Endophytic bacteria from banana cultivars and their antifungal activity

被引：28
|
作者：
Souza, A. [1 ]
Cruz, J. C. [2 ]
Sousa, N. R. [2 ]
Procopio, A. R. L. [1 ]
Silva, G. F. [2 ]
机构：
[1] Univ Estado Amazonas, Lab Biotecnol & Recursos Nat, Manaus, AM, Brazil
[2] Embrapa Amazonia Ocidental, Mol Biol Lab, Manaus, AM, Brazil
来源：
GENETICS AND MOLECULAR RESEARCH | 2014年 / 13卷 / 04期
关键词：
Bacillus; Fusarium oxysporum f. sp cubense; Endophytic; Biological control; Musa spp; BACILLUS-THURINGIENSIS; DIAZOTROPHIC BACTERIA; ANTAGONISTIC ACTIVITY; BIOLOGICAL-CONTROL; FUSARIUM-WILT; GROWTH; BIOCONTROL; DIVERSITY; PLANTLETS; SUBTILIS;
D O I：
10.4238/2014.October.27.6
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Endophytic microorganisms consist of fungi, bacteria, and actinomycetes that play important roles in the process of plant adaptation to the environment. Currently, the natural associations between microorganisms and plant species are being explored for a large number of biotechnological applications. In this study, 122 endophytic bacteria were isolated from 5 cultivars of Musa spp from the state of Amazonas (Brazil). Four strains were selected because they exhibited antagonistic activities against Fusarium oxysporum f. sp cubense and Colletotrichum guaranicola, with inhibitions ranging from 19 to 30% and 27 to 35%, respectively. Phylogenetic analysis of the 16S rDNA regions of these bacteria with antifungal activity showed that they are phylogenetically related to 3 different species of Bacillus - B. amyloliquefaciens, B. subtilis subsp subtilis, and B. thuringiensis.
引用
收藏
页码：8661 / 8670
页数：10
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