Journal ArticleDOI
Feeding and Other Gall Facets: Patterns and Determinants in Gall Structure
Bruno G. Ferreira,Bruno G. Ferreira,Rafael Álvarez,Gracielle Pereira Pimenta Bragança,Danielle Ramos de Alvarenga,Nicolás Pérez-Hidalgo,Rosy Mary dos Santos Isaias +6 more
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TLDR
The animal-induced galls have a striking anatomical diversity, concerning several patterns, which were reunited herein, and culminates in extant gall structural diversity.Abstract:
Galls are neoformed structures induced by specific animals, fungi, bacteria, virus or some parasitic plants on their host plant organs. Developmental processes are well known in Agrobacterium tumefasciens galls, but the animal-induced galls have a striking anatomical diversity, concerning several patterns, which were reunited herein. Anatomical traits observed in animal-induced galls involve manipulation of plant morphogenesis in convergent ways. Nematode, mite and insect galls usually contain homogeneous storage parenchyma and develop due to hyperplasia and cell hypertrophy. The development of typical nutritive tissues, giant cells, or hypertrophied vascular bundles may occur. Some other anatomical features may be usually restricted to galls induced by specific taxa, but they may eventually be related to the developmental potentialities of the host plants. The combination of distinct morphogenetic peculiarities in each gall system culminates in extant gall structural diversity. Convergent anatomical traits are observed according to the feeding mode of the gall inducers, representing potentiation or inhibition of similar events of host plant morphogenesis and cell redifferentiation, independent of gall-inducing taxa.read more
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Histopathogenesis of the galls induced by Nothanguina phyllobia in Solanum elaeagnifolium [Silver-leaf nightshade, perennial weeds, biological control agents]
TL;DR: The histopathogenesis of the foliar galls induced by Nothanguina phyllobia Thorne in Solanum elaeagnilolium Cav. was examined via serial sections prepared from plant shoots at 11 time intervals (0.5-30 days) following inoculation as mentioned in this paper.
Journal ArticleDOI
Cytological attributes of storage tissues in nematode and eriophyid galls: pectin and hemicellulose functional insights
Bruno G. Ferreira,Bruno G. Ferreira,Gracielle Pereira Pimenta Bragança,Rosy Mary dos Santos Isaias +3 more
TL;DR: Despite their analogous functionalities, the protoplast and cell wall features of TNT cells of nematode galls and of the feeding cells of the Eriophyidae galls are distinct, and work out through different strategies toward keeping gall developmental site active.
Journal ArticleDOI
Enzyme‐mediated metabolism in nutritive tissues of galls induced by Ditylenchus gallaeformans (Nematoda: Anguinidae)
Bruno G. Ferreira,Mariana de Sousa Costa Freitas,Gracielle Pereira Pimenta Bragança,Ana Silvia Franco Pinheiro Moreira,Renê Gonçalves da Silva Carneiro,Rosy Mary dos Santos Isaias +5 more
TL;DR: Reducing sugars in the TNT are important for the production of new cell walls during the indeterminate growth of the galls, which have increased levels of water-soluble polysaccharides that corroborate such hypothesis.
Journal ArticleDOI
Hemicelluloses and associated compounds determine gall functional traits
Gracielle Pereira Pimenta Bragança,C. F. Alencar,Mariana de Sousa Costa Freitas,Rosy Mary dos Santos Isaias +3 more
TL;DR: Although cell wall dynamics is peculiar to each gall morphotype in Inga ingoides, the role of xyloglucans as carbohydrate reserve to the gall inducers constitutes a functional trait common the three morphotypes.
Journal ArticleDOI
Interactions Between Figs and Gall-Inducing Fig Wasps: Adaptations, Constraints, and Unanswered Questions
TL;DR: A review of current knowledge on gall induction by fig wasps and exposes the many lacunae in this area can be found in this paper, which makes connections between fig and gall-inducing wasp traits, and suggests relatively unexplored research avenues.
References
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Journal ArticleDOI
Phenotypic plasticity and similarity among gall morphotypes on a superhost, Baccharis reticularia (Asteraceae)
Anete Teixeira Formiga,Fernando A. O. Silveira,Geraldo Wilson Fernandes,Rosy Mary dos Santos Isaias +3 more
TL;DR: In this article, the authors investigated the role of abiotic and biotic factors in determining final plant structure and found that the more complex the galls, the more distinct they are from their non-galled host.
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Could the Extended Phenotype Extend to the Cellular and Subcellular Levels in Insect-Induced Galls?
TL;DR: Current analyses indicate that the extended phenotype of N. cattleiani is substantiated by cellular and subcellular specificities, and these double co-generic systems represent good models for comparing final gall shapes and cell lineages functionalities under the perspective of convergent plant-dependent or divergent insect-induced characteristics.
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Anatomical and developmental aspects of leaf galls induced by Schizomyia macrocapillata Maia (Diptera: Cecidomyiidae) on Bauhinia brevipes Vogel (Fabaceae)
Camila Emiliane Mendes de Sá,Fernando A. O. Silveira,Jean Carlos Santos,Rosy Mary dos Santos Isaias,G. Wilson Fernandes +4 more
TL;DR: The neoformation of phloematic bundles suggests host manipulation and indicates the establishment of a deviating sink in gall morphogenesis.
Journal ArticleDOI
Gradients of metabolite accumulation and redifferentiation of nutritive cells associated with vascular tissues in galls induced by sucking insects
TL;DR: It is shown that even though the globoid shape is one of the most common in nature, the galls of N. cattleiani are unique entities.
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A preliminary histological investigation of gall induction in an unconventional galling system
TL;DR: Gall development was not observed after any of the oviposition disruption treatments, and histologically, periclinal cell divisions, de novo xylem, and pith cells with numerous stained plastids were observed as in normal gall development, suggesting that ovipositional fluid plays a role in gall induction.