Results 111 to 120 of about 358 (139)

Physical and chemical properties of the mucin secreted by Drosera capensis

Phytochemistry, 1977
Abstract The mucin droplets secreted by the leaves of Drosera capensis consist of a 4 % aq. solution of an acidic polysaccharide containing xylose, mannose,
Karl Rost, Roland Schauer
exaly   +2 more sources

Naphthoquinone Contents of Cultivated Drosera Species Drosera binata, D. binata var. dichotoma, and D. capensis

International Journal of Crude Drug Research, 1989
AbstractThe naphthoquinone contents of greenhouse cultivated Australian and South-African Drosera species (D. binata, D. binata var. dichotoma and D. capensis) have been investigated with regard to the plant organ, propagation method and plant development stage. Comparative analyses have been carried out on native populations of D.
R Caniato, E M Cappelletti
exaly   +2 more sources

A Rapid and Efficient Method for Isolating High Quality DNA from Leaves of Carnivorous Plants from the Drosera Genus

Molecular Biotechnology, 2011
International audienceDrosera rotundifolia, Drosera capensis, and Drosera regia are carnivorous plants of the sundew family, characterized by the presence of stalked and sticky glands on the upper leaf surface, to attract, trap, and digest insects. These
Alain Hehn, Sissi MIGUEL, Frédéric Bourgaud   +2 more
exaly   +2 more sources

Teratomas of Drosera capensis var. alba as a source of naphthoquinone: ramentaceone

Plant Cell, Tissue and Organ Culture (PCTOC), 2010
Plants belonging to genus Drosera (family Droseraceae) contain pharmacologically active naphthoquinones such as ramentaceone and plumbagin. Hairy root cultures obtained following Agrobacterium rhizogenes-mediated transformation have been reported to produce elevated levels of secondary compounds as well as exhibit desirable rapid biomass accumulation ...
Aleksandra Królicka, Anna Szpitter, Stawujak, Krzysztof, Barański, Rafał, Anna Gwizdek-Wiśniewska, Skrzypczak, Anna, Kamiński, Marian, Ewa Łojkowska   +7 more
openaire   +1 more source

An excitable membrane in the stalked glands of Drosera capensis L.

Planta, 1974
Shortly after feeding the surface of the gland of Drosera capensis L. with whole milk or other protein sources the plasmalemma adjacent to the tracheid becomes highly modified. No vesicle is seen to approach the membrane from within the cytoplasm, but the surface of the membrane grows and evaginates outwards forming a small protruding papilla or bleb ...
A J, Gilchrist, B E, Juniper
openaire   +2 more sources

Transport of Substances through the Tentacles of Leaves of Drosera capensis L.

Nature, 1952
IT was found by Darwin1 that the tentacles of Drosera secrete a viscous liquid with their glands, that they curve after stimulation and that they absorb substances from the animals caught. The processes of uptake and transport have been extensively studied in my laboratory2,4,5.
openaire   +2 more sources

Structural studies of an acidic polysaccharide from the mucin secreted by Drosera capensis

Carbohydrate Research, 1983
Abstract The polysaccharide of the mucin secreted by the leaves of Drosera capensis is composed of l -arabinose, d -xylose, d -galactose, d -mannose, and d -glucuronic acid in the molar ratio of 3.6:1.0:4.9:8.4:8.2. For structural elucidation, methylation analysis using g.l.c. and g.l.c.-m.s.
D.Channe Gowda, Gerd Reuter, Roland Schauer   +2 more
openaire   +1 more source

Ontogenetic Development of Pollen Tetrads of Drosera capensis L.

Botanical Gazette, 1988
The development of pollen tetrads of Drosera capensis was investigated by electron microscopy. The specialized proximal aperture system in pollen tetrads is composed of a proximal central pore, 10-15 channels, and cytoplasmic papillae and shows the derivative form of the equatorial 10-15 porate pollen tetrads of the ancestral Drosera species.
openaire   +1 more source

Prey-induced changes in the accumulation of amino acids and phenolic metabolites in the leaves of Drosera capensis L

Amino Acids, 2010
Effect of prey feeding (ants Formica fusca) on the quantitative changes in the accumulation of free amino acids, soluble proteins, phenolic metabolites and mineral nutrients in the leaves of carnivorous plant Drosera capensis was studied. Arginine was the most abundant compound in Drosera leaves, while proline was abundant in ants.
Jozef, Kováčik, Bořivoj, Klejdus, František, Stork, Josef, Hedbavny   +3 more
openaire   +2 more sources

Effect of different extraction methods on determination of Drosera capensis active ingredients

Phytochemistry Letters
Drosera capensis cape sundew is a carnivorous plant native to South Africa (Jobson and Conn, 2012). Drosera capensis is also known contained the 1,4-naphthoquinones and 7-methyljuglone chemicals are used for antimicrobial and antifungal purposes and prevent tumor formation (Ziaratnia et al., 2009).
Türkmen, Onur Sinan, Kucuk, Melike
openaire   +2 more sources