نتایج جستجو برای: مورخوش zhumeria majdae rech f
تعداد نتایج: 305825 فیلتر نتایج به سال:
The cytotoxic chloroform fraction of Euphorbia aellenii afforded two cycloartane type triterpenes — cycloart-25-en-3,24-diol (1) and 24-methylene-cycloartan-3-ol (2) — for the first time from this plant. Preparation of cycloartane derivatives, 3, 24-O-diacetyl-cycloart-25-en as compound 3 and 3-O-acetyl-24-methylene-cycloartan (4) were conducted by acetylating of 1 and 2, respectively. The ...
The hydrodistilled essential oil from flowers of Hymenocrater platystegius Rech. f., which isendemic to Iran, was analyzed by GC and GC/MS. Twelve compounds representing 80.4%of the flowers oil of H. platystegius were identified. This oil was particularly rich in α-pinene(25.8%) and limonene (20.9%); another major component of the oil was β-pinene (12.2%).
Bacillus subtilis recombination-deficient mutants were constructed by inserting a selectable marker (cat gene) into the yppB and ypbC coding regions. The yppB:cat and ypbC:cat null alleles rendered cells sensitive to DNA-damaging agents, impaired plasmid transformation (25- and 100-fold), and moderately affected chromosomal transformation when present in an otherwise Rec+ B. subtilis strain. Th...
گونه saxifraga ramsarica به عنوان گونه جدید نامگذاری و شرح داده می شود. گونه های s. afghanica aitch. & hemsl. var. racemiflora parsa مترادف با گونه s. iranica bornm. و s. mazanderanica rech. f. مترادف با s. exarata subsp. moschata (wulf.) cavillier در نظر گرفته می شوند
گونه Saxifraga ramsarica به عنوان گونه جدید نامگذاری و شرح داده می‌شود. گونه‌های S. afghanica Aitch. & Hemsl. var. racemiflora Parsa مترادف با گونه S. iranica Bornm. و S. mazanderanica Rech. f. مترادف با S. exarata subsp. moschata (Wulf.) Cavillier در نظر گرفته می‌شوند
the cytotoxic chloroform fraction of euphorbia aellenii afforded two cycloartane type triterpenes — cycloart-25-en-3,24-diol (1) and 24-methylene-cycloartan-3-ol (2) — for the first time from this plant. preparation of cycloartane derivatives, 3, 24-o-diacetyl-cycloart-25-en as compound 3 and 3-o-acetyl-24-methylene-cycloartan (4) were conducted by acetylating of 1 and 2, respectively. the ...
تحقیق حاضر عدد کروموزومی دو گونه Tanacetum به نام‌های T. stapfianum (Rech. f.) podlech (2 جمعیت) و T. lingulatum (Boiss.) Bornm. (یک جمعیت) را برای اولین بار گزارش می‌کند. این گونه‌ها متعلق به خانواده Asteraceae و جزء گیاهان انحصاری ایران می‌باشند. پارامتر‌های کروموزومی آنها بررسی شد. هر دو گونه دیپلوئید و دارای فرمول کاریوتایپی 18x=2n =2 بودند. ایدیوگرام آنها نیز رسم گردید.
Muteh wildlife refuge, with an area of about 220,000 ha, is situated at 95 km north of Isfahan. In this refuge, 511 species of vascular plants belonging to 284 genera and 59 families live along with 117 species of vertebrate animals belonging to 84 genera and 37 families. Rare plants of the area were classified into two categories of “endangered” and “vulnerable” according to IUCN, 1996 categor...
Muteh wildlife refuge, with an area of about 220,000 ha, is situated at 95 km north of Isfahan. In this refuge, 511 species of vascular plants belonging to 284 genera and 59 families live along with 117 species of vertebrate animals belonging to 84 genera and 37 families. Rare plants of the area were classified into two categories of “endangered” and “vulnerable” according to IUCN, 1996 categor...
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