Synthesis and activity of 3-oxo-α-ionone analogs as male attractants for the solanaceous fruit fly, Bactrocera latifrons (Diptera: Tephritidae)

2021 ◽  
Author(s):  
Yukihiro Yoshida ◽  
Dai Haraguchi ◽  
Rie Ukuda-Hosokawa ◽  
Tsunaki Andou ◽  
Takashi Matsuyama ◽  
...  
Keyword(s):  
Fruit Fly ◽  
Optical Isomers ◽  
Naturally Occurring ◽  
Bactrocera Latifrons ◽  
Male Lures

Abstract A series of 3-oxygenated α-ionone analogs have been developed as highly specific male lures for the solanaceous fruit fly Bactrocera latifrons, a pest of solanaceous fruits. We compared the attractant and phagostimulant activities of analogs with or without (i) unsaturations at the 4,5- and/or 7,8-positions and (ii) oxygen moieties at the 3- and/or 9-positions of the ionone molecule. Since naturally occurring vomifoliol (V2) was found to induce a highly potent phagostimulant activity in B. latifrons males, related analogs including, dehydrovomifoliol (V1), 6-hydroxy-α-ionone (U1) and 6-hydroxy-α-ionol (U2) were synthesized to evaluate their attractant and phagostimulant activities. Synthetic V1, V2, U1 and U2 exhibited low attractant activity, but their phagostimulant activity was relatively high. Optical isomers of 3-oxo-7,8-dihydro-α-ionone (P3) and V1 were prepared to examine the stereochemical specificity of attractants. (+)-(6R)-P3 and (+)-(6S)-V1 exhibited the corresponding activities, while their respective antipodal enantiomers were found entirely inactive.

scholarly journals APLIKASI BEBERAPA EKSTRAK TANAMAN SEBAGAI BAHAN PERANGKAP LALAT BUAH (Bactrocera sp.)

AGRICA ◽  
2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Sri Wahyuni ◽  
Petrus Deornay
Keyword(s):  
Plant Extract ◽  
Diversity Index ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Seed Extract ◽  
Average Value ◽  
Bactrocera Latifrons

Application Some Extracts of plant as Trap Material of Fruit Flies (Bactrocera sp). This study aims to determine: 1) the ability of Pala, Basil and Clove seed extract as a trap material for Bactrocera sp. 2) the best plant extract as a trap material for Bactrocera sp. The extraction activity was carried out at the Laboratory of the Faculty of Agriculture, University of Flores, while the fruit fly trap installation was carried out in Ndengga Rongge Village (± 913 m asl) and Lokoboko (± 698 m asl) in Ende Regency. The study was conducted for 3 months, namely in April - June 2018. Observation variables used included the types of fruit fly found in the field and calculated the level of diversity, abundance and dominance of pests and the capture power of each trap in the type of extraction. There are three types of fruit flies trapped in 3 types of attractants in tomato plantations, namely Bactrocera papaya, Bactrocera umbrosa Fabricius and Bactrocera latifrons Handel.  Diversity index of Bactrocera sp. in the research location is still relatively low.  The highest abundance is B.papayae with the average value of H '= 1.86 and the lowest is  B.latifros (H’= 0,07). There is no dominance of type at research location which indicates that the condition of the ecosystem is still stable. Nutmeg extract is the best attractant trap material as an attractant material in field flies

The effect of abscisic acid and abscisic acid metabolites on the germination of cress seed

1992 ◽  
Vol 70 (8) ◽  
pp. 1550-1555 ◽  
Author(s):  
L. V. Gusta ◽  
B. Ewan ◽  
M. J. T. Reaney ◽  
S. R. Abrams
Keyword(s):  
Abscisic Acid ◽  
Seed Germination ◽  
Optical Isomers ◽  
Phaseic Acid ◽  
Naturally Occurring ◽  
Maximum Inhibition ◽  
Cress Seed ◽  
Acid Metabolites ◽  
Aba Analogs ◽  
Optically Pure

