Plant growth in Arabidopsis is assisted by compost soil-derived microbial communities

Carvalhais, Lilia C., Muzzi, Frederico, Tan, Chin-Hong, Hsien-Choo, Jin and Schenk, Peer M. (2013) Plant growth in Arabidopsis is assisted by compost soil-derived microbial communities. Frontiers in Plant Science, 4 JUL: 235.1-235.15. doi:10.3389/fpls.2013.00235

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Author Carvalhais, Lilia C.
Muzzi, Frederico
Tan, Chin-Hong
Hsien-Choo, Jin
Schenk, Peer M.
Title Plant growth in Arabidopsis is assisted by compost soil-derived microbial communities
Formatted title
Plant growth in Arabidopsis is assisted by compost soil-derived microbial communities 
Journal name Frontiers in Plant Science   Check publisher's open access policy
ISSN 1664-462X
Publication date 2013-07
Sub-type Article (original research)
DOI 10.3389/fpls.2013.00235
Open Access Status DOI
Volume 4
Issue JUL
Start page 235.1
End page 235.15
Total pages 15
Place of publication Lausanne, Switzerland
Publisher Frontiers Research Foundation
Collection year 2014
Language eng
Formatted abstract
Plants in natural and agricultural environments are continuously exposed to a plethora of diverse microorganisms resulting in microbial colonization of roots and the rhizosphere. This process is believed to be accompanied by an intricate network of ongoing simultaneous interactions. In this study, we examined Arabidopsis thaliana roots and shoots in the presence or absence of whole microbial communities extracted from compost soil. The results show a clear growth promoting effect on Arabidopsis shoots in the presence of soil microbes compared to plants grown in microbe-free soil under otherwise identical conditions. Element analyses showed that iron uptake was facilitated by these mixed microbial communities which also led to transcriptional downregulation of genes required for iron transport. In addition, soil microbial communities suppressed the expression of marker genes involved in nitrogen uptake, oxidative stress/redox signaling, and salicylic acid (SA)-mediated plant defense while upregulating jasmonate (JA) signaling, cell wall organization/biosynthesis and photosynthesis. Multi-species analyses such as simultaneous transcriptional profiling of plants and their interacting microorganisms (metatranscriptomics) coupled to metagenomics may further increase our understanding of the intricate networks underlying plant-microbe interactions. 
Keyword Arabidopsis
Gene expression
Iron deficiency
Plant growth promotion
Plant-microbe interactions
Soil microbial communities
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2014 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
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