Anatomy of vegetative organs of Scutellaria agrestis, a medicinal plant cultivated by riverine populations of the Brazilian Amazon

Oliveira, Andréia Barroncas de; Mendonça, Maria Sílvia de; Meira, Renata Maria Strozi Alves

doi:10.1590/s0102-695x2013005000034

Cited by 10 publications

(8 citation statements)

References 24 publications

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“…Scutellaria altissima had two main types of glandular trichome, widespread in the Lamiaceae : peltate and capitate (Werker, 2000; Giuliani et al, 2017a; Giuliani et al, 2018; Najar et al, 2018). The former were present on the whole plant surface, as already documented for other Scutellaria species (Giuliani & Maleci Bini, 2008; Dereboylu et al, 2012; De Oliveira et al, 2013: Fico G., personal observation ). The latter were distinguished in two subtypes: short‐stalked capitate and long‐stalked capitate trichomes, with different distribution patterns.…”

Section: Discussionsupporting

confidence: 74%

A novel study approach on Scutellaria altissima L. cultivated at the Ghirardi Botanic Garden (Lombardy, Italy)

et al. 2020

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Within an Open Science project, research was carried out to describe to the public of the Ghirardi Botanic Garden (BS, Lombardy, Italy) the invisible features of plants. This work is dedicated to Scutellaria altissima L. (Lamiaceae). Micromorphological, histochemical and phytochemical investigations were conducted on the vegetative and reproductive organs to correlate the structures involved in the emission of substances and their unique productivity. This work reports volatile organic compound (VOC) profiles of leaves and flowers and the composition of essential oil (EO) obtained from aerial parts of plants cultivated in Italy that have never been described before. Three morphotypes of glandular trichomes were observed: peltate, short‐stalked capitate and long‐stalked capitate. Peltate trichomes were the main producers of terpenes, short‐stalked capitates of polysaccharides and long‐stalked capitates of terpenes and polyphenols. The leaf VOC profile showed heterogeneous composition, with non‐terpene derivatives as the major chemical class (71.04%), while monoterpene hydrocarbons represented almost the totality of the flower (99.73%). The leaf presented a higher number of total (37 versus 11) and exclusive (33 versus 7) compounds. (Z)‐3‐Hexenol acetate was most abundant in the leaf and (E)‐β‐ocimene in the flower. Four common compounds were detected: β‐pinene, β‐caryophyllene, γ‐muurolene and germacrene‐D. The EO contaied 21 compounds, dominated by β‐caryophyllene, linalool and hexahydrofarnesyl acetone. This research allowed us to correlate morphotypes of the secretory structures with the production of secondary metabolites, with the aim of providing the public of the Ghirardi Botanic Garden with a dedicated iconographic approach, which accounts for olfactory perception linked to S. altissima.

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Section: Discussionsupporting

confidence: 74%

A novel study approach on Scutellaria altissima L. cultivated at the Ghirardi Botanic Garden (Lombardy, Italy)

et al. 2020

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“…The glandular trichomes were numerous and belonged to the two main types occurring in the family Lamiaceae: peltate and capitate (Werker, 2006;Giuliani et al, 2017a, Giuliani et al, 2018. The peltate ones occurred on both the vegetative and reproductive organs, as documented in other Scutellaria species (Giuliani and Maleci Bini, 2008;Dereboylu et al, 2012;De Oliveira et al, 2013;Giuliani et al, Unpublished results (a) Among the former, germacrene D (34, 31.65%), 1,8-cineole (3, 8.00%) and bicyclogermacrene (37, 2.89%) dominated, among the latter valencene (36, 1.82%). Twentyone common compounds were identified: β-caryophyllene (22, 34.12% leaves; 34.97% flowers) was the most abundant one, followed by α-humulene (29, 3.01% leaves; 3.08% flowers), alloaromadendrene (31, 2.43% leaves; 1.04% flowers), α-copaene (17, 2.10% leaves; 2.72% flowers) and β-copaene (23, 2.17% leaves; 1.52% flowers).…”

Section: Discussionmentioning

confidence: 79%

“…The family Lamiaceae is widespread worldwide and includes 252 genera and 6800 species (Judd et al, 2009;De Oliveira et al, 2013). Due to their pleasant fragrances, produced in the glandular trichomes, many species are used in the herbal, food and cosmetic sectors (Akçin et al, 2011) and are widely employed in the folk medicine and as ornamentals (Baytop, 1999;Özdemir and Şenel, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…The commercial interest of the Lamiaceae is mainly related to the presence of glandular trichomes (Werker, 2006), responsible for the synthesis of natural bioactive compounds that display a crucial ecological role (Maffei, 2010;Giuliani et al, 2017a;Giuliani et al, 2017b;Giuliani et al, 2018). The literature proposed several morphological studies focused on the glandular indumentum of species belonging to Scutellaria (Giuliani and Maleci Bini, 2008;Dereboylu et al, 2012;De Oliveira et al, 2013;Cali, 2017aCali, , 2017b Unpublished results (a), (b)), however none of them referred to S. caucasica.…”

