Lima bean (Phaseolus lunatus) seed coat phaseolin is detrimental to the cowpea weevil (Callosobruchus maculatus)

Moraes, R.A.; Sales, Maurı́cio P.; Pinto, Manuel; Silva, L.B.; Oliveira, Antônia Elenir Amâncio; Machado, Olga Lima Tavares; Fernandes, Kátia Valevski Sales; Xavier‐Filho, J.

doi:10.1590/s0100-879x2000000200005

Cited by 38 publications

(21 citation statements)

References 24 publications

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“…Expression of oxylipin metabolites in Dnx plants appears to stimulate production of downstream feeding inhibitors and toxins (Fig. 2E), several of which have been reported as resistance factors (Moraes et al 2000; Miller et al 2005; Lou and Baldwin 2006; Smith and Boyko 2006; Liu et al 2007). RWA1 phloem ingestion decreases markedly on Dnx plants within 8 hpi (Lazzari et al 2009), further supporting the possibility that Dnx feeding inhibitors and/or toxins contribute to the significant ( P < 0.001) antibiotic effects exhibited in the reduced RWA1 population development shown in Fig.…”

Section: Discussionmentioning

confidence: 90%

Aphid Feeding Activates Expression of a Transcriptome of Oxylipin-based Defense Signals in Wheat Involved in Resistance to Herbivory

et al. 2010

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Damage by the Russian wheat aphid (RWA), Diuraphis noxia, significantly reduces wheat and barley yields worldwide. In compatible interactions, virulent RWA populations flourish and susceptible plants suffer extensive leaf chlorophyll loss. In incompatible interactions, RWA reproduction and population growth are significantly reduced and RWA-related chlorophyll loss in resistant plants is minor. The objectives of this study were to develop an understanding of the molecular and phytochemical bases of RWA resistance in plants containing the Dnx resistance gene. Microarray, real-time polymerase chain reaction, and phytohormone assays were conducted to identify transcriptome components unique to RWA-infested Dnx plants and susceptible (Dn0) plants, and to identify and characterize putative genes involved in Dnx plant defense responses. We found that RWA-infested Dnx plants upregulated > 180 genes related to reactive oxygen species, signaling, pathogen defense, and arthropod allelochemical and physical defense. The expression of several of these genes in RWA-infested Dnx plants increased significantly from 6- to 24-h post infestation (hpi), but their expression in Dn0 plants, when present, was delayed until 48- to 96 hpi. Concentrations of 16- and 18-carbon fatty acids, trans-methyl-12-oxophytodienoic acid, and abscisic acid were significantly greater in Dnx foliage than in Dn0 foliage after RWA infestation, suggesting that Dnx RWA defense and resistance genes may be regulated via the oxylipin pathway. These findings provide a foundation for the elucidation of the molecular basis for compatible- and incompatible plant-aphid interactions.

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Section: Discussionmentioning

confidence: 90%

Aphid Feeding Activates Expression of a Transcriptome of Oxylipin-based Defense Signals in Wheat Involved in Resistance to Herbivory

et al. 2010

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“…Physical features of the seeds are known to affect beetle oviposition behavior and the ability of larvae to burrow into the seed (Chavan et al, 1997;Plaza, 2001;Boeke et al, 2004). Similarly, nutritional and defense chemical compounds present in the testa and inside the seed are known to interfere with the development and affect the survival of seed beetles (Goossens et al, 2000;Moraes et al, 2000;Silva et al, 2004), and their concentrations can differ between wild and cultivated accessions (Sotelo et al, 1995;Zaugg et al, 2013). Particularly, for Z. subfasciatus, earlier studies have documented differences in its performance when reared on cultivated or wild beans (Schoonhoven et al, 1983;Benrey et al, 1998;Campan and Benrey, 2006), as well as differential performance of beetles on wild seed populations that vary in their protein or phenolic content (Moreira et al, 2015;Hernandez-Cumplido et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

The Large Seed Size of Domesticated Lima Beans Mitigates Intraspecific Competition among Seed Beetle Larvae

2017

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The domestication of beans has selected for larger seeds in cultivated plants compared to their wild relatives. This has not only resulted in an enhanced resource for humans, but also for the insects that feed on these seeds. Seed beetles that attack wild and cultivated seeds often lay several eggs on a single seed. We hypothesized that the larger seed size of domesticated beans will mitigate the competition among the larvae that hatch from these eggs, with important implications for their growth and survival. To test this we examined how seed size of wild and cultivated Phaseolus lunatus (lima bean) affect the performance of the Mexican bean weevil Zabrotes subfasciatus, an important pest of beans in Mexico. A negative correlation was found between the initial number of eggs on a seed and the weight of female beetles that emerged, but only for the much smaller wild seeds. Similarly, beetle survival was found to be negatively correlated with competition intensity only on wild seeds. Our results imply that by selecting for larger seeds, domestication of P. lunatus has reduced the intensity of intraspecific larval competition of Z. subfasciatus.

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“…Nevertheless multiple functions for vicilin-like proteins have been suggested [25]. Previous work showed the presence of vicilins in the seed coats of Canavalia ensiformis [26], Phaseolus lunatus [27] and Phaseolus vulgaris [28], and effective activity of these proteins against bruchid beetles and phytopatogenic fungi lead the authors to suggest that these proteins are important in the seed defense mechanisms against predators. A 62 kDa sucrose-binding protein (GmSBP) from soybean cotyledons [29] was shown to have sequence similarities with vicilins [30,31].…”

Section: Resultsmentioning

confidence: 99%

Insulin-Binding Canavalin Is Present in Canavalia ensiformis Seed Coat

Ribeiro¹,

Uchôa²,

Silva³

et al. 2009

PPL

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An insulin-binding protein was isolated from Canavalia ensiformis seed coat, by using an insulin-Sepharose 4B affinity chromatography, and the protein was identified as canavalin (Canavalia 7S globulin) by mass spectrometry analysis. The major novelty of these data is the acidic nature of this globulin insulin-binding, in contrast to the basic Bg-like insulin-binding proteins so far reported in plants.

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Lima bean (Phaseolus lunatus) seed coat phaseolin is detrimental to the cowpea weevil (Callosobruchus maculatus)

Cited by 38 publications

References 24 publications

Aphid Feeding Activates Expression of a Transcriptome of Oxylipin-based Defense Signals in Wheat Involved in Resistance to Herbivory

Aphid Feeding Activates Expression of a Transcriptome of Oxylipin-based Defense Signals in Wheat Involved in Resistance to Herbivory

The Large Seed Size of Domesticated Lima Beans Mitigates Intraspecific Competition among Seed Beetle Larvae

Insulin-Binding Canavalin Is Present in Canavalia ensiformis Seed Coat

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