Antennal sensilla and their possible functions in the host-plant selection behaviour of Phenacoccus manihoti (Matile-Ferrero) (Homoptera : Pseudococcidae)

Rü, B. Le; Renard, Sophie; Allo, Marie-Rose; Lannic, J. Le; Rolland, Jean-Paul

doi:10.1016/0020-7322(95)00012-s

Cited by 23 publications

(19 citation statements)

References 20 publications

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“…The present study showed that each antenna of the first‐instar nymphs of P. sophorae is composed of six segments (PE, SC, and F1–F4) and has seven types of sensilla. This basic antennal morphology is similar to that of the few other scale insects nymphs that have been previously studied, that is, P. manihoti , K. lacca , P. mahdihassani , and M. matsumurae (Le Rü et al, ; Ahmad et al, ; Wang et al, ). However, some differences are found in the types, ultrastructure, frequency, and distribution of the various sensilla.…”

Section: Discussionsupporting

confidence: 69%

“…The Bb sensillum has rarely been noted on the antennae of scale insects. In prior studies, Bb sensillum was not found on the antennae of the first‐instar nymphs of P. manihoti, K. lacca , or P. mahdihassani (Le Rü et al, ; Ahmad et al, ). Recently, we observed the Bb sensilla on the antennae of adult female and male M. matsumurae but did not find any on the antennae of their first‐instar nymphs (Wang et al, ).…”

Section: Discussionmentioning

confidence: 92%

“…The terminologies of Koteja (), Zacharuk (), and Le Rü et al () were followed in naming the types of antennal sensilla. The terminologies of Eilers et al () and Zhang et al () were followed in naming the internal structures of the sensilla.…”

Section: Methodsmentioning

confidence: 99%

“…The function of these receptors has been extensively studied in the Insecta, for example, the studies and reviews of McIver (), Altner and Prillinger (), Zacharuk, (), Altner et al, (), and Steinbrecht (). However, research concerning the ultrastructure of the sensilla of the first‐instar scale insects is scarce, for example, Phenacoccus manihoti (Matile‐Ferrero; Pseudococcidae; Le Rü et al, ), Kerria lacca (Kerr) and Paratachardina mahdihassani (Kondo and Gullan), (Tachardiidae; Ahmad et al, ), and Matsucoccus matsumurae (Kuwana; Matsucoccidae; Wang et al, ). However, no soil‐inhabiting scale insect species has been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Antennal sensilla and their nerve innervation in first-instar nymphs ofPorphyrophora sophoraeArch. (Hemiptera: Coccomorpha: Margarodidae)

Wang

Xie

Zhang

et al. 2016

Journal of Morphology

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Porphyrophora (Hemiptera: Coccomorpha: Margarodidae) is a genus of soil-inhabiting scale insects. The antennal sensilla and their innervation in the first-instar nymphs of Porphyrophora sophorae were studied using light microscopy and scanning and transmission electron microscopy to understand the function of these sensilla and determine the sensillar innervation feature on these small antennae. The results show that the six-segmented antennae of these nymphs have 20-23 sensilla which can be morphologically classified into seven types, for example, one Böhm's bristle (Bb), one campaniform sensillum (Ca), one Johnston's organ (Jo), 13-16 aporous sensilla trichodea (St), two coeloconic sensilla (Co), one straight multiporous peg (Mp1), and one curvy multiporous peg (Mp2). According to their function, these sensilla can be categorized into three categories: mechanoreceptors, that is, Bb, Ca, Jo, and St; thermo/hygroreceptors, that is, Co only; and chemoreceptors, that is, Mp1 and Mp2. The dendrites that innervate the Mp1, Mp2, and Co sensilla combine to form a large nerve tract (NT1) in the antennal lumen. Because NT1 extends through and out of the antenna, the somata of these neurons are present in the lymph cavity of the insect's head. The dendrites that innervate the mechanoreceptors form another nerve tract (NT2). The somata of these neurons are located inside the scape and pedicel. J. Morphol. 277:1631-1647, 2016. © 2016 Wiley Periodicals, Inc.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Antennal sensilla and their nerve innervation in first-instar nymphs ofPorphyrophora sophoraeArch. (Hemiptera: Coccomorpha: Margarodidae)

