نتایج جستجو برای: echinops persicus
تعداد نتایج: 1949 فیلتر نتایج به سال:
چکیده جنس Echinops ازجمله تاکسونهای بزرگ تیرۀ Asteraceae در ایران است که تقریباً در تمام نقاط کشور پراکنش دارد. بیشتر گونههای این جنس انحصاری ایراناند و صرفاً در محدودهای کوچک حضور دارند. این جنس با داشتن کلاپرکهای تکگلی آرایشیافته در گلآذینهای ثانویه که ظاهری کروی دارند بهخوبی از سایر جنسهای تیرۀ مرکبان (Asteraceae) تشخیص داده میشود؛ باوجود مطالعههای ...
Intraspecific and interspecific nucleotide sequence variations of the mtDNA control region (D-loop) were studied with mtDNAs isolated from tissue specimens of more than 1400 sturgeons of nine species: Russian sturgeon Acipenser gueldenstaedtii , Persian sturgeon A. persicus , Siberian sturgeon A. baerii , Amur sturgeon A. schrenkii , Fringebarbel sturgeon A. nudiventris , sterlet A. ruthenus , ...
BACKGROUND Zoonotic Cutaneous Leishmaniasis (ZCL) is endemic in many parts of Iran. Recently its incidence is considerable in different parts of Jahrom district, in Fars Province, southern Iran. The aims of our study were to investigate the prevalence of leishmania infection, and identify and characterize the Leishmania species present, among the rodents by molecular methods in a new endemic fo...
BACKGROUND & OBJECTIVES Rodents belonging to Gerbillinae subfamily are the main reservoir hosts of zoonotic cutaneous leishmaniasis (ZCL) in Iran. Regarding the important role of these rodents in the maintenance of Leishmania major in the nature, their identification with morphometric, cytogenetic and molecular methods seems to be essential. The karyotype study of these species, captured from a...
Echinopines A (1) and B (2), novel sesquiterpenoids with an unprecedented rearranged skeleton named echinopane, were isolated from the roots of Echinops spinosus. The structures were elucidated by extensive spectroscopic analysis. The relative configuration of 1 was assigned by a combination of NOESY correlations and a simulation analysis. A plausible biosynthetic pathway for echinopane was dis...
background and aims: plants as medicines have always played a vital role in human life. tumor necrosis factor alpha (tnf)-α is one of the macrophage-derived inflammatory cytokine with pleotropic effects in the inflammation process. some studies have been demonstrated that some of the echinops species have anti-inflammatory activity. in fact, echinops lasilepis is introduced as one of the native...
Spatio-temporal distribution of epifauna collected with a sledge was studied on the Cilician shelf of the Mediterranean Sea. There were two different communities: the shallow community was restricted to water at 5 and 10 m deep with sandy bottom inhabited abundantly by Conomurex persicus, Arnoglossus laterna and Murex trunculus. Conomurex persicus, an introduced tropical species predominated th...
Foxtail lily (Eremurus), as a medicinal-ornamental geophyte, has recently emerged in the cut flower market novel, commercially significant specialty (SCF). However, there is limited information about sensitivity to ethylene of foxtail species for managing ethylene-mediated senescence prolong vase life and maintain ornamental quality this flower. The purpose current study was compare production ...
The need to vary body temperature to optimize physiological processes can lead to thermoregulatory behaviours, particularly in ectotherms. Despite some evidence of within-population phenotypic variation in thermal behaviour, the occurrence of alternative tactics of this behaviour is rarely explicitly considered when studying natural populations. The main objective of this study was to determine...
A natural alkynol group-substituted thiophene, 2-(penta-1,3-diynyl)-5-(3,4-dihydroxybut-1-ynyl)-thiophene (PDDYT), was isolated from the roots of Echinops grijsii Hance. It possessed potent NAD(P)H: quinone oxidoreductase1 (NQO1) inducing activity and could activate Keap1-Nrf2 pathway effectively in murine hepatoma Hepa 1c1c7 cells. Further investigations indicated that the activation of Keap1-...
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