A Plasma Membrane Protein from <i>Zea mays</i> Binds with the Herbivore Elicitor Volicitin

Truitt, Christopher L.; Wei, Han‐Xun; Paré, Paul W.

doi:10.1105/tpc.017723

Cited by 133 publications

(78 citation statements)

References 45 publications

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“…These results indicate that the chirality at the 17th carbon of the linolenic acid chain of volicitin did not affect the activity to release volatiles from the treated plants, although the existence of the hydroxyl moiety significantly affected the elicitor activity. More interestingly, the substitution of Lleucine, L-phenylalanine, L-proline, and L-threonine for L-glutamine resulted in a loss of the elicitor activity ( 24) and also that volicitin may not directly serve as a mobile messenger in triggering the release of volatile compounds systemically. 25) Considering the existence of a volicitin-binding protein, the results obtained in the present study suggest that the Lglutamine moiety of volicitin played an important role in binding.…”

Section: Resultsmentioning

confidence: 99%

Absolute Configuration of Volicitin from the Regurgitant of Lepidopteran Caterpillars and Biological Activity of Volicitin-Related Compounds

Sawada

Yoshinaga

Fujisaki

et al. 2006

Bioscience, Biotechnology, and Biochemistry

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Section: Resultsmentioning

confidence: 99%

Absolute Configuration of Volicitin from the Regurgitant of Lepidopteran Caterpillars and Biological Activity of Volicitin-Related Compounds

Sawada

Yoshinaga

Fujisaki

et al. 2006

Bioscience, Biotechnology, and Biochemistry

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“…The mechanisms by which plants respond to elicitors from herbivores have not been studied extensively. A study on volicitin in the regurgitant of Spodoptera exigua showed that the initiation of the response of maize plants to feeding damage was mediated by a protein-ligand interaction in plasma membrane fractions (32). In cowpea, perception of Spodoptera frugiperda herbivory is mediated by fragments of ATP synthase that induce a targeted defense mechanism (27).…”

Section: Discussionmentioning

confidence: 99%

Male-derived butterfly anti-aphrodisiac mediates induced indirect plant defense

Fatouros¹,

Broekgaarden

Bukovinszkine’Kiss³

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

110

106

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Plants can recruit parasitic wasps in response to egg deposition by herbivorous insects-a sophisticated indirect plant defense mechanism. Oviposition by the Large Cabbage White butterfly Pieris brassicae on Brussels sprout plants induces phytochemical changes that arrest the egg parasitoid Trichogramma brassicae. Here, we report the identification of an elicitor of such an ovipositioninduced plant response. Eliciting activity was present in accessory gland secretions released by mated female butterflies during egg deposition. In contrast, gland secretions from virgin female butterflies were inactive. In the male ejaculate, P. brassicae females receive the anti-aphrodisiac benzyl cyanide (BC) that reduces the females' attractiveness for subsequent mating. We detected this pheromone in the accessory gland secretion released by mated female butterflies. When applied onto leaves, BC alone induced phytochemical changes that arrested females of the egg parasitoid. Microarray analyses revealed a similarity in induced plant responses that may explain the arrest of T. brassicae to egg-laden and BC-treated plants. Thus, a male-derived compound endangers the offspring of the butterfly by inducing plant defense. Recently, BC was shown to play a role in foraging behavior of T. brassicae, by acting as a cue to facilitate phoretic transport by mated female butterflies to oviposition sites. Our results suggest that the antiaphrodisiac pheromone incurs fitness costs for the butterfly by both mediating phoretic behavior and inducing plant defense.egg parasitoid ͉ elicitor ͉ Trichogramma brassicae ͉ Pieris brassicae ͉ Brussels sprouts C hemical signals play a crucial role in the interactions between herbivorous insects and parasitic wasps (1). To locate the tiny eggs of herbivorous host insects in an 'ocean' of plant biomass, egg parasitoids have been shown to employ chemical cues either induced in the plant by host egg deposition or from the adult host stage [i.e., infochemical detour, (2)], whereas only short-range cues emanate from the eggs themselves (3). Plants injured by feeding herbivores often start to release chemical cues that attract predators and parasitoids to effectively defend the plant by killing the herbivores (4, 5). This indirect plant defense may be triggered by compounds in the regurgitant of the herbivore, allowing the plant to discriminate between mechanical wounding and insect feeding (6-8). Plants can also respond before being damaged by insect feeding. Egg deposition by herbivorous insects induces volatiles attractive to egg parasitoids in tritrophic interactions associated with elm, pine, and bean plants (9). The elicitor of these oviposition-induced parasitoid attractants (synomones) was shown to be located in the oviduct secretion of the female herbivore, which is used to glue eggs onto leaves (10,11).Recent data revealed that egg deposition by Pieris brassicae on Brussels sprouts plants (Brassica oleracea var. gemmifera cv. Cyrus) induces chemical changes in the leaf surface that arrest the egg parasi...

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“…Plants respond with indirect defenses in the form of induced volatile emissions that function as long-range attractants enabling predators and parasitoids to locate their respective prey and hosts (11)(12)(13). Receptor-like binding of FAC elicitors in maize has been reported; however, this plasma membrane protein remains unidentified (14). Alternatively, plants may also indirectly perceive biotic attack.…”

mentioning

confidence: 99%

Fragments of ATP synthase mediate plant perception of insect attack

Schmelz

Carroll

LeClere

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

352

265

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Plants can perceive a wide range of biotic attackers and respond with targeted induced defenses. Specificity in plant non-selfrecognition occurs either directly by perception of pest-derived elicitors or indirectly through resistance protein recognition of host targets that are inappropriately proteolyzed. Indirect plant perception can occur during interactions with pathogens, yet evidence for analogous events mediating the detection of insect herbivores remains elusive. Here we report indirect perception of herbivory in cowpea (Vigna unguiculata) plants attacked by fall armyworm (Spodoptera frugiperda) larvae. We isolated and identified a disulfide-bridged peptide ( ؉ ICDINGVCVDA ؊ ), termed inceptin, from S. frugiperda larval oral secretions that promotes cowpea ethylene production at 1 fmol leaf ؊1 and triggers increases in the defenserelated phytohormones salicylic acid and jasmonic acid. Inceptins are proteolytic fragments of chloroplastic ATP synthase ␥-subunit regulatory regions that mediate plant perception of herbivory through the induction of volatile, phenylpropanoid, and protease inhibitor defenses. Only S. frugiperda larvae that previously ingested chloroplastic ATP synthase ␥-subunit proteins and produced inceptins significantly induced cowpea defenses after herbivory. Digestive fragments of an ancient and essential plant enzyme, inceptin functions as a potent indirect signal initiating specific plant responses to insect attack.elicitor ͉ guard hypothesis ͉ indirect perception ͉ insect herbivory ͉ plant defense A mechanistic understanding and targeted improvement of plant resistance traits are recognized as essential in combating yield losses from crop pests. Plants can perceive and defensively respond to attack either directly by impeding pest growth or indirectly by promoting advantageous interactions with beneficial organisms (1-7). Great progress has been made in the identification of plant receptor-like kinase families mediating perception of biotic attack and the subsequent activation of signal transduction cascades spanning interactions of GTP binding proteins, mitogen-activated protein kinases, phytohormones, transcription factors, and ultimately induced biochemical defenses (2,8). Despite these advances, relatively few candidate elicitors and ligands responsible for the initiation and specificity of induced plant defenses to pest attack have been identified (1, 2). This void is especially acute in the case of insect herbivore perception and is surprising given both the significance of plant-insect interactions in arthropod and angiosperm evolution and the role of insects in facilitating plant pathogen entry (9, 10).Induced plant defenses are initiated in part by the direct perception of elicitors derived from offending organisms. For example, maize (Zea mays) and tobacco (Nicotiana attenuata) perceive insect attack through the direct detection of fatty acid amino acid conjugate (FAC) elicitors present in insect oral secretions (OS). Plants respond with indirect defenses in the form of indu...

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A Plasma Membrane Protein from Zea mays Binds with the Herbivore Elicitor Volicitin

Cited by 133 publications

References 45 publications

Absolute Configuration of Volicitin from the Regurgitant of Lepidopteran Caterpillars and Biological Activity of Volicitin-Related Compounds

Absolute Configuration of Volicitin from the Regurgitant of Lepidopteran Caterpillars and Biological Activity of Volicitin-Related Compounds

Male-derived butterfly anti-aphrodisiac mediates induced indirect plant defense

Fragments of ATP synthase mediate plant perception of insect attack

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