Browsing by Author "Gürel, Ekrem"
Now showing items 1-20 of 84
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Abiotic stress of ZnO-PEG, ZnO-PVP, CuO-PEG and CuO-PVP nanoparticles enhance growth, sweetener compounds and antioxidant activities in shoots of Stevia rebaudiana Bertoni
Javed, Rabia; Zia, Muhammad; Yücesan, Buhara; Gürel, Ekrem (Institution of Engineering and Technology, 2017)Nanoparticles are known to play remarkable role as abiotic stress elicitors in plants. This study reports the comparative analysis of effects produced by capped [zinc oxide (ZnO)-polyethylene glycol (PEG), ZnO-polyvinyl ... -
Adventitious shoot regeneration from stem internode explants of Verbena Officinalis L., a medicinal plant
Türker, Arzu Uçar; Yücesan, Buhara; Gürel, Ekrem (2010)Verbena officinalis L. (vervain) is a medicinal plant that shows several biological activities, including antimicrobial, antiinflammatory, analgesic, neuroprotective, hypnotic/sedative, gastroprotective, hepatoprotective, ... -
Alkaloid production from cell suspension cultures obtained from osmotic-stressed callus lines of Catharanthus roseus
Akçam-Oluk, Esin; Demiray, Hatice; Gürel, Ekrem (2003)Catharanthus roseus callus cultures established were first exposed to osmotic stress using polyethylene glycol (9.0%, w/v)(MW 3350) in solid MS medium supplemented with 20 g/l sucrose, 2 mg/l ?-naphtalene acetic acid (NAA) ... -
Applications of carbon nanomaterials in the plant system: A perspective view on the pros and cons
Verma, Sandeep Kumar; Das, Ashok Kumar; Gantait, Saikat; Kumar, Vinay; Gürel, Ekrem (Elsevier, 2019)With the remarkable development in the field of nanotechnology, carbon-based nanomaterials (CNMs) have been widely used for numerous applications in different areas of the plant system. The current understanding about the ... -
Bioremediation applications with fungi
Sağlam, Necdet; Yeşilada, Özfer; Sağlam, Semran; Apohan, Elif; Sam, Mesut; İlk, Sedef; Emul, Ezgi; Gürel, Ekrem (Springer International Publishing Ag, 2018)Industrial wastewaters such as olive oil mill wastewater (OOMW) and alcohol factory wastewater (vinasse) with high polluting characteristics affect the ecosystem seriously. The environmental impact of these wastewaters is ... -
Biotechnology applications for sugar beet
Gürel, Ekrem; Gürel, Songül; Lemaux, Peggy G. (Taylor & Francis Inc., 2008)Sugar beet (Beta vulgaris L.) is an important industrial crop, being one of only two plant sources from which sucrose (i.e., sugar) can be economically produced. Despite its relatively short period of cultivation (ca. 200 ... -
Calcium and magnesium elimination enhances accumulation of cardenolides in callus cultures of endemic Digitalis species of Turkey
Şahin, Günce; Verma, Sandeep Kumar; Gürel, Ekrem (Elsevier France-Editions Scientifiques Medicales Elsevier, 2013)Elimination of calcium (Ca), magnesium (Mg) or both from the medium of callus cultures of Digitalis davisiana Heywood, Digitalis lamarckii Ivanina, Digitalis trojana Ivanina and Digitalis cariensis Boiss. ex Jaub. et Spach ... -
Callus and root development from leaf explants of sugar beet (Beta vulgaris L.): Variability at variety, plant and organ level
Gürel, Ekrem (1997)In this study , the nature of variability observed in previous experiments, when leaf explants of sugar beet (Beta vulgaris L.) were cultured in vitro, was investigated at different levels of classification (i.e., variety, ... -
Cardenolide estimation in callus-mediated regenerants of Digitalis lamarckii Ivanina (dwarf foxglove)
Yücesan, Buhara; Müller-Uri, Frieder; Kreis, Wolfgang; Gürel, Ekrem (Springer, 2014)Digitalis cardenolides can regulate heart rhythms and are effective agents in cancer chemotherapy, in particular, for treating prostate and breast cancer. In this study, an optimized and efficient plant tissue culture ... -
Cardiotonic glycoside determination in in vitro and ex vitro samples of Digitalis lamarckii Ivan, an endemic species to Anatolia
Yücesan, Buhara; Gürel, Ekrem (Georg Thieme Verlag Kg, 2010)Digitalis lamarckii Ivan is an endemic species to Turkey. Digitalis species are medicinally and economically important as they contain cardiac glycosides that strengthen diffusion and regulate the heart rhythm [1]. Moreover, ... -
