Anatomical characteristics and antioxidant ability of Centaurea sadleriana reveals an adaptation towards drought tolerance

Luković, Jadranka; Malenčić, Đorđe; Zorić, Lana; Kodranov, Miroslava; Karanović, Dunja; Kiprovski, Biljana; Boża, Pal

doi:10.2478/s11535-013-0174-5

Cited by 4 publications

(10 citation statements)

References 27 publications

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“…Plants with isolateral leaf structure usually grow on dry habitats with intense solar radiation, shown for the genera Aster L., Galatella Cass., Tripolium Nees. (Karanović et al 2015), most of Centaurea species (Fahn and Cutler 1992;Luković et al 2013), as well as recorded for our studied species. Also, the amphistomatic leaves are characteristic of plants growing in highly lighted habitats (Fahmy 1997).…”

Section: Discussionsupporting

confidence: 52%

Comparative anatomical investigation of five Artemisia L. (Anthemideae, Asteraceae) species in view of taxonomy

et al. 2019

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Comparative anatomical analysis of vegetative organs has been conducted on Artemisia campestris L., A. absinthium L., A. arborescens L., A. judaica L. and A. herba-alba Asso, using light microscopy, in order to examine the most important anatomical features and to find new valid taxonomic characters. Results have shown that general root, stem and leaf anatomical features and nonglandular and glandular trichomes are shared by all species. However, some characters (parenchyma sheath, which surrounded vascular bundle and extended to both epidermises, subepidermal collenchyma and the absence of secretory canals in the leaves) link together A. absinthium and A. arborescens from the same section. Some characters, as periderm and lignified pith parenchyma cells (A. campestris and A. arborescens), nonendodermal secretory canals in root cortex (A. absinthium and A. judaica) and secretory canals in the leaf phloem (A. judaica and A. herba-alba), connect species belonging to different sections. Moreover, some characters could be considered as species-specific, nonendodermal secretory canals in the root secondary phloem, triangular leaf shape on the cross section and secretory canals in the leaf parenchyma for A. campestris, secretory canals in the stem pith for A. absinthium, crystals in the pith parenchyma cells for A. arborescens and the absence of root secretory canals for A. herba-alba. Given results revealed qualitative characters, on the basis of which the studied species are anatomically distinguishable between each other, provide valuable features for better species identification and contribute to the anatomy of the genus Artemisia.

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Section: Discussionsupporting

confidence: 52%

Comparative anatomical investigation of five Artemisia L. (Anthemideae, Asteraceae) species in view of taxonomy

et al. 2019

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“…Occurrence of cortical and medullar vascular bundles in the stems and peduncules, were also recorded as one of the main anatomical characteristics for the Centaurea spp. (Metcalfe & Chalk, 1957), as documented in Centaurea sadleriana Janka (Luković et al, 2013). Collateral cortical vascular bundles were also found in the stem of Ianthopappus corymbosus (Less.)…”

Section: Discussionmentioning

confidence: 91%

“…Species belonging to the genera Aster L., Galatella Cass. and Tripolium Nees (Karanović et al, 2015), as well as most of Centaurea species, have an isolateral leaf structure, which is characteristic for plant species which grow on dry habitats (Fahn & Cutler, 1992;Luković et al, 2013). Although Xeranthemum taxa inhabit open, insolated, arid habitats, both studied species have dorsiventral leaf structure ( Fig.…”

Section: Discussionmentioning

confidence: 94%

Anatomical characteristics of Xeranthemum L. (Compositae) species: taxonomical insights and evolution of life form

Gavrilović¹,

Rančić²,

Škundrić³

et al. 2019

PAK.J.BOT.

