The influence of gall position over xylem features in leaflets of Inga ingoides (Rich.) Willd. (Fabaceae: Caesalpinioideae)

Bragança, Gracielle Pereira Pimenta; Freitas, Mariana de Sousa Costa; Isaías, Rosy Mary dos Santos

doi:10.1007/s00468-020-02027-1

Cited by 11 publications

(11 citation statements)

References 44 publications

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“…Similar results were found by Bragança et al . (2020) for extralaminar globoid galls on Inga ingoides (Fabaceae), and by Jorge et al . (2022) for intracaulinary E. erythropappus galls.…”

Section: Discussionmentioning

confidence: 90%

“…Increased accumulation of auxins and cytokinins in galls may cause rapid cell differentiation, leading to the development of vessels with narrow sizes (Aloni & Zimmermann 1983; Bragança et al . 2020). Otherwise, with a different balance between these hormones, the size of vessel elements may be larger than those of non‐galled organs, as observed in the intralaminar fusiform galls in I. ingoides , increasing the efficiency of water conduction.…”

Section: Discussionmentioning

confidence: 99%

“…As suggested by Bragança et al . (2020) for extralaminar globoid galls of I. ingoides , the water flow and storage in A. schaueriana gall parenchyma may be made possible by symplastic and apoplastic water extravasation due to a reduction in the size of xylem vessels. In other words, the reduction in water conduction inside the galls increases the pressure inside the vessels, leading to water extravasation to parenchyma cells (Feild & Brodribb 2013).…”

Section: Discussionmentioning

confidence: 99%

“…This compensatory mechanism (Bragança et al . 2020) would lead to water storage in the gall parenchyma. This can also be demonstrated by the lower hydraulic conductivity values in the xylem of the galls compared to a control vein, in the regions proximal and distal to the gall induced by Meunieriella sp.…”

Section: Discussionmentioning

confidence: 99%

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Mechanisms of hydraulic conductivity in the leaf galls of Meunieriella sp. (Cecidomyiidae) in Avicennia schaueriana (Acanthaceae): does vascularization explain the preferred sites of induction?

2022

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Intralaminar galls of Meunieriella result from ground tissue proliferation in leaves of Avicennia schaueriana, a typical halophytic mangrove. We tested if the preferred sites of gall induction were the midribs and secondary veins (SV) at the basal leaf portion, where the galls were expected to be largest; and if the vascular system in galls and adjacent regions was altered to favour water supply in galls, thus increasing their growth. Gall induction sites and gall sizes were quantified according to leaf portions and regions. Anatomical and histometric analyses in vascular and ground tissues of galls and adjacent regions were compared to equivalent regions of non‐galled leaves. The galls were largest at basal sites on leaves, the midrib and SV. More galls occurred on the apical portion of the leaf, and on the leaf blade and secondary vein regions. Changes in shape and vascular system area, number and diameter of vessel elements were detected in both galls and adjacent regions. Fewer and smaller‐sized vessel elements were observed in regions proximal to the galls and inside them. Gall size is not related with preferred induction sites, which could be explained by factors such as thermal balance. Alterations in the vascular system indicate reduced hydraulic conductivity in the xylem in the proximal region and inside galls, leading to water leakage to gall parenchyma cells. This compensatory mechanism explains the expansion and proliferation of water storage and spongy parenchyma cells in the galls, explaining the higher growth in more vascularized regions.

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“…Similar results were found by Bragança et al . (2020) for extralaminar globoid galls on Inga ingoides (Fabaceae), and by Jorge et al . (2022) for intracaulinary E. erythropappus galls.…”

Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Mechanisms of hydraulic conductivity in the leaf galls of Meunieriella sp. (Cecidomyiidae) in Avicennia schaueriana (Acanthaceae): does vascularization explain the preferred sites of induction?

2022

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“…This investment in cell wall thickness is important to control the turgor pressure during cell hypertrophy (Chanliaud et al, 2002), and confers an additional support for the GG. The structural and physiological traits of the common storage tissue have been related to the sink and storage of water and energetic resources (Castro et al, 2012;Oliveira et al, 2017;Bragança et al, 2020b). Water and energetic molecules accumulation increase gall succulence (tissue thickness) (Oliveira et al, 2017), and can also be consequence of the longest lifespan, as evidenced in the GG on M. gemmulata with the thickest cell walls as well as higher stratification of the common storage tissue.…”

Section: Structural Peculiarities In the Lopesia Gallsmentioning

confidence: 99%

Structural and Nutritional Peculiarities Related to Lifespan Differences on Four Lopesia Induced Bivalve-Shaped Galls on the Single Super-Host Mimosa gemmulata

et al. 2021

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Super-host plants are elegant models to evaluate the peculiarities of gall structural and nutritional profiles due to the stimuli of distinct gall inducers in temporal and spatial perspectives. Galls induced by congeneric insects, Lopesia spp. (Diptera, Cecidomyiidae) on the same host plant, Mimosa gemmulata Barneby (Fabaceae) were analyzed to estimate if variations of 1 or 2 months in gall lifespans may result in differences over the accumulation of nutritional resources, and their compartmentalization both in cell walls and protoplasm. Mimosa gemmulata hosts four Lopesia-induced galls: the lenticular bivalve-shaped gall (LG) with a 2-month life cycle, the brown lanceolate bivalve-shaped gall (BLG) and the green lanceolate bivalve-shaped gall (GLG) with 3 month-life cycles, and the globoid bivalve-shaped gall (GG) with a 4 month-life cycle. The comparisons among the four Lopesia galls, using anatomical, histometric, histochemical, and immunocytochemical tools, have demonstrated that the longest lifespan of the GG related to its highest increment in structural and nutritional traits compared with the LG, GLG, and BLG. The differences among the tissue stratification and cell wall thickness of the galls with the 2-month and the 3-month lifespans were subtle. However, the GG had thicker cell walls and higher stratification of the common storage tissue, schlerenchymatic layers and typical nutritive tissue than the other three gall morphospecies. The higher tissue thickness of the GG was followed by the formation of a bidirectional gradient of carbohydrates in the protoplasm, and the detection of xyloglucans in cell walls. Current data supported the presumption that the longest the lifespan, the highest the impact over the structural and nutritional metabolism of the Lopesia galls associated to M. gemmulata.

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Impact of the galling Dasineura sp. on the structural and chemical profile of Peumus boldus stems

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The influence of gall position over xylem features in leaflets of Inga ingoides (Rich.) Willd. (Fabaceae: Caesalpinioideae)

Cited by 11 publications

References 44 publications

Mechanisms of hydraulic conductivity in the leaf galls of Meunieriella sp. (Cecidomyiidae) in Avicennia schaueriana (Acanthaceae): does vascularization explain the preferred sites of induction?

Mechanisms of hydraulic conductivity in the leaf galls of Meunieriella sp. (Cecidomyiidae) in Avicennia schaueriana (Acanthaceae): does vascularization explain the preferred sites of induction?

Structural and Nutritional Peculiarities Related to Lifespan Differences on Four Lopesia Induced Bivalve-Shaped Galls on the Single Super-Host Mimosa gemmulata

Impact of the galling Dasineura sp. on the structural and chemical profile of Peumus boldus stems

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