IN VITROANTIFUNGAL ACTION OF Bacillus sp ISOLATE ON Fusarium oxysporum f. sp lycopersici.

被引:0
作者
Ribeiro Lima, Odenilson De Deus [1 ]
Machado Goes De Oliveira, Leonardo De Jesus [1 ]
Brasil Dos Santos E Silva, Monica Shirlei [1 ]
Costa Rodrigues, Antonia Alice [2 ]
机构
[1] Univ Estadual Maranhao, Programa Posgrad Agroecol, BR-65054970 Sao Luis, MA, Brazil
[2] Univ Estadual Maranhao, BR-65054970 Sao Luis, MA, Brazil
关键词
Solanum lycopersicon L; Biological Control; Antagonism; Fusariose; FRUIT; MECHANISMS; SUBTILIS; STRAINS; CITRUS;
D O I
暂无
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
This study aimed to evaluate antagonism and metabolites produced by different species of Bacillus in the inhibition of mycelial growth in vitro against F. oxysporum f. sp. lycopersici. For evaluating the antagonism of Bacillus spp. F. oxysporum f. sp. lycopersici was performed pairing of fungus and bacteria by the method of the circle. In the method for detection for the quality for thermostable metabolites liquids. Media BD were used for growth of the isolated Bacillus sp. And incubated for 15 days. After this period, was added 3 g of agar in each flask, and autoclaved broth and poured into Petri dishes. In the center of the plates were placed discs culture of the pathogen. The experimental design was completely randomized with 11 treatments and six repetitions in both experiments. Statistical difference was found between the isolate and the control. Special mention to strains B12 (Bacillus sp.), B41 (B. cereus), B22' (B. pentothenticus), B45 (B. cereus), B47 (B. cereus) that exhibited the lowest average diameter of the colony. To study the inhibition of mycelial growth of F. oxysporum f. sp. lycopersici by thermostatable metabolites five differ statistically from the control they are: B35 (B. pumilus), B47 (B. cereus), B22' (B. pentothenticus), B12 (Bacillus sp.) and B41 (B. cereus) the latter two treatments showed the best results of the pathogen colony diameters and 3.81 to 2.89 cm, respectively. B12 and B41 Isolates showed that their antibiotic products were able to inhibit 67.88 % and 57,66 % of F. oxysporum f. sp. lycopersici. These results highlight the possibility of using isolates of the genus Bacillus in the fight against fusarium wilt in tomato.
引用
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页码:57 / 64
页数:8
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