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

Raeski, Paola Aparecida; Heiden, Gustavo; Novatski, Andressa; Raman, Vijayasankar; Khan, Ikhlas A.; Budel, Jane Manfron

doi:10.22541/au.167492196.63331819/v1

Cited by 4 publications

(4 citation statements)

References 33 publications

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“…Simple non-glandular trichomes as observed in the present work have been reported for several genera of Asteraceae family, such as Baccharis [1,4,15], Calea [14 ] and Solidago [18]. The presence of crystals in trichomes is an additional characteristic helpful in species identification [20]. The occurrence of crystals in trichomes was previously mentioned in some members of the family Asteraceae including Baccharis punctulata DC.…”

Section: Resultssupporting

confidence: 80%

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Monchak,

Santos,

Koetz

et al. 2023

Braz. arch. biol. technol.

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The plant species identification process is one of the most critical stages of quality control of plant raw material. Microscopy serves as the most accessible means for this purpose. Epidermal appendages, such as trichomes, are important botanical markers of plant drugs, taking into account their presence or absence and micromorphology. Trichomes are useful in detecting adulterants or substitutes and in authenticating plant raw materials. The genus Solidago includes two morphologically similar South American species, S. chilensis Meyen and S. microglossa DC. (syn. S. chilensis var. megapotamica). The two species belong to the "S. chilensis" complex and are commonly called arnica-do-mato or arnica. They are HIGHLIGHTS• Solidago comprises two very similar South American species: S. chilensis and S. microglossa.• S. chilensis and S. microglossa can be differentiated microscopically.• Trichomes are sufficient to differentiate S. chilensis and S. microglossa even in a powder form.• The absence or presence of the uniseriate and/or biseriate no glandular trichomes determines the species.

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Section: Resultssupporting

confidence: 80%

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Monchak,

Santos,

Koetz

et al. 2023

Braz. arch. biol. technol.

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“…It is characterized by having a pointed end and the opposite end with a "V" shaped indentation, resembling the tip of an arrow [22].…”

Section: Arrow Shapedmentioning

confidence: 99%

Applications of Calcium Oxalate Crystal Microscopy in the Characterization of Baccharis articulata

Raeski,

Ayres,

Monteiro

et al. 2023

Braz. arch. biol. technol.

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carquejas. Eleven crystalline morphotypes, including druses, styloids and various shapes of prismatic and sand crystals, were evidenced by scanning electron microscopy. In addition, the elemental chemical composition and the degree of hydration of the crystals were analyzed by EDS and Raman spectroscopy. The results of this study would aid in the authentication of B. articulata and serve as a basis for future studies of other species of Baccharis.

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“…Anatomical studies are very relevant because they unravel key traits that help differentiate species (Cutter, 2002; Metcalfe & Chalk, 1950; Stuessy, 2009). A number of recent studies have reported the importance of microscopic features in, for example, the authentication and quality control of species of ethnomedicinal interest and in taxonomy (Antunes et al, 2023; Raeski et al, 2023). In the case of Convolvulaceae, anatomical studies have provided valuable data to support the taxonomy of the family.…”

Section: Introductionmentioning

confidence: 99%

Anatomical features of ecological importance and taxonomic value revealed by scanning electron microscopy and light microscopy in Camonea umbellata (L.) A.R. Simões & Staples (Convolvulaceae)

dos Santos,

Leite,

de Arruda

2024

Microscopy Res & Technique

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This article describes detailed and novel data on the anatomy and histochemistry of leaves, stems, and roots of Camonea umbellata (L.) A.R.Simões & Staples in different environments for the identification of characters with taxonomical value and of ecological importance, with provision of light and scanning electron microscopy images. To analyze the characters, we collected samples of the vegetative organs of three individuals in each of three populations, which were in a grazing area, an urban environment, and a biological reserve. The main diagnostic anatomical markers for the identification of C. umbellata include amphistomatic leaves, tetracytic and brachyparatetracytic stomata, peltate trichomes, long simple trichomes, epidermis with striated cuticle ornamentation, mesophyll with acute borders, presence of druses, secretory channels, angular collenchyma, fibrous pericycle in the stem, intraxylary phloem in the vegetative organs, oil bodies throughout the midrib, petiole, stem and root, and epicuticular waxes of the crust and coiled rodlet types. Since the characters above did not show variation in the environments evaluated, we consider these characters taxonomically useful for the identification of C. umbellata.Research Highlights The anatomy of the aerial vegetative organs of Camonnea umbellata retains common Convolvulaceae characters. The sinuosity of the epidermal cell walls and the density of trichomes in the epidermis of the petiole were visually variable characters among the analyzed individuals. Amphistomatic leaves, tetracytic and brachyparatetracytic stomata, peltate trichomes, epidermis with striated cuticle ornamentation, dorsiventral mesophyll with border acute, presence of druses, secretory structures, angular collenchyma, fibrous pericycle in the stem, intraxillary phloem, presence of oil bodies in all organs, and epicuticular waxes of the crust type and coiled rods were considered important anatomical markers for the recognition and correct identification of Camonea umbellata.

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

Cited by 4 publications

References 33 publications

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Applications of Calcium Oxalate Crystal Microscopy in the Characterization of Baccharis articulata

Anatomical features of ecological importance and taxonomic value revealed by scanning electron microscopy and light microscopy in Camonea umbellata (L.) A.R. Simões & Staples (Convolvulaceae)

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