4.7 Article

Temporal dynamics of sediment bacterial communities in monospecific stands of Juncus maritimus and Spartina maritima

期刊

PLANT BIOLOGY
卷 18, 期 5, 页码 824-834

出版社

WILEY
DOI: 10.1111/plb.12459

关键词

Bacterial diversity; ecosystem functioning; metabolic pathways; metagenomic analysis; salt marsh

资金

  1. Portuguese Foundation for Science and Technology, FCT, project LTER-RAVE [LTER/BIA-BEC/0063/2009]
  2. MCES (PIDDAC)
  3. Post-Doc grant [SFRH/BPD/79537/2011]
  4. POPH/FSE
  5. European Commission under the 7th Framework Programme through the collaborative research project LAGOONS [283157]
  6. FCT/MEC
  7. FEDER of CESAM [UID/AMB/50017]
  8. Fundação para a Ciência e a Tecnologia [LTER/BIA-BEC/0063/2009] Funding Source: FCT

向作者/读者索取更多资源

In the present study, we used 16S rRNA barcoded pyrosequencing to investigate to what extent monospecific stands of different salt marsh plant species (Juncus maritimus and Spartina maritima), sampling site and temporal variation affect sediment bacterial communities. We also used a bioinformatics tool, PICRUSt, to predict metagenome gene functional content. Our results showed that bacterial community composition from monospecific stands of both plant species varied temporally, but both host plant species maintained compositionally distinct communities of bacteria. Juncus sediment was characterised by higher abundances of Alphaproteobacteria, Myxococcales, Rhodospirillales, NB1-j and Ignavibacteriales, while Spartina sediment was characterised by higher abundances of Anaerolineae, Synechococcophycidae, Desulfobacterales, SHA-20 and Rhodobacterales. The differences in composition and higher taxon abundance between the sediment bacterial communities of stands of both plant species may be expected to affect overall metabolic diversity. In line with this expectation, there were also differences in the predicted enrichment of selected metabolic pathways. In particular, bacterial communities of Juncus sediment were predicted to be enriched for pathways related to the degradation of various (xenobiotic) compounds. Bacterial communities of Spartina sediment in turn were predicted to be enriched for pathways related to the biosynthesis of various bioactive compounds. Our study highlights the differences in composition and predicted functions of sediment-associated bacterial communities from two different salt marsh plant species. Loss of salt marsh habitat may thus be expected to both adversely affect microbial diversity and ecosystem functioning and have consequences for environmental processes such as nutrient cycling and pollutant remediation.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据