   1.1.3.5 | physiological function |
hexose oxidase-mediated hydrogen peroxide is the mechanism for the antibacterial activity, e.g. against Bacillus subtilis strain ATCC 6633, in the red seaweed Ptilophora subcostata. Crude algaeal extract prevents the growth of gram-positive and -negative bacteria, overview, which is completely inhibited by treatment with catalase. But the extract does not affect the growth of either a yeast or a filamentous fungus, such as Candida albicans and Penicillium decambens. The activity is highest in the presence of galactose. Enzyme HOX-mediated H2O2 production represents a defense mechanism against a broad range of bacteria in marine algae |
743600 |
