Title |
Inter- and intracellular colonization of Arabidopsis roots by endophytic actinobacteria and the impact of plant hormones on their antimicrobial activity
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Published in |
Antonie van Leeuwenhoek, January 2018
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DOI | 10.1007/s10482-018-1014-z |
Pubmed ID | |
Authors |
Anne van der Meij, Joost Willemse, Martinus A. Schneijderberg, René Geurts, Jos M. Raaijmakers, Gilles P. van Wezel |
Abstract |
Many actinobacteria live in close association with eukaryotes such as fungi, insects, animals and plants. Plant-associated actinobacteria display (endo)symbiotic, saprophytic or pathogenic life styles, and can make up a substantial part of the endophytic community. Here, we characterised endophytic actinobacteria isolated from root tissue of Arabidopsis thaliana (Arabidopsis) plants grown in soil from a natural ecosystem. Many of these actinobacteria belong to the family of Streptomycetaceae with Streptomyces olivochromogenes and Streptomyces clavifer as well represented species. When seeds of Arabidopsis were inoculated with spores of Streptomyces strain coa1, which shows high similarity to S. olivochromogenes, roots were colonised intercellularly and, unexpectedly, also intracellularly. Subsequent exposure of endophytic isolates to plant hormones typically found in root and shoot tissues of Arabidopsis led to altered antibiotic production against Escherichia coli and Bacillus subtilis. Taken together, our work reveals remarkable colonization patterns of endophytic streptomycetes with specific traits that may allow a competitive advantage inside root tissue. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Netherlands | 3 | 27% |
United Kingdom | 2 | 18% |
United States | 1 | 9% |
Germany | 1 | 9% |
Canada | 1 | 9% |
Unknown | 3 | 27% |
Demographic breakdown
Type | Count | As % |
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Scientists | 6 | 55% |
Members of the public | 5 | 45% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 126 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 26 | 21% |
Researcher | 18 | 14% |
Student > Master | 17 | 13% |
Student > Bachelor | 9 | 7% |
Student > Doctoral Student | 5 | 4% |
Other | 18 | 14% |
Unknown | 33 | 26% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 52 | 41% |
Biochemistry, Genetics and Molecular Biology | 19 | 15% |
Immunology and Microbiology | 8 | 6% |
Environmental Science | 2 | 2% |
Nursing and Health Professions | 1 | <1% |
Other | 9 | 7% |
Unknown | 35 | 28% |