Mycotoxin Production by Fusarium proliferatum isolates from rice with Fusarium sheath rot disease |
| |
Authors: | Abbas H. K. Cartwright R. D. Xie W. Mirocha C. J. Richard J. L. Dvorak T. J. Sciumbato G. L. Shier W. T. |
| |
Affiliation: | (1) USDA-ARS, Crop Genetics & Production Research Unit, Stoneville, MS, U.S.A.;(2) CES, University of Arkansas, Little Rock, AR, U.S.A.;(3) Plant Pathology Dept., University of Minnesota, St. Paul, MN, U.S.A.;(4) USDA-ARS, NCAUR, Peoria, IL, U.S.A.;(5) Delta Research and Extension Centers, Stoneville, MS, U.S.A.;(6) College of Pharmacy, University of Minnesota, Minneapolis, MN, U.S.A |
| |
Abstract: | Twenty samples of unpolished (rough) rice collected in Arkansas and Texas during the 1995 harvesting season from fields exhibiting Fusarium sheath rot disease or panicle blight were previously shown to include 8 samples positive for fumonisin B1(FB1) in the range 2.2–5.2 ppm, and moniliformin (MON), but no beauvericin (BEA), deoxynivalenol, its derivatives or zearalenone were detected. Fifteen cultures of F. proliferatum were established from the 20 rough rice samples. Single spore isolates of each culture were grown on rice and tested for the production of fumonisins (FB1, FB2, FB3, etc.), MON and BEA. All 15 isolates produced FB1, FB2, MON and BEA in culture on rice. No deoxynivalenol, its derivatives orzearalenone were detected. Seven cultures produced FB1 at >50ppm (range 80–230 ppm), with therest producing FB1 in the range 14–43 ppm.FB2 was produced in the range 5–47 ppm, and those cultures which produced the most FB1 also produced the most FB2. Of the 15 cultures producing MON, 11 produced it at >100 ppm in the range 188–6018 ppm, with the rest producing in the range 7–64 ppm. BEA was produced in the range 109–1350 ppm. Other derivatives of fumonisins, including FA1, FA2 and partially hydrolyzed FB1, as well asseveral unknown metabolites including a compound with MW 414, were identified in culture extracts by continuous flow fast atom bombardment with ion spraymass spectrometry (CF/FAB/MS). Further study is needed to identify the factors that control production of FB1, MON and BEA by F.proliferatu in culture and in field samples. This revised version was published online in June 2006 with corrections to the Cover Date. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|