Clonal propagation and synthetic seed production from nodal segments of Cape Gooseberry (Physalis Peruviana L.), a tropical fruit plant
Physalis peruviana L. contains polyphenols and carotenoids with antiinflammatory and antioxidant activities used against diabetes. To establish an efficient regeneration system using nodal segments excised from 4-week-old ... -
Common mullein (Verbascum thapsus L.): recent advances in research
Türker, Arzu Uçar; Gürel, Ekrem (Wiley, 2005)Common mullein (Verbascum thapsus L.) is a medicinal plant readily found in roadsides, meadows and pasture lands and has been used to treat pulmonary problems, inflammatory diseases, asthma, spasmodic coughs, diarrhoea and ... -
CRISPR/Cas9-mediated immunity in plants against pathogens
Sameeullah, Muhammad; Khan, Faheem Ahmed; Özer, Göksel; Aslam, Noreen; Gürel, Ekrem; Karadeniz, Turan (Caister Academic Press, 2017)Global crop production is highly threatened due to pathogen invasion. The huge quantity of pesticides application, although harmful to the environment and human health, is carried out to prevent the crop losses worldwide, ... -
CuO nanoparticles significantly influence in vitro culture, steviol glycosides, and antioxidant activities of Stevia rebaudiana Bertoni
Javed, Rabia; Mohamed, Aliyu; Yücesan, Bahtiyar; Gürel, Ekrem; Kausar, Rukhsana; Zia, Mohammad (Springer Netherlands, 2017)Copper oxide (CuO) nanoparticles (NPs) synthesized through co-precipitation method were employed in MS media during in vitro culture of Stevia rebaudiana. Physiological characteristics, production of steviol glycosides, ... -
Development of an efficient plant regeneration system in sunflower (Helianthus Annuus L.)
Gürel, Ekrem; Kazan, Kemal (1998)With the aim of developing an efficient plant regeneration system from cells or tissues of sunflower (Helianthus annuus L.)', we compared several regeneration protocols using different explant types and hormonal combinations. ... -
Differential effects of plant growth regulators on physiology, steviol glycosides content, and antioxidant capacity in micropropagated tissues of Stevia rebaudiana
Rabia Javed; Yücesan, Bahtiyar Buhara; Zia M.; Gürel, Ekrem (De Gruyter Open Ltd, 2017)Plants naturally produce secondary metabolites on exposure to abiotic/biotic stress. Production of secondary metabolites, like phenols or flavonoids, is a defence mechanism against different stresses. This study explores ... -
Direct shoot regeneration from leaf explants of Digitalis Lamarckii, an endemic medicinal species
This study reports, for the first time, an efficient in vitro plant regeneration protocol for Digitalis lamarckii Ivan. (dwarf foxglove) via direct shoot organogenesis. Two sets of experiments were carried out; the first ... -
Direct somatic embryogenesis from hypocotyl segments of Digitalis trojana Ivan and subsequent plant regeneration
Verma, Sandeep Kumar; Şahin, Günce; Yücesan, Buhara; Eker, İsmail; Şahbaz, Nevin; Gürel, Songül; Gürel, Ekrem (Elsevier, 2012)This study describes, for the first time, an in vitro protocol for the direct development of somatic embryos and subsequent plant regeneration from hypocotyl segments excised from 21-days-old in vitro-germinated seedlings ... -
Doubled haploid plant production from unpollinated ovules of sugar beet (Beta vulgaris L.)
Gürel, Songül; Gürel, Ekrem; Kaya, Zeki (Springer-Verlag, 2000)The effects of cold pretreatment, AgNO3 and activated charcoal on haploid plant production from unpollinated sugar beet ovules were investigated. Both cold pretreatment and the addition of charcoal increased the frequency ... -
Doubled haploid sugar beet: an integrated view of factors influencing the processes of gynogenesis and chromosome doubling
Aflaki, Fatemeh; Pazuki, Arman; Gürel, Songül; Stevanato, Piergiorgio; Biancardi, Enrico; Gürel, Ekrem (Int Sugar Journal Ltd, 2017)Haploid and doubled haploid plant production through unpollinated ovule culture, with diverse benefits and applications, is considered among the effective and advantageous breeding methods for sugar beet (Beta vulgaris L). ...
