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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/06/2018 |
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Data da última atualização: |
04/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ISAIAS, R. M. dos S.; FERREIRA, B. G.; ALVARENGA, D. R. de; BARBOSA, L. R.; SALMINEN, J.-P.; STEINBAUER, M. J. |
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Afiliação: |
Rosy Mary dos Santos Isaias, UFMG; Bruno Garcia Ferreira, UFMG; Danielle Ramos de Alvarenga, UFMG; LEONARDO RODRIGUES BARBOSA, CNPF; Juha-Pekka Salminen, University of Turku; Martin J. Steinbauer, La Trobe University. |
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Título: |
Functional compartmentalisation of nutrients and phenolics in the tissues of galls induced by Leptocybe invasa (Hymenoptera: Eulophidae) on Eucalyptus camaldulensis (Myrtaceae). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Austral Entomology, v. 57, p. 2, p. 238-246, May 2018. |
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DOI: |
10.1111/aen.12336 |
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Idioma: |
Inglês |
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Conteúdo: |
Galling herbivores induce structural and chemical alterations in their host plant?s tissues. These insects have been the focus of little study in the case of Australian taxa. Leptocybe invasa, a native Australian galling hymenopteran associated with Eucalyptusspecies, causes economic damage to plantation eucalypts in many countries around the world. Leptocybe invasa oviposits in the midribs and petioles of expanding leaves thereby intercepting photosynthates and impairing normal expansion. We analysed the ultrastructural and chemical cellular changes in L. invasa galls on Eucalyptus camaldulensis (probably subspecies camaldulensis) to diagnose how the insect manipulates plant cells and tissues and the significance of these alterations for insect nutrition and protection. Galling stimuli induce the formation of two functionally compartmentalised types of tissue. Phenolic plant secondary metabolites and anthocyanins (plant pigments) accumulate in the outer compartment, while primary metabolites accumulate in the inner compartment. The nutritive cells (inner compartment) accumulate protein and lipids that provide food for the larvae. Total polyphenol concentrations did not differ significantly between outer and inner compartments. Nevertheless, the concentrations of quercetin and kaempferol derivatives were higher in the outer compartment than in the inner compartment. These differences could be related to the protection of plant tissues against ultraviolet rays and the maintenance of redox homeostasis. There were higher ratios of hexahydroxydiphenoylcontaining hydrolysable tannins rather than galloyl-containing hydrolysable tannins in the inner compartment. This shift in the oxidative capacity of the polyphenols in the inner compartment could represent a defensive plant response to the larvae. MenosGalling herbivores induce structural and chemical alterations in their host plant?s tissues. These insects have been the focus of little study in the case of Australian taxa. Leptocybe invasa, a native Australian galling hymenopteran associated with Eucalyptusspecies, causes economic damage to plantation eucalypts in many countries around the world. Leptocybe invasa oviposits in the midribs and petioles of expanding leaves thereby intercepting photosynthates and impairing normal expansion. We analysed the ultrastructural and chemical cellular changes in L. invasa galls on Eucalyptus camaldulensis (probably subspecies camaldulensis) to diagnose how the insect manipulates plant cells and tissues and the significance of these alterations for insect nutrition and protection. Galling stimuli induce the formation of two functionally compartmentalised types of tissue. Phenolic plant secondary metabolites and anthocyanins (plant pigments) accumulate in the outer compartment, while primary metabolites accumulate in the inner compartment. The nutritive cells (inner compartment) accumulate protein and lipids that provide food for the larvae. Total polyphenol concentrations did not differ significantly between outer and inner compartments. Nevertheless, the concentrations of quercetin and kaempferol derivatives were higher in the outer compartment than in the inner compartment. These differences could be related to the protection of plant tissues against ultraviolet rays and the mainten... Mostrar Tudo |
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Palavras-Chave: |
Célula nutritiva; Cytology; Nutritive cells; Polifenois; Tissue compartments. |
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Thesagro: |
Citologia; Eucalipto; Eucalyptus Camaldulensis; Flavonóide; Histoquímica; Lipídio; Praga de Planta. |
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Thesaurus Nal: |
Flavonols; Histochemistry; Leptocybe invasa; Lipids; Polyphenols; Proanthocyanidins. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 03048naa a2200409 a 4500
001 2092165
005 2018-06-04
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/aen.12336$2DOI
100 1 $aISAIAS, R. M. dos S.
245 $aFunctional compartmentalisation of nutrients and phenolics in the tissues of galls induced by Leptocybe invasa (Hymenoptera$bEulophidae) on Eucalyptus camaldulensis (Myrtaceae).$h[electronic resource]
260 $c2018
520 $aGalling herbivores induce structural and chemical alterations in their host plant?s tissues. These insects have been the focus of little study in the case of Australian taxa. Leptocybe invasa, a native Australian galling hymenopteran associated with Eucalyptusspecies, causes economic damage to plantation eucalypts in many countries around the world. Leptocybe invasa oviposits in the midribs and petioles of expanding leaves thereby intercepting photosynthates and impairing normal expansion. We analysed the ultrastructural and chemical cellular changes in L. invasa galls on Eucalyptus camaldulensis (probably subspecies camaldulensis) to diagnose how the insect manipulates plant cells and tissues and the significance of these alterations for insect nutrition and protection. Galling stimuli induce the formation of two functionally compartmentalised types of tissue. Phenolic plant secondary metabolites and anthocyanins (plant pigments) accumulate in the outer compartment, while primary metabolites accumulate in the inner compartment. The nutritive cells (inner compartment) accumulate protein and lipids that provide food for the larvae. Total polyphenol concentrations did not differ significantly between outer and inner compartments. Nevertheless, the concentrations of quercetin and kaempferol derivatives were higher in the outer compartment than in the inner compartment. These differences could be related to the protection of plant tissues against ultraviolet rays and the maintenance of redox homeostasis. There were higher ratios of hexahydroxydiphenoylcontaining hydrolysable tannins rather than galloyl-containing hydrolysable tannins in the inner compartment. This shift in the oxidative capacity of the polyphenols in the inner compartment could represent a defensive plant response to the larvae.
650 $aFlavonols
650 $aHistochemistry
650 $aLeptocybe invasa
650 $aLipids
650 $aPolyphenols
650 $aProanthocyanidins
650 $aCitologia
650 $aEucalipto
650 $aEucalyptus Camaldulensis
650 $aFlavonóide
650 $aHistoquímica
650 $aLipídio
650 $aPraga de Planta
653 $aCélula nutritiva
653 $aCytology
653 $aNutritive cells
653 $aPolifenois
653 $aTissue compartments
700 1 $aFERREIRA, B. G.
700 1 $aALVARENGA, D. R. de
700 1 $aBARBOSA, L. R.
700 1 $aSALMINEN, J.-P.
700 1 $aSTEINBAUER, M. J.
773 $tAustral Entomology$gv. 57, p. 2, p. 238-246, May 2018.
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| 1. |  | AVELINO, F.; FELIPE, V. T. de A.; DIAS, M. T.; NOVAIS, L. M. R. de; D'OCA, C. da R. M.; MARQUES NETO, F. P.; SOARES, A. K.; MAGALHAES, W. L. E.; MAZZETTO, S. E.; LOMONACO, D. Unraveling the structural aspects of microwave-assisted OrganoCat-based coconut shell lignins: an eco-friendly route for obtaining bio-based antioxidants. International Journal of Biological Macromolecules, v. 274, 133349, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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