Fruit coat patterns and morphological properties of seven species of &lt;i&gt;Symphytum&lt;/i&gt; L. (boraginaceae) from Turkey

Akçin, Öznur Ergen; Baki, Hilal

doi:10.3329/bjb.v38i2.5145

Cited by 3 publications

(3 citation statements)

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“…Although Boraginaceae is one of the most familiar families, and analyzed by the aspects of taxonomic characters, fruit coat patterns (Akçin and Baki, 2009), flower ecology (Denisow, 2008), pollen-pistil interaction (Ghorbel and Nabli, 1998) and pollen cytology (Montaner et al, 2003), related embryological data are limited. It has been known that studies on sexual process and reproduction are supplementary to phylogenetics and of special value at the genus level (Grant, 1981).…”

Section: Discussionmentioning

confidence: 99%

“…Although various studies have been performed on Symphytum genus in recent years, most of them are pointed to their chemical structure, karyology and phylogenetic analysis including morphological and molecular characters (Ulubelen and Doğanca, 1971;Ahmad et al, 1993;Mohammed et al, 1995;Akçin and Baki, 2009;Cohen, 2013). The best of our knowledge, there is little available information on the embryologic characters of Symphytum.…”

Section: Introductionmentioning

confidence: 99%

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Development of Male and Female Gametophyte in Symphytum orientale L. (Boraginaceae)

Vardar

Yavuz

2018

Not Sci Biol

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The presented study elucidates developmental features of male and female gametophyte in Symphytum orientale L. (Boraginaceae). Flower buds were collected from natural habitats (İstanbul-Turkey) in March-April. The anthers of S. orientale were tetrasporangiate with a persistent epidermis and its wall development conformed to the Dicotyledonous type. The endothecium developed fibrous wall thickenings. The middle layer was short-lived and the cells of the glandular tapetum became double nucleated. In the microspore mother cells cytokinesis originated simultaneously after meiosis and the microspore tetrads were tetrahedral or isobilateral. The mature pollen grains were 3-celled when spread to environment. The ovule was hemianatropous, unitegmic and tenuinucellar. The megaspore mother cell functioned directly from the archesporial cell. Polygonum type embryo sac developed from the chalazal megaspore of a linear tetrad generated after meiosis. The synergids were pyriform and the polar nuclei fused shortly before fertilization. The antipodal cells were large and persistent at the stage of globular embryo. Embryogenesis followed the Chenopodiad type and the endosperm represented cellular type. The detailed embryological data of Symphytum orientale L. (Boraginaceae), which is a herbaceous and perennial flowering plant will improve our knowledge of its reproductive behaviour, and provide to comprehend taxonomic connection with related taxa within the Symphytum/Boraginaceae.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Male and Female Gametophyte in Symphytum orientale L. (Boraginaceae)

Vardar

Yavuz

2018

Not Sci Biol

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“…В настоящее время в семействе Boraginaceae подробно изучена на электронном сканирующем микроскопе поверхность эремов некоторых представителей триб Eritrichieae, Asperugeae, Boragineae, Echiochileae, Trigonotideae, Lithospermeae, Cynoglosseae, Myosotideae, Heterocaryeae, Rochelieae, Heliotropioideae, Trichodesmeae (Nikiforova, 2006, 2008а, b, 2011Ovchinnikova, 2006Ovchinnikova, , 2007а, b, 2008Ovchinnikova, , 2009Ovchinnikova, , 2011Retief, Van Wyk, 2002;Akcin, 2007Akcin, , 2008Akcin, Ulu, 2008;Akcin, Baki, 2009;Akcin, Binzet, 2011;Hilger, 2014). Однако виды рода Nonea не были включены в эти исследования.…”

Section: Introductionunclassified

Ultrasculpture of the fruits surface of Azerbaijan Nonea species (Boraginaceae Juss.)

