen et al 2004;Gouinguené et al 2001). In other plant-herbivore systems, various organic compounds produced in response to plant damage have been shown to affect plant defence and plant gene expression in neighbouring plants, deterring herbivores and attracting their natural enemies (Dicke et al 2003;Baldwin et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth

Ninkovic

Åhman

2009

Euphytica

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Section: Discussionmentioning

confidence: 99%

Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth

Ninkovic

Åhman

2009

Euphytica

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“…However, the present study also indicated that a single, relatively ubiquitous HIPV can be attractive to A. iole and can lead to increased parasitism. The green-leaf volatile, (Z)-3-hexenyl acetate; the sesquiterpene, α-farnesene; and the carboxylate ester, methyl salicylate, are all produced and released by plants in response to injury by Lygus species (Rodriguez-Saona et al 2002;Blackmer et al 2004;Williams et al 2005) and by other herbivores (Turlings et al 1991;Loughrin et al 1995;Röse et al 1996;Paré and Tumlinson 1998). Thus, it appears that A. iole can use either host-specific or general volatile cues in the process of host habitat location.…”

Section: Discussionmentioning

confidence: 99%

EAG-Active Herbivore-Induced Plant Volatiles Modify Behavioral Responses and Host Attack by An Egg Parasitoid

et al. 2008

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Volatiles emitted by plants in response to feeding by Lygus species were tested in neurophysiological, behavioral, and parasitism trials with Anaphes iole, an egg parasitoid of Lygus. Electroantennogram analyses indicated that A. iole antennae responded to most herbivore-induced plant volatiles (HIPVs) tested and that females were usually more responsive than males. Antennal responses to (Z)-3-hexenyl acetate and methyl salicylate were among the strongest. Behavioral assays in a four-arm olfactometer demonstrated that response of female wasps to (Z)-3-hexenyl acetate varied greatly depending on preconditioning regime. Preconditioning wasps to complex host-plant odors led to stronger preference than did a single preconditioning stimulus, i.e., (Z)-3-hexenyl acetate. In a horizontal wind tunnel, female wasps were attracted by methyl salicylate and α-farnesene. Parasitism of Lygus lineolaris eggs by A. iole in a cotton field was greater when the eggs were associated with (Z)-3-hexenyl acetate or α-farnesene than with controls. Overall, the results of this study show that A. iole can perceive a variety of plant volatiles released after its host damages plants, that the degree of associative learning in A. iole can be manipulated based on preconditioning regime, and that single synthetic HIPVs are attractive to A. iole and can be used to increase attack rates on host eggs. Therefore, it appears that HIPVs have potential for use in suppression of Lygus population densities.

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“…Intraspecific variation of herbivore-induced volatile emissions has been reported primarily from varieties of cultivated plants (Loughrin et al, 1995;Geervliet et al, 1997;Gouinguene et al, 2001;Degen et al, 2004;Lou et al, 2006) but has been the subject of only a few investigations of wild species such as solanaceous plants (Halitschke et al, 2000;Glawe et al, 2003;Hare, 2007;Delphia et al, 2009) and teosinte (Gouinguene et al, 2001). In this study, we conducted a survey of 27 Arabidopsis accessions for volatiles released upon treatment with coronalon, a synthetic mimic of octadecanoid plant hormones that induces volatile blends similar to those emitted upon insect feeding (Schuler et al, 2001;Herde et al, 2008).…”

Section: Elicitor-and Insect-induced Volatile Emissions Vary Among Armentioning

confidence: 99%

Variation of Herbivore-Induced Volatile Terpenes among Arabidopsis Ecotypes Depends on Allelic Differences and Subcellular Targeting of Two Terpene Synthases, TPS02 and TPS03

et al. 2010

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When attacked by insects, plants release mixtures of volatile compounds that are beneficial for direct or indirect defense. Natural variation of volatile emissions frequently occurs between and within plant species, but knowledge of the underlying molecular mechanisms is limited. We investigated intraspecific differences of volatile emissions induced from rosette leaves of 27 accessions of Arabidopsis (Arabidopsis thaliana) upon treatment with coronalon, a jasmonate mimic eliciting responses similar to those caused by insect feeding. Quantitative variation was found for the emission of the monoterpene (E)-b-ocimene, the sesquiterpene (E,E)-a-farnesene, the irregular homoterpene 4,8,12-trimethyltridecatetra-1,3,7,11-ene, and the benzenoid compound methyl salicylate. Differences in the relative emissions of (E)-b-ocimene and (E,E)-a-farnesene from accession Wassilewskija (Ws), a high-(E)-b-ocimene emitter, and accession Columbia (Col-0), a trace-(E)-b-ocimene emitter, were attributed to allelic variation of two closely related, tandem-duplicated terpene synthase genes, TPS02 and TPS03. The Ws genome contains a functional allele of TPS02 but not of TPS03, while the opposite is the case for Col-0. Recombinant proteins of the functional Ws TPS02 and Col-0 TPS03 genes both showed (E)-b-ocimene and (E,E)-a-farnesene synthase activities. However, differential subcellular compartmentalization of the two enzymes in plastids and the cytosol was found to be responsible for the ecotype-specific differences in (E)-b-ocimene/(E,E)-a-farnesene emission. Expression of the functional TPS02 and TPS03 alleles is induced in leaves by elicitor and insect treatment and occurs constitutively in floral tissues. Our studies show that both pseudogenization in the TPS family and subcellular segregation of functional TPS enzymes control the variation and plasticity of induced volatile emissions in wild plant species.

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Volatiles emitted by different cotton varieties damaged by feeding beet armyworm larvae

Cited by 260 publications

References 19 publications

Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth

Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth

EAG-Active Herbivore-Induced Plant Volatiles Modify Behavioral Responses and Host Attack by An Egg Parasitoid

Variation of Herbivore-Induced Volatile Terpenes among Arabidopsis Ecotypes Depends on Allelic Differences and Subcellular Targeting of Two Terpene Synthases, TPS02 and TPS03

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