منابع مشابه
Two new desert Eschscholzia (Papaveraceae) from southwestern North America
Two new species of Eschscholzia are described. Both are found in the deserts of California and one extends outside the state boundary into Arizona. Eschscholzia androuxii Still, sp. nov. is found mainly in and around Joshua Tree National Park in Riverside and San Bernardino counties. Eschscholzia papastillii Still, sp. nov. is found from the northern Mojave south through Joshua Tree National Pa...
متن کاملریخت شناسی دانه گرده در جنسL. Fumaria (Papaveraceae) در ایران
ریخت شناسی دانه گرده و ساختار اگزین 7 گونه از شاتره با استفاده از میکروسکوپ نوری و الکترونی (نگاره) مورد بررسی قرار گرفت. دانه های گرده 7 گونه مورد بررسی از نوع porate و دارای بیرون زدگی هایی در محل annul بود. این دانه ها واجد 6 تا 12 منفذ و با اشکالی متفاوت از oblate spheroid و prolate spheroid تا euprolate بودند. نتایج این بررسی موید آنست که صفات گرده شناسی گونه‌های Fumaria صفات افتراقی من...
متن کاملGenes encoding norcoclaurine synthase occur as tandem fusions in the Papaveraceae
Norcoclaurine synthase (NCS) catalyzes the enantioselective Pictet-Spengler condensation of dopamine and 4-hydroxyphenylacetaldehyde as the first step in benzylisoquinoline alkaloid (BIA) biosynthesis. NCS orthologs in available transcriptome databases were screened for variants that might improve the low yield of BIAs in engineered microorganisms. Databases for 21 BIA-producing species from fo...
متن کاملUptake of Alkaloids by Latex Vesicles and Isolated Mesophyll Vacuoles of Chelidonium ntajus (Papaveraceae)
Latex vacuoles o f Chelidonium majus (Papaveraceae) naturally sequester protoberberine and benzophenanthridine alkaloids. Isolated vesicles take up a number o f other heterologous alkaloids, such as 9,10-dihydroergocryptine, vinblastine, strychnine, nicotine, colchicine, lupanine, and 13-hydroxylupanine, with a strong preference for the indole alkaloids and for nicotine. Kinetic data clearly sh...
متن کاملPhylogenetic Analysis of Meconopsis (papaveraceae) and Evaluation of Two Controversial Taxonomic Species
Meconopsis is a genus native to the high elevation habitats that range from the western Himalaya eastward to the Hengduan Mountains (China). The genus has been the subject of several taxonomic treatments and monographs by generations of botanists, which has led to a long and confusing taxonomic history with inconsistent species concepts and conflicting interpretations of relationships among nam...
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ژورنال
عنوان ژورنال: Review of Palaeobotany and Palynology
سال: 1979
ISSN: 0034-6667
DOI: 10.1016/0034-6667(79)90034-4