Types and Mechanisms of Rapidly Induced Plant Resistance to Herbivorous Arthropods

Stout, Michael J.

doi:10.1002/9781118371848.ch5

Cited by 6 publications

(3 citation statements)

References 120 publications

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“…Plants respond to pathogen and insect attack by enhancing structural and chemical defenses that provide host plants with broad‐spectrum acquired resistance to subsequent pest attack (Stout, ). Several forms of acquired resistance have been characterised including salicylic acid‐dependent defenses (also known as systemic acquired resistance, SAR) and jasmonate‐dependent defenses (also known as wound induced resistance).…”

Section: Introductionmentioning

confidence: 99%

Effects of elicitors of host plant defenses on pear psylla, Cacopsylla pyricola

Cooper¹,

Horton²

2015

Entomologia Exp Applicata

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Pear psylla, Cacopsylla pyricola (Foerster) (Hemiptera: Psyllidae), is a key pest of cultivated pear [Pyrus communis L. (Rosaceae)] in North America and Europe. We examined the effects of foliar applications of three commercially available chemical elicitors of host-plant defenses -Actigard (acibenzolar-S-methyl), Employ (harpin protein), and ODC (chitosan) -on survival, development, feeding, and egg laying of C. pyricola. All three defense elicitors reduced the number of nymphs present on pear (cvs. Bartlett or D'Anjou) 30 days after releasing 10 adults on the trees. Choice assays showed that females settled and oviposited on untreated trees more often than on trees treated with any of the three defense elicitors. Results of no-choice assays confirmed that the effects of Actigard, Employ, and ODC on C. pyricola were due to activation of systemic plant responses that led to reduced oviposition preference and nymph survival. However, results did not provide evidence that plant responses to elicitors led to reduced nymphal feeding rates or development. Results of our laboratory studies suggest that commercial defense elicitors may be useful in the integrated management of pear psylla once the effects of elicitors at an ecological scale are better understood.

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Section: Introductionmentioning

confidence: 99%

Effects of elicitors of host plant defenses on pear psylla, Cacopsylla pyricola

Cooper¹,

Horton²

2015

Entomologia Exp Applicata

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“…The former is caused by a change in nitrogen content, which is decreased by fungal infection (Dulermo et al 2009;Al-Naemi & Hatcher 2013), and the latter is induced resistance, where the plant responds to infection through two signaling routes, the salicylic acid (SA) and jasmonic acid (JA) pathways (Pieterse et al 2014). The SA pathway is usually used by plants to respond to sucking/piercing herbivores (including aphids), whereas the JA pathway is upregulated in response to necrotrophic pathogens and chewing herbivores (Pieterse et al 2014;Stout 2014), and these pathways are considered to trade-off against each other (Spoel et al 2003;Brooks et al 2005).…”

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confidence: 99%

Aphids show interspecific and intraspecific variation in life history responses to host plant infection by the fungal pathogen Botrytis cinerea

Srisakrapikoop

Pirie

Fellowes

2021

Entomological Science

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The life histories of insect herbivores are affected by variation in host plant quality, with poor quality typically being associated with reduced herbivore fecundity, size and longevity. Plant pathogens are ubiquitous in nature and can alter host plant quality as experienced by insect herbivores. We asked how host plant infection by the widespread and economically important fungal pathogen Botrytis cinerea affected the life history traits of two aphid species. We found that the life history traits of the black bean aphid Aphis fabae were negatively affected by being reared on infected host plants, showing reduced fecundity, population growth rate, size, off-plant survival time and development rate. In contrast, we found that pea aphids Acyrthosiphon pisum benefitted from being reared on infected plants, and that the degree of benefit varied between pea aphid clonal lines. This work suggests that the ecological and economic consequences of plant pathogen infection on the dynamics of aphid pests could be difficult to predict.

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“…In modern agriculture, host plant resistance is an integral component, if not the basis, of arthropod pest regulation in integrated pest management (IPM) programs (Panda and Kush, 1995;Smith, 2005;Stout, 2007). The plant resistance category known by antibiosis occurs when the negative effects from a resistant plant affect the biology of an arthropod, when it uses the plant to feed upon.…”

Section: Introductionmentioning

confidence: 99%

Antibiosis resistance of soybean genotypes to Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae)

Eduardo¹,

Bruno²,

Jos³

et al. 2014

Afr. J. Agric. Res.

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This research aimed to discriminate antibiosis-type resistant soybean genotypes to Diabrotica speciosa (Germar, 1824). Six soybean genotypes were used, according to previous selection, which were: IAC 100, BRSGO 8360, IGRA RA 626 RR, DM 339, PI 227687 and PI 274454. A completely randomized design was adopted, with six treatments and 10 replicates. Each replicate was constituted by 10 soybean plants and 10 D. speciosa larvae, in the initial infestation, doubling the number of plants in the transferring, 10 days after the initial infestation, using fine-grained vermiculite as substrate. In this experiment, the following characters from D. speciosa were assessed: Number of males, females and total of emerged insects, total survival (percentage), sex ratio, male and female weight (mg), larva to adult period and longevity (without food). The genotypes DM 339, PI 274454, and PI 227687 show antibiosis resistance against D. speciosa.

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Types and Mechanisms of Rapidly Induced Plant Resistance to Herbivorous Arthropods

Cited by 6 publications

References 120 publications

Effects of elicitors of host plant defenses on pear psylla, Cacopsylla pyricola

Effects of elicitors of host plant defenses on pear psylla, Cacopsylla pyricola

Aphids show interspecific and intraspecific variation in life history responses to host plant infection by the fungal pathogen Botrytis cinerea

Antibiosis resistance of soybean genotypes to Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae)

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