›› 2016, Vol. 28 ›› Issue (12): 2068-2075.DOI: 10.3969/j.issn.1004-1524.2016.12.16

• Plant Protection • Previous Articles     Next Articles

Effect of phenylalanine ammonialyase transgenic Arabidopsis thaliana on bacterial community in rhizosphere soil

LIU Dan, WU Feng-zhi*   

  1. Department of Horticulture, Northeast Agricultural University, Harbin 150030, China
  • Received:2016-05-12 Online:2016-12-15 Published:2017-01-05

Abstract: The effect of phenylalanine ammonialyase (Pal) transgenic Arabidopsis thaliana on the bacterial structure and diversity in rhizosphere soil was studied by Miseq method. The results showed that the Chao index for the bacterial communities was calculated, and was significantly higher in the rhizospheres collected from the AcPal+ transgenic Arabidopsis than the ones collected from the Pal- mutant Arabidopsis or wild type Arabidopsis. The Shannon diversity index and Simpson index for the bacterial communities were calculated, and both community diversity were significantly higher in the rhizospheres collected from the AcPal+ transgenic Arabidopsis than the ones collected from the Pal- mutant Arabidopsis or wild type Arabidopsis. The Actinobacteria relative abundances were increased at phylum levels, as well as Alphaproteobacteria relative abundances at class levels from the AcPal+ transgenic Arabidopsis than those from the Pal- mutant Arabidopsis. Major microbial groups of AcPal+ transgenic Arabidopsis are Proteobacteria, Cyanobacteria, Chloroflexi, Alphaproteobacteria, Deltaproteobacteria, Myxococcales etc. It indicated that the transgenic Arabidopsis roots might promote or inhibit the development of certain physiological characteristics of the bacterial community, and hence a change in the structure and diversity of the soil microbial communities.

Key words: transgenic Arabidopsis thaliana, bacteria, community structure, diversity

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