نتایج جستجو برای: centaurea solstitialis
تعداد نتایج: 1446 فیلتر نتایج به سال:
Background & Objectives :Nowadays, development of drug resistance against chemical antimicrobial drugs has attracted attention using medicinal plants in treatment of infections. The aim of this study is to evaluate the antimicrobial effects of two species of Centaurea plant’s essential oil on drug resistant clinical isolates of three pathogenic isolates. Materials & Methods :T...
Restoring habitats degraded by intensive agriculture is challenging, and the resulting communities often have lower quality host fewer species than reference ecosystems. To improve restoration outputs, we need to understand what limits both establishment performance of target in restored populations. In this study, focused on grassland with regional seeds compared two herbs, Betonica officinali...
گونه Centaurea khuzistanica به عنوان گونه جدید نامگذاری و شرح داده میشود. گونههای زیر برای اولین بار از ایران گزارش میگردند. Centaurea dimirezii, Ehretia obtusifolia, Nigella nigellastrum, Serratula erucifolia وجود گونههای Peucedanum officinale, Saccharum spontaneum که در برخی فلورها از ایران گزارش شده بودند، تائید میگردد.
The aerial parts of Centaurea deusta Ten. afforded in addition to several known compounds, mainly sesquiterpene lactones, one new eudesmanolide and one new elemane derivative. Structures of the new compounds were elucidated by spectroscopic methods. The in vitro antifungal and antibacterial activities of the isolated compounds was tested, using the microdilution method. All compounds tested sho...
A number of studies have suggested a link between hybridization and invasion. In this study, we experimentally test the potential for hybridization to influence invasion through a greenhouse common garden study. Diffuse knapweed (DK) (Centaurea diffusa Lam.) was introduced to North America with admixture from spotted knapweed (SK) (Centaurea stoebe subsp. stoebe L.). Comparisons between North A...
گیاه گل گندم متعلق به تیره ی کاسنی بوده که در برگیرنده حدودا 500 گونه بوده و گیاهان متعلق به آن عمدتاً در نواحی معتدله نیمکره شمالی، کشور های اروپایی و آسیایی پراکندگی دارند. در گذشته از این گیاه به عنوان مسهل، پاک کننده و خشک کننده استفاده می کردند. عصاره این گیاه برای تسهیل خروج صفرا و باز شدن انسداد کبد و طحال بسیار نافع است. در این پژوهش، اندام هوایی گیاه centaurea cyanus مورد مطالعه ی فیتوش...
The content of biologically active substances and antioxidant activity in leaves inflorescences three species from the tribe Cynareae Asteraceae family: Centaurea cyanus,Centaurea macrocephala, Rhaponticum carthamoides, grown under conditions Central Siberian Botanical Garden introduction was studied. It determined that contain flavonols, catechins, tannins, carotenoids, pectin substances. high...
New naturally occurring nitrogenous compounds 1 and 2, along with a new dimeric lignan glucoside 3, have been isolated from the ethyl acetate soluble fraction of Centaurea iberica. Their structures have been elucidated through spectroscopic techniques. All the isolated compounds showed significant platelet aggregation inhibition.
The extract containing sesquiterpene lactones of Centaurea iberica (Asteraceae) isolated was separated and a steroidal compound, which is stigmast-1,5-dien-3beta-ol, was purified. The chemical structure was established based on spectroscopic data (UV, IR, MS, 1H NMR, 13C NMR). Both the extract and the compound showed significant antioxidant and antimicrobial activities.
Urophora merzisp. n. reared from flower heads of Centaurea behen Linnaeus is described from Iran. It is similar to Urophora campestris, Urophora sachalinensis, Urophora stylata, Urophora tsoii and Urophora vera in wing pattern with 3 well developed crossbands and indistinct subbasal crossband, differing in aculeus tip with two pairs of diminished preapical steps and different host plants.
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید