Rectal gland ofBactrocera papayae: Ultrastructure, anatomy, and sequestration of autofluorescent compounds upon methyl eugenol consumption by the male fruit fly

2005 ◽  
Vol 67 (5) ◽  
pp. 219-226 ◽  
Author(s):  
Cynthia C.H. Khoo ◽  
Keng Hong Tan
Keyword(s):  
Fruit Fly ◽  
Methyl Eugenol ◽  
Rectal Gland

Bioactive fractions containing methyl eugenol-derived sex pheromonal components in haemolymph of the male fruit fly Bactrocera dorsalis (Diptera: Tephritidae)

2005 ◽  
Vol 95 (6) ◽  
pp. 615-620 ◽  
Author(s):  
A.K.W. Hee ◽  
K.H. Tan
Keyword(s):  
Mass Spectrometry ◽  
Gel Filtration ◽  
Fruit Fly ◽  
Coniferyl Alcohol ◽  
Methyl Eugenol ◽  
Bactrocera Dorsalis ◽  
Gas Chromatography Mass Spectrometry ◽  
Rectal Gland ◽  
Elution Profile ◽  
Male Attractant

AbstractSex pheromonal components of the tephritid fruit fly Bactrocera dorsalis (Hendel), 2-allyl-4,5-dimethoxyphenol and (E)-coniferyl alcohol, are biosynthesized from a highly potent male attractant, methyl eugenol, then sequestered and stored in the rectal gland prior to their release during courtship at dusk. These sex pheromonal components have been detected in the haemolymph and crop organ. Hence, attempts were made to separate and identify the haemolymph fractions which contained the sex pheromonal components. Identification of these bioactive fractions in methyl eugenol-fed male flies using gel filtration column chromatography and biodetection using live male flies showed two fractions as highly attractive to conspecific males. These fractions show a significant increase in protein absorbance in the elution profile of haemolymph from methyl eugenol-fed males compared with that from methyl eugenol-deprived males. The molecular mass of these bioactive fractions as determined by using gel filtration was in the peptide range of 3.3 to 5.5 kDa. Subsequent gas chromatography–mass spectrometry analyses further confirmed the presence of the pheromonal components in the bioactive fractions. The presence of these methyl eugenol-derived sex pheromonal components in specific haemolymph fractions suggests the involvement of a sex pheromone binding complex.

scholarly journals Evaluation of Cue-Lure and Methyl Eugenol Solid Lure and Insecticide Dispensers for Fruit Fly (Diptera: Tephritidae) Monitoring and Control in Tahiti

2011 ◽  
Vol 94 (3) ◽  
pp. 510-516 ◽  
Author(s):  
Luc Leblanc ◽  
Roger I. Vargas ◽  
Bruce MacKey ◽  
Rudolph Putoa ◽  
Jaime C. Piñero
Keyword(s):  
Fruit Fly ◽  
Methyl Eugenol ◽  
Monitoring And Control ◽  
And Control

scholarly journals Seasonal Abundance and Infestation of Fruit Fly on Cucumber

2021 ◽  
Vol 18 (2) ◽  
pp. 233-241
Author(s):  
S Nahid ◽  
MR Amin ◽  
MM Haque ◽  
SJ Suh
Keyword(s):  
Relative Humidity ◽  
Light Intensity ◽  
Meteorological Factors ◽  
Fruit Fly ◽  
Methyl Eugenol ◽  
Seasonal Abundance ◽  
Bactrocera Cucurbitae ◽  
Larval Population ◽  
Weather Parameters ◽  
Positive Light

Population dynamics and infestation of fruit fly, Bactrocera cucurbitae Coquillett (Diptera: Tephritidae) was monitored on cucumber, Cucumis sativus using methyl eugenol trap during summer and autumn in 2017 at Gazipur, Bangladesh. Relationship between the abundance of fruit fly and meteorological factors was also studied. The fruit fly showed significantly higher abundance in summer compared to autumn. The larval population per fruit was found higher in summer (24.9 fruit-1) than that in autumn (1.5 fruit-1). The daily mean temperature had significant positive, light intensity had insignificant positive, relative humidity had insignificant negative and rainfall had insignificant negative correlation with fruit fly abundance. The temperature, light intensity, relative humidity and rainfall individually contributed to fruit fly abundance of 14.1 %, 24.0 %, 0.8 % and 1.8 %, respectively. The combined effect of the weather parameters on fruit fly abundance was 40.7 % and the equations were insignificant. The fruit fly showed significantly lower level of infestation in methyl eugenol treated plots as compared to controls in both summer and autumn. SAARC J. Agri., 18(2): 233-241 (2020)

Materials and methods.

