Biomorphometric characteristics of different types of sensilla detected on the antenna of Helicoverpa armigera by scanning electron microscopy

Diongue, Aliou; Yang, Jeng-Tze; Lai, Po-Yung

doi:10.1016/j.aspen.2012.09.001

Cited by 24 publications

(24 citation statements)

References 16 publications

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“…The s. trichodea subtype I was longer than other trichodea subtypes, and was present only on male antennae in C. pomonella and C. succedana . The presence of this sensillum has been reported in other moths (Diongue et al, ; Gómez et al, ; Sun et al, ). The long s. trichodea has been known to house highly sensitive pheromone detecting ORNs in codling moth (Ebbinghaus et al, ).…”

Section: Discussionsupporting

confidence: 64%

“…These subtypes have also been reported in other lepidopteran species of G . molesta (Tortricidae), O. nubilalis (Pyralidae) , Homeosoma nebulella (Pyralidae), Helicoverpa assulta , H. armigera (Noctuidae), and Noctua pronuba (Noctuidae) (Diongue, Yang, & Lai, ; Faucheux 1991; George and Nagy, ; Hallberg, Hansson, & Steinbrecht, ; Koh et al, ). However, no subtype was found in both sexes of Z. dixolophella (Pyralidae) (Gómez, Nieto, Valdes, Castrejón, & Rojas, ).…”

Section: Discussionmentioning

confidence: 99%

“…Homeosoma nebulella (Pyralidae), Helicoverpa assulta, H. armigera (Noctuidae), and Noctua pronuba (Noctuidae) (Diongue, Yang, & Lai, 2013;Faucheux 1990bFaucheux , 1991George and Nagy, 1984;Hallberg, Hansson, & Steinbrecht, 1994;Koh et al, 1995). However, no subtype was found in both sexes of Z. dixolophella (Pyralidae) (G omez, Nieto, Valdes, Castrej on, & Rojas, 2003).…”

Section: Discussionmentioning

confidence: 99%

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Morphology and distribution of antennal sensilla of two tortricid moths,Cydia pomonellaandC. succedana(Lepidoptera)

Roh

Park

et al. 2016

Microsc. Res. Tech.

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Morphology of antennal sensilla and their distributions were investigated in male and female adults of two tortricid moths, Cydia pomonella and C. succedana using scanning electron microscopy. The antennae of both sexes of the two species were filiform, and the overall lengths of the antennae and the number of consisting segments were greater in males than in females. Six types of sensilla (s.) were identified from the antennae of both sexes in the two species: s. trichodea, s. basiconica, s. coeloconica, s. auricillica, s. chaetica, and s. styloconica, in varying numbers and distribution along the antennae. Among them, surface of four sensilla types (s. trichodea, s. basiconica, s. coeloconica, s. auricillica) were multiporous in the two species, indicating that the primary function of these sensilla is olfactory. The s. trichodea were the most numerous on the antennae in both sexes of the two species. Male C. pomonella has a greater number of s. trichodea than the female. The four sensilla types were further divided into different subtypes in the two species; s. trichodea into three subtypes, s. basiconica into two subtypes, s. coeloconica into two subtypes in C. pomonella and one subtype in C. succedana, and s. auricillica into two subtypes. Sexual dimorphism was observed in the subtypes of s. trichodea. The long subtype of s. trichodea occurs only on male antennae, whereas the short subtypes mainly on female antennae. These findings would be helpful for further studies on detailed chemo-receptive functions of each subtype of the antennal sensilla.

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Morphology and distribution of antennal sensilla of two tortricid moths,Cydia pomonellaandC. succedana(Lepidoptera)

Roh

Park

et al. 2016

Microsc. Res. Tech.