2018

turczaninowia

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Аннотация. Впервые проведено исследование поверхности плодов 18 видов рода Nonea, встречающихся в Азербайджане, и одного вида Nonea флоры России. Показано, что строение и ультраскульптура поверхности эремов имеют диагностическое значение на надвидовом и видовом уровнях и могут быть использованы для систематики рода Nonea. Эремы изученных видов различаются по размерам, форме, опушению, структуре поверхности и строению цикатрикса. Признаки строения поверхности эремов подтвердили самостоятельность N. bakuensis Popov ex V. Karimov, N. cyanocalyx Popov ex V. Karimov и N. flavescens (C. A. Mey.) Fisch. et C. A. Mey. N. bakuensis отличается от близких видов N. caspica, N. diffusa и N. melanocarpa яйцевидной формой эремов и ультраструктурой поверхности (клетки с плоскими бугорками неправильной формы, расположенные плотно друг к другу). В группе видов N. pulla (L.) DC. вид N. cyanocalyx выделяется формой эремов (яйцевидные или яйцевидно-шаровидные с хорошо оттянутой верхушкой) и строением кольца цикатрикса (высокое, морщинистое, по краю отчетливо зубчатое). Вид N. flavescens хорошо отличим от N. lutea и N. setosa выраженной ребристостью эремов, имеющих интенсивное опушение и мощное утолщение кольца цикатрикса. Виды N. diffusa и N. melanocarpa, иногда рассматриваемые в качестве синонимов N. caspica, отличаются от последнего формой эремов, что показывает их неконспецифичность.

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Symphytum ibericum Steven: LC–HRMS/MS-based phytochemical profile, in vitro antioxidant and enzyme inhibitory potential

Trifan

Zengin

Sinan

et al. 2022

Chem. Biol. Technol. Agric.

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Background Symphytum L. (comfrey, Boraginaceae) has a longstanding use as a remedy to alleviate the clinical symptomatology in arthritis, strains, contusions or sprains. In the recent years, considerable research efforts were put into assessing the chemico-biological profile of unexploited Symphytum species, with the aim to extend the medicinal valences of the genus to new pharmacological applications. However, to date there are no previous comprehensive phytochemical characterization and multi-biological evaluation of S. ibericum Steven, a perennial Boraginaceae plant distributed in the Northeastern Turkey and Caucasus region. Results Total phenolic and flavonoid content of extracts obtained from the leaves and roots of S. ibericum varied between 10.53 ± 0.20 to 84.95 ± 0.60 mg gallic acid equivalents/g and between 0.81 ± 0.06 to 20.88 ± 0.29 mg rutin equivalents/g. The liquid chromatography hyphenated with tandem high-resolution mass spectrometry (LC–HRMS/MS)-based phytochemical profiling revealed a number of 29 distinct compounds, such as phenolic acids (e.g., caffeic acid, rosmarinic acid, globoidnan B, rabdosiin, globoidnan A), flavonoids (e.g., quercetin derivatives, luteolin, apigenin), pyrrolizidine alkaloids (e.g., intermedine–N-oxide, lycopsamine-N-oxide, symphytine-N-oxide), organic and oxygenated unsaturated fatty acids. The evaluation of the antioxidant activity showed potent scavenging activity against synthetic radicals, cupric ion reducing (37.60 ± 0.15–436.26 ± 7.12 mg Trolox equivalents/g), ferric ion reducing (21.01 ± 0.74–229.99 ± 3.86 mg Trolox equivalents/g) and chelating capacity; in general, the leaf extracts displayed superior antioxidant effects than the corresponding root extracts. With respect to the inhibitory activity tested on various pharmacologically relevant enzymes, interesting anti-acetylcholinesterase (0.32 ± 0.03–3.32 ± 0.12 mg galanthamine equivalents/g), anti-butyrylcholinesterase (0.88 ± 0.06–5.85 ± 0.16 mg galanthamine equivalents/g) and anti-tyrosinase (21.84 ± 0.21–61.94 ± 2.86 mg kojic acid equivalents/g) properties were noticed. Exploratory multivariate analysis revealed four clusters with respect to phytochemical profile, of which one rich in danshensu, quercetin hexoside, dehydrorabdosiin, dihydrogloboidnan B and quercetin acetylhexoside. Conclusions As evidenced through the phytochemical characterization and multi-biological evaluation, S. ibericum can be regarded as a prospective source of pharmaceutical or cosmeceutical ingredients with putative uses in the management of chronic conditions linked to oxidative stress, such as Alzheimer’s disease or skin pigmentation disorders. Graphical Abstract

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Fruit coat patterns and morphological properties of seven species of <i>Symphytum</i> L. (boraginaceae) from Turkey

Cited by 3 publications

References 7 publications

Development of Male and Female Gametophyte in Symphytum orientale L. (Boraginaceae)

Development of Male and Female Gametophyte in Symphytum orientale L. (Boraginaceae)

Ultrasculpture of the fruits surface of Azerbaijan Nonea species (Boraginaceae Juss.)

Symphytum ibericum Steven: LC–HRMS/MS-based phytochemical profile, in vitro antioxidant and enzyme inhibitory potential

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