Environmental factors and interactions with mycobiota of grain and grapes: effects on growth, deoxynivalenol and ochratoxin production by Fusarium culmorum and Aspergillus carbonarius.
Environmental factors and interactions with mycobiota of grain and grapes: effects on growth, deoxynivalenol and ochratoxin production by Fusarium culmorum and Aspergillus carbonarius.
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DOI：
10.3390/toxins2030353
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发表时间：
2010-03
期刊：
影响因子：
4.2
通讯作者：
Mitchell D
中科院分区：
文献类型：
--
作者：
Magan N;Aldred D;Hope R;Mitchell D
在食物基质中定殖的产霉菌真菌不可避免地与广泛的其他常驻真菌竞争。这些相互作用的结果受到当时的环境条件和竞争物种的影响。我们对F. culmorum和A.在谷物和葡萄食物链中的碳串珠菌在其他真菌存在下的体外和原位优势，以及这种相互作用对菌落相互作用、生长和脱氧雪腐镰刀菌烯醇（DON）和赭曲霉毒素A（OTA）产生的影响。优势度指数表明，水分活度和温度的变化影响着F。culmorum和A. carbonarius对抗多达九种不同的真菌。两种真菌的生长有时会受到其他竞争真菌的抑制。例如，A.尼日尔单列和双列种对A. carbonarius，而出芽短梗霉和枝孢属物种刺激生长。当F.禾谷镰刀菌与其它禾谷真菌互作，如链格孢、禾枝孢和黑附球菌。对DON和OTA生产的影响非常不同。对于F. culmorum，其他物种的存在往往抑制DON生产在一系列的环境条件。对于. carbonarius中，在基于葡萄的培养基上，某些物种的存在导致OTA产生的显著刺激。然而，这是受温度和aw水平。这表明，在食品基质中观察到的最终霉菌毒素浓度可能是由于物种之间的复杂相互作用和分析样品的环境历史。
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.
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影响因子：
4
作者：
Mitchell, D;Parra, R;Magan, N
通讯作者：
Magan, N
影响因子：
4.4
作者：
Edwards, SG;Pirgozliev, SR;Jenkinson, P
通讯作者：
Jenkinson, P
影响因子：
2.6
作者：
MAGAN, N;LACEY, J
通讯作者：
LACEY, J
影响因子：
5.5
作者：
DECAL, A;PASCUAL, S;MELGAREJO, P
通讯作者：
MELGAREJO, P
DOI：
10.1016/j.ijfoodmicro.2009.01.032
发表时间：
2009-04-15
影响因子：
5.4
作者：
Giorni, Paola;Magan, Naresh;Battilani, Paola
通讯作者：
Battilani, Paola