Fig 7 - uploaded by Ömer Koray Yaylaci
Content may be subject to copyright.
Pollen microphotography of investigated Onosma taxa. ac Equatorial view of a non acetolysed pollen in LM; d-f polar view of a non acetolysed pollen in LM; g-i equatorial view of an acetolysed
Source publication
Onosma atila-ocakii sp. nova [Boraginaceae, Sect. Asterotricha (Boiss.) Gürke] is described and illustrated as a new species. It grows in a steppe on magnesite rocks in Eskişehir province (Central Anatolia, Turkey). Its description, photographs, and an identification key including related species (O. roussaei DC. and O. aucheriana DC.) are given. D...
Context in source publication
Context 1
... intine thicknesses per- taining to taxa are measured a minimum 20 and a maximum 50 times. From these obtained measurements, a natural mathematical mean is calculated. Microphotographs were taken at the Eskis¸ehirEskis¸ehir Osmangazi University Science and Art Faculty, Department of Biology by Kameram TM digital camera and a Nikon 80i microscope (Fig. ...
Similar publications
The genus Mulinum is endemic to southern South America and is ecologically important because of its dominance in the vegetation of the high Andes and the Patagonian steppe. We present a treatment in which 10 species and 3 new varieties are accepted. A diagnostic key to the species is included, and lists of synonyms, morphological descriptions, obse...
This study aims to compare classification accuracies of land cover/use maps created from Sentinel-2 and Landsat-8 data. Istanbul metropolitan city of Turkey, with a population of around 14 million, having different landscape characteristics was selected as study area. Water, forest, agricultural areas, grasslands, transport network, urban, airport-...
Citations
... Onosma türleri, Türkiye ve İran başta olmak üzere dünya genelinde yayılış göstermektedirler (Jabbar ve ark., 2022). Türkiye 57'si endemik olmak üzere yaklaşık 105 tür (110 takson) içermektedir ve Onosma için önemli bir orijin merkezidir (Güner ve ark., 2012;Koyuncu et al., 2013;Binzet ve ark. 2018). ...
Türkçe adı “Emzik otu” olarak bilinen Onosma türleri, etnobotanik açıdan oldukça değerlidir. Bu çalışmada, Onosma nana’nın toprak üstü ve kök kısımlarının farklı çözücülerle (etanol, metanol ve etil asetat) elde edilen ekstrelerinin antioksidan, antimikrobiyal, enzim inhibisyon (α-amilaz, α-glukozidaz ve tirozidaz) ve DNA koruyucu aktivitesi ile fenolik bileşen analizinin (HPLC) yapılması amaçlanmıştır. Elde edilen sonuçlara göre, etanol ekstrelerinin diğer ekstrelere nazaran araştırılan özellikler bakımından daha etkin olduğu bulunmuştur. Etanol ekstrelerinin major fenolik bileşeni rosmarinik asit (kök: 2883.3 μg/g ekstre, toprak üstü: 11187.5 μg/g ekstre) olarak tespit edilmiştir. Sonuç olarak, bitkinin oldukça etkili antimikrobiyal aktiviteye sahip olduğu bulunmuştur (S. epidermidis ve P. vulgaris: MİK 32µg/mL). Bitkinin DNA koruyucu etkisi ve antimikrobiyal özellikleri ilk defa araştırılmıştır. Bitkinin doğal bir ajan olarak kullanılma potansiyeli olduğu söylenebilir. Bunun yanısıra, tespit edilen aktivitelerin detaylı çalışmalarla desteklenerek etki mekanizmalarının aydınlatılması ticari öneminin anlaşılması bakımından gereklidir.
... It is challenging to research the systematics of the unique genus Onosma (Koyuncu et al., 2013). The two studied Onosma varieties of the same species O. limitanea, differ clearly in palyno-anatomical traits. ...
... As demonstrated by the investigations on the genus Onosma, the information collected from palynological studies is sufficient to identify species. Koyuncu et al., (2013) identified a new Onosma species Onosma atilaocakii. The morphological identity of the new species was difficult from the closely related species O. roussaei and O. aucheriana. ...
