Taxonomic Study on Nonpathogenic Streptomycetes Isolated from Common Scab Lesions on Potato Tubers

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• 作者：Cyr-Lezin Doumbou ; Vladimir Akimov ; Mé ; lanie Cô ; té ; Pierre-Mathieu Charest ; Carole Beaulieu
• 关键词：16S rDNA ; numerical analysis ; potato scab ; rhizosphere ; Streptomyces scabiei ; Streptomyces scabies ; taxonomy
• 刊名：Systematic and Applied Microbiology
• 出版年：2001
• 出版时间：2001
• 年：2001
• 卷：24
• 期：3
• 页码：451-456
• 全文大小：176 K

文摘

Numerical analysis was carried out to compare sixteen nonpathogenic actinomycetes isolated from common scab lesions on potato tubers with Streptomyces scabiei type strain as well as withother streptomycete groups. These isolates were divided into two classes according to their level of similarity with S. scabiei. Isolates resembling S. scabiei were associated with S. griseoruber or with S. violaceusniger while isolates exhibiting less than 61 % of similarity with S. scabiei were phenotypically related to S. albidoflavus or to S. atroolivaceus. Sequence of the 16S rRNA gene of each isolate was obtained and compared against the GenBank nucleotide database. No significant match could be established between the sequences of two potato isolates and the ones available inthe GenBank database. The other isolates were closely related with S. setonii (S. griseus), S. mirabilis, S. fimbriatus, S. violaceoruber, S. melanosporofaciens and S. thermocarboxydus.