Optical isomers of abscisic acid (ABA) and racemic mixtures of both abscisic acid and abscisic acid metabolites were studied to determine their effects on the emergence of root primordia and cotyledons from cress seed. The relative emergence sensitivity of cress seed to the racemic compounds was (±)-ABA aldehyde ≥ (±)-ABA alcohol > (±)-ABA > (±)7′-hydroxy ABA > (±)-phaseic acid. Thus ABA and ABA precursors were effective inhibitors whereas the ABA catabolites, phaseic acid, and 7′-hydroxy ABA had little or no effect on germination. The naturally occurring optically pure enantiomer (+)ABA was a more potent germination inhibitor than synthetic (−)-ABA. An ABA analog, 2′,3′-cis dihydro ABA (DHABA), that is not metabolized to phaseic acid was also studied for inhibitory activity. Although optically pure DHABA has the same configuration at C-1 as (+)-ABA, it was less inhibitory than (+)-ABA and its (−) enantiomer was inactive. The pattern of activity observed in treatments with the enantiomers of DHABA indicates that the configuration at C-1′ is important for maximum inhibition of cress seed germination. It also suggests that in contrast to monocot seeds, the formation of phaseic acid is not required for the inhibition of cress seed germination. Key words: abscisic acid, phaseic acid, ABA alcohol, ABA aldehyde, 7′OHABA, germination, ABA analogs.

scholarly journals Six years of fruit fly surveys in Bangladesh: a new species, 33 new country records and discovery of the highly invasive Bactrocera carambolae (Diptera, Tephritidae)

ZooKeys ◽  
2019 ◽  
Vol 876 ◽  
pp. 87-109 ◽  
Author(s):  
Luc Leblanc ◽  
M. Aftab Hossain ◽  
Camiel Doorenweerd ◽  
Shakil Ahmed Khan ◽  
Mahfuza Momen ◽  
...  
Keyword(s):  
New Species ◽  
New Records ◽  
Fruit Fly ◽  
Methyl Eugenol ◽  
Bactrocera Carambolae ◽  
Rural Environments ◽  
Fruit Fly Parasitoids ◽  
A New Species ◽  
Male Lures ◽  
Occurrence Records

We engaged in six years of snap-shot surveys for fruit flies in rural environments and ten protected forest areas of Bangladesh, using traps baited with male lures (cue-lure, methyl eugenol, zingerone). Our work has increased the recorded number of species of Tephritidae in the country from seven to 37. We summarize these surveys and report eight new country occurrence records, and a new species (Zeugodacus madhupuri Leblanc & Doorenweerd, sp. nov.) is described. The highlight among the new records is the discovery, and significant westward range extension, of Bactrocera carambolae Drew & Hancock, a major fruit pest detected in the Chattogram and Sylhet Divisions. We rectify the previously published erroneous record of Bactrocera bogorensis (Hardy), which was based on a misidentification of Zeugodacus diaphorus (Hendel). We also report the occurrence in Bangladesh of nine other Tephritidae, the rearing of three primary fruit fly parasitoids from Zeugodacus, and records of non-target attraction to fruit fly lures.

scholarly journals Elecroantennogram Responses of the Cherry Fruit Fly Rhαgoletis cerαsi (Diptera: Tephritidae) to Naturally Occurring Volatiles

2017 ◽  
Vol 12 ◽  
pp. 31 ◽  
Author(s):  
D. Raptopoulos ◽  
A. Koutsaftikis ◽  
G. Haniotakis ◽  
E. Douma
Keyword(s):  
Functional Groups ◽  
Organic Compounds ◽  
Chain Length ◽  
Plant Volatiles ◽  
Fruit Fly ◽  
Carbon Chain ◽  
Carbon Chain Length ◽  
Naturally Occurring ◽  
Males And Females ◽  
Rhagoletis Cerasi

EAG responses of the cherry fruit fly, Rhagoletis cerasi (Linne) (Diptera: Tephritidae) were recorded in response to seventy-eight generally occurring plant volatiles and male cherry fruit fly volatiles. The test compounds are representatives of three major classes of organic compounds, aldehydes, ketones, and monoterpenes. No differences were observed in the degree of response between males and females, Carbon-chain length, unsaturation, and position of functional groups all have significant effect on the magnitude of EAG response.

scholarly journals The Dacini fruit fly fauna of Sulawesi fits Lydekker’s line but also supports Wallacea as a biogeographic region (Diptera, Tephritidae)

ZooKeys ◽  
2020 ◽  
Vol 973 ◽  
pp. 103-122
Author(s):  
Camiel Doorenweerd ◽  
Arni Ekayanti ◽  
Daniel Rubinoff
Keyword(s):  
New Species ◽  
Fruit Fly ◽  
Species Level ◽  
Strong Connection ◽  
Biogeographic Region ◽  
Biogeographic Regions ◽  
High Level ◽  
Interesting Species ◽  
A New Species ◽  
Male Lures

