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Mutagenesis of Bacillus subtilis with High Toxicity and Strong Resilience，and Its Effect of Control of Botrytis cinerea of ‘Poinsettia’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年23期
Page:
101-105
Research Field:
Publishing date:

Info

Title:
Mutagenesis of Bacillus subtilis with High Toxicity and Strong Resilience，and Its Effect of Control of Botrytis cinerea of ‘Poinsettia’
Author(s):
LI Na; LIU Jin-xia; DU Wen-jing; LI Jing; DING Pin; ZHANG Jian-jun; WU Jian-rong
Institute of Biology，Gansu Academy of Sciences,Lanzhou,Gansu 730000
Keywords:
Bacillus subtilis; high toxicity; resilience; breeding; Botrytis cinerea Pers.; ‘Poinsettia’
PACS:
S 685.23；S 476
DOI:
-
Abstract:
Taking the mutagenesis of Bacillus subtilis Bs-a by UV and NTG combined with the test of resilience and indoor and outdoor antibacterial activity，filter out two superior strains of bacteria D17 and W03，which had stable inheritance high toxicity，strong resilience.The results showed that the anti-UV ability of the bacterias were strong，the living bacteria concentration of which remained viable up to 108 cfu/mL or more after ultra-vioket radiation for 2 hours.The range of withstand temperature and pH were 0-60℃ and pH 3-9，Their control effect of Botrytis cinerea of “Poinsettia” were more than 85%.It was significantly different with original strain Bs-a.D17 and W03 were industrial development valuable in microbial biocontrol bacteria.

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Last Update: 2014-12-23