บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Phytotoxicity of equisetin and epi-equisetin isolateed from Fusarium equiseti and F. pallidoroseum.

WHEELER, M.H., STIPANOVIC, R.D. and PUCKHABER, L.S.

Mycological Reserch 103: 967-973.

1999

บทคัดย่อ

Phytotoxicity of equisetin and epi-equisetin isolateed from Fusarium equiseti and F. pallidoroseum.

Fusarium equiseti and F. pallidoroseum  were isolated from the embryos of weathered cottonseed.  Most isolates produced equisetin when grown on potato dextrose agar, rice, surface-sterilised cottonseed or autoclaved cottonseed.  This is the first report of equisetin from   Equisetin was extracted from cultures of Fusarium equiseti  and F. pallidoroseum  with  acetone and dichloromethane, and partially purified by TLC.  Two epimers of equisetin, designated as EQ and epi-EQ, were  separated by HPLC.  Both epimers suppressed germination or inhibited growth of various monocotyledonous and dicotyledonous seeds, inhibited the growth of young seedlings and caused necrotic lesions on the roots, cotyledons and coleoptiles of tested plant seedlings.