Digitale Medien
Oxford, UK
:
Blackwell Publishing Ltd
FEMS microbiology letters
243 (2005), S. 0
ISSN:
1574-6968
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Biologie
Notizen:
Based on the intergenic sequences of Tri5–Tri6 genes involved in the mycotoxin pathways of Fusarium species, a generic PCR assay was developed to detect a 300 bp fragment of deoxynivalenol (DON)-chemotypes and a 360 bp sequence of nivalenol (NIV)- chemotypes of Fusarium graminearum. Mycotoxin chemotypes identified by the PCR assays were confirmed by the chemical analyses of HPLC or GC/MS. Further analysis of 364 F. graminearum isolates from 12 provinces of China showed that 310 were DON-chemotypes and 54 were NIV-chemotypes. Sequence analyses revealed that DON-chemotypes display more variations than NIV-chemotypes. This PCR assay could be used to detect mycotoxin-producing Fusarium-species and may thus help to develop strategies to avoid or reduce mycotoxin contamination of cereals. Also this assay may provide useful alternatives to antibody-based mycotoxin tests.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1016/j.femsle.2005.01.015
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