Kairomones ofheliothis armigera andcorcyra cephalonica and their influence on the parasitic potential oftrichogramma chilonis (Trichogrammatidae: hymenoptera)

Ananthakrishnan, T. N.; Senrayan, R.; Murugesan, S.; Annadurai, R. S.

doi:10.1007/bf02703363

Cited by 21 publications

(21 citation statements)

References 13 publications

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“…The results of the present study are in agreement with the report of Ananthakrishnan et al (1991), who reported a number of compounds including hexatriacontane, pentacosane, heptadecane and docosane from the scales of C. cephalonica moths. Many of the compounds present could not be identified.…”

Section: Discussionsupporting

confidence: 93%

“…Healthy 0 to 24-h-old male and female moths were collected separately from the mass culturing facility of the Biocontrol Laboratory of the Division of Entomology, Indian Agricultural Research Institute, New Delhi and placed in a freezer at -20°C for 10 minutes to reduce activity so as to obtain body washings using hexane as described by Ananthakrishnan et al (1991). Scales of C. cephalonica were collected from oviposition cages using a vacuum cleaner and extraction was carried out in a similar manner.…”

Section: Methodsmentioning

confidence: 99%

“…Ananthakrishnan et al (1991) observed that the ditrophic and tritrophic level interactions involving host plants, host insects and entomophages are mediated predominantly by chemical cues in the organisms' environment which affect their behaviour or physiology. Ananthakrishnan et al (1991) observed that the ditrophic and tritrophic level interactions involving host plants, host insects and entomophages are mediated predominantly by chemical cues in the organisms' environment which affect their behaviour or physiology.…”

Section: Introductionmentioning

confidence: 99%

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Kairomonal Effects of Different Host Body Washings on Parasitism by Trichogramma brasiliensis and T. japonicum

Paul

Sudan

Singh

1997

Int. J. Trop. Insect Sci.

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Bioassays were carried out in Petri dishes with body washings of larvae, male and female moths and scale extract of Corcym cephalonica St. in hexane to observe their kairomonal effect on Trichogramma brasiliensis (Ashmead) and T. japonicum Ashmead. The mean parasitoid activity index (PAI) and mean parasitisation were recorded. Trichogramma brasiliensis and T. japonicum recorded the highest mean parasitisation in the eggs treated with scale extract. Mean parasitisation recorded by T. japonicum in cards treated with female moth and male moth body washings were considerably lower than the corresponding values for T. brasiliensis. Both the parasitoids recorded significantly lower levels of parasitisation in cards treated with larval body washings. Gas chromatographs of host body washings / extract recorded a large number of similar hydrocarbons in the body washings of male and female moths and the scale extract. Pentadecane, heneicosane, eicosane, tetracosane, pentacosane and hexacosane were recorded in scale extracts. Female moth body washings recorded the presence of eicosane, tetracosane and pentacosane while heneicosane and eicosane were indicated in the male moth body washings.

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Section: Discussionsupporting

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kairomonal Effects of Different Host Body Washings on Parasitism by Trichogramma brasiliensis and T. japonicum

Paul

Sudan

Singh

1997

Int. J. Trop. Insect Sci.

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“…The scale extracts at 1 ae/ml elicited higher responses than the leaf extracts at 10 gle/ml and even certain chemicals such as b-myrcene, S-()) limonene and b-pinene in females, besides a-pinene in males, which are part of the complex blend of chemicals released in cotton after herbivore damage. It also emphasizes the significance of host related odors in the parasitization efficiency of T. chilonis (Lewis et al, 1972;Ananthakrishnan et al, 1991). Studies have indicated increased rates of parasitism by Trichogramma spp., in the presence of volatile chemicals emanating from female moth scales (Lewis et al, 1982).…”

