Three chemosensory proteins from the sweet potato weevil, Cylas formicarius , are involved in the perception of host plant volatiles

2021 ◽  
Author(s):  
Jinfeng Hua ◽  
Yujie Fu ◽  
Qiaoling Zhou ◽  
Yongmei Huang ◽  
Huifeng Li ◽  
...  
Keyword(s):  
Host Plant ◽  
Sweet Potato ◽  
Plant Volatiles ◽  
Host Plant Volatiles ◽  
Chemosensory Proteins ◽  
Cylas Formicarius ◽  
Sweet Potato Weevil

scholarly journals α-Terpineol: An Aggregation Pheromone in Optatus palmaris (Coleoptera: Curculionidae) (Pascoe, 1889) Enhanced by Its Host-Plant Volatiles

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2861
Author(s):  
José Manuel Pineda-Ríos ◽  
Juan Cibrián-Tovar ◽  
Luis Martín Hernández-Fuentes ◽  
Rosa María López-Romero ◽  
Lauro Soto-Rojas ◽  
...  
Keyword(s):  
Host Plant ◽  
Aggregation Pheromone ◽  
Plant Volatiles ◽  
Solid Phase ◽  
Control Strategies ◽  
Feeding Habits ◽  
Fold Increase ◽  
Host Plant Volatiles ◽  
Management Scheme ◽  
Volatile Production

The Annonaceae fruits weevil (Optatus palmaris) causes high losses to the soursop production in Mexico. Damage occurs when larvae and adults feed on the fruits; however, there is limited research about control strategies against this pest. However, pheromones provide a high potential management scheme for this curculio. Thus, this research characterized the behavior and volatile production of O. palmaris in response to their feeding habits. Olfactometry assays established preference by weevils to volatiles produced by feeding males and soursop. The behavior observed suggests the presence of an aggregation pheromone and a kairomone. Subsequently, insect volatiles sampled by solid-phase microextraction and dynamic headspace detected a unique compound on feeding males increased especially when feeding. Feeding-starvation experiments showed an averaged fifteen-fold increase in the concentration of a monoterpenoid on males feeding on soursop, and a decrease of the release of this compound males stop feeding. GC-MS analysis of volatiles identified this compound as α-terpineol. Further olfactometry assays using α-terpineol and soursop, demonstrated that this combination is double attractive to Annonaceae weevils than only soursop volatiles. The results showed a complementation effect between α-terpineol and soursop volatiles. Thus, α-terpineol is the aggregation pheromone of O. palmaris, and its concentration is enhanced by host-plant volatiles.

scholarly journals Using the Mark-and-Release Method in the Estimation of Adult Population of Sweet Potato Weevil, Cylas formicarius (Fabricius) in a Sweet Potato Field

1994 ◽  
Vol 29 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Tuyosi SUGIMOTO ◽  
Yasuyuki SAKURATANl ◽  
Osamu SETOKUCHI ◽  
Takahiro KAMIKADO ◽  
Keiji KIRITANI ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Adult Population ◽  
Potato Field ◽  
Cylas Formicarius ◽  
Sweet Potato Weevil ◽  
Release Method

scholarly journals Behavioural response of the malaria vector Anopheles gambiae to host plant volatiles and synthetic blends

2012 ◽  
Vol 5 (1) ◽  
pp. 234 ◽  
Author(s):  
Vincent O Nyasembe ◽  
Peter E A Teal ◽  
Wolfgang R Mukabana ◽  
James H Tumlinson ◽  
Baldwyn Torto
Keyword(s):  
Anopheles Gambiae ◽  
Host Plant ◽  
Malaria Vector ◽  
Plant Volatiles ◽  
Behavioural Response ◽  
Host Plant Volatiles
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