Impact of odor signals on Cycloneda sanguinea (Coleoptera: 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 locate prey. The objective of this study was to evaluate the olfactometric res...

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Autores principales: Cohen, Rosa Graciela, Mareggiani, Graciela
Publicado: 2008
Materias:
Cycloneda sanguinea
Infochemicals
Lycopersicon esculentum
Myzus persicae olfactometer
Aphididae
Coccinellidae
Coleoptera
Hemiptera
Magnoliophyta
Myzus persicae
Solanaceae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03045609_v35_n2_p167_Heit
http://hdl.handle.net/20.500.12110/paper_03045609_v35_n2_p167_Heit
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03045609_v35_n2_p167_Heit
record_format dspace
spelling paper:paper_03045609_v35_n2_p167_Heit2023-06-08T15:30:01Z Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior Cohen, Rosa Graciela Mareggiani, Graciela Cycloneda sanguinea Infochemicals Lycopersicon esculentum Myzus persicae olfactometer Aphididae Coccinellidae Coleoptera Cycloneda sanguinea Hemiptera Lycopersicon esculentum Magnoliophyta Myzus persicae Solanaceae 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 locate prey. The objective of this study was to evaluate the olfactometric response of the predator Cycloneda sanguinea (Coleoptera: Coccinellidae) to volatile infochemicals associated with the tomato plant, Lycopersicon esculentum Mill. (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. sanguinea 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. sanguinea 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. sanguinea uses herbivore-induced volatile plant compounds as reliable indicators of herbivore infestation to locate prey. Fil:Cohen, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mareggiani, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03045609_v35_n2_p167_Heit http://hdl.handle.net/20.500.12110/paper_03045609_v35_n2_p167_Heit
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cycloneda sanguinea
Infochemicals
Lycopersicon esculentum
Myzus persicae olfactometer
Aphididae
Coccinellidae
Coleoptera
Cycloneda sanguinea
Hemiptera
Lycopersicon esculentum
Magnoliophyta
Myzus persicae
Solanaceae
spellingShingle Cycloneda sanguinea
Infochemicals
Lycopersicon esculentum
Myzus persicae olfactometer
Aphididae
Coccinellidae
Coleoptera
Cycloneda sanguinea
Hemiptera
Lycopersicon esculentum
Magnoliophyta
Myzus persicae
Solanaceae
Cohen, Rosa Graciela
Mareggiani, Graciela
Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
topic_facet Cycloneda sanguinea
Infochemicals
Lycopersicon esculentum
Myzus persicae olfactometer
Aphididae
Coccinellidae
Coleoptera
Cycloneda sanguinea
Hemiptera
Lycopersicon esculentum
Magnoliophyta
Myzus persicae
Solanaceae
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 locate prey. The objective of this study was to evaluate the olfactometric response of the predator Cycloneda sanguinea (Coleoptera: Coccinellidae) to volatile infochemicals associated with the tomato plant, Lycopersicon esculentum Mill. (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. sanguinea 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. sanguinea 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. sanguinea uses herbivore-induced volatile plant compounds as reliable indicators of herbivore infestation to locate prey.
author Cohen, Rosa Graciela
Mareggiani, Graciela
author_facet Cohen, Rosa Graciela
Mareggiani, Graciela
author_sort Cohen, Rosa Graciela
title Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
title_short Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
title_full Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
title_fullStr Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
title_full_unstemmed Impact of odor signals on Cycloneda sanguinea (Coleoptera: Coccinellidae) searching behavior
title_sort impact of odor signals on cycloneda sanguinea (coleoptera: coccinellidae) searching behavior
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03045609_v35_n2_p167_Heit
http://hdl.handle.net/20.500.12110/paper_03045609_v35_n2_p167_Heit
work_keys_str_mv AT cohenrosagraciela impactofodorsignalsoncyclonedasanguineacoleopteracoccinellidaesearchingbehavior
AT mareggianigraciela impactofodorsignalsoncyclonedasanguineacoleopteracoccinellidaesearchingbehavior
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