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Comparative anatomical and micromorphological analyses of root, stem, peduncle, leaf and inflorescence have been conducted on two Xeranthemum species, X. annuum and X. cylindraceum, by light microscopy (LM) and scanning electron microscopy (SEM). The main goal of the study was to examine the most important anatomical features and to find new valid taxonomic delimiting characters for the first time in both species. Regarding vegetative organs anatomy, the data obtained in this study indicated that both species possessed secondary tissues in the root, although these plants are annual. Also, stem anatomy was a typical of the Compositae family members, and anomocytic stomata type and dorsiventral leaf structure were present. On the involucral bracts surface crystals were noticeable, while highly developed multilayer sclerenchyma was present in the mesophyll. Palea anatomy was very similar to bract anatomy. Some floral features were as follows: lateral anther dehiscence, corolla composed of uniseriate epidermis and with a homogeneous parenchyma in the mesophyll, inferior ovary and anatropous ovule with basal placentation. The specific quantitative characters that were different between the examined species were emphasized. Some selected, well defined qualitative anatomical characters (e.g. shape of the young stem and peduncle cross-sections, type of glandular trichomes and cortical vascular bundles occurrence), on the basis of which the studied species were distinguishable, strengthen the taxonomy of the Xeranthemum genus and provide features for better identification of the taxa. This is the first study of the anatomy of Xeranthemum species and some of the characters found (secondary growth and dorsiventral leaves) points towards an adaptation of mesophilous ancestors to xeric habitats in Xeranthemum.

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“…Many studies on phytochemical characterisation have been conducted (e.g. Karamenderes et al 2007;Küpeli Akkol et al 2009;Aktumsek et al 2011;Luković et al 2013), yet the structure of these species has still been poorly described. Although chemical analyses and molecular data have greatly contributed to establishment of the species phylogeny, macro-and micromorphological features are still an irreplaceable source of information for this type of study.…”

Section: Discussionmentioning

confidence: 99%

“…In turn, Chiru et al (2013) observed three types of non-glandular trichomes in C. cyanus. While, Luković et al (2013) described two types of these trichomes in Centaurea sadleriana. We have demonstrated that the glandular trichomes found on the epidermal surface of C. cyanus bracts have 6-7 tiers.…”

Section: Discussionmentioning

confidence: 99%

Microstructural and histochemical analysis of aboveground organs of Centaurea cyanus used in herbal medicine

2019

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Centaurea cyanus L. is a valuable source of many different bioactive substances. It is used in herbal medicine, but the structure of its organs used as raw material and secretory tissues has been insufficiently examined. The aim of this paper was to investigate the microstructure of C. cyanus flowers, bracts, stems and leaves with particular emphasis on secretory structures. Moreover, the main classes of secondary metabolites present in the secretion were identified and the taxonomic value of some micromorphological and anatomical features was analysed. Histochemical, micromorphological and ultrastructural analyses of aboveground organs of C. cyanus were carried out using light, fluorescence, scanning and transmission electron microscopy. The analyses revealed the presence of petal papillae and a characteristic cuticular pattern on the petals, stamens and stylar hairs. There were four types of non-glandular trichomes on the bracts, leaves and stem surfaces. The epidermal cells of the bracts contained prismatic calcium oxalate crystals. Two kinds of secretory structures, i.e. glandular trichomes and ducts, were observed in the C. cyanus organs. The glandular trichomes were located on the bract and stem surfaces, and the ducts were detected in the leaves and stems. Ultrastructural analyses of the epithelium of the ducts showed the presence of strongly osmiophilic insoluble phenolic material in vacuoles as well as moderately osmiophilic insoluble lipidic material in elaioplasts and vesicles. The results of histochemical assays showed a heterogeneous nature of the duct secretion, which contained essential oil, lipids, flavonoids, tannins and terpenes containing steroids.

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Anatomical characteristics and antioxidant ability of Centaurea sadleriana reveals an adaptation towards drought tolerance

Cited by 4 publications

References 27 publications

Comparative anatomical investigation of five Artemisia L. (Anthemideae, Asteraceae) species in view of taxonomy

Comparative anatomical investigation of five Artemisia L. (Anthemideae, Asteraceae) species in view of taxonomy

Anatomical characteristics of Xeranthemum L. (Compositae) species: taxonomical insights and evolution of life form

Microstructural and histochemical analysis of aboveground organs of Centaurea cyanus used in herbal medicine

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