Section: Discussionmentioning

confidence: 96%

Response of Trichogramma chilonis to infochemicals: an SEM and electrophysiological investigation

et al. 2005

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The external morphology and peripheral olfactory responses of antennal chemoreceptors of Trichogramma chilonis Ishii (Hymenoptera:Trichogrammatidae) to host related stimuli were examined by SEM and EAG technique respectively. The antennae of male and female T. chilonis reveal strong sexual dimorphism in structure as well as in types, density and distribution of individual sensillar types. The female antennae are characterized by the presence of a single uniporous sensilla on the apical tip of the dome and numerous multiporous pitted sensilla. Sensilla common to both males and females include the multiporous plate sensilla, the peg sensilla and trichoid sensilla. Differences between males and females occur with respect to their EAG profiles to 22 chemicals commonly found in plants viz.leaf extracts of three host plants of Helicoverpa armigera (cotton, chickpea and pigeon pea) and hexane scale extracts of adult males and females of H. armigera. Individually, the largest peak amplitudes in females were obtained with citronellal, phytol, caryophyllene, R-(+)-limonene, linalool, carvacrol and citronellol while in males citronellol, caryophyllene, linalool, R-(+)-limonene and amyl acetate caused the highest response. Among the different chemical classes, the largest peak amplitudes in females were obtained with oxygenated monoterpenes, while in males, fatty acid derivatives caused the highest response. In both males and females, the hydrocarbon monoterpenes caused the least response. Thus, the wide spectrum response of Trichogramma chilonis, to a wide group of chemicals belonging to different chemical classes, though varying, nevertheless suggests that using plant information enhances its parasitization efficiency.

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“…7-Hexadecenal with the following biological activity: used for treating patients with diabetes, by increasing the secretion of insulin in the body (Turgumbayeva et al, 2015), it is found in the liver of sheep and thus attractive to wolves and used in hunting wild animals (Scrivner et al, 1984), has Luminous Bacteria "Aldehydeless" Dark Mutant (Shimomura et al, 1974); 5. Tricosene which has kairomone effect (Ananthakrishnan et al, 1991).…”

Section: Induction Of Biochemical Active Constituents From Jojoba Callusmentioning

confidence: 99%

Induction of biochemical active constituents of Jojoba (Simmondsia chinensis (Link) Schneider) callus affected by hormones

Solliman¹,

Shehata²,

Mohasseb³

et al. 2017

J. Med. Plants Res.

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The present study aimed to identify some metabolites products obtained from different jojoba callus tissue extracts using gas chromatography/mass spectrometry analysis (GC-MS). It is known that Jojoba, a medicinal and oil-yielding, has multi-purpose uses. In addition, it produces toxins, fatty acids, phenolic compounds and other secondary metabolites from callus identified using GC-MS. Despite the direct effect of 2,4-D on directing the explant towards callus induction, it has interaction effect with Kin and achieves hormonal balance inside the explant. There is a significant interaction effect between Kin and 2,4-D. The increased concentration of both Kin and 2,4-D raises the extent of nodal segments response towards proliferation, development, and callus induction. Our results showed that the interaction effect between Kin and 2,4-D is the best results for phytochemical active constituents formation achieved from callus cultured. Qualitative results revealed that increasing cytokinins Kin concentration leads to slightly double increase in active constituents from the explants for Triodecanoic and Methoxyacetic acids. While, the gradual increase of 2,4-D to 2.0 mg l -1 caused a single increase in active constituents for Triodecanoic, Methoxyacetic and Octadecanoic acid, respectively. On the other hand, Decanoic acid has no effect by adding both hormones (Kin and 2,4-D) and also Octadecanoic acid when kin is added. Also, there is a direct relation between the development of callus and reproduction of active phytochemical constituents, which increase qualitatively by increasing callus development and 2,4-D hormone concentration at 2 mg l -1 for 1-Hexadecanol, Nonadecatriene, Aristolene and Tricosene, respectively compared to free hormone treatment.

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Kairomones ofheliothis armigera andcorcyra cephalonica and their influence on the parasitic potential oftrichogramma chilonis (Trichogrammatidae: hymenoptera)

Cited by 21 publications

References 13 publications

Kairomonal Effects of Different Host Body Washings on Parasitism by Trichogramma brasiliensis and T. japonicum

Kairomonal Effects of Different Host Body Washings on Parasitism by Trichogramma brasiliensis and T. japonicum

Response of Trichogramma chilonis to infochemicals: an SEM and electrophysiological investigation

Induction of biochemical active constituents of Jojoba (Simmondsia chinensis (Link) Schneider) callus affected by hormones

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