ARS | Publication request: ACTIVITY OF QUINONES ON COLLETOTRICHUM SPECIES

Submitted to: Journal of Agricultural and Food Chemistry
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: April 21, 2003
Publication Date: May 17, 2003
Citation: MEAZZA, G., DAYAN, F.E., WEDGE, D.E. 2003. Acativity of quinones on colletotrichum species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. 51:3824-3828.

Interpretive Summary: The search for natural pesticides, including natural fungicides, led us to test several natural products based on the quinones structure. The test demonstrated that several of these compounds inhibited the growth of fungi that are responsible for important plant diseases. There were some differences in the response of various disease organisms to the active compounds.

Technical Abstract: The antifungal activity of 1,4-naphthoquinones, 1,2-naphthoquinones, 1,4-benzoquinones, anthraquinones, and other miscellaneous compounds from our natural products collection were tested by bioautography. Quinones demonstrated good to moderate antifungal activity against Colletotrichum spp. Colletotrichum fragariae appeared to be the most sensitive species to quinone-based chemistry, C. gloeosporioides of intermediate sensitivity, and C. acutatum was the least sensitive species to these compounds.