Sugar Diet Affects Odor Reception but Variation in Sugar Concentration Plays Minimal Role in the Response of the Parasitoid, Microplitis croceipes (Hymenoptera: Braconidae), to Host-Related Plant Volatiles

2017 ◽  
Vol 110 (3) ◽  
pp. 971-977 ◽  
Author(s):  
Matthew Burrows ◽  
Tolulope Morawo ◽  
Henry Fadamiro
Keyword(s):  
Plant Volatiles ◽  
Microplitis Croceipes ◽  
Sugar Concentration ◽  
Related Plant

scholarly journals Do age and mating status affect olfactory response of the parasitoid, Microplitis croceipes (Hymenoptera: Braconidae) to host-related plant odors?

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1817
Author(s):  
Matthew Burrows ◽  
Tolulope Morawo ◽  
Henry Fadamiro
Keyword(s):  
Binary Mixture ◽  
Physiological State ◽  
Olfactory Response ◽  
Microplitis Croceipes ◽  
Mating Status ◽  
Olfactory Responses ◽  
Odor Cues ◽  
Plant Odors ◽  
Test Odor ◽  
Related Plant

Background: Parasitic wasps (parasitoids) use volatile organic compounds released by herbivore-infested plants to locate their hosts. Response of parasitoids to plant odors may be plastic and dependent on their physiological state. Using Microplitis croceipes (Hymenoptera: Braconidae), a relatively specialized larval endoparasitoid of Heliothis virescens (Lepidoptera: Noctuidae), we asked whether age and mating status of parasitoids affect their olfactory response to host-related odors. Methods: Four odor stimuli of varying complexity were selected based on previous reports of parasitoid response to cotton volatiles: cis-3-hexenol (a green leaf volatile), α-pinene (a constitutive monoterpene), a 50/50 v/v binary mixture (cis-3-hexenol + α-pinene), and H. virescens-infested cotton odors. Female M. croceipes used in Y-tube olfactometer bioassays were either mated or unmated, and grouped 1–3, 4–6, and 7–9 d-old. Female parasitoids used in electroantennogram (EAG) recording were mated and grouped 1–3, 4–6, 7–9 and 10–12 d-old. Results: In Y-tube olfactometer bioassays, neither age nor mating status played a major role in the attraction of parasitoids to test odor stimuli, with two exceptions: 4–6 d-old mated parasitoids showed attraction to the binary mixture, and 1–3 d-old mated parasitoids showed attraction to H. virescens-infested cotton. Age did not affect EAG response of parasitoids to test stimuli. Conclusions: The present results suggest that age and mating status do not play a major role in modulating olfactory responses of M. croceipes to host-related plant odors. Instead, plasticity of olfactory response may be limited in M. croceipes due to strong innate sensitivity to host-related odor cues.

scholarly journals Do age and mating status affect olfactory response of the parasitoid, Microplitis croceipes (Hymenoptera: Braconidae) to host-related plant odors?

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1817
Author(s):  
Matthew Burrows ◽  
Tolulope Morawo ◽  
Henry Fadamiro
Keyword(s):  
Binary Mixture ◽  
Physiological State ◽  
Olfactory Response ◽  
Microplitis Croceipes ◽  
Mating Status ◽  
Olfactory Responses ◽  
Odor Cues ◽  
Plant Odors ◽  
Test Odor ◽  
Related Plant

Background: Parasitic wasps (parasitoids) use volatile organic compounds released by herbivore-infested plants to locate their hosts. Response of parasitoids to plant odors may be plastic and dependent on their physiological state. Using Microplitis croceipes (Hymenoptera: Braconidae), a relatively specialized larval endoparasitoid of Heliothis virescens (Lepidoptera: Noctuidae), we asked whether age and mating status of parasitoids affect their olfactory response to host-related odors. Methods: Four odor stimuli of varying complexity were selected based on previous reports of parasitoid response to cotton volatiles: cis-3-hexenol (a green leaf volatile), α-pinene (a constitutive monoterpene), a 50/50 v/v binary mixture (cis-3-hexenol + α-pinene), and H. virescens-infested cotton odors. Female M. croceipes used in Y-tube olfactometer bioassays were either mated or unmated, and grouped 1–3, 4–6, and 7–9 d-old. Female parasitoids used in electroantennogram (EAG) recording were mated and grouped 1–3, 4–6, 7–9 and 10–12 d-old. Results: In Y-tube olfactometer bioassays, neither age nor mating status played a major role in the attraction of parasitoids to test odor stimuli, with two exceptions: 4–6 d-old mated parasitoids showed attraction to the binary mixture, and 1–3 d-old mated parasitoids showed attraction to H. virescens-infested cotton. Age did not affect EAG response of parasitoids to test stimuli. Conclusions: The present results suggest that age and mating status do not play a major role in modulating olfactory responses of M. croceipes to host-related plant odors. Instead, plasticity of olfactory response may be limited in M. croceipes due to strong innate sensitivity to host-related odor cues.

Investigation into the presence of Monatin in related plant species

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
N Moodley ◽  
V Maharaj
Keyword(s):  
Plant Species ◽  
Related Plant
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