Fig 1 - uploaded by Bilge Tunçkol
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General appearance of Knautia arvensis (L.) Coult (a = plant habit; b = basal leaves; c = cauline leaves; d = infl orescence; e = capitula; f = achenes; g = involucral bracts).
Source publication
Knautia arvensis (L.) Coult. (Caprifoliaceae), collected from Küre Mountains National Park (Kastamonu Section), is reported for the fi rst time for the fl ora of Turkey. A brief description of the plant along with photographs and distribution map is given. Additionally, its taxonomic relationship with other closely allied taxa are examined and disc...
Context in source publication
Context 1
... give the following description of the Knautia species newly discovered for Turkey. For photographic documentation of plant morphology see Figure 1. Description: Perennial; rootstock multicapital, decurrent; stems 80-100(-150) cm, erect, sympodial, laxy cespitose, with leaf rosettes. ...
Similar publications
Knautia goecmenii, from Nif Mountain (İzmir) in western Anatolia (Turkey), is described as a new species based on morphological and molecular evidence. Its phylogenetic relationships within the genus are provided based on the nuclear-encoded ribosomal internal transcribed spacer (ITS) region. Bayesian and Maximum Likelihood analyses of the molecula...
Citations
... K. arvensis, which is present in the natural flora of Turkey, was collected from the Istanbul-Marmara region. The flora of Turkey includes 10 Knautia species, 2 of which are endemic [13]. Biosynthesis, characterization, antibacterial and antifungal studies of the synthesized CuONPs were performed. ...
Copper oxide nanoparticles (CuONPs) synthesized using Knautia arvensis flower extract in an environmentally friendly and one-step procedure were characterized by UV–vis, FT-IR, SEM and DLS. The in vitro antibacterial and antifungal activities of CuONPs were determined using E. coli, S. aureus and A. niger. In silico antibacterial and antifungal evaluation of CuONPs were performed by molecular docking analysis using chitin deacetylase of A. niger, topoisomerase IV of E. coli and tyrosyl-tRNA synthetase of S. aureus. The best binding energy was determined using these microbial targets in molecular docking analyses and the antimicrobial mechanisms between the microorganism and the CuONP were elucidated. The degradation potential of Remazol brilliant blue R (RBBR) and Napthol blue black (NBB) dyes in the presence of CuONPs were investigated. The peak obtained at 289 nm as a result of UV–vis analysis revealed the presence of CuONPs. The spherical morphology of CuONPs and the particle size varying between 88–289 nm were visualized by SEM. DLS analysis pointed out the mean diameter of CuONPs was 189 nm along with the PDI value of 0.324. The 600 and 595 cm⁻¹ vibrations attained in the FT-IR spectroscopy showed the presence of CuONPs. In addition, the presence of phenolic compounds found in the plant extract responsible for bio-capping of copper ions into CuONPs were enlightened by the FT-IR analysis. Dye degradation activity of CuONPs was found as 69% and 71% using NBB and RBBR at 50 °C in 90 min, respectively. Antifungal and antibacterial interactions of CuONPs with chitin deacetylase of A. niger, topoisomerase IV of E. coli and tyrosyl-tRNA synthetase of S. aureus were analyzed in order to reveal the antimicrobial mechanisms of CuONPs and it was found that CuONPs demonstrate significant interactions with those proteins with binding energies −7.25, −7.14 and −7.89 kcal mol⁻¹, respectively.
... This mountainous area is among the richest and most important areas in Türkiye in terms of plant diversity (Eren et al., 2004;Parolly, 2015;Noroozi et al., 2019) and falls within the putative refuge areas in Mediterranean Basin identified by Médail and Diadema (2009). The genus Knautia is represented by 12 species in Türkiye, including the new species described here, (Matthews, 1972;Davis et al., 1988;Göktürk, 2012;Tunçkol et al., 2021;Yıldırım et al., 2022) and is traditionally divided into three sections, which are sect. Knautia, sect. ...
... & Schult.) DC., and K. arvensis, all of which have a notable presence in Türkiye (Göktürk, 2012, Tunçkol et al., 2021. Contrary to the assertions of Göktürk (2012) and Yıldırım et al. (2022), only the recently described K. goecmenii stands out as an endemic species in Türkiye. ...
Bu çalışma Küre Dağları Milli Parkı’nın Kastamonu Bölümündeki florayı ortaya çıkararak alandaki bitki çeşitliliğinin tespit edilmesi amacıyla yapılmıştır. Araştırma kapsamında tespit edilen bitkiler APG IV sistemine göre sınıflandırılmış, endemik türlerin uluslararası IUCN tehlike kategorilerine de yer verilmiştir. 2019-2021 yılları arasında yapılan 55 arazi çalışmasında 2240 bitki örneği toplanmıştır. Toplanan örneklerin teşhis edilmesiyle 100 familya, 474 cinse ait 990 taksonun alanda yayılış yaptığı belirlenmiştir. Bu taksonların 49’u endemik olup, çalışma alanında tespit edilen biri dünya için yeni endemik takson, diğeri Türkiye florası için yeni bir kayıt olmak üzere iki taksonun sistematiği yapılarak ülkemiz florasına katılması sağlanmıştır. Araştırma alanında en fazla takson içeren familyalar, Asteraceae 113, Fabaceae 83, Lamiaceae 52, Apiaceae 52, ve Poaceae 51 dir. Araştırma alanından toplanan taksonların Raunkiaer’in yaşam biçimlerine göre Fanerofit 96, Kamafit 29, Hemikriptofit 517, Kriptofit 117, Terofit 231’dir.
