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Volatile Signaling in Plant-Plant Interactions: "Talking Trees" in the Genomics Era
Plants may “eavesdrop” on volatile organic compounds (VOCs) released by herbivore-attacked neighbors to activate defenses before being attacked themselves. Transcriptome and signal cascade analysesExpand
Herbivore-induced ethylene suppresses a direct defense but not a putative indirect defense against an adapted herbivore
TLDR
Because parasitoids of Manduca larvae are sensitive to the dietary intake of nicotine by their hosts, this ethylene-mediated switching from direct to putative indirect defense may represent an adaptive tailoring of a plant's defense response. Expand
The eco-physiological complexity of plant responses to insect herbivores
TLDR
While the mechanisms of many plant-herbivore interactions are not well understood, the ecological complexity of plant responses against herbivores is well recognized, as the defense response elicited by volicitin underscores. Expand
Tobacco mosaic virus inoculation inhibits wound-induced jasmonic acid-mediated responses within but not between plants
TLDR
It is concluded that tobacco plants, when inoculated with TMV, are unable to elicit normal wound responses, due likely to the inhibition of JA production by the systemic increase in SA induced by virus-inoculation. Expand
Isolation of a Pyrazine Alarm Pheromone Component from the Fire Ant, Solenopsis invicta
TLDR
This is the first report of 2-ethyl-3,6-dimethylpyrazine from a Solenopsis species and the first example of this alkaloid functioning as an alarm pheromone. Expand
Plant–Plant Signaling: Application of trans- or cis-Methyl Jasmonate Equivalent to Sagebrush Releases Does Not Elicit Direct Defenses in Native Tobacco
TLDR
It is concluded that volatile MeJA, either trans- or cis-, when applied at levels consistent with those released by sagebrush does not elicit direct defenses in N. attenuata. Expand
Positive and negative signals regulate germination in the post- fire annual, Nicotiana attenuata
TLDR
It is demonstrated in a glasshouse experiment that germination into burned soils (as compared to unburned) results in a 12-fold increase in lifetime seed production, which reflects a minimum estimate of the fitness benefit of making accurat... Expand
Patterns and Consequences of Benzyl Acetone Floral Emissions from Nicotiana attenuata Plants
TLDR
The results conclude that while the phenological variation in attack rates might have obscured the ability to estimate the fitness consequences of enhanced BA emission, the effects are likely to be dominated by kairomonal rather than synomonal interactions for this self-compatible species. Expand
Methyl jasmonate is blowing in the wind, but can it act as a plant-plant airborne signal?
TLDR
To examine the hypothesis that the cis-MeJA release is responsible for the apparent inter-plant communication, methods to entrain sagebrush constituents in water which preserved the isomeric shift in the MeJA released after damage were developed. Expand
Queen regulates biogenic amine level and nestmate recognition in workers of the fire ant, Solenopsis invicta
TLDR
This is the first demonstration of a link between the presence of the colony queen, a worker biogenic amine, and conspecific nestmate recognition, a powerful expression of colony cohesion and territoriality. Expand
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