Benefits and costs of tomato seed treatment with plant defense elicitors for insect resistance

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Seeds may be receptive to plant defense activators such as β-amino butyric acid and jasmonic acid, conferring protection to the subsequent plant against a wide spectrum of plant pathogens and insects. We examined the independent and interactive effects of methyl jasmonate (MeJA) seed treatment on tomato fruit worm (Helicoverpa zea) larval growth and the activity of the defensive protein, polyphenol oxidase (PPO), in leaves of tomato plants at three different plant stages. Additionally, we measured the dosage effects of MeJA seed treatment on several plant vegetative and reproductive traits. Results suggest that seed treatment with MeJA will induce defenses in plants, which is correlated with increased PPO activity in leaves and reduction in larval growth. However, fitness costs in plants were observed with higher dosage of MeJA. Thus, if successfully integrated with other facets of an integrated pest management program, the use of MeJA as elicitors of plant defense could be an important tool in managing insect pests and contribute to a reduction in applications of chemical pesticides.

Original languageEnglish (US)
Pages (from-to)539-545
Number of pages7
JournalArthropod-Plant Interactions
Volume8
Issue number6
DOIs
StatePublished - Jan 1 2014

Fingerprint

seed treatment
plant defense
tomatoes
insect
methyl jasmonate
insects
cost
catechol oxidase
protein
integrated pest management
Helicoverpa zea
elicitors
butyric acid
reproductive traits
jasmonic acid
plant pathogens
insect pests
fitness
dose response
pathogen

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Agronomy and Crop Science
  • Insect Science

Cite this

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abstract = "Seeds may be receptive to plant defense activators such as β-amino butyric acid and jasmonic acid, conferring protection to the subsequent plant against a wide spectrum of plant pathogens and insects. We examined the independent and interactive effects of methyl jasmonate (MeJA) seed treatment on tomato fruit worm (Helicoverpa zea) larval growth and the activity of the defensive protein, polyphenol oxidase (PPO), in leaves of tomato plants at three different plant stages. Additionally, we measured the dosage effects of MeJA seed treatment on several plant vegetative and reproductive traits. Results suggest that seed treatment with MeJA will induce defenses in plants, which is correlated with increased PPO activity in leaves and reduction in larval growth. However, fitness costs in plants were observed with higher dosage of MeJA. Thus, if successfully integrated with other facets of an integrated pest management program, the use of MeJA as elicitors of plant defense could be an important tool in managing insect pests and contribute to a reduction in applications of chemical pesticides.",
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Benefits and costs of tomato seed treatment with plant defense elicitors for insect resistance. / Paudel, Sulav; Rajotte, Edwin George; Felton, Gary.

In: Arthropod-Plant Interactions, Vol. 8, No. 6, 01.01.2014, p. 539-545.

Research output: Contribution to journalArticle

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