IntroductionOriganum dubium Boiss. is an economically important wild oregano species in Turkey. The most important characteristic of this oregano is its high essential oil content (6%-8%). This herb is intensely harvested from wild uplands near the towns of Alanya and Gazipaşa in Antalya Province and is used to produce essential oil. Thus, natural populations have been decreasing annually. Various genotypes and chemotypes have been reported within wild populations, such as high carvacrol and high linalool types (Turgut et al., 2013). Therefore, cultivating O. dubium seems to be the most convenient way to conserve wild populations and produce stable quantities of drugs. O. dubium grows wild in Turkey, Greece, and Cyprus. O. dubium is composed of carvacrol, linalool, and linaloolcarvacrol chemotypes, as well as the thymol chemotype. The thymol, linalool, and carvacrol chemotypes have been reported in Turkish O. dubium populations, whereas those in Cyprus are only the carvacrol chemotype (Figuérédo et al., 2006). Lukas et al. (2013) reported taxonomic uncertainties concerning the section Majorana. They assessed the taxonomic status of O. onites, O. syriacum, O. dubium, and O. majorana and discussed the evolutionary relationships in the section Majorana after considering molecular, morphological, and phytochemical data. According to their results, the 'cymyl' chemotype of O. majorana L. is classified as O. dubium. The leaves and flowers of this species are used to treat gastrointestinal problems and as a diuretic, and the essential oil is used as an antirheumatic (Arnold et al., 1993). In addition, the essential oil of O. dubium has been evaluated as a pharmaceutical and industrial product (Baser et al., 1993;Vera and Chane-Ming, 1999) due to its antimicrobial and potential antioxidant activity (Karioti et al., 2006). The biological activities of O. dubium Boiss. essential oil, such as anticarcinogenic (Koparal and Zeytinoglu, 2003), antioxidant (Mezzoug et al., 2007), fungicidal (Ahmad et al., 2011;Dambolena et al., 2011), insecticidal (Tang et al., 2011), and antimicrobial properties (Nostro and Papalia, 2012 are associated with carvacrol content.
Valerian (Valeriana dioscoridis Sm.) is a perennial herb of the Caprifoliaceae family. The genus Valeriana L. is represented by 14 species (15 taxa) in Turkey. This plant contains flavone glycosides, iridoids and lignans. Among these components, the medically important active ingredient is valerianic acid. Essential oils from valerian roots and rhizomes are used for the treatment of various diseases, including insomnia, mental illness, anxiety, menstrual cramps and physical stress conditions. In this study, evaluations were made of the root and rhizome of valerian plants grown in a natural environment and in greenhouse condition. The macro and micro nutrient contents of the powdered plant samples, and the antioxidant and antimicrobial activity values of the extracts were reported. Except for some macro and micro elements, it was determined that antioxidant and antimicrobial activities of plants cultivated and grown in nature were not different. The major components of both the natural and cultivated forms were determined to be 9- Borabicyclo [3.3.1] nonane, propyl]-(17.55% and 22.65%, respectively). The heavy metales such as Fe (415.21±47.8 mg/kg), Cu (50.9±0.2 mg/kg) and Mn (274.6±9.5 mg/kg), were obtained above limit values in grown plants of natural environment conditions.
Bu çalışmada, Toros Göknarı bitkisinden elde edilen reçinenin antioksidan ve sitotoksik aktivite değerleri değerlendirilmiştir. Bu reçine, 2,2′-Azino-bis-(3-etilbenzotiazolin-6-sülfonik asit) (ABTS) radikal süpürme testine göre antioksidan aktiviteye sahiptir.Reçinenin in vitro sitotoksik aktivitesi, bir dizi insan kanser hücresine (MDA-MB-231, Hep G2, PC-3, U-87, MCF-7, HT-29) karşı MTT (3-(4,5-dimetiltiyazol-2-il) -2,5-difeniltetrazolium bromid) analizi ile 48 saat boyunca araştırıldı. Sağlıklı hücreler olarak normal insan akciğer fibroblast hücreleri (WI-38) kullanıldı. Sonuçlar, reçinenin in vitro sitotoksik aktivitesinin hücre hattı tipine ve numunenin konsantrasyonuna bağlı olduğunu göstermiştir. IC50 değerlerine göre, reçine diğer kanser hücrelerine kıyasla endometriyal adenokarsinom kanser hücreleri üzerinde en fazla sitotoksik aktiviteye sahiptir (IC50 = 8.94 ± 0.03 µg mL -1 ). Sonuçlar ayrıca seçicilik indeks (SI) değeri> 2 olan Ishikawa endometriyal adenokarsinom hücrelerinin reçineye karşı en yüksek hassasiyete sahip olduğunu göstermiştir. Bu çalışma, reçinenin farklı kanser hücrelerinin büyümesini engellediğine dair ilk kanıtları sunmaktadır.
Selection, propagation and conservation of important genotypes are important in medicinal-industrial plants. Nowadays, using tissue culture and regeneration techniques of medicinal plants under in vitro conditions has been able to proliferate medicinal plants widely, which is much higher than traditional methods of vegetative propagation. Maca (Lepidium meyenii), is an industrial plant whose root is the usable part. Maca has valuable medicinal effects such as sexual enhancement and reproductive power, infertility treatment, improved sperm count and quality, anti-stress, osteoporosis prevention and more.This study was conducted to induce callus and regeneration of Maca. First, MS medium supplemented with different concentrations of Kinetin, NAA and 2,4-D (0.5, 1 and 2 μM respectively) and control were compared for callus induction from root and leaves. After 38 days of incubation, the rst callus appeared, after 50 days of callus induction and after 79 days regeneration occurred. The callus induction experiment was performed for the study of the effect of three explants (leaf, stem and root) and seven hormone levels. The regeneration experiment was carried out by studying the effect of three explants (leaf, stem and root) on eight levels of the hormone. The results of data analysis on callus induction showed that the effects of explants, hormones and their interactions on callus induction percentage were highly signi cant but not signi cant on callus growth rate. The results of regression analysis showed that explants, hormones and their interactions had no signi cant effect on regeneration percentage.
In the present work, the effect of different salt concentrations on growth and quality of rosemary (Rosmarinus officinalis L.) was investigated using ground-based remote sensing techniques under greenhouse conditions in 2018. The experiment was carried out in a randomized complete block design with three replications and lasted 8 weeks in total. Spectroradiometer measurements were performed on the leaves of rosemary plants to monitor changes in spectral signatures due to salt stress. Spectrophotometer and chlorophyll meter measurements were also taken from the leaves of the plants to investigate the reactions to salt stress at the end of 4 th and 8 th weeks simultaneously with all other measurements. According to the obtained data, there was a significant difference in the chlorophyll, brightness and colour values of the leaves in response to salt stress, and a difference was observed in the reflective values of the plants in the spectral measurements taken at 4 th and 8 th weeks. The region with the biggest difference between reflectance values was near-infrared among different salt concentrations applied plants. In the 4 th week, the most vivid color (intense green) was obtained in the S3 and S4 applications, (19.80 and 19.40, respectively). However, as the stress application time and the applied salt rate increased, small changes in plant color occurred. Besides, it was concluded that salt treatment increased the NDVI (Normalized Difference Vegetation Index) values of the plants.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.