scholarly journals Field Bioassay for Longhorn Pine Sawyer Beetle Monochamus alternatus (Coleoptera: Cerambycidae) in Korea Based on Aggregation Pheromone 2-(Undecyloxy)ethanol

2015 ◽  
Vol 25 (12) ◽  
pp. 1445-1449 ◽  
Author(s):  
Sung-Min Lee ◽  
Do Kyung Hong ◽  
Jongseong Park ◽  
Jinho Lee ◽  
Sei-Heon Jang ◽  
...  
Keyword(s):  
Aggregation Pheromone ◽  
Monochamus Alternatus ◽  
Field Bioassay

A Male-Produced Aggregation Pheromone of Monochamus alternatus (Coleoptera: Cerambycidae), a Major Vector of Pine Wood Nematode

2011 ◽  
Vol 104 (5) ◽  
pp. 1592-1598 ◽  
Author(s):  
Stephen A. Teale ◽  
Jacob D. Wickham ◽  
Feiping Zhang ◽  
Jun Su ◽  
Yi Chen ◽  
...  
Keyword(s):  
Aggregation Pheromone ◽  
Pine Wood Nematode ◽  
Monochamus Alternatus ◽  
Pine Wood

IDENTIFICATION OF AN AGGREGATION PHEROMONE FOR PITYOGENES HOPKINSI (COLEOPTERA: SCOLYTIDAE)

2000 ◽  
Vol 132 (6) ◽  
pp. 951-963 ◽  
Author(s):  
G. Birgersson ◽  
M.J. Dalusky ◽  
C.W. Berisford
Keyword(s):  
Aggregation Pheromone ◽  
Inhibitory Effect ◽  
Pheromone Component ◽  
Field Bioassay ◽  
Component Mixture ◽  
Male Response ◽  
Biologically Relevant ◽  
Pheromone Components ◽  
Attack Phase ◽  
Pheromone Blend

AbstractThe aggregation pheromone of Pityogenes hopkinsi Swaine was identified; it is a three-component mixture, comprising chalcogran, cis-verbenol, and ethyl dodecanoate. Ethyl dodecanoate is new as a bark beetle pheromone component. Chemical analyses (GC–MS) were made on hindgut extracts from unmated and mated males and mated females collected in the field during colonization of Pinus strobus L. (Pinaceae). Aerations from the naturally colonized logs were also analyzed to quantify the released amounts of the pheromone components, a necessary preliminary step to making up biologically relevant doses for field bioassay. Beetles reared from infested host material in the laboratory were introduced into logs of P. strobus, and the production and release of pheromone components in relation to attack phase and "mating status" were described. In general, unmated males increased their production of chalcogran and ethyl dodecanoate until females were admitted, after which production ceased. A field subtractive bioassay showed that chalcogran was the key pheromone component, synergized by different compounds for the two sexes. Females exhibited their strongest response to a mixture of chalcogran and ethyl dodecanoate, whereas cis-verbenol was the synergist for male response. Male-produced 1-hexanol had an inhibitory effect on male attraction to the aggregation-pheromone blend.

scholarly journals Initial Location Preference Together with Aggregation Pheromones Regulate the Attack Pattern of Tomicus brevipilosus (Coleoptera: Curculionidae) on Pinus kesiya

Forests ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 156 ◽  
Author(s):  
Fu Liu ◽  
Chengxu Wu ◽  
Sufang Zhang ◽  
Xiangbo Kong ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Aggregation Pheromone ◽  
Early Stage ◽  
Gas Chromatography Mass Spectrometry ◽  
Aggregation Pheromones ◽  
Initial Attack ◽  
Top Down ◽  
Field Bioassay ◽  
Attack Pattern ◽  
Initial Location ◽  
Attack Location

Research Highlights: We found that the initial attack location together with the aggregation pheromones played an important role in mediating the aggressive behavior of T. brevipilosus on P. kesiya. Background and Objectives: T. brevipilosus was identified as an aggressive species, which possesses the ability to kill live, healthy P. kesiya. In this scenario, we study the top-down attack pattern of T. brevipilosus on P. kesiya during the entirety of the reproductive period. Materials and Methods: We investigated the phenology of trunk attack on P. kesiya over a period of three years in Pu’er City, China. The hindguts extracts of the females and males T. brevipilosus were analyzed by coupled gas chromatography-mass spectrometry (GC-MS). The candidate aggregation pheromone compounds of T. brevipilosus were determined through electrophysiology experiments (electroantennographic detection, EAD and electroantennography, EAG), laboratory olfactometer bioassays, and field trapping. Results: we found that the pioneer beetles preferentially infested the crown of P. kesiya at the early stage of attack following spring flight with the later arriving beetles selectively attacking the lower area of the trunk to avoid intraspecific competition and better utilize limited resources, which exhibits a top-down attack pattern. During gallery initiation, the beetles release aggregation pheromones to attract conspecifics to conduct a mass attack. The chemical analyses indicated that the hindgut extracts of gallery-initiating beetles contained a larger amount of myrtenol, cis-verbenol, trans-verbenol, and verbenone. Myrtenol and trans-verbenol were identified as candidate aggregation pheromone compounds. In addition, a blend of these two components with S-(−)-α-pinene and S-(−)-β-pinene attracted more T. brevipilosus individuals in a field bioassay. Conclusions: We concluded that the preference for the initial attack location together with the aggregation pheromones played an important role in mediating the top-down attack pattern of T. brevipilosus on P. kesiya.

