Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia
Glycaspis (Synglycaspis) confined to Australia includes gall-inducing and lerp-forming species that are probably highly specific to different species of Eucalyptus subgenus Eucalyptus. Based on available information, their distribution appears restricted to temperate, south-eastern and southern Aust...
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| Format: | Article |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2015-01-01
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| Series: | European Journal of Entomology |
| Subjects: | |
| Online Access: | https://www.eje.cz/artkey/eje-201501-0010_Feeding_and_oviposition_behaviour_of_a_gall_inducing_species_of_Glycaspis_Synglycaspis_Hemiptera_Psylloidea.php |
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| author | Anamika SHARMA Anantanarayanan RAMAN Gary S. TAYLOR Murray J. FLETCHER Helen I. NICOL |
| author_facet | Anamika SHARMA Anantanarayanan RAMAN Gary S. TAYLOR Murray J. FLETCHER Helen I. NICOL |
| author_sort | Anamika SHARMA |
| collection | DOAJ |
| description | Glycaspis (Synglycaspis) confined to Australia includes gall-inducing and lerp-forming species that are probably highly specific to different species of Eucalyptus subgenus Eucalyptus. Based on available information, their distribution appears restricted to temperate, south-eastern and southern Australia. This paper reports the biology of an unnamed (suspected new species) of Glycaspis (Synglycaspis) that induces spherical, ostiolate galls on the leaves of Eucalyptus macrorhyncha in central western tablelands of NSW. This species completes two generations in a year. Oviposition elicits a passive response in the leaves of E. macrorhyncha. In this work we demonstrate that the host tissue not only supplies water, but also nutrients to the developing embryo via the embedded pedicel. Feeding action of the first instar initiates the gall and morphogenetic gradients become apparent around the feeding site. These gradients direct gall growth. The gall attains its near final spherical shape during the second instar and this spherical gall remains plugged with sugary material, which all the immature stages secrete from the last abdominal segment. No significant gall growth occurs during the occupation of the gall by the third, fourth and fifth instars. The first and second instars feed on the newly differentiated parenchyma tissue in galls, whereas the third, fourth and fifth instars feed on phloem of galls. Consequently the multi-layer parenchymatous nutritive tissue that initially develops lining the chamber dries and shrivels, when the later instars inhabit galls. This shrinkage induces a gradual thinning of gall walls, which is also aggravated by modest expansive growth of the gall. |
| first_indexed | 2024-12-20T12:46:29Z |
| format | Article |
| id | doaj.art-4dc9556328464856952dbc5b2985ac97 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-20T12:46:29Z |
| publishDate | 2015-01-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-4dc9556328464856952dbc5b2985ac972022-12-21T19:40:17ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292015-01-011121759010.14411/eje.2015.021eje-201501-0010Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, AustraliaAnamika SHARMA0Anantanarayanan RAMAN1Gary S. TAYLOR2Murray J. FLETCHER3Helen I. NICOL4Charles Sturt University, PO Box 883, Orange, NSW 2800, Australia; e-mails: araman@csu.edu.au; asharma@csu.edu.au; murvic@aanet.com.au; helen.i.nicol@gmail.comCharles Sturt University, PO Box 883, Orange, NSW 2800, Australia; e-mails: araman@csu.edu.au; asharma@csu.edu.au; murvic@aanet.com.au; helen.i.nicol@gmail.comAustralian Centre for Evolutionary Biology & Biodiversity and the School of Earth and Environmental Sciences, University of Adelaide, Adelaide, SA 5005, Australia; e-mail: gary.taylor@adelaide.edu.auCharles Sturt University, PO Box 883, Orange, NSW 2800, Australia; e-mails: araman@csu.edu.au; asharma@csu.edu.au; murvic@aanet.com.au; helen.i.nicol@gmail.comCharles Sturt University, PO Box 883, Orange, NSW 2800, Australia; e-mails: araman@csu.edu.au; asharma@csu.edu.au; murvic@aanet.com.au; helen.i.nicol@gmail.comGlycaspis (Synglycaspis) confined to Australia includes gall-inducing and lerp-forming species that are probably highly specific to different species of Eucalyptus subgenus Eucalyptus. Based on available information, their distribution appears restricted to temperate, south-eastern and southern Australia. This paper reports the biology of an unnamed (suspected new species) of Glycaspis (Synglycaspis) that induces spherical, ostiolate galls on the leaves of Eucalyptus macrorhyncha in central western tablelands of NSW. This species completes two generations in a year. Oviposition elicits a passive response in the leaves of E. macrorhyncha. In this work we demonstrate that the host tissue not only supplies water, but also nutrients to the developing embryo via the embedded pedicel. Feeding action of the first instar initiates the gall and morphogenetic gradients become apparent around the feeding site. These gradients direct gall growth. The gall attains its near final spherical shape during the second instar and this spherical gall remains plugged with sugary material, which all the immature stages secrete from the last abdominal segment. No significant gall growth occurs during the occupation of the gall by the third, fourth and fifth instars. The first and second instars feed on the newly differentiated parenchyma tissue in galls, whereas the third, fourth and fifth instars feed on phloem of galls. Consequently the multi-layer parenchymatous nutritive tissue that initially develops lining the chamber dries and shrivels, when the later instars inhabit galls. This shrinkage induces a gradual thinning of gall walls, which is also aggravated by modest expansive growth of the gall.https://www.eje.cz/artkey/eje-201501-0010_Feeding_and_oviposition_behaviour_of_a_gall_inducing_species_of_Glycaspis_Synglycaspis_Hemiptera_Psylloidea.phphemipterapsylloideaaphalaridaeglycaspis (synglycaspis)eucalyptusgallscecidogenesishost-specificitynutritive cellsoviposition |
| spellingShingle | Anamika SHARMA Anantanarayanan RAMAN Gary S. TAYLOR Murray J. FLETCHER Helen I. NICOL Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia European Journal of Entomology hemiptera psylloidea aphalaridae glycaspis (synglycaspis) eucalyptus galls cecidogenesis host-specificity nutritive cells oviposition |
| title | Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia |
| title_full | Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia |
| title_fullStr | Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia |
| title_full_unstemmed | Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia |
| title_short | Feeding and oviposition behaviour of a gall inducing species of Glycaspis (Synglycaspis) (Hemiptera: Psylloidea: Aphalaridae) and development of galls on the leaves of Eucalyptus macrorhyncha (Myrtaceae) in central western New South Wales, Australia |
| title_sort | feeding and oviposition behaviour of a gall inducing species of glycaspis synglycaspis hemiptera psylloidea aphalaridae and development of galls on the leaves of eucalyptus macrorhyncha myrtaceae in central western new south wales australia |
| topic | hemiptera psylloidea aphalaridae glycaspis (synglycaspis) eucalyptus galls cecidogenesis host-specificity nutritive cells oviposition |
| url | https://www.eje.cz/artkey/eje-201501-0010_Feeding_and_oviposition_behaviour_of_a_gall_inducing_species_of_Glycaspis_Synglycaspis_Hemiptera_Psylloidea.php |
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