Sparse sensillar array on Trioza apicalis (Homoptera, Triozidae) antennae—an adaptation to high stimulus levels?

Kristoffersen, Lina; Hallberg, Eric; Wallén, Rita; Anderbrant, Olle

doi:10.1016/j.asd.2006.04.001

Cited by 60 publications

(43 citation statements)

References 19 publications

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“…A similar sparse sensillar setup was observed in Trioza apicalis Fö rster, where it was hypothesized as an adaptation of a strict specialized species to a high stimulus level of host odors (Kristoffersen et al 2006). It is consistent with the proved high degree of host specialization of S. titanus European populations, because it is monoic on Vitis throughout its life.…”

Section: Discussionsupporting

confidence: 51%

“…The morphological features of the sensory cavities and hair-shaped sensilla, as well as the functional position along the antenna, suggested that they are likely to be involved in perception of volatile compounds. Sensilla found in cavities were already supposed to be responsible for the reception of odors, CO 2 , humidity, and temperature (Steinbrecht 1984, Giangiuliani et al 1994, Kristoffersen et al 2006. However, the effective role in olfaction of the putative sensilla needs to be studied by both transmission electron microscopy and electrophysiological single sensillum recordings.…”

Section: Discussionmentioning

confidence: 99%

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Study on the Role of Olfaction in Host Plant Detection of <I>Scaphoideus titanus</I> (Hemiptera: Cicadellidae) Nymphs

Mazzoni¹,

Ioriatti²,

Trona³

et al. 2009

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The American grapevine leafhopper, Scaphoideus titanus Ball (Hemiptera: Cicadellidae), is the vector of the phytoplasma that causes Flavescence dorée, one of the most threatening grapevine yellows disease. The role of olfaction in host plant detection of this species is still unknown. In this study, the attractiveness of a host plant, the grapevine rootstock Vitis riparia x rupestris 101/14, to nymphs was verified through behavioral bioassays in a vertical glass Y-olfactometer. Furthermore, the olfactory sensitivity to odors extracted from grapevine organs headspace and the external morphology of the antennae were studied by electroantennography (EAG) and scanning electron microscopy (SEM), respectively. Headspace collections were made from fresh apical shoots and leaves. Concentrated extracts were analyzed by coupled gas chromatography and mass spectrometry (GC-MS) to identify volatile compounds. In EAG experiments, weak responses to plant odors were recorded. SEM observations indicated the presence of few antennal sensilla, potentially associated with olfaction. Our results suggest that olfactory cues may play a role in the host plant detection of S. titanus nymphs.

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Section: Discussionsupporting

confidence: 51%

Section: Discussionmentioning

confidence: 99%

Study on the Role of Olfaction in Host Plant Detection of <I>Scaphoideus titanus</I> (Hemiptera: Cicadellidae) Nymphs

Mazzoni¹,

Ioriatti²,

Trona³

et al. 2009

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“…In addition, the trichoid sensilla in C. eucalypti may also function as mechanosensory structures, as shown in Diaphorina citri Kuwayama (Liviidae) (Onagbola et al 2008). Except for the first-nymphal instars, the other instars bear an unequal pair of apical bristles, whereas the adults bear a subequal pair, which are thought to perform as olfactory sensilla (Kristoffersen et al 2006;Arras et al 2012).Antennal length of the monophagous psylloids such as Trioza apicalis Foerster (Triozidae) (Kristoffersen et al 2006) and polyphagous psylloid such as Bactericera cockerelli (Šulc) (Triozidae) (Arras et al 2012) is nearly similar to that of the polyphagous C. eucalypti, indicating a possible pattern in the need to select more than one plant for their nourishment.…”

Section: Discussionmentioning

confidence: 97%

Bionomics and feeding impact ofCtenarytaina eucalypti(Hemiptera: Psylloidea: Aphalaridae) onEucalyptus globulus(Myrtaceae) in the central tablelands of New South Wales

et al. 2014

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Ctenarytaina eucalypti is considered a key pest of Eucalyptus plantations, especially E. globulus, in different parts of the world. In this study different levels of response of E. globulus to oviposition and feeding by C. eucalypti are reported. The responses in the juvenile E. globulus leaf tissues to oviposition include subcellular damage with the accumulation of callosic material superimposed by lignin-like polymers in cells proximal to the oviposition site, indicating the earliest response of stress signals in E. globulus to wounding. The feeding action of the first-and second-nymphal instars on the mesophyll cells inflicts both mechanical and chemical damage and manifests newly developed apoplastic spaces between cell walls and plasma membranes, poorly differentiated primordial-palisade cells, and autolysed protoplast. The phloem-feeding third-, fourth-, and fifth-nymphal instars induce changes in phloem parenchyma, which occur as actively dividing cells and including autophagic vacuoles. Leaf cells fed by adults also include hypertrophied mitochondria, degenerating cytoplasm and secondary metabolic compounds. The arrangement of antennal sensilla of C. eucalypti varies among nymphs and adults. The adults and nymphs of C. eucalypti appear to prefer specific leaf parts, suggesting that the levels and quality of nutrients vary in the same leaf. Growth in C. eucalypti is allometric, and the total body and antennal lengths show similar patterns in growth rates when compared with other sclerotised parts.

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“…Studies have shown the presence of several olfactory sensilla on the antennae (Kristoffersen et al, 2006), which are responsive to various host-plant odours (Kristoffersen et al, in prep.). Some field experiments with repellents have been performed (Nehlin et al, 1994), but behavioural assays with carrot psyllids have been difficult to conduct under laboratory conditions.…”

Section: Introductionmentioning

confidence: 99%

Physiological state of female and light intensity affect the host-plant selection of carrot psyllid, Trioza apicalis (Hemiptera: Triozidae)

Nissinen¹,

Kristoffersen²,

Anderbrant³

2008

Eur. J. Entomol.

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Abstract.We have studied the effect of different light gradient regimes on host-plant selection of the carrot psyllid, Trioza apicalis Förster. In both a strong and a weak light gradient, carrot psyllids preferred a carrot leaf placed in higher light intensity. When the choice was between the host (carrot Daucus carota L.) and a non-host (barley Hordeum vulgare L.) virgin adults settled significantly more often on non-host in higher light intensity than on carrot in lower light intensity. In a weak light gradient, none of the gravid females settled on a non-host. In an experiment without light gradient, gravid females showed a preference for carrot, whereas virgin females settled approximately equally on Norway spruce Picea abies Karst. (winter shelter plant) and carrot. Our results show that virgin and gravid individuals have different host-plant selection behaviour, and that they are sensitive to small differences in light intensity. Both factors can create a source of variation in behavioural assays, and should be taken into consideration in future experiments with this and probably also related species. Our results suggest that carrot psyllids can utilize visual cues (light intensity or wavelength) in host-plant selection, and the role of visual cues should be more thoroughly studied.

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Sparse sensillar array on Trioza apicalis (Homoptera, Triozidae) antennae—an adaptation to high stimulus levels?

Cited by 60 publications

References 19 publications

Study on the Role of Olfaction in Host Plant Detection of <I>Scaphoideus titanus</I> (Hemiptera: Cicadellidae) Nymphs

Study on the Role of Olfaction in Host Plant Detection of <I>Scaphoideus titanus</I> (Hemiptera: Cicadellidae) Nymphs

Bionomics and feeding impact ofCtenarytaina eucalypti(Hemiptera: Psylloidea: Aphalaridae) onEucalyptus globulus(Myrtaceae) in the central tablelands of New South Wales

Physiological state of female and light intensity affect the host-plant selection of carrot psyllid, Trioza apicalis (Hemiptera: Triozidae)

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