Thirty five plants belonging to twenty families were studied for their antimicrobial activity. Among the plants tested, 43 % showed antimicrobial activity. Fifteen plants belonging to 10 families exhibited activity against gram positive bacteria and gram negative bacteria. Four plants namely Azadirachta indica, Garadenia jasminoides, Magnifera indica, and Wrightia tinctora showed an appreciable...

To better dissect non-host resistance against haustorium-forming powdery mildew pathogens, a sow thistle powdery mildew isolate designated Golovinomyces cichoracearum UMSG1 that has largely overcome penetration resistance but is invariably stopped by post-invasion non-host resistance of Arabidopsis thaliana was identified. The post-invasion non-host resistance is mainly manifested as the format...

A common response by plants to fungal attack is deposition of callose, a (1,3)-β-glucan polymer, in the form of cell wall thickenings called papillae, at site of wall penetration. While it has been generally believed that the papillae provide a structural barrier to slow fungal penetration, this idea has been challenged in recent studies of Arabidopsis (Arabidopsis thaliana), where fungal resis...

A common response by plants to fungal attack is deposition of callose, a (1,3)-b-glucan polymer, in the form of cell wall thickenings called papillae, at site of wall penetration. While it has been generally believed that the papillae provide a structural barrier to slow fungal penetration, this idea has been challenged in recent studies of Arabidopsis (Arabidopsis thaliana), where fungal resis...

The biogenesis of rosmarinic acid (alpha-O-caffeoyl-3,4-dihydroxyphenyl-lactic acid), the second most common ester of caffeic acid in the plant kingdom, was studied in Mentha arvense and Mentha piperita. Administration of (14)C-labelled compounds showed that, whereas the caffeoyl moiety was formed from phenylalanine via cinnamic acid and p-coumaric acid, the 3,4-dihydroxyphenyl-lactic acid moie...

Health hazards caused by heavy metals have become a great concern to the population. Excessive industrial effluents, pesticide application and biomedical activities load a large amount of metals and metalloids to the environment. Cadmium is one of these, with high rate of bioaccumulation and extreme toxicity at low concentration. Cadmium is exposed to air and water through a number of industria...