Although there is scientific consensus on most of the major biogeographic regions in the world, the demarcation of the area connecting Southeast Asia with Australia and Oceania remains debated. Two candidate boundaries potentially explain faunistic diversity patterns in the regions: Lydekker’s and Wallace’s lines. The islands in between both ‘lines’ are jointly termed Wallacea, with Sulawesi as the largest landmass. We surveyed Dacini fruit flies (Tephritidae: Dacinae) in Sulawesi between 2016 and 2019 using traps baited with male lures, resulting in 4,517 collected flies. We identified all specimens to species level, which adds 15 new species records to the island, bringing the total number of Dacini species in Sulawesi to 83. The biogeographic affinity of species in the updated checklist reveals a strong connection with former ‘Sunda’ (41% of species); validating Lydekker’s line, but also a high level of endemism (47% of species), confirming the uniqueness of Wallacea as a biogeographic region. We further describe a new species, Bactrocera (Bactrocera) niogreta Doorenweerd, sp. nov. and discuss the taxonomy of several interesting species.

Response of Male Queensland Fruit Fly (Diptera: Tephritidae) to Host Fruit Odors

2020 ◽  
Vol 113 (4) ◽  
pp. 1888-1893
Author(s):  
Mst Shahrima Tasnin ◽  
Rehan Silva ◽  
Katharina Merkel ◽  
Anthony R Clarke
Keyword(s):  
Applied Research ◽  
Fruit Fly ◽  
Bactrocera Tryoni ◽  
Male Response ◽  
Fruit Volatiles ◽  
Host Fruit ◽  
Age Dependent ◽  
Fruit Odor ◽  
Basic And Applied Research ◽  
Male Lures

Abstract The surveillance and management of Dacini fruit fly pests are commonly split by fly gender: male trapping focuses on the dacine ‘male-lures’, whereas female trapping focuses on lures based on host-fruit volatiles. Although the males of several Dacini species have been reported to be attracted to host fruit volatiles, the option of using host-fruit traps for males has, to date, been ignored. Males of the cue-lure responsive fruit fly Bactrocera tryoni (Froggatt) have been recorded as responding to host-fruit volatile blends, but it is not known how frequently this happens, if it is age-dependent, or the strength of the response relative to cue-lure throughout the year. Here, we conducted an olfactometer experiment to test the lifetime (weeks 1–15) response of B. tryoni males to the odor of tomato, a known host of this fly, and compare catches of wild males to tomato-based traps and cue-lure traps in the field. Bactrocera tryoni males started to respond to tomato odor as they sexually matured (2 to 3 wk olds) and thereafter showed consistent olfactory response until advanced age (15 wk). In the field, wild males were captured by tomato-based traps throughout the year at a level not significantly different from cue-lure traps. The reason for the consistent B. tryoni male response to host fruit odor at this stage is not known, but it certainly occurs at a level greater than can be continued to be ignored for both basic and applied research.

scholarly journals A single nucleotide variant in the PPARγ-homolog Eip75B affects fecundity in Drosophila

2021 ◽  
Author(s):  
Katja M Hoedjes ◽  
Hristina Kostic ◽  
Thomas Flatt ◽  
Laurent Keller
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Fruit Fly ◽  
Egg Laying ◽  
Nucleotide Level ◽  
Single Nucleotide ◽  
Complex Phenotypes ◽  
Naturally Occurring ◽  
Natural Polymorphism

ABSTRACTStill little is understood about the nucleotide changes that underlie variation in complex phenotypes. Variation in the PPARγ-homolog Eip75B has previously been suggested to be associated with longevity and life-history differences in the fruit fly Drosophila melanogaster. Using RNAi knockdown, we first demonstrate that reduced expression of Eip75B in adults affects lifespan, egg laying rate and egg volume. To then test the effect of a naturally occurring SNP variant within a cis-regulatory domain of Eip75B, we screened wildtype lines with alternative alleles and conducted precise genome editing using CRISPR/Cas9. These experiments revealed that this natural polymorphism has a significant effect on fecundity and egg-to-adult viability, but not on longevity or other life-history traits. These results provide a rare functional validation for the role of a natural allelic variant in adaptation of life-history traits directly linked to fitness at the single nucleotide level.

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