| 烟草赤星病拮抗细菌Ata28菌株的诱变选育 |
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| 作者姓名： | chgxiao@swau.cq.c |
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| 作者单位： | 西南大学植物保护学院 重庆400716 |
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| 摘 要： | 以烟草赤星病拮抗细菌Ata28菌株为出发菌株,采用紫外线、硫酸二已酯和微波诱变法进行诱变;再挑取诱变获得的对烟草赤星病菌Tbs3抑菌带最宽的突变株Uv-126,Des-66,Mw-110作遗传稳定性试验。其中经微波诱变获得突变株Mw-110,其抑菌带宽由出发菌株Ata28的8.4mm提高到10.9mm,比出发菌株提高了29.8%,并高于Uv-126,Des-66。Mw-110在培养基中连续培养8代以后,其遗传性状较Uv-126,Des-66更为稳定。
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| 关 键 词： | 烟草赤星病 拮抗细菌 诱变选育 |
Studies on Mutation Breeding of Antagonistic Bacteria Ata28 Strain Against Tobacco Brown Spot |
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| Authors: | S |
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| Institution: | College of Plant Protection, Southwest University, Chongqing 400716 |
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| Abstract: | As an original strain, antagonistic bacteria Ata28 against tobacco brown spot was mutated by UV, DES and Microwave irradiation,and mutant strains Uv-126,Des-66,Mw-110 were tested for genetic stability. Mw-110 was obtained through the microwave irradiating,and its inhibition zone was increased 29.8% from 8.4mm to 10.9mm, and its increase of inhibition zone exceeded Uv-126, Des-66. Successively cultured eight times in the medium, heredity character of Mw-110 was stabler than Uv-126, Des-66. |
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| Keywords: | Tobacco brown spot Antagonistic bacteria Mutation breeding |
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