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Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean

Geert De Meyer UGent and Monica Höfte UGent (1997) PHYTOPATHOLOGY. 87(6). p.588-593
abstract
Selected strains of nonpathogenic rhizobacteria can induce a systemic resistance in plants that is effective against various pathogens. In an assay with bean plants, we investigated which determinants of the rhizobacterium Pseudomonas aeruginosa 7NSK2 are important for induction of resistance to Botrytis cinerea. By varying the iron nutritional state of the bacterium at inoculation, it was demonstrated that induced resistance by P. aeruginosa 7NSK2 was iron-regulated. As P. aeruginosa 7NSK2 produces three siderophores under iron limitation, pyoverdin, pyochelin, and salicylic acid, we investigated the involvement of these iron-regulated metabolites in induced resistance by using mutants deficient in one or more siderophores. Results demonstrated that salicylic acid production was essential for induction of resistance to B. cinerea by Fl aeruginosa 7NSK2 in bean and did not exclude a role for pyochelin. A role for pyoverdin, however, could not be demonstrated. Transcriptional activity of salicylic acid and pyochelin biosynthetic genes was detected during P. aeruginosa 7NSK2 colonization of bean. Moreover, the iron nutritional state at inoculation influenced the transcriptional activity of salicylic acid and pyochelin biosynthetic genes in the same way as it influenced induction of systemic resistance to B. cinerea.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
induced systemic resistance, Phaseolus vulgaris, plant growth-promoting rhizobacteria, reporter gene, SP STRAIN WCS417R, SYSTEMIC RESISTANCE, FUSARIUM-WILT, ACQUIRED-RESISTANCE, DISEASE RESISTANCE, RHIZOSPHERE, FLUORESCENS, INDUCTION, BACTERIA, TOBACCO
journal title
PHYTOPATHOLOGY
Phytopathology
volume
87
issue
6
pages
588 - 593
Web of Science type
Article
ISSN
0031-949X
DOI
10.1094/PHYTO.1997.87.6.588
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
184429
handle
http://hdl.handle.net/1854/LU-184429
date created
2004-01-14 13:41:00
date last changed
2017-03-31 08:07:49
@article{184429,
  abstract     = {Selected strains of nonpathogenic rhizobacteria can induce a systemic resistance in plants that is effective against various pathogens. In an assay with bean plants, we investigated which determinants of the rhizobacterium Pseudomonas aeruginosa 7NSK2 are important for induction of resistance to Botrytis cinerea. By varying the iron nutritional state of the bacterium at inoculation, it was demonstrated that induced resistance by P. aeruginosa 7NSK2 was iron-regulated. As P. aeruginosa 7NSK2 produces three siderophores under iron limitation, pyoverdin, pyochelin, and salicylic acid, we investigated the involvement of these iron-regulated metabolites in induced resistance by using mutants deficient in one or more siderophores. Results demonstrated that salicylic acid production was essential for induction of resistance to B. cinerea by Fl aeruginosa 7NSK2 in bean and did not exclude a role for pyochelin. A role for pyoverdin, however, could not be demonstrated. Transcriptional activity of salicylic acid and pyochelin biosynthetic genes was detected during P. aeruginosa 7NSK2 colonization of bean. Moreover, the iron nutritional state at inoculation influenced the transcriptional activity of salicylic acid and pyochelin biosynthetic genes in the same way as it influenced induction of systemic resistance to B. cinerea.},
  author       = {De Meyer, Geert and H{\"o}fte, Monica},
  issn         = {0031-949X},
  journal      = {PHYTOPATHOLOGY},
  keyword      = {induced systemic resistance,Phaseolus vulgaris,plant growth-promoting rhizobacteria,reporter gene,SP STRAIN WCS417R,SYSTEMIC RESISTANCE,FUSARIUM-WILT,ACQUIRED-RