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Dermatologically active sesquiterpene lactones in trichomes ofParthenium hysterophorus L. (Compositae)
Scanning electron microscopy of the leaf surface, phyllaries and achene-complex ofParthenium hysterophorus L. showed the presence of 4 types of glandular and non-glandular trichomes. Chemical analysis established...
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Introduction
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Ultrastructural, Micromorphological and Phytochemical Evidence for a “Central Position” of Macarthuria (Molluginaceae) within the Caryophyllales
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In vitro regeneration of Gaillardia pulchella Foug.
Young leaf and internodal stem segments of Gaillardia pulchella, collected from wild species re-established in the greenhouse, were used to initiate callus on Murashige & Skoog medium supplemented with NAA (2.0 m...
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Introduction
The half-day symposium on “Multidisciplinary approaches to the systematics of Compositae”, held as part of the XIV International Botanical Congress in Berlin, on July 26, 1987, was designed to complement the Univ...
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Phylogenetic and evolutionary implications of nuclear ribosomal DNA variation in dwarf dandelions (Krigia, Lactuceae, Asteraceae)
Restriction site and length variations of nrDNA were examined for 51 populations of seven species ofKrigia. The nrDNA repeat ranged in size from 8.7 to 9.6 kilobase (kb). The transcribed region, including the two...
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Tissue culture of endod (Phytolacca dodecandra L'Herit): growth and production of ribosome-inactivating proteins
Leaves and stems from endod (Phytolacca dodecandra L'Herit), known to produce the 29 kDa ribosome-inactivating protein (RIP) dodecandrin, were initiated into tissue culture. Callus and suspension cultures were...
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Cephalocereus senilis (Old-Man-Cactus): In Vitro Culture and the Elicitation of Flavonoids
The abundance of cacti in arid lands is, at least in part, due to several biochemical and anatomical adaptations that cacti have for minimizing water loss. To what degree members of the Cactaceae have evolved ...