Wang

Xie

Zhang

et al. 2016

Journal of Morphology

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“…The differences between them are, ST-I are characterized by the parallel grooved walls whereas ST-II have smooth walls. BS have a thicker body than that of ST, with multiple pores on sensilla tips 13 or around the walls 13, 12. In some cases, BS are aporous.…”

Section: Discussionmentioning

confidence: 99%

Ultrastructural Characterization of Olfactory Sensilla and Immunolocalization of Odorant Binding and Chemosensory Proteins from an Ectoparasitoid Scleroderma Guani (Hymenoptera: Bethylidae)

Li¹,

Lu²,

Liu³

et al. 2011

Int. J. Biol. Sci.

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The three-dimensional structures of two odorant binding proteins (OBPs) and one chemosensory protein (CSP) from a polyphagous ectoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) were resolved bioinformatically. The results show that both SguaOBP1 and OBP2 are classic OBPs, whereas SguaCSP1 belongs to non-classic CSPs which are considered as the “Plus-C” CSP in this report. The structural differences between the two OBPs and between OBP and CSP are thoroughly described, and the structural and functional significance of the divergent C-terminal regions (e.g., the prolonged C-terminal region in SguaOBP2 and the additional pair of cysteines in SguaCSP1) are discussed. The immunoblot analyses with antisera raised against recombinant SguaOBP1, OBP2, and CSP1, respectively, indicate that two SguaOBPs are specific to antennae, whereas SguaCSP1, which are more abundant than OBPs and detected in both male and female wasps, expresses ubiquitously across different tissues.We also describe the ultrastructure of the antennal sensilla types in S. guani and compare them to 19 species of parasitic Hymenoptera. There are 11 types of sensilla in the flagellum and pedicel segments of antennae in both male and female wasps. Seven of them, including sensilla placodea (SP), long sensilla basiconica (LSB), sensilla coeloconica (SC), two types of double-walled wall pore sensilla (DWPS-I and DWPS-II), and two types of sensilla trichodea (ST-I and ST-II), are multiporous chemosensilla. The ultralsturctures of these sensilla are morphologically characterized. In comparison to monophagous specialists, the highly polyphagous generalist ectoparasitoids such as S. guani possess more diverse sensilla types which are likely related to their broad host ranges and complex life styles. Our immunocytochemistry study demonstrated that each of the seven sensilla immunoreacts with at least one antiserum against SguaOBP1, OBP2, and CSP1, respectively. Anti-OBP2 is specifically labeled in DWPS-II, whereas the anti-OBP1 shows a broad spectrum of immunoactivity toward four different sensilla (LSB, SP, ST-I and ST-II). On the other hand, anti-CSP1 is immunoactive toward SP, DWPS-I and SC. Interestingly, a cross co-localization pattern between SguaOBP1 and CSP1 is documented for the first time. Given that the numbers of OBPs and CSPs in many insect species greatly outnumber their antennal sensilla types, it is germane to suggest such phenomenon could be the rule rather than the exception.

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Antennal sensilla and their possible functions in the host-plant selection behaviour of Phenacoccus manihoti (Matile-Ferrero) (Homoptera : Pseudococcidae)

Cited by 23 publications

References 20 publications

Antennal sensilla and their nerve innervation in first-instar nymphs ofPorphyrophora sophoraeArch. (Hemiptera: Coccomorpha: Margarodidae)

Antennal sensilla and their nerve innervation in first-instar nymphs ofPorphyrophora sophoraeArch. (Hemiptera: Coccomorpha: Margarodidae)

Ultrastructural Characterization of Olfactory Sensilla and Immunolocalization of Odorant Binding and Chemosensory Proteins from an Ectoparasitoid Scleroderma Guani (Hymenoptera: Bethylidae)

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