Title |
The filamentous phage XacF1 causes loss of virulence in Xanthomonas axonopodis pv. citri, the causative agent of citrus canker disease
|
---|---|
Published in |
Frontiers in Microbiology, July 2014
|
DOI | 10.3389/fmicb.2014.00321 |
Pubmed ID | |
Authors |
Abdelmonim Ali Ahmad, Ahmed Askora, Takeru Kawasaki, Makoto Fujie, Takashi Yamada |
Abstract |
In this study, filamentous phage XacF1, which can infect Xanthomonas axonopodis pv. citri (Xac) strains, was isolated and characterized. Electron microscopy showed that XacF1 is a member of the family Inoviridae and is about 600 nm long. The genome of XacF1 is 7325 nucleotides in size, containing 13 predicted open reading frames (ORFs), some of which showed significant homology to Ff-like phage proteins such as ORF1 (pII), ORF2 (pV), ORF6 (pIII), and ORF8 (pVI). XacF1 showed a relatively wide host range, infecting seven out of 11 strains tested in this study. Frequently, XacF1 was found to be integrated into the genome of Xac strains. This integration occurred at the host dif site (attB) and was mediated by the host XerC/D recombination system. The attP sequence was identical to that of Xanthomonas phage Cf1c. Interestingly, infection by XacF1 phage caused several physiological changes to the bacterial host cells, including lower levels of extracellular polysaccharide production, reduced motility, slower growth rate, and a dramatic reduction in virulence. In particular, the reduction in virulence suggested possible utilization of XacF1 as a biological control agent against citrus canker disease. |
X Demographics
As of 1 July 2024, you may notice a temporary increase in the numbers of X profiles with Unknown location. Click here to learn more.
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
France | 1 | 1% |
Unknown | 86 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 15 | 17% |
Researcher | 14 | 16% |
Student > Ph. D. Student | 10 | 11% |
Student > Bachelor | 10 | 11% |
Student > Doctoral Student | 7 | 8% |
Other | 11 | 13% |
Unknown | 20 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 28 | 32% |
Biochemistry, Genetics and Molecular Biology | 16 | 18% |
Immunology and Microbiology | 9 | 10% |
Medicine and Dentistry | 3 | 3% |
Business, Management and Accounting | 1 | 1% |
Other | 6 | 7% |
Unknown | 24 | 28% |