Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior

Volatile infochemicals generated by aphids, their host plants, or from the interaction between host plant and herbivore (herbivore-induced volatile plant compounds) are among the environmental stimuli used by predators to lócate prey The objective of this study was to evalúate the olfactometric resp...

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Autores principales:	Heit,Guillermo E, Cohén,Graciela, Mareggiani,Graciela
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2008
Materias:	Cycloneda sanguínea infochemicals Lycopersicon esculentum Myzus persicae olfactometer
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200010
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spelling	oai:scielo:S0718-162020080002000102008-11-18Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behaviorHeit,Guillermo ECohén,GracielaMareggiani,Graciela Cycloneda sanguínea infochemicals Lycopersicon esculentum Myzus persicae olfactometer Volatile infochemicals generated by aphids, their host plants, or from the interaction between host plant and herbivore (herbivore-induced volatile plant compounds) are among the environmental stimuli used by predators to lócate prey The objective of this study was to evalúate the olfactometric response of the predator Cycloneda sanguínea (Coleóptera: Coccinellidae) to volatile infochemicals associated with the tomato plant, Lycopersicon esculentum Mili. (Solanaceae), and the aphid prey Myzus persicae Sulzer (Hemiptera: Aphididae). Predator behavior was evaluated in an airflow olfactometer at 24 ± 2°C with 65 ± 10% relative humidity and a 16 h photoperiod. Latency time and the number of visits to the active chamber where the odor source was located were recorded. The odor sources studied were: a. thirty healthy aphids; b. uninfested tomato leaves; c. infested tomato with 30 healthy aphids; d. infested tomato leaves with 30 stressed aphids; e. thirty stressed aphids. C. sanguínea adults were strongly attracted to the odors of infested tomato leaves, but for the other odor sources, they did not visit active chambers more often than inactive chambers. C. sanguínea took less time to find active chambers with tomato leaves infested with healthy aphids than to find chambers with aphids or tomato leaves alone. These results suggest that C. sanguínea uses herbivore-induced volatile plant compounds as reliable indicators of herbivore infestation to lócate prey.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.35 n.2 20082008-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200010en10.4067/S0718-16202008000200010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cycloneda sanguínea infochemicals Lycopersicon esculentum Myzus persicae olfactometer
spellingShingle	Cycloneda sanguínea infochemicals Lycopersicon esculentum Myzus persicae olfactometer Heit,Guillermo E Cohén,Graciela Mareggiani,Graciela Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
description	Volatile infochemicals generated by aphids, their host plants, or from the interaction between host plant and herbivore (herbivore-induced volatile plant compounds) are among the environmental stimuli used by predators to lócate prey The objective of this study was to evalúate the olfactometric response of the predator Cycloneda sanguínea (Coleóptera: Coccinellidae) to volatile infochemicals associated with the tomato plant, Lycopersicon esculentum Mili. (Solanaceae), and the aphid prey Myzus persicae Sulzer (Hemiptera: Aphididae). Predator behavior was evaluated in an airflow olfactometer at 24 ± 2°C with 65 ± 10% relative humidity and a 16 h photoperiod. Latency time and the number of visits to the active chamber where the odor source was located were recorded. The odor sources studied were: a. thirty healthy aphids; b. uninfested tomato leaves; c. infested tomato with 30 healthy aphids; d. infested tomato leaves with 30 stressed aphids; e. thirty stressed aphids. C. sanguínea adults were strongly attracted to the odors of infested tomato leaves, but for the other odor sources, they did not visit active chambers more often than inactive chambers. C. sanguínea took less time to find active chambers with tomato leaves infested with healthy aphids than to find chambers with aphids or tomato leaves alone. These results suggest that C. sanguínea uses herbivore-induced volatile plant compounds as reliable indicators of herbivore infestation to lócate prey.
author	Heit,Guillermo E Cohén,Graciela Mareggiani,Graciela
author_facet	Heit,Guillermo E Cohén,Graciela Mareggiani,Graciela
author_sort	Heit,Guillermo E
title	Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
title_short	Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
title_full	Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
title_fullStr	Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
title_full_unstemmed	Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior
title_sort	impact of odor signáis on cycloneda sanguínea (coleóptera: coccinellidae) searching behavior
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200010
work_keys_str_mv	AT heitguillermoe impactofodorsignaisoncyclonedasanguineacoleopteracoccinellidaesearchingbehavior AT cohengraciela impactofodorsignaisoncyclonedasanguineacoleopteracoccinellidaesearchingbehavior AT mareggianigraciela impactofodorsignaisoncyclonedasanguineacoleopteracoccinellidaesearchingbehavior
_version_	1714202112027525120

Impact of odor signáis on Cycloneda sanguínea (Coleóptera: Coccinellidae) searching behavior

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