Epiphytic bacterial communities on two common submerged macrophytes in Taihu Lake: diversity and host-specificity

Dan He; Lijuan Ren; Qinglong Wu

doi:10.1007/s00343-012-1084-0

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Epiphytic bacterial communities on two common submerged macrophytes in Taihu Lake: diversity and host-specificity

Updated：2023-05-16

- Epiphytic bacterial communities on two common submerged macrophytes in Taihu Lake: diversity and host-specificity
- Journal of Oceanology and Limnology Vol. 30, Issue 2, Pages: 237-247(2012)
- Affiliations：
  
  1. State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and Limnology Chinese Academy of Sciences
  2. Graduate University of Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1084-0
  CLC：
- Online First：01 March 2012，
  
  Published：2012
- Accepted：
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He, D., Ren, L. & Wu, Q. Epiphytic bacterial communities on two common submerged macrophytes in Taihu Lake: diversity and host-specificity., Chin. J. Ocean. Limnol. 30, 237–247 (2012). https://doi.org/10.1007/s00343-012-1084-0
DOI：

He, D., Ren, L. & Wu, Q. Epiphytic bacterial communities on two common submerged macrophytes in Taihu Lake: diversity and host-specificity., Chin. J. Ocean. Limnol. 30, 237–247 (2012). https://doi.org/10.1007/s00343-012-1084-0 DOI：

摘要

Abstract

Leaves of terrestrial and aquatic plants are home to a wide diversity of bacterial species. However

the diversity and variability of epiphytic bacteria on their submerged plant hosts remains poorly understood. We investigated the diversity and composition of epiphytic bacteria from two common submerged macrophytes: Vallisneria natans and Hydrilla verticillata in Taihu Lake

Jiangsu

China

using methods of terminal restriction fragment length polymorphisms (T-RFLP) and clone library analyses targeted at bacterial 16S rRNA genes. The results show that: (1) the libraries of the two waterweeds contain wide phylogenetic distribution of bacteria

and that the sequences of the two libraries can be separated into 93 OTUs (at 97% similar value); (2) Betaproteobacteria

including Burkholderiales

was the most abundant bacterial group on both plants. Cyanobacteria and Gammaproteobacteria were the second largest groups on V. natans and H. verticillata

respectively. Both clone libraries included some sequences related to those of methanotrophs and nitrogen-fixing bacteria; (3) Cluster analysis of the T-RFLP profiles showed two distinct clusters corresponding to the two plant populations. Both ANOSIM of the T-RFLP data and Libshuff analysis of the two clone libraries indicated a significant difference in epiphytic bacterial communities between the two plants. Therefore

the epiphytic bacterial communities on submerged macrophytes appear to be diverse and host-specific

which may aid in understanding the ecological functions of submerged macrophytes in general.

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references

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