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

Nissinen, Anne; Kristoffersen, Lina LU and Anderbrant, Olle LU (2008) In European Journal of Entomology 105(2). p.227-232
Abstract
We have studied the effect of different light gradient regimes on host-plant selection of the carrot psyllid, Trioza apicalis Forster. 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... (More)
We have studied the effect of different light gradient regimes on host-plant selection of the carrot psyllid, Trioza apicalis Forster. 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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
host-plant selection, Daucus carota, Picea, abies, light intensity, host preference, light gradient, behaviour, physiological state, Trioza apicalis, triozidae
in
European Journal of Entomology
volume
105
issue
2
pages
227 - 232
publisher
CZECH ACAD SCI
external identifiers
  • wos:000256281500008
ISSN
1210-5759
project
Chemical ecology of psyllids
language
English
LU publication?
yes
id
0c602868-914d-4cc2-a86a-0ffa5fcb1121 (old id 1201796)
alternative location
http://www.eje.cz/scripts/viewabstract.php?abstract=1326
date added to LUP
2008-09-16 14:11:43
date last changed
2016-04-15 20:52:08
@article{0c602868-914d-4cc2-a86a-0ffa5fcb1121,
  abstract     = {We have studied the effect of different light gradient regimes on host-plant selection of the carrot psyllid, Trioza apicalis Forster. 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.},
  author       = {Nissinen, Anne and Kristoffersen, Lina and Anderbrant, Olle},
  issn         = {1210-5759},
  keyword      = {host-plant selection,Daucus carota,Picea,abies,light intensity,host preference,light gradient,behaviour,physiological state,Trioza apicalis,triozidae},
  language     = {eng},
  number       = {2},
  pages        = {227--232},
  publisher    = {CZECH ACAD SCI},
  series       = {European Journal of Entomology},
  title        = {Physiological state of female and light intensity affect the host-plant selection of carrot psyllid, <i>Trioza apicalis</i> (Hemiptera : Triozidae)},
  volume       = {105},
  year         = {2008},
}