PENELITIAN EKSTRAKSI DAN KARAKTERISASI AGGREGATION PHEROMONE DARI KECOA (Periplaneta americana L)

2008 ◽  
pp. 8-13
Author(s):  
Sri Pudji Rahayu
Keyword(s):  
Aggregation Pheromone ◽  
Periplaneta Americana

Kecoa merupakan serangga yang suka hidup ditempat terlindung, tertutup maupun lipatan-lipatan sehingga susah diberantas, akan tetapi serangga tersebut mempunyai alat komunikasi yang  digunakan untuk memanggil sesamanya untuk berkumpul yang disebut aggregation pheromone. Aggregation pheromone ini diteliti untuk dimanfaatkan sebagai salah satu cara pengendaliannya. Pada penelitian ini aggregation pheromone diteliti dengan mengekstrak kotoran kecoa dengan berbagai macam pelarut dan hasil ekstraknya diuji secara biologi ditunjukkan dengan banyaknya kecoa yang datang dan berkumpul pada ekstrak AP tersebut. Dalam penelitian ini pelarut methanol merupakan pelarut yang paling baik dalam ekstraksi AP yang ditunjukkan adanya 80% kecoa yang datang berkumpul. Dari ekstraksi tersebut setelah dianalisa dengan alat kromatografi gas diperoleh senyawa aktif yang merupakan Aggregation pheromone dari kecoa Periplaneta americana L.  Senyawa tersebut diduga periplanon A dan periplanon B dengan waktu retensi 25,417 menit dan senyawa B dengan waktu retensi 27,007 menit.

Release of aggregation pheromone rhynchophorol from clay minerals montmorillonite and kaolinite

2021 ◽  
Author(s):  
Arão Cardoso Viana ◽  
Ingrid Graça Ramos ◽  
Artur José Santos Mascarenhas ◽  
Edeilza Lopes dos Santos ◽  
Antônio Euzébio Goulart Sant’Ana ◽  
...  
Keyword(s):  
Clay Minerals ◽  
Aggregation Pheromone

(R *,S *)-5-hydroxy-4-methyl-3-heptanone male-produced aggregation pheromone ofSitophilus oryzae (L.) andS. zeamais motsch

1985 ◽  
Vol 11 (9) ◽  
pp. 1263-1274 ◽  
Author(s):  
J. K. Phillips ◽  
C. A. Walgenbach ◽  
J. A. Klein ◽  
W. E. Burkholder ◽  
N. R. Schmuff ◽  
...  
Keyword(s):  
Aggregation Pheromone

scholarly journals Mitogenome Analysis of Four Lamiinae Species (Coleoptera: Cerambycidae) and Gene Expression Responses by Monochamus alternatus When Infected with the Parasitic Nematode, Bursaphelenchus mucronatus

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 453
Author(s):  
Zi-Yi Zhang ◽  
Jia-Yin Guan ◽  
Yu-Rou Cao ◽  
Xin-Yi Dai ◽  
Kenneth B. Storey ◽  
...  
Keyword(s):  
Gene Expression ◽  
Phylogenetic Trees ◽  
Mitochondrial Gene ◽  
Mitochondrial Protein ◽  
Pine Wilt Disease ◽  
Bursaphelenchus Xylophilus ◽  
Monochamus Alternatus ◽  
Genome Database ◽  
Protein Coding ◽  
Nd5 Gene

We determined the mitochondrial gene sequence of Monochamus alternatus and three other mitogenomes of Lamiinae (Insect: Coleoptera: Cerambycidae) belonging to three genera (Aulaconotus, Apriona and Paraglenea) to enrich the mitochondrial genome database of Lamiinae and further explore the phylogenetic relationships within the subfamily. Phylogenetic trees of the Lamiinae were built using the Bayesian inference (BI) and maximum likelihood (ML) methods and the monophyly of Monochamus, Anoplophora, and Batocera genera was supported. Anoplophora chinensis, An. glabripennis and Aristobia reticulator were closely related, suggesting they may also be potential vectors for the transmission of the pine wood pathogenic nematode (Bursaphelenchus xylophilus) in addition to M. alternatus, a well-known vector of pine wilt disease. There is a special symbiotic relationship between M. alternatus and Bursaphelenchus xylophilus. As the native sympatric sibling species of B. xylophilus, B. mucronatus also has a specific relationship that is often overlooked. The analysis of mitochondrial gene expression aimed to explore the effect of B. mucronatus on the energy metabolism of the respiratory chain of M. alternatus adults. Using RT-qPCR, we determined and analyzed the expression of eight mitochondrial protein-coding genes (COI, COII, COIII, ND1, ND4, ND5, ATP6, and Cty b) between M. alternatus infected by B. mucronatus and M. alternatus without the nematode. Expression of all the eight mitochondrial genes were up-regulated, particularly the ND4 and ND5 gene, which were up-regulated by 4–5-fold (p < 0.01). Since longicorn beetles have immune responses to nematodes, we believe that their relationship should not be viewed as symbiotic, but classed as parasitic.

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