Leaf anatomy and histochemistry of secretory structures of Zanthoxylum caribaeum Lam. (Rutaceae)

Andrade, Carine Raisa Barbosa de; Martins, Fabiano Machado; Brandão, Hugo Neves; Alves, Clayton Queiroz; Freitas-Silva, Larisse de

doi:10.1007/s40415-020-00658-9

Cited by 6 publications

(23 citation statements)

References 16 publications

(26 reference statements)

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“…Oil dots are observed macroscopically both in fossil material and in Z. caribaeum. Anatomical studies have shown that the oil glands are scattered in the mesophyll, and the secretions are drop shaped (Hartley, 1966;Andrade et al, 2020). The presence of glandular trichomes in epidermal depressions, as well as the secretory cavities (Andrade et al, 2020) recorded in Z. caribaeum seem to resemble the structures observed in the fossils studied (Figures 5G, H, J).…”

Section: Sistematic Paleobotanymentioning

confidence: 55%

“…Anatomical studies have shown that the oil glands are scattered in the mesophyll, and the secretions are drop shaped (Hartley, 1966;Andrade et al, 2020). The presence of glandular trichomes in epidermal depressions, as well as the secretory cavities (Andrade et al, 2020) recorded in Z. caribaeum seem to resemble the structures observed in the fossils studied (Figures 5G, H, J). However, the fragmented state of the leaf epidermis of the analyzed fossils did not allows a more precise analysis of the anatomical characters, which raises doubts about the species determination.…”

Section: Sistematic Paleobotanymentioning

confidence: 55%

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First record of plant macrofossil from the Boa Vista Formation, Takutu Basin, Roraima State, Brazil

Oliva¹,

Souza²,

Iannuzzi³

et al. 2022

Rev. bras. paleontol.

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Clayey intraclasts containing leaves preserved as impressions and compressions were collected from the Takutu River channel in the State of Roraima, Brazil. In the present study, 23 leaf fragments are described (morphologically and anatomically) and their taxonomic identity is proposed. These fossiliferous intraclasts were suggested in previous studies as coming from the Boa Vista Formation (Upper Pleistocene–Holocene). With the aim of finding new evidence to support this correlation, X-ray diffractometry (XRD) and Laser induced-breakdown spectroscopy (LIBS) analysis were performed, comparing the fossiliferous sample with two outcrops from the Boa Vista Formation. The results evidenced the chemical and mineralogical similarity between the fossiliferous intraclasts and both outcrops, suggesting their correlation with the Boa Vista Formation. Taxonomically, the specimens were recognized as fossil representatives of Dilleniaceae Salisb., Byrsonima Rich. ex Kunth (Malpighiaceae), Zanthoxylum L. (Rutaceae), and other six morphotypes. These taxa represent typical elements of the savanna (lavrados) of Roraima. The anatomical-cutillary characters of the mummified leaves indicate the dominance of xeromorphic plants, similar to the predominant woody species in the “lavrado” today, thus suggesting the same climatic-environmental conditions. Keywords: fossil leaves, leaf architecture, cuticular anatomy, angiosperm, Cenozoic.

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Section: Sistematic Paleobotanymentioning

confidence: 55%

Section: Sistematic Paleobotanymentioning

confidence: 55%

First record of plant macrofossil from the Boa Vista Formation, Takutu Basin, Roraima State, Brazil

Oliva¹,

Souza²,

Iannuzzi³

et al. 2022

Rev. bras. paleontol.

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“…Huang and Zanthoxylum armatum DC. (de Andrade et al, 2020). The stomata of Z. kleinii are classified as anisocytic, tetracytic, and anomocytic (Figure 2a,b).…”

Section: Energy Dispersive X-ray Spectroscopymentioning

confidence: 99%

“…Non-glandular trichomes, of the stellated type, were found in Z. kleinii in the midrib region (Figure 2f), which differs from the species Z. armatum, which does not present trichomes (Ibrar et al, 2017). In cross section, the central vein has a concave-convex shape (Figure 2j), being more prominent on the abaxial surface, resembling Z. caribaeum ( de Andrade et al, 2020) and differing from Z. armatum, which presents a plano-convex adaxial surface while the abaxial surface is semicircular in appearance (Barkatullah et al, 2014). In Z. armatum, the central vein is covered by a thin layer of cuticle (Alam & Saqib, 2015).…”

Section: Energy Dispersive X-ray Spectroscopymentioning

confidence: 99%

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Morphoanatomical study of the species Zanthoxylum kleinii (R.S. Cowan) P.G. Waterman (Rutaceae)

Fladzinski,

Armstrong,

dos Anjos

et al. 2024

Microscopy Res & Technique

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The order Sapindales is comprised of nine families and in Brazil it is represented by six, including Rutaceae Juss., which constitutes the largest group of this order. A variety of species of Zanthoxylum L. are distributed throughout the country, and among them is the species Zanthoxylum kleinii (R.S. Cowan) P.G. Waterman, which is found in the states of Brazil. This study aimed to characterize the morphoanatomy of the leaf, petiole, rachis, and stem of the species Z. kleinii. Histochemical tests were performed, and the sections were visualized under optical and scanning electron microscopy. The analysis showed that the morphoanatomical characteristics of the species are: hypoestomatic leaflets; stomata classified as anomocytic, tetracytic, and anisocytic; dorsiventral mesophyll; cavities that produce a secretion of lipid nature, present in the leaflet, rachis, and petiole; colleters distributed in the leaf; presence of simple non‐glandular trichomes in all structures; and prismatic crystals in the petiole. Histochemical tests indicated the presence of phenolic and lipophilic compounds, mucilage, and lignin. With the result of this research, it was possible to identify the nature of the compounds secreted by the secretory structures of the leaves; in addition, the morphoanatomical characterization of Z. kleinii can provide relevant data for future studies for other organs of the species not yet described. Furthermore, contributing concomitantly with data for the genus, in this way, supporting to differentiate them.Research Highlights Ultrastructural features observed by microscopic techniques. Calcium oxalate crystals present in the rachis. Microchemical tests confirmed the presence of colleters in the leaflet.

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Characterization of osmophore activity and secondary metabolite localization in fragrant ephemeral flowers of Murraya paniculata (Linn.) Jack (Rutaceae)

2021

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Leaf anatomy and histochemistry of secretory structures of Zanthoxylum caribaeum Lam. (Rutaceae)

Cited by 6 publications

References 16 publications

First record of plant macrofossil from the Boa Vista Formation, Takutu Basin, Roraima State, Brazil

First record of plant macrofossil from the Boa Vista Formation, Takutu Basin, Roraima State, Brazil

Morphoanatomical study of the species Zanthoxylum kleinii (R.S. Cowan) P.G. Waterman (Rutaceae)

Characterization of osmophore activity and secondary metabolite localization in fragrant ephemeral flowers of Murraya paniculata (Linn.) Jack (Rutaceae)

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