scholarly journals Male Approach to the Female and the Role of Two Pheromone Components in the Potato Tuber Moth, Phthorimaea operculella (Lepidoptera : Gelechiidae)

1985 ◽  
Vol 20 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Tomohiro ONO
Keyword(s):  
Potato Tuber ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Pheromone Components

scholarly journals Identification and Functional Characterization of Two Putative Pheromone Receptors in the Potato Tuber Moth, Phthorimaea operculella

2021 ◽  
Vol 11 ◽  
Author(s):  
Xiaoli He ◽  
Yajie Cai ◽  
Jinglei Zhu ◽  
Mengdi Zhang ◽  
Yadong Zhang ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Potato Tuber ◽  
Expression System ◽  
Functional Characterization ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Sex Pheromone Components ◽  
Lepidopteran Insects ◽  
Pheromone Components ◽  
Receptor Neurons

Pheromones are a kind of signal produced by an animal that evoke innate responses in conspecifics. In moth, pheromone components can be detected by specialized olfactory receptor neurons (OSNs) housed in long sensilla trichoids on the male antennae. The pheromone receptors (PRs) located in the dendrite membrane of OSNs are responsible for pheromone sensing in most Lepidopteran insects. The potato tuber moth Phthorimaea operculella is a destructive pest of Solanaceae crops. Although sex attractant is widely used in fields to monitor the population of P. operculella, no study has been reported on the mechanism the male moth of P. operculella uses to recognize sex pheromone components. In the present study, we cloned two pheromone receptor genes PopeOR1 and PopeOR3 in P. operculella. The transcripts of them were highly accumulated in the antennae of male adults. Functional analysis using the heterologous expression system of Xenopus oocyte demonstrated that these two PR proteins both responded to (E, Z)-4,7–13: OAc and (E, Z, Z)-4,7,10–13: OAc, the key sex pheromone components of P. operculella, whilst they responded differentially to these two ligands. Our findings for the first time characterized the function of pheromone receptors in gelechiid moth and could promote the olfactory based pest management of P. operculella in the field.

Expression of various biotin-binding proteins in transgenic tobacco confers resistance to potato tuber moth, Phthorimaea operculella (Zeller) (fam. Gelechiidae)

2010 ◽  
Vol 19 (6) ◽  
pp. 1041-1051 ◽  
Author(s):  
Colleen Murray ◽  
Ngaire P. Markwick ◽  
Ryohei Kaji ◽  
Joanne Poulton ◽  
Harry Martin ◽  
...  
Keyword(s):  
Potato Tuber ◽  
Transgenic Tobacco ◽  
Binding Proteins ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Biotin Binding

scholarly journals Characterization and RNAi-mediated knockdown of Chitin Synthase A in the potato tuber moth, Phthorimaea operculella

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Ahmed M. A. Mohammed ◽  
Mervat R. Diab ◽  
Mohamed Abdelsattar ◽  
Sayed M. S. khalil
Keyword(s):  
Potato Tuber ◽  
Phthorimaea Operculella ◽  
Chitin Synthase ◽  
Potato Tuber Moth

Determining the number of instars in potato tuber moth Phthorimaea operculella (Zeller) using density‐based DBSCAN clustering

2019 ◽  
Vol 143 (10) ◽  
pp. 1080-1088 ◽  
Author(s):  
Yaqiang Zheng ◽  
Wenqian Wang ◽  
Bin Chen ◽  
Limin Zhang ◽  
Souksamone Phangthavong ◽  
...  
Keyword(s):  
Potato Tuber ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Dbscan Clustering

Resistance of four potato varieties to the potato tuber moth, phthorimaea operculella (zell.) in storage

1985 ◽  
Vol 6 (2) ◽  
pp. 205-207 ◽  
Author(s):  
M. F. O. Ojero ◽  
J. M. Mueke
Keyword(s):  
Potato Tuber ◽  
Phthorimaea Operculella ◽  
The Other ◽  
Resistant Variety ◽  
Potato Tuber Moth ◽  
Potato Varieties ◽  
Mechanism Of Resistance ◽  
The Mean

AbstractInsect-free tubers of four potato varieties, namely Kenya Baraka, Anett, Kerrs Pink and Roslin Gucha were exposed to adult Phlhorimaea operculella for 14 days in uncontrolled conditions in storages. On examination of the tubers 16 days after exposure, the percentage of infested tubers was determined: Kenya Baraka—62.50, Anett—77.50, Kerrs Pink—85.00 and Roslin Gucha—86.25%. The larvae made the following mean tunnel lengths: 44.65, 95.33, 88.33 and 104.23 cm in Kenya Baraka, Anett, Kerrs Pink and Roslin Gucha varieties, respectively. Although there were no statistically significant differences in the number of tubers infested (per cent), there were significant differences in the mean length of tunnels made by the larvae in Kenya Baraka and the other three varieties at P < 0.05. The mean number of larvae which survived in 10 tubers were 6.75, 11.25, 15.75 and 18.00 for Kenya Baraka, Anett, Kerrs Pink and Roslin Gucha varieties, respectively. There were statistically significant differences between Kenya Baraka and Kerrs Pink; Kenya Baraka and Roslin Gucha; and Roslin Gucha and Anett varieties (P < 0.05). Thus Roslin Gucha was the least resistant of the four varieties tested, whereas Kenya Baraka emerged as the most resistant variety. The mechanism of resistance in this case was most probably antibiosis.

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