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“…The length of the female sensilla trichodea was greater than that of male. The number of sensilla trichodea was estimated to be 7520 in females, and 6831 in males by Aliou diongue et al 29 . Presence of sensilla trichodea was reported even in case of H. assulta 30 .…”

Section: Discussionmentioning

confidence: 99%

Autodetection in <i>Helicoverpa armigera</i> (Hubner)

et al. 2016

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Autodetection is an olfactory behavioural process where the females of some species respond to their own pheromonal blends. Through electroantennogram studies it has been proved that the gravid females of Helicoverpa armigera (Hubner) respond to their pheromone blend consisting of Z-11-hexadecenal and Z-9-hexadecenal in the ratio 97 : 3. Male antennae respond more strongly than virgin female antennae. However, antennae of gravid females elicit strong response than unmated males. Also, males showed strong responses in cross-wind flying in wind tunnel experiments, when sex pheromone blends were used. Virgin females and gravid females showed poor response in wind-tunnel studies. The ovipositional experiment where gravid females were allowed to oviposit in the presence and absence of pheromone odours indicated that there was no difference in the number of eggs laid. Through morphological studies, it has been proved that the females also possess sensilla trichoidea, destined to perceive the pheromone blends, though lesser in number than the males. These results support the hypothesis that autodetection of sex pheromones exists in females of H. armigera and is thought to function as a mechanism to induce dispersal under high population densities.

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“…There are many previous studies reported on antennal sensory plaque organs in the taxonomy and phylogeny of fulgoroi-dea of homoptera [1,2]. And recently, antennal sensory organ classified and evaluated as the taxonomic characters of nocturnal moth by SEM photography is published by our team [3]. Antennal epicuticular structure has been served as insect taxonomic character since long time ago, but not until the practice of the techniques of SEM and TEM, the ultra fine structure becomes possible in many other studies.…”

Section: Introductionmentioning

confidence: 99%

Antennal epicuticular structure of camel crickets (Orthoptera: Rhaphidophoridae) for identifying the prey of Mustella sibrica Pallas

Hu¹,

Yang²,

Tu³

2014

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Camel crickets (Orthoptera: Rhaphidophoridae) are a group of wingless and humpbacked Orthopteran insects. They are closed relatives to katydids and crickets; they were called spider crickets somewhere because of their long legs. Camel cricket plays an important role in the food web in various ecosystems. In the forest ecosystem, they live in the ground level of forestry under litters and fallen leaves, and some of them live beneath the log and hid themselves under loosen tree barks. They feed on decomposing organic substances and serve as decomposers in the food chain. It is a very common insect prey to insectivorous animals in natural and artificial vegetation. Guandaushi (GDS) is the experimental forest station of National Chung Hsing University, as the study site of long term ecological research (LTER) in Taiwan. And the camel cricket became an important subject and a dominant insect group in the LTER studies. They are the major parts of the insect preys of vertebrates, especially to the insectivorous mammals. According to our previous publication, 32.2% of the insect preys of Mustela sibirica Pallas are camel crickets in GDS forest ecosystem. There were 5 morpho-species of camel crickets by the characters of antennal epicuticular characters. The camel cricket was collected from various ways according to the LTER study during 1995-1998. The morphology of antennal epicuticular structure from totally 60 individuals was observed by using SEM. The epicuticular sculpture was described and classified into Type I and Type II by the SEM photographs. Type I has 8 patterns and Type II has 5 patterns in this study. The illustration and the pictorial key were provided here as the tool for further application. The morphospecies could not be identified due to the remainder being fragmented while examined. After the study, the SEM antennal epicuticular structures were classified and identified based upon the antennae sample of the morphospecies from the specimens of the 5 camel crickets which were collected from GDS forest ecosystem in this study. This is a part of the fundamental study for the protocol of ecosystem study. The protocol for identifying the insectivorous animal's prey by the insect fragment of food remainders is necessary. One more, there were 7 of the 13 patterns of antennal epicuticular structure applied to analysis the 5 morpho-species provided as the case study for taxonomy.

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Biomorphometric characteristics of different types of sensilla detected on the antenna of Helicoverpa armigera by scanning electron microscopy

Cited by 24 publications

References 16 publications

Morphology and distribution of antennal sensilla of two tortricid moths,Cydia pomonellaandC. succedana(Lepidoptera)

Morphology and distribution of antennal sensilla of two tortricid moths,Cydia pomonellaandC. succedana(Lepidoptera)

Autodetection in <i>Helicoverpa armigera</i> (Hubner)

Antennal epicuticular structure of camel crickets (Orthoptera: Rhaphidophoridae) for identifying the prey of Mustella sibrica Pallas

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