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Deceptive chemical signals induced by a plant virus attract insect vectors to inferior hosts
- K. Mauck, C. M. De Moraes, M. Mescher
- BiologyProceedings of the National Academy of Sciences
- 23 February 2010
CMV appears to attract vectors deceptively to infected plants from which they then disperse rapidly, a pattern highly conducive to the nonpersistent transmission mechanism employed by CMV and very different from the pattern previously reported for persistently transmitted viruses that require sustained aphid feeding for transmission.
Within-plant signalling via volatiles overcomes vascular constraints on systemic signalling and primes responses against herbivores.
- C. Frost, H. Appel, J. Carlson, C. M. De Moraes, M. Mescher, J. Schultz
- Environmental ScienceEcology letters
- 1 June 2007
Self-signalling via volatiles is consistent with the short distances over which plant response to airborne cues has been observed to occur and has apparent benefits for emitting plants, suggesting that within-plant signalling may have equal or greater ecological significance than signalling between plants.
Caterpillar-induced nocturnal plant volatiles repel conspecific females
The demonstration that tobacco plants release temporally different volatile blends and that lepidopteran herbivores use induced plant signals released during the dark phase to choose sites for oviposition adds a new dimension to the understanding of the role of chemical cues in mediating tritrophic interactions.
Transmission mechanisms shape pathogen effects on host–vector interactions: evidence from plant viruses
Examination of literature on interactions among plant viruses, their hosts, and insect vectors suggests that transmission mechanisms may indeed be an important factor influencing the manipulative strategies of vector-borne pathogens, with significant implications for managing viral diseases in agriculture and understanding their impacts on natural plant communities.
Priming defense genes and metabolites in hybrid poplar by the green leaf volatile cis-3-hexenyl acetate.
- C. Frost, M. Mescher, C. Dervinis, J. Davis, J. Carlson, C. M. De Moraes
- Environmental ScienceThe New phytologist
- 1 November 2008
Woody plants can detect and use z3HAC as a signal to prime defenses before actually experiencing damage, and GLVs may have important ecological functions in arboreal ecosystems.
Plant Defense Priming against Herbivores: Getting Ready for a Different Battle1
The induction of direct and indirect plant strategies in response to herbivore feeding or pathogen infection is studied.
Volatile Chemical Cues Guide Host Location and Host Selection by Parasitic Plants
It is demonstrated that the parasitic plant Cuscuta pentagona (dodder) uses volatile cues for host location and seedlings exhibit directed growth toward nearby tomato plants and toward extracted tomato-plant volatiles presented in the absence of other cues.
Induction of Plant Volatiles by Herbivores with Different Feeding Habits and the Effects of Induced Defenses on Host-Plant Selection by Thrips
- Casey M. Delphia, M. Mescher, C. M. Moraes
- Environmental ScienceJournal of Chemical Ecology
- 29 March 2007
The results provide the first direct evidence that thrips feeding induces volatile responses and indicates that simultaneous herbivory by insects with different feeding habits can alter volatile emissions.
Alarm pheromones-chemical signaling in response to danger.
Tracing the history of plant traits under domestication in cranberries: potential consequences on anti-herbivore defences.
The results suggest that compromised chemical defences in high-yielding cranberry varieties may lead to greater herbivore damage which, in turn, may require more intensive pesticide control measures.