... Similarly, while Chacón & al. (2019) included 257 Lithospermeae samples (180 species and 13 subspecies), their sampling of Onosma remained insufficient with only 64 newly sequenced samples (50 species and 4 subspecies). Furthermore, some recently described taxa (e.g., Onosma atila-ocakii O. Koyuncu & Yaylaci;Koyuncu & al. 2013) have never been included in a phylogenetic study, and their phylogenetic position remain unknown. In addition, it was reported that genus Onosma is not monophyletic, with the Eastern Asian genus Maharanga recovered as closely related to Eastern Asian Onosma, namely, O. rostellata Lehm., O. paniculata Bureau & Franch., O. hookeri C.B. Clarke, O. waltonii Duthie, O. sinicum and O. pyramidalis Hook.f. ...
Tribe Lithospermeae (Boraginaceae) consists of ca. 26 genera and 470 species, in which Onosma constitutes approximately one third of the species (~150). Although the tribe is strongly supported as monophyletic, both generic and species boundaries remain ambiguous. Among them, not only the phylogenetic position of Eastern Asian Onosma species, but also the taxonomic limits of the genus remain unclear. Whether Eastern Asian Onosma is monophyletic, or the genus should be widened to include Maharanga, and maybe Cystostemon, are still open questions. For these reasons, I performed 16 phylogenetic analyses with different taxon coverages, alignments, gene regions and outgroups, with up to 746 taxa of tribe Lithospermeae and with five DNA regions, using data from GenBank. The results, with the widest taxon coverage to date, show that while genus Onosma is not monophyletic in any of the analyses, the phylogenetic relationships among Onosma s.s., Eastern Asian Onosma, Maharanga and Cystostemon differ among analyses. However, the approximately unbiased (AU) test showed that the topology (((Eastern Asian Onosma+Maharanga) Cystostemon) Onosma s.s.) is overwhelmingly supported. Therefore, the current study highlights the importance of taxon, gene and outgroup sampling in Onosma phylogenetics.
... Onosma genus which is the leading of Boraginaceae family consists of 230 species, distributed thorough Mediterranean, Europe, and Asia [9]. It is represented by almost 103 species in Turkey flora [10,11]. ...
Onosma species have been used commonly for traditional medicine for years due to their bioactive compounds content. Onosma bourgaei aerial part was extracted with hexane and methanol successively. The methanol extract was subjected to chromatographic techniques to isolate allantoin (1), 3,4-dihydroxybenzaldehyde (2), luteolin-7-O-glucoside (3), apigenin-7-O-β-glucoside (4), diosmetin-7-O-β-glucoside (5), rosmarinic acid (6), and globoidnan A (7). The structure of isolated compounds were identified by spectroscopic techniques such as 1D-NMR, 2D-NMR, FTIR, and LC-TOF/MS/MS. Antiproliferative activity of extract and natural compounds were carried out using HeLa (human epithelial cervix adenocarcinoma, ATCC® CCL-2™), HT29 (human colorectal adenocarcinoma, ATCC® HTB38™), MCF7 (human mammary gland adenocarcinoma, ATCC® HTB22™), and A549 (human lung carcinoma, ATCC® CCL185™) cancerous cells and normal cells, FL (human epithelial amnion cell, ATCC® CCL62™). Lactate dehydrogenase (LDH) was performed for cytotoxicity. The compounds, 4, 6, and 7 displayed the strong antiproliferative activity against corresponding cell lines. Apigenin-7-O-β-glucoside (4) revealed the excellent activity on HeLa, HT29, A549, and MCF6 cancer cell lines with the values of (IC50, µM) 167.3, 196.8 181.1, and 203.5, respectively, compared standard compound, cisplatin.
