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Does enhanced nutrient availability increase volatile emissions in cranberry?

Elvira S De Lange1, Cesar Rodriguez-Saona2

  • 1a Department of Entomology and Nematology , University of California Davis , Davis , CA , USA.

Plant Signaling & Behavior
|May 28, 2019
PubMed
Summary
This summary is machine-generated.

Fertilizer application boosted plant volatile emissions in cranberries by increasing plant weight. This finding could help manage natural enemies in agricultural systems.

Keywords:
FertilizerVaccinium macrocarpongenotypesherbivore-induced plant volatilesmethyl jasmonate

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Area of Science:

  • Plant Science
  • Ecology
  • Agricultural Science

Background:

  • Nutrient availability influences plant indirect defenses, like herbivore-induced plant volatiles (HIPVs).
  • The impact of nutrients on HIPVs varies across cropping systems, leading to inconsistent effects.
  • Understanding these effects is crucial for managing plant defenses and associated ecosystems.

Purpose of the Study:

  • To investigate how nitrogen (N), phosphorus (P), and potassium (K) availability affects HIPV emissions in cranberry plants.
  • To determine if these effects differ across cranberry varieties.
  • To assess the role of methyl jasmonate (MeJA) in mediating nutrient-induced HIPV emissions.

Main Methods:

  • A 6x4x2 factorial experiment was conducted using six cranberry varieties.
  • Plants were subjected to four different NPK fertilizer regimes.
  • Plants were either induced with methyl jasmonate (MeJA) or left noninduced.

Main Results:

  • Enhanced NPK fertilizer application significantly increased total HIPV emissions in MeJA-treated cranberries.
  • This increase was observed across all tested cranberry varieties.
  • The rise in HIPV emissions correlated with an increase in plant fresh weight.

Conclusions:

  • Increased NPK fertilization can enhance HIPV emissions in cranberries, primarily by increasing plant biomass.
  • These findings suggest a mechanism for manipulating natural enemy attraction in agricultural settings.
  • Further research is needed to explore the ecological consequences of these enhanced emissions.