نتایج جستجو برای: wedelia chinensis
تعداد نتایج: 4139 فیلتر نتایج به سال:
اعداد کروموزومی چهار واحد از جنس cuscuta l. از منطقه اصفهان (ایران) جمع آوری گردیده است. اختلافات مورفولوژیکی و سیتولوژیکی دو گونه مجاور c. campestris yunck و c. chinensis lam. بحث شده و اعداد کروموزومی c. chinensis (2n=28) و نژاد تتراپلوئیدی c. planiflora ten. var. sicula (ten. ex engelm.) trab. برای اولین بار گزارش گردیده است. اختلاف این واریته با واریته اصلی گونه بحث شده است. شمارش کروموزوم...
The goal of the present study was to compare the different survival of Oxya chinensis exposed to chromium(VI) among allozyme genotypes to gain a better understanding of the relationship between the genetic variations and environmental disturbance. This study analyzed the occurrence of genotypes in O. chinensis population exposed to Cr(VI). O. chinensis samples were collected at Yuanping, Shanxi...
To search the evidence of molecular evolution mechanism for aquatic and cave habitat in Andrias davidianus, the evolution analysis was carried out among several species transcriptome data. The transcriptome data of Notophthalmus viridescens, Xenopus tropicalis, Cynops pyrrhogaster, Hynobius chinensis and A. davidianus were obtained from the Genbank and reassembled except Xenopus tropicalis. The...
Three new pavine N-oxide alkaloids, (-)-isocaryachine-N-oxide B, (+)-caryachine-N-oxide, (-)-caryachine-N-oxide, and a new isoquinoline alkaloid, 6,7-methylenedioxy-N-methylisoquinoline together with 11 known alkaloids were isolated and characterized from the stem bark of Cryptocarya chinensis. The structures of the isolated compounds were determined by spectral methods. The stereochemistry of ...
background: analysis of many proteins produced during the transition into the stationary phase and under stress conditions (including starvation stress) demonstrated that a number of novel proteins were induced in common to each stress and could be the reason for cross-protection in bacterial cells. it is necessary to investigate the synthesis of these proteins during different stress condition...
Effects of mowing and grazing on a Leymus chinensis grassland in the Songnen plain of northeastern China were studied using eight replicates of four grazing and mowing treatments. Canopy cover and biomass of the dominant species (L. chinensis) were lower, and cover of the halophyte Suaeda corniculata higher, on grazed than ungrazed; ungrazed plots showed a response to mowing, but not grazing; s...
توجه به تنشهای نازیوا در گونههای گیاهی بهدلیل حضور گسترده این تنشها در زمینهای کشاورزی و احتمال افزایش شدت آنها بهدلیل تغییر اقلیم، ضروری میباشد. برای بررسی اثرهای تنش شوری بر برخی ویژگیهای ریختشناسی و فیزیولوژیکی رقمهای ورد (رز) مینیاتوری (Rosa chinensis Jacq. var. minima Rehd.) آزمایشی بهصورت فاکتوریل در قالب طرح پایه بهطورکامل تصادفی در گلخانه انجام شد. تیمارها بهصور...
The antioxidant activity and phytoconstituents of the hydromethanolic extract of Litchi chinensis (HELC) fruit was explored in the present study. The antioxidant potential of extract has been evaluated using several antioxidant models and results were compared to standards. Fruit extract showed effective reducing power and free radical scavenging activity in a dose-dependent manner. In case o...
Cis chinensis Lawrence (Coleoptera: Ciidae) is recorded for the first time from Brazil. The species has been previously recognized as pest of commercial dried fungi in China, Thailand and USA. The status of the species is discussed, and the Cis multidentatus species-group is delimited to encompass C. chinensis and the morphologically similar species C. aldabranus Scott, C. mikagensis Nobuchi & ...
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