... The new taxa were assessed based on the diagnostic keys of Flora Iranica (Riedl, 1967), Flora of Iran (Khatamsaz, 2002), Flora of Turkey (Riedl, 1979), Flora of USSR (Popov, 1953), Boissier (1879), Johnston (1954), Post (1966), Polunin (1969), Ball (1972) and Nasir & Ali (1979). Several newly introduced taxa of Onosma were evaluated and compared with our new taxa (see Ghahreman and Attar, 1996;Attar and Joharchi, 2006;Attar and Hamzehee, 2007;Binzet and Orcan, 2007;Kandemir and Türkemen, 2010;Aytac and Türkmen, 2011;Koyuncu et al., 2013;Mehrabian et al., 2013;Ahmad, 2014;Binzet, 2016 a, b;Cecchi et al., 2016;Binzet and Eren, 2018 Dehshiri, 2018;He et al., 2018He et al., , 2020. Additionally, more than 2500 accessions of Onosma specimens, and images of type specimens in several herbaria of Iran (HSBU!, TARI!, IRAN!) and Europe (W!, WU!, LE, BG! JE!, C!, B!, G!, K) (Thiers 2019) were studied to improve our taxonomic evidence for introducing the new species. ...
... Heteotricha there are both simple setae and asterosetae on the basal leaves of the same plant. (Boissier, 1879;Peruzzi et al., 2004;Peruzzi and Passalacqua, 2008;Koyuncu et al., 2013;Mehrabian et al., 2013;Binzet, 2016a, b, Cecchi et al., 2016. In general, the terminology of the structure of the indumentum, and phytogeographical terms are described as follows: Tubercle: a prominent multicellular structure on the leaf surface in Onosma with bristles arising from it. ...
Onosma atrii and O. persica are described and illustrated as new species and O. caucasica Levin is recorded for the first time from northwestern Iran. The two new species are placed in subsect. Asterotricha (Boiss.) Gürke, because of the asterotrichous indumentum (stellate trichomes) of their basal leaves. An extensive review of the literature and comparison with specimens from various European and Asiatic herbaria led to the recognition of these novelties. Our argument for these innovations is based on observation of significant differences in taxonomically important morphological characters including trichome type, shape and size of basal and cauline leaves, shape and size of calyx and corolla, annulus hairs, anther length, connection type and degree of exsertion, and nutlet morphology. The diagnostic morphological characters of closely related species are discussed, and for each new species a detailed description and details of distribution and conservation status are provided. An updated synoptical key to the species known from the Flora Iranica region and Atropatene sub-province is provided.
... 59 of these 102 species are endemic to Turkey and endemism ratio of the species is ca. 60% (Riedl, 1978;Davis et al., 1988;Yıldırımlı, 2000;Riedl et al., 2005;Binzet & Orcan, 2007;Kandemir & Türkmen, 2010;Aytaç & Türkmen, 2011;Koyuncu et al., 2013;Binzet, 2016(a,b); Binzet & Eren, 2018). ...
... On the other hand, there are 102 plant species belonging to the Onosma in Turkey. According to floral records, approximately 50 % of these species are endemic to this country (Binzet, 2016;Kandemir and Türkmen, 2010;Koyuncu et al., 2013). According to the literature data, it is known that Onosma species are frequently used in the treatment of various ailments such as bronchitis, strangury, leucoderma, abdominal pain, and fever. ...
It is known that Onosma species are frequently used in the treatment of various ailments such as bronchitis, strangury, leucoderma, abdominal pain and fever. The aim of this study was to investigate the antioxidant, tyrosinase and α-amylase inhibitory activities of the MeOH extracts obtained from the aerial parts of Onosma aucheriana DC., O. frutescens Lam., and O. sericea Willd. Total phenolic/flavonoid and liquid chromatography electrospray ionization tandem mass spectrometry (LC–ESI–MS/MS) analyzes were also performed to determine the chemical composition of the extracts. In antioxidant activity tests, except for ferrous ion chelating, the activity of O. frutescens was found to be significantly higher than the others. The antioxidant activity of this species in 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), cupric reducing antioxidant capacity (CUPRAC), ferric reducing antioxidant power (FRAP), and phosphomolybdenum tests were found to be 1.14, 1.04, 0.53, 0.35 and 1.18 mg/mL, respectively. The ferrous ion chelating assays resulted in the superiority of O. aucheriana [the half maximal inhibitory concentration (IC50): 2.57 mg/mL]. In tyrosinase and α-amylase inhibitory activity tests, it was found that the activity potentials of O. aucheriana and O. sericea extracts were quite close to each other. Tyrosinase and α-amylase inhibitory activity of O. aucheriana were determined as 2.19 and 2.51 mg/mL. Additionally, the IC50 values of O. sericea on the same enzymes were measured as 2.28 and 2.50 mg/mL. As a result of the spectrophotometric analysis, when compared with the others, it was understood that O. frutescens and O. sericea extracts were richer in phenolics and flavonoids, respectively. Chromatographic analyzes have shown that the extracts contain high amounts of rosmarinic acid, apigenin 7-glucoside, luteolin 7-glucoside, hesperidin, hyperoside, ferulic acid, vanillic acid, caffeic acid and 4-hydroxybenzoic acid.
... In Turkey the Onosma genus is represented by about 104 species and the endemism rate of species is 52% (Riedl 1978, Davis et al. 1988, Riedl et al. 2005, Binzet and Orcan 2007, Kandemir and Türkmen 2010, Aytaç and Türkmen 2011, Binzet 2012, Koyuncu et al. 2013, Tarımcılar et al. 2015, Cecchi et al. 2016, Binzet 2016a, and 2016band Binzet and Eren 2018. Several Onosma species are used as herbs, folk medicines and dyes. ...
Three Onosma L. species (O. papillosa Riedl, O. rutila Hub-Mor. and O. auriculata Aucher ex DC.) were examined anatomically. All these taxa had secondary root structure and xylem which were composed of sclerenchymatic cells and tracheary elements. O. papillosa has crystals and sclereids in the stem and leaf. Sand crystals are seen in the pith region of O. auriculata. O. papillosa and O. auriculata has bifacial leaf types and O. rutila has equifacial type. Stomata are anisocytic, anomocytic and staurocytic. These species have long and short simple eglandular and glandular trichomes. Setae with glabrous tubercles are present in O. papillosa and O. rutila. O. auriculata has porrect-stellate trichomes. Simple trichomes are unicellular and generally short. They have lignified, ornamental or smooth walls.
... Riedl, 1978;Davis, 1988;Ridel et al., 2005;Binzet & Orcam, 2007;Kandemir & Turkmen, 2010;Aytac & Turkmen, 2011;Koyuncu et al., 2013;Mehrabian, 2015;Binzet, 2016;Cecchi et al., ...
Geobotanical studies of taxa with a high proportion of richness and endemism plays a prominent role in conservation strategies. Iran is one of the main diversity centers of the genus OnosmaL. in context the richness as well endemism that represents the necessity of its conservation assessments. In this study, the distribution patterns of the mentioned taxa have been evaluated in Western Azarbaidjan as well as western areas of Eastern Azarbaidjan based on filed works and herbarium assessment by GIS techniques.93 populations of 10 species collected and studied. The results showing that the mentioned taxa mainly distributed between 1100-2900 m as well as sedimentary and quaternary geological formations in the studied area. Besides the abundance and diversity of subsect. Haplotricha is more than other subsections in the studied area. In this study distribution maps prepared for studied species and the most important species and habitats are introduced for conservation priority. Generally, climate change and droughts, excessive grazing and habitat destruction are the main threats for this genus in studied area. It should be noted that rare taxa have small populations and have been mostly reported from restricted localities that appear high vulnerability to threatening factors. The results of this study can be effective to prepare conservation plans for this valuable genus.
... Riedl, 1978;Davis, 1988;Ridel et al., 2005;Binzet & Orcam, 2007;Kandemir & Turkmen, 2010;Aytac & Turkmen, 2011;Koyuncu et al., 2013;Mehrabian, 2015;Binzet, 2016;Cecchi et al., ...