2022 ◽  
pp. 5-5
Author(s):  
Richard A. I. Drew ◽  
Meredith C. Romig
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Fruit Fly ◽  
Methyl Eugenol ◽  
Microscopic Identification ◽  
Host Fruit ◽  
Large Numbers ◽  
Wide Range

Abstract Large numbers of dacine specimens were collected throughout Papua New Guinea by trapping and host fruit sampling. Steinertype fruit fly traps, baited with cue lure, methyl eugenol or vanillylacetone (zingerone), were set in many localities over a wide range of ecosystems. In most cases, the traps were serviced on 2-week cycles for at least 1 year. Samples of rainforest and cultivated fruits were collected in some provinces. All specimens collected were preserved in a dry state and sent to R.A.I. Drew at Griffith University, Brisbane, Australia, for microscopic identification and curation. Data and photographs of Bactrocera longicornis were received from the Museum Nationale d'Histoire Naturelle, Paris, France. The subgeneric classification used herein follows Drew and Hancock (2016) and Hancock and Drew (2006, 2015, 2016, 2017a,b,c,d,e, 2018a,b,c, 2019).

Chemical Composition of the Rectal Gland and Volatiles Released by Female Queensland Fruit Fly, Bactrocera tryoni (Diptera: Tephritidae)

2019 ◽  
Vol 48 (4) ◽  
pp. 807-814 ◽  
Author(s):  
Ashraf M El-Sayed ◽  
Uppala Venkatesham ◽  
C Rikard Unelius ◽  
Andrew Sporle ◽  
Jeanneth Pérez ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Chemical Analysis ◽  
Fruit Fly ◽  
Gland Secretion ◽  
Rectal Gland ◽  
Bactrocera Tryoni ◽  
Headspace Volatiles ◽  
Ethyl Palmitate ◽  
Minor Compounds

Abstract The composition of the rectal gland secretion and volatiles emitted by female Queensland fruit fly, Bactrocera tryoni was investigated. Esters were found to be the main compounds in the gland extracts and headspace, while amides were the minor compounds in the gland extracts and headspace. Ethyl dodecanoate, ethyl tetradecanoate, ethyl (Z9)-hexadecenoate and ethyl palmitate were the main esters in the gland extracts, while ethyl dodecanoate and ethyl tetradecanoate were the main esters in the headspace. Four amides (N-(3-methylbutyl)acetamide), N-(2-methylbutyl)propanamide, N-(3-methylbutyl)propanamide, and N-(3-methylbutyl)-2-methylpropanamide were found in the gland extracts and the headspace. Among the amides, N-(3-methylbutyl)acetamide and N-(3-methylbutyl)propanamide were the main amides in the gland extracts and the headspace. Traces of three spiroacetals were found both in the gland extracts and in the headspace. (E,E)-2,8-Dimethyl-1,7-dioxaspiro[5.5]undecane, (E,E)-2-ethyl-8-methyl-1,7-dioxaspiro[5.5]undecane, (E,E)-2-propyl-8-methyl-1,7-dioxaspiro[5.5]undecane. All compounds found in the headspace were present in the extract of the rectal gland suggesting that the rectal gland is the main source of the headspace volatiles, whose function remains to be elucidated. This is the first comprehensive chemical analysis of the rectal gland secretions and volatiles of female B. tryoni, and further laboratory and field bioassays are required to determine the function of compounds identified in this study. Discovery of the same amides previously identified in the male rectal gland in the female rectal gland raises questions about the pheromonal role previously suggested for these compounds.

scholarly journals Identification and synthesis of new sex-specific components of olive fruit fly (Bactrocera oleae) female rectal gland, through original Negishi reactions on supported catalysts

Tetrahedron ◽  
2018 ◽  
Vol 74 (33) ◽  
pp. 4381-4389
Author(s):  
Graziano Fusini ◽  
Davide Barsanti ◽  
Gaetano Angelici ◽  
Gianluca Casotti ◽  
Angelo Canale ◽  
...  
Keyword(s):  
Supported Catalysts ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Rectal Gland ◽  
Olive Fruit Fly ◽  
Olive Fruit
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