iranian castor bean lectin was isolated and purified by several column chromatography methods. then, the sugar and amino acid content of the purified lectin was identified. castor bean lectin has some anti tumor and anti leukemia action. thus it may be used commercially for medical and biochemical purposes.

in order to evaluate the density and dry weight of weeds and seed and oil yield of castor bean ricinus communis l.) as a medicinal plant affected by cover crops, an experiment was conducted at the agricultural research station, faculty of agriculture, ferdowsi university of mashhad, during growing season of 2008-2009. treatments were four cover crops included white clover, fenugreek, hairy vetc...

Glyoxysomes, a form of microbody, are present in castor bean endosperm during the first 8 days of seed germination. They have a "typical" microbody form and are shown histochemically to contain catalase. The catalase label is distributed throughout the microbody and is not an exclusive feature of the crystalline or amorphous core.Castor bean endosperm contain a second cytosome, only slightly la...

Biosynthesis of ent-kaurene was investigated in extracts of cell suspension cultures and seedlings of castor bean. Both cell-free extracts contain an inhibitor of kaurene synthetase. The inhibition affects mainly the cyclization of geranylgeranyl pyrophosphate to copalyl pyrophosphate (activity A) and has little or no effect on the further cyclization of copalyl pyrophosphate to ent-kaurene (ac...

Ricinus communis (castor bean) seeds are used to produce an alcohol-soluble oil that is used in more than 400 industrial processes. Despite its economic importance, there has been little research on the endophytic microbiota of castor bean seeds. This microbiota is important for plant metabolic processes and may have considerable biotechnological potential, such as production of lipases and pla...

Castor bean (Ricinus communis L.) is one of the most important non-edible oilseed crops. Characterization of seed development and lipid accumulation from female flowers pollinated to mature seeds has been carried out. The temporal expression patterns of 65 lipid genes involved in fatty acid and triacylglycerol biosynthesis using the semi-quantitative RT-PCR technique were also investigated. The...

BACKGROUND Ricinus communis (castor bean) is a species included into the Euphorbiaceae family, common to all the warm regions of the world. Although the allergenicity of its seed is well known, references are scarce regarding the role played by its pollen as a pneumo-allergen. OBJECTIVES To carry out an aerobiological study of this pollen in the Málaga area (southern Spain); describe the phys...

Purpose To evaluate the polymer doped rods behavior with bioactive glass and hydroxyapatite for possible application as a fracture fixing method. Methods Twenty eight Rattus norvegicus Wistar underwent bone defect for access to the femoral medullary canal and distributed into three experimental groups: group A - doped castor bean polymer with bioactive glass; group B - castor bean polymer and; ...

Castor bean (Ricinus communis L.) is cultivated mainly for biodiesel production because of its oil-rich seeds; it is assumed to be an anemophylous species. But pollination deficit can lead to low productivity often attributed to other reasons. In this paper, we investigated pollination requirements, pollination mechanism, occurrence of pollination deficit, and the role of biotic pollinators in ...

seeds of the castor bean plant ricinuscommunis l (cb) contain ricin toxin (rt), one of the most poisonous naturally-occurring substances known. ricin toxin, a water-soluble glycoprotein that does not partition into the oil extract, is a ribosome-inactivating toxin composed of two chains, labeled a and b. severity of the toxicity varies depending on the route of exposure to the toxin. inhalation...