Stem morpho-anatomy of Baccharis cylindrica (Less.) DC. (Asteraceae)

Budel, Jane Manfron; Duarte, Márcia do Rossil; Santos, Cid Aimbiré de Moraes

doi:10.1590/s1516-93322004000100014

Cited by 19 publications

(26 citation statements)

References 8 publications

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“…With reference to microscopic characters, the caulinar axis showing remaining epidermis, strands of chlorenchyma alternating with collenchyma, either endodermis or starch sheath limiting internally the cortex and vascular cambia forming phloem outward and xylem inward are common features of Asteraceae (Metcalfe & Chalk, 1950) and described in Baccharis (ArizaEspinar, 1973;Sá & Neves, 1996;Cortadi et al, 1999;Ortins & Akisue, 2000). Additionally, included phloem may occur in the family (Metcalfe & Chalk, 1950), as in B. cylindrica (Budel et al, 2004a). These aspects were observed in this investigation, except for the phloem.…”

Section: Discussionsupporting

confidence: 66%

“…For Metcalfe and Chalk (1988), the cuticle ornamentation may be relevant for diagnostic purposes. As found in the species studied, striate cuticle has been cited for the genus (Ariza-Espinar, 1973) and for B. cylindrica (Budel et al, 2003b;Budel et al, 2004a), B. gaudichaudiana (Budel et al, 2003a;Budel et al, 2003b), B. retusa (Silva & Grotta, 1971) and B. trimera (Cortadi et al, 1999;Budel et al, 2003b). In Asteraceae, the stomata may occur on both sides of the blade and they are anomocytic or anisocytic, being the former predominant (Metcalfe & Chalk, 1950).…”

Section: Discussionmentioning

confidence: 85%

“…The occurrence of calcium oxalate crystals is frequent in plants, although their size and number are responsive to changes in the concentration of calcium in the environment (Nakata, 2003). These crystals have been reported in B. articulata (ArizaEspinar, 1973;Cortadi et al, 1999;Ortins & Akisue, 2000;Budel et al, 2003b), B. cylindrica (Budel et al, 2003b;Budel et al, 2004a), B. gaudichaudiana (Budel et al, 2003a;Budel et al, 2003b), B. myriocephala (Sá & Neves, 1996) and B. trimera (Cortadi et al, 1999;Farmacopéia Brasileira, 2003;Budel et al, 2003b), as well as in B. usterii.…”

Section: Discussionmentioning

confidence: 99%

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Macro and microscopic characters of the aerial vegetative organs of Carqueja: Baccharis usterii Heering

Budel

Duarte

2010

Braz. arch. biol. technol.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

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Macro and microscopic characters of the aerial vegetative organs of Carqueja: Baccharis usterii Heering

Budel

Duarte

2010

Braz. arch. biol. technol.

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“…No data were found about the epidermal cuticle in the leaves of plants from the tribe Cichorieae. Cuticular striae have been found on the leaf surface in various species from the family Asteraceae representing the genera Vernonia, Bidens, and Baccharis [35,36]. A smooth cuticle was reported in Mikania lanuginosa leaves [37], whereas varied cuticular ornamentation (smooth, undulating, wrinkled, or striated) was observed in several species of the genus Cyanus [38].…”

Section: Discussionmentioning

confidence: 99%

“…Its value depends on environmental factors and plant species [51]. These traits of the epidermis are stable and have great diagnostic importance for differentiation between closely related taxa [35,52,53].…”

Section: Discussionmentioning

confidence: 99%

Micromorphology of the epidermis and anatomical structure of the leaves of Scorzonera hispanica L.

Chwil

Krawiec

et al. 2015

Acta Soc Bot Pol

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In Poland Scorzonera hispanica L. is rare in the wild. This species is used as a vegetable and medicinal plant. Currently, attempts are being made to introduce this plant into cultivation in Poland. In this study, comparative analyses were conducted of the epidermis surface micromorphology and anatomical structure of the leaves of S. hispanica 'Maxima' and 'Meres' . The investigations were performed using fluorescence, light and scanning electron microscopy. The cuticle on the surface of epidermal cells is smooth or striated. In the epidermis, there are anomocytic stomata. The stomatal index in the epidermis of the studied cultivars is 9.3-11%. In the midrib of the leaf, there is an aerial cavity which occupies a substantial area. In this place, cracking and breaking of the leaf blade were observed. Over the aerial cavity under the adaxial epidermis, there is a single layer of collenchyma cells and 1-2 rows of parenchyma cells. Tangential collenchyma is also present between the abaxial epidermis and large vascular bundles located in the midrib and on both sides of the large vascular bundles in the lamina. This tissue strengthens the leaf margin. The mesophyll cells located in the abaxial epidermis of the midrib form protrusions surrounding the large vascular bundles. The leaves of S. hispanica represent the equifacial type.

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Calcium oxalate crystal macropattern and its usefulness in the taxonomy of Baccharis (Asteraceae)

Raeski

Heiden

Novatski

et al. 2023

Microscopy Res & Technique

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This study provides a comprehensive account of the various types of calcium oxalate crystals found in the genus Baccharis and assesses the exceptional value of crystal macropatterns for the taxonomy of the genus. The morphotype, occurrence, and chemical composition of the crystals found in the stems and leaves are studied. The 44 species included in this study were selected based on a broad phylogeny‐based sampling covering seven subgenera and 31 sections. These species were chosen to represent all the main phylogenetic lineages of Baccharis; thus, the sampling also represents a comprehensive coverage concerning evolutionary significance for such a large and environmentally and economically important plant group. The samples were analyzed by light microscopy, scanning electron microscopy (SEM), and energy‐dispersive x‐ray spectroscopy (EDS). Several morphotypes of crystals, including druses, crystal sand, styloids and prisms, were present. Based on their chemical composition, the crystals were classified as pure calcium oxalate, mixtures of oxalates and sulfates, and mixtures of oxalates, sulfates, and silica. The crystal macropatterns observed in this study aid in species identification and provide novel data for the taxonomy of Baccharis. Research Highlights Most species of Baccharis have a specific crystalline pattern. Each species produces a crystal morphotype or a set of morphotypes specific to it. The crystals observed are formed by calcium oxalate.

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Stem morpho-anatomy of Baccharis cylindrica (Less.) DC. (Asteraceae)

Cited by 19 publications

References 8 publications

Macro and microscopic characters of the aerial vegetative organs of Carqueja: Baccharis usterii Heering

Macro and microscopic characters of the aerial vegetative organs of Carqueja: Baccharis usterii Heering

Micromorphology of the epidermis and anatomical structure of the leaves of Scorzonera hispanica L.

Calcium oxalate crystal macropattern and its usefulness in the taxonomy of Baccharis (Asteraceae)

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