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《Journal of Anhui Agricultural Sciences》 2011-23
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Study on Symbiotic Association in Nannochloropsis Culture

HUANG Shi et al(College of Life and Environmental Sciences,Shanghai Normal University;Shanghai 200234)  
[Objective]Research the relationship between Nannochloropsis and alga-associated bacteria.[Method]Four bacterial strains identified as FG-1,FG-2,FG-3 and FG-4 were isolated from a laboratory culture of the marine oil microalgae Nannochloropsis sp.OZ-1 for better understanding of the interactions between them[Result]Phylogenetic analysis of 16S rDNA sequence revealed that strains FG-1,FG-2,FG-3 and FG-4 were close to Paracoccus sp.JAM-AL07,Planomicrobium sp.EP-20,Bacillus sp.YKJ-11,and Stappia stellulata,respectively.In addition to the growth promotion of Nannochloropsis sp.OZ-1 by FG-3,the growth of strains FG-3,FG-4,FG-5 was also significantly enhanced by co-culturing with extracellular organic matter from Nannochloropsis sp.OZ-1.[Conclusion]There has a symbiotic relationship between the FG-3 and Nannochloropsis sp.OZ-1,and has positive effect on the growth of Nannachloropsis sp.OZ-1.
【Fund】: 国家自然科学基金委重大国际(地区)合作研究项目(31010103907);; 中科院太阳能行动计划(KGCXZ-YW-374)
【CateGory Index】: S968.4
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