| Title |
Genes commonly involved in acid tolerance are not overexpressed in the plant microsymbiont Mesorhizobium loti MAFF303099 upon acidic shock
|
|---|---|
| Published in |
Applied Microbiology and Biotechnology, June 2014
|
| DOI | 10.1007/s00253-014-5875-4 |
| Pubmed ID | |
| Authors |
Marta Laranjo, Ana Alexandre, Solange Oliveira |
| Abstract |
Rhizobia are legume bacterial symbionts that fix nitrogen in the root nodules of plants. The aim of the present study was to investigate the global transcriptional response of rhizobia upon an acidic shock. Changes in the transcriptome of cells of Mesorhizobium loti strain MAFF303099 upon an acidic shock at pH 3 for 30 min were analysed. From a total of 7,231 protein-coding genes, 433 were found to be differentially expressed upon acidic shock, of which 322 were overexpressed. Although most of the overexpressed genes encode hypothetical proteins, the two most represented Cluster of Orthologous Group (COG) categories are 'defence mechanisms' and 'transcription'. Differentially expressed genes are dispersed throughout the chromosome, with the exception of the symbiosis island, where most genes remain unchanged. A significant number of transcriptional regulators and ABC transporter genes are overexpressed. No overexpression of genes typically associated to acid tolerance in rhizobia, such as act and exo genes, was detected. Overall, this study suggests a transcriptional response to acidic shock of M. loti distinct from other rhizobia. Additional studies are in course to explore the role of some of the highly overexpressed genes and to further elucidate the molecular bases of acid stress response. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 11% |
| United Kingdom | 1 | 5% |
| France | 1 | 5% |
| Austria | 1 | 5% |
| Unknown | 14 | 74% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 4 | 21% |
| Student > Ph. D. Student | 4 | 21% |
| Student > Bachelor | 2 | 11% |
| Professor > Associate Professor | 2 | 11% |
| Researcher | 2 | 11% |
| Other | 1 | 5% |
| Unknown | 4 | 21% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 7 | 37% |
| Computer Science | 3 | 16% |
| Biochemistry, Genetics and Molecular Biology | 2 | 11% |
| Earth and Planetary Sciences | 1 | 5% |
| Social Sciences | 1 | 5% |
| Other | 0 | 0% |
| Unknown | 5 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 17 June 2014.
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#16,371,088
of 24,119,703 outputs
Outputs from Applied Microbiology and Biotechnology
#5,817
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#137,609
of 232,505 outputs
Outputs of similar age from Applied Microbiology and Biotechnology
#57
of 93 outputs
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