On the Chemical Components of the Stink of «Chrysocoris Stolli» Wolf. (Heteroptera: Pentatomidae: Insecta)

Choudhuri, D. K.; Das, Kousik

doi:10.3109/13813456909059772

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…La 2-butanona y la 3-pentanona identificadas en el estípite de la palma de aceite han sido reportadas previamente como compuestos atrayentes o constituyentes de feromonas para distintas especies de insectos. [131][132][133][134][135][136][137] Por un lado, la 2-butanona, cetona de 4 átomos de carbono, ha sido reportada como atrayente para una gran variedad de especies de escarabajos del orden Coleoptera, 138 y familia Scarabaeidae. 26,119,139 De hecho, esta cetona fue identificada como uno de los constituyentes del aroma del estiércol, 119,[138][139][140] y del olor producido por las inflorescencias de A. abyssinicus, 139,141 que resulta crucial en la atracción de los escarabajos.…”

Section: Perfil De Volátiles Del Estípite De La Palma De Aceiteunclassified

Insect host location: a volatile situation

Bruce

Wadhams

Woodcock

2005

Trends in Plant Science

1,153

894

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Locating a host plant is crucial for a phytophagous (herbivorous) insect to fulfill its nutritional requirements and to find suitable oviposition sites. Insects can locate their hosts even though the host plants are often hidden among an array of other plants. Plant volatiles play an important role in this host-location process. The recognition of a host plant by these olfactory signals could occur by using either species-specific compounds or specific ratios of ubiquitous compounds. Currently, most studies favor the second scenario, with strong evidence that plant discrimination is due to central processing of olfactory signals by the insect, rather than their initial detection. Furthermore, paired or clustered olfactory receptor neurons might enable fine-scale spatio-temporal resolution of the complex signals encountered when ubiquitous compounds are used.

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Section: Perfil De Volátiles Del Estípite De La Palma De Aceiteunclassified

Insect host location: a volatile situation

Bruce

Wadhams

Woodcock

2005

Trends in Plant Science

1,153

894

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“…We previously identified both this compound and its derivatives, i.e., 2-pentanol in E. helleborine (Jakubska-Busse, unpublished data). This semiochemical is attractive to, among others, jewel bugs Chrysocoris stolli (Heteroptera, Scutelleridae, Scutellerinae) [ 64 ] and the scuttle fly genus Megaselia (Diptera, Phoridae, Metopiinae, Metopinini) [ 65 ].…”

Section: Discussionmentioning

confidence: 99%

Why does an obligate autogamous orchid produce insect attractants in nectar? – a case study on Epipactis albensis (Orchidaceae)

et al. 2022

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Background The flowers of some species of orchids produce nectar as a reward for pollination, the process of transferring pollen from flower to flower. Epipactis albensis is an obligatory autogamous species, does not require the presence of insects for pollination, nevertheless, it has not lost the ability to produce nectar, the chemical composition of which we examined by gas chromatography-mass spectrometry (GC–MS) method for identification of potential insect attractants. Results During five years of field research, we did not observe any true pollinating insects visiting the flowers of this species, only accidental insects as ants and aphids. As a result of our studies, we find that this self-pollinating orchid produces in nectar inter alia aliphatic saturated and unsaturated aldehydes such as nonanal (pelargonal) and 2-pentenal as well as aromatic ones (i.e., syringaldehyde, hyacinthin). The nectar is low in alkenes, which may explain the absence of pollinating insects. Moreover, vanillin and eugenol derivatives, well-known as important scent compounds were also identified, but the list of chemical compounds is much poorer compared with a closely related species, insect-pollinating E. helleborine. Conclusion Autogamy is a reproductive mechanism employed by many flowering plants, including the orchid genus Epipactis, as an adaptation to growing in habitats where pollinating insects are rarely observed due to the lack of nectar-producing plants they feed on. The production of numerous chemical attractants by self-pollinated E. albensis confirms the evolutionary secondary process, i.e., transition from ancestral insect-pollinating species to obligatory autogamous.

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“…The secretion is a minimally studied mixture of hydrocarbonates and other derivatives that function as a repellent and can cause paralysis in prey. 3,4 The secretion can be expressed actively by the stink bug or by applying pressure on the organism.…”

Section: Introductionmentioning

confidence: 99%