Biochemical studies of rice phytoalexins

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Phenolic Phytoalexins in Rice: Biological Functions and Biosynthesis

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Biochemical and immunological characterization of rice albumin.

Rice albumin from Oryza sativa (Var. Basmati 370) accounts for about 5% of the total seed proteins. A major fraction of rice albumin has been found to be a glycoprotein which is a monomer of 60 kd having iso-electric point 6.54. When rice albumin is digested with trypsin, it shows the presence of 24 peptides as against 28 peptides which were estimated from its amino acid composition. This indic...

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Diterpene phytoalexins are biosynthesized in and exuded from the roots of rice seedlings.

Rice (Oryza sativa L.) produces a variety of diterpene phytoalexins, such as momilactones, phytocassanes, and oryzalexins. Momilactone B was previously identified as an allelopathic substance exuded from the roots of rice. We identified in this present study momilactone A and phytocassanes A-E in extracts of, and exudates from, the roots of rice seedlings. The concentration of each compound was...

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Antiproliferative Effect of Indole Phytoalexins.

Indole phytoalexins from crucifers have been shown to exhibit significant anti-cancer, chemopreventive, and antiproliferative activity. Phytoalexins are natural low molecular antimicrobial compounds that are synthesized and accumulated in plants after their exposure to pathogenic microorganisms. Most interestingly, crucifers appear to be the only plant family producing sulfur-containing indole ...

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Phytoalexins from Dolichos biflorus

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ژورنال

عنوان ژورنال: Mycotoxins

سال: 1996

ISSN: 0285-1466,1881-0128

DOI: 10.2520/myco1975.1996.7