Section: Introductionmentioning

confidence: 99%

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Scutellaria caucasica A. Ham.: Morphological features and headspace characterization

Giuliani

Bottoni

Ascrizzi

et al. 2020

Flora

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In the context of a wide research project, a micromorphological and phytochemical characterization was performed on the vegetative and reproductive organs of Scutellaria caucasica A. Ham. (Lamiaceae), preserved at the Ghirardi Botanic Garden (Toscolano Maderno, BS, Lombardy, Italy). The morphological survey revealed the presence of both non-glandular and glandular trichomes. The latter belonged to three different morphotypes: peltate, short-stalked and long-stalked capitate. Histochemical assays demonstrated that the terpenes biosynthesis mainly took place in the peltates, while short-stalked capitates secreted only polysaccharides; the long-stalked ones mainly produced polysaccharides, coupled with terpene and polyphenolic fractions. An element of novelty was represented by the characterization of the VOC emission profile. Leaves and flowers showed differences in their emissions: the floral profile had a higher number of compounds than that of the leaves (37 vs 29), with a higher heterogeneity. The almost totality of the leaf profile is characterized by sesquiterpene hydrocarbons (98.76%), while the flowers presented a more varied composition, with sesquiterpene hydrocarbons (87.19%), monoterpenes (10.39% oxygenated, 1.82% hydrocarbons) and non-terpenes derivatives (0.58%). The most abundant compounds were γ-muurolene (42.57%) and β-caryophyllene (34.97%) in the leaves and in the flowers, respectively. In the flower headspace, 16 exclusive compounds were identified, among which germacrene D (31.65%) dominated; leaves had 8 exclusive compounds, with valencene (1.82%) as the most represented one. 21 common compounds were revealed: β-caryophyllene (34.12% leaves; 34.97% flowers), αhumulene (3.01% leaves; 3.08% flowers), alloaromadendrene (2.43% leaves; 1.04% flowers), α-copaene (2.10% leaves; 2.72% flowers) and β-copaene (2.17% leaves; 1.52% flowers) were the most abundant ones. γ-Muurolene relative abundances (42.57% leaves; 0.65% flowers) were very different between the two profiles. Overall, this work represented the first multidisciplinary study on S. caucasica, combining a scientific research approach with the policies of the Open Science.

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“…The investigations on Scutellaria L. species are rather limited. The studies carried out on Scutellaria species shows only general characterization such as general morphological and anatomical study on varies organs of Scutellaria species (Özdemir and Altan, 2005) and or very brief anatomical description on the genus species (Hatamneia et al, 2008;Oliveira et al, 2013). The root anatomy of Lamiaceae family has some imported anatomical information (Metcalfe and Chalk, 1972).…”

Section: Discussionmentioning

confidence: 99%

Anatomical And Glandular Trichome Characteristics of Scutellaria salviifolıa (Lamiaceae) Endemic to Turkey

Çalı¹

2017

IJAB

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The anatomy and glandular trichome morphology of endemic Scutellaria salviifolia Bentham (Lamiaceae) were examined to comprehend the important characteristics for systematic purposes. Some anatomical characters for example often 2 rarely 9-12 rowed pith rays in roots, the quadrangular stem and sclerenchymatous cells groups on the corners of stem, caryophyllaceous stoma and izobilateral leaf, one small subsidiary bundle on the corners and one big vascular bundle in petiole provide important information of taxonomical significance. Four different glandular trichome types were determined on S. salviifolia. The glandular trichome types were peltate (type I), type IIA, type IIB and type IIC capitate glandular. Peltate, type IIA and type IIB capitate glandular trichomes were seen nearly all organs of S. salviifolia, but type IIC capitate glandular trichomes were observed on only calyx. Type IIC capitate glandular trichomes are of very special type, which can be the significant taxonomic character of plant.

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Anatomy of vegetative organs of Scutellaria agrestis, a medicinal plant cultivated by riverine populations of the Brazilian Amazon

Cited by 10 publications

References 24 publications

A novel study approach on Scutellaria altissima L. cultivated at the Ghirardi Botanic Garden (Lombardy, Italy)

A novel study approach on Scutellaria altissima L. cultivated at the Ghirardi Botanic Garden (Lombardy, Italy)

Scutellaria caucasica A. Ham.: Morphological features and headspace characterization

Anatomical And Glandular Trichome Characteristics of Scutellaria salviifolıa (Lamiaceae) Endemic to Turkey

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