Isolation, quantity distribution and characterization of endophytic microorganisms within sugar beet
文献类型: 外文期刊
第一作者: Shi, Yingwu
作者: Shi, Yingwu;Lou, Kai;Shi, Yingwu;Li, Chun
作者机构:
关键词: Isolation;quantity distribution;characterization;endophytic microorganisms;sugar beet
期刊名称:AFRICAN JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.573; 五年影响因子:0.794 )
ISSN: 1684-5315
年卷期: 2009 年 8 卷 5 期
页码:
收录情况: SCI
摘要: The present investigation was undertaken in order to document the spectrum of endophytes colonizing healthy leaves of sugar beet cultivars in Xinjiang Province ( China) and to determine the degree of colonization at three growth stages. From the 360 sugar beet leaf and root segments incubated, 221 bacterial isolates, 34 fungal isolates and 5 actinomycete isolates were obtained. Of all the isolates, 7 bacterial species and 6 fungal species were identified. The actinomycete isolates were characterized as Streptomyces griseofuscus and Streptomyces globisporus. There were significant differences between microorganisms, stages of growth, and stages of microorganism interaction. The number of microorganisms isolated increased during the growth period of the sugar beet. At the same time, the number of microorganisms affecting different parts of the sugar beet tissue was quite different. The greatest number of microorganisms was found in the secondary root emergence zone of the sugar beet tissue. Endophytic microorganisms in sugar beet promote growth and increase the yield of the beet.
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