منابع مشابه
Chromosome studies in the genus Jatropha L
The inflorescences of ten species of the genus Jatropha were fixed in Cornoy’s fluid (6:3:1). Acetocarmine stain (2%) was used for staining the pollen mother cells. Seven species exhibited 11 bivalents and 2n =22 and x=11. But the two other species, J.villosa var. villosa and J.villosa var. ramnadensis showed only 10 bivalents and 2n number of 20 chromosomes and x=10. The study concluded the oc...
متن کاملMorphological, anatomical and palynological studies of the genus Zoegea L. (Asteraceae) in Iran
The genus Zoegea L. belongs to Asteraceae family and has about 10 species in the world. This genus is considered to be an Irano-Turanian and Mediterranean element and is distributed in south-western and central Asia and in the central, southern, north-western and south-western parts of Iran as well. The subspecies classification of the genus is not consensus and various classifications could be...
متن کاملFaunistic Studies on the Genus Culiseta (Diptera:Culicidae) in Guilan Province
To study mosquito ( Diptera : Culicidae) fauna in Guilan province (Caspian sea littoral , North of Iran ), an investigation was carried out during April to December 2000. The whole set of 2478 adult specimens from 64 habitats and 6656 larvae from 127 larval breeding places was collected . Three species of the genus Culiseta were identified as follow: 1- Cs. longiareolata 2- Cs. morsitans 3- Cs....
متن کاملDetection of the polyphenolic components in Ribes nigrum L.
BACKGROUND The blackcurrant (Ribes nigrum L.) is a species of native currant which contains a lot of polyphenolic antioxidants which is used medicinally and has a fundamental role in the maintenance health. MATERIALS, METHODS AND OBJECTIVE: Ultraviolet-visible spectrophotometry and ultraviolet range high performance liquid chromatography (HPLC) were used to characterize the polyphenolic content...
متن کامل/?-Carboline Alkaloids from Ribes nigrum L
From Ribes nigrum L. two ß-carboline alkaloids (deshydroxymethyl flazin (1) and flazin methyl ether (2)) could be isolated in minute amounts. The structure elucidation is described. The two compounds are present in the freshly pressed juice, but they are also formed during storage of the juice by condensation of tryptophane with ascorbic acid or its degradation products. This could be shown by ...
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ژورنال
عنوان ژورنال: Hereditas
سال: 2010
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1928.tb02491.x