dc.contributor.author |
Magan, Naresh |
- |
dc.contributor.author |
Aldred, David |
- |
dc.contributor.author |
Hope, Russell |
- |
dc.contributor.author |
Mitchell, David |
- |
dc.date.accessioned |
2012-02-29T23:02:22Z |
|
dc.date.available |
2012-02-29T23:02:22Z |
|
dc.date.issued |
2010-03-18T00:00:00Z |
- |
dc.identifier.citation |
Naresh Magan, David Aldred, Russell Hope and David Mitchell, Environmental factors and interactions with mycobiota of grain and grapes:
Effects on growth, deoxynivalenol and ochratoxin production by Fusarium culmorum
and Aspergillus carbonarius, Toxins, 2010, Volume 2,Issue 3, Pages 353-366. |
|
dc.identifier.issn |
2072-6651 |
- |
dc.identifier.uri |
http://dx.doi.org/10.3390/toxins2030353 |
- |
dc.identifier.uri |
http://dspace.lib.cranfield.ac.uk/handle/1826/7039 |
|
dc.description.abstract |
Mycotoxigenic fungi colonizing food matrices are inevitably competing with a
wide range of other resident fungi. The outcomes of these interactions are
influenced by the prevailing environmental conditions and the competing species.
We have evaluated the competitiveness of F. culmorum and A. carbonarius in the
grain and grape food chain for their in vitro and in situ dominance in the
presence of other fungi, and the effect that such interactions have on colony
interactions, growth and deoxynivalenol (DON) and ochratoxin A (OTA) production.
The Index of Dominance shows that changes in water activity (aw) and temperature
affect the competitiveness of F. culmorum and A. carbonarius against up to nine
different fungi. Growth of both mycotoxigenic species was sometimes inhibited by
the presence of other competing fungi. For example, A. niger uniseriate and
biseriate species decreased growth of A. carbonarius, while Aureobasidium
pullulans and Cladosporium species stimulated growth. Similar changes were
observed when F. graminearum was interacting with other grain fungi such as
Alternaria alternata, Cladopsorium herbarum and Epicoccum nigrum. The impact on
DON and OTA production was very different. For F. culmorum, the presence of
other species often inhibited DON production over a range of environmental
conditions. For A.carbonarius, on a grape-based medium, the presence of certain
species resulted in a significant stimulation of OTA production. However, this
was influenced by both temperature and aw level. This suggests that the final
mycotoxin concentrations observed in food matrices may be due to complex
interactions between species and the environmental history of the samples
analyzed. |
en_UK |
dc.publisher |
MDPI AG |
en_UK |
dc.title |
Environmental factors and interactions with mycobiota of grain and grapes:
Effects on growth, deoxynivalenol and ochratoxin production by Fusarium culmorum
and Aspergillus carbonarius |
en_UK |
dc.type |
Article |
- |