Abstract：
:The background levels of culturable indigenous microbial communities (microbiotas) on strawberries were examined in a field survey with four conventional and four organic growers with different production practise and geographic distribution. The microbiota on apparently healthy strawberries was complex including potential plant pathogens, opportunistic human pathogens, plant disease biocontrol agents and mycotoxin producers. The latter group was dominated by Penicillium spp. and Aspergillus niger was also isolated. As expected, bacteria were the most abundant and diverse group of the strawberry microbiota followed by yeasts and filamentous fungi. No obvious correlation between grower practice and the strawberry microbiota was observed. Differences between microbiotas on strawberries from conventional systems with up to 10 fungicide spray treatments and organic production systems were insignificant. Mycotoxins were not detected in mature strawberries from any of the eight different growers neither in additional samples of low quality berries. However, isolates of Penicillium expansum and A. niger produced high amounts of mycotoxins when incubated on strawberries at 25°C. Penicillium polonicum produced cyclopenol, cyclopenin, and viridicatin on the artificially infected berries, while Alternaria arborescens produced tenuazonic acid, Alternaria tenuissima produced altertoxin I and altenuene, and Trichoderma spp. produced several peptaibols. In conclusion, native strawberry microbiotas are highly diverse both in terms of taxonomic groups and functional traits that are important in relation to plant and human health.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Jensen B,Knudsen IM,Andersen B,Nielsen KF,Thrane U,Jensen DF,Larsen Jdoi
10.1016/j.ijfoodmicro.2012.11.005subject
Has Abstractpub_date
2013-01-01 00:00:00pages
313-22issue
3eissn
0168-1605issn
1879-3460pii
S0168-1605(12)00578-8journal_volume
160pub_type
杂志文章abstract：:A pentaplex PCR assay for the rapid, selective and simultaneous detection of Lactobacillus helveticus, L. delbrueckii subsp. lactis, L. delbrueckii subsp. bulgaricus, Streptococcus thermophilus, and L. fermentum, was developed. The target sequences were a group of genes coding for beta-galactosidase production (S. the...
journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
pub_type： 杂志文章
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.02.011
更新日期：2015-05-18 00:00:00
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
pub_type： 杂志文章
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journal_title：International journal of food microbiology
pub_type： 杂志文章
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
pub_type： 杂志文章
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journal_title：International journal of food microbiology
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journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
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journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.07.022
更新日期：2008-10-31 00:00:00
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journal_title：International journal of food microbiology
pub_type： 杂志文章
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更新日期：2009-04-15 00:00:00
