A detailed knowledge of storage reserve accumulation in developing seeds can provide vital information to create strategies for improving the lipid content as well as the natural value of castor (Ricinus communis L.) crop. After hand pollination (female flowers-tagged), seed filling (lipid and protein accumulation) in castor bean is initiated as early as 7 days after pollination (DAP). Accumula...

Genes in the SQUAMOSA promoter-binding-protein (SBP-box) gene family encode transcriptional regulators and perform a variety of regulatory functions that involved in the developmental and physiological processes of plants. In this study, a comprehensive computational analysis identified 15 candidates of the SBP-box gene family in the castor bean (Ricinus communis). The phylogenetic and domain a...

1. Abada E., Al-Fifi Z., Osman M., 2019. Bioethanol production with carboxymethyl cellulase of Pseudomonas poae using castor bean (Ricinuscommunis L.) cake. Saudi J. Biol. Sci. 26, 866–871, https://doi.org/10.1016/j.sjbs.... CrossRef Google Scholar

The effect of chemical modification on a D(+)-galactose-specific lectin isolated from winged-bean tubers was investigated to identify the type of amino acid involved in its haemagglutinating activity. Various anhydrides of dicarboxylic acids, such as acetic anhydride, succinic anhydride, maleic anhydride and citraconic anhydride, modified 57-68% of the amino groups of the winged-bean tuber lect...

Ricin toxin, an extremely potent and heat-stable toxin produced from the bean of the ubiquitous Ricinus communis (castor bean plant), has been categorized by the US Centers for Disease Control and Prevention (CDC) as a category B biothreat agent that is moderately easy to disseminate. Ricin has the potential to be used as an agent of biological warfare and bioterrorism. Therefore, there is a cr...

1. Ricinoleic acid is shown to be synthesized in the immature castor bean seed only after 3-4 weeks from the time of fertilization. 2. Synthesis occurs both in the isolated embryo and the endosperm. 3. Linoleic acid does not act as precursor of ricinoleic acid in the isolated bean embryo. 4. Oleic acid is shown to be the direct precursor of ricinoleic acid. 5. The reaction does not use molecula...

The enzymatic digestion of a Kintoki bean lectin in vitro resulted in neither the extensive hydrolysis nor complete inactivation of the lectin. The majority of [3H]lectin administered to mice by stomach-intubation was found in the digestive tract at levels of 88.7%, 99.4%, 99.5% and 78.6%, after 0.5, 2, 5 and 24h of intubation, respectively. Twenty to forty percent of the administered radioacti...

A substantial portion of the ribulose 1,5-diphosphate carboxylase activity in the endosperm of germinating castor beans (Ricinus communis var. Hale) is recovered in the proplastid fraction. The partially purified enzyme shows homology with the enzyme from spinach (Spinacia oleracea) leaves, as evidenced by its reaction against antibodies to the native spinach enzyme and to its catalytic subunit...

The well characterized castor bean (Rhscm is L*) allergens were Identdfied as the low molecular weight albmin storae protein In the matrix of the protein bodles in the edsp mThe metbods of Idetifcatdon involved molecular weight estbition, amino acid compositon, stabilty at 1000 C, sobulity In various solvents, gel elec rs , and Immunological technbques. The fdinig explains the wide distrbution ...

Three pathways for phosphatidylcholine synthesis were assayed in castor bean (Ricinus communis var. Hale) endosperm. Phosphatidylethanolamine: S-adenosylmethionine methyl transferase occurred predominantly in the endoplasmic reticulum fraction, but some activity appeared in the mitochondria. Phosphorylcholine glyceride transferase occurred exclusively in the endoplasmic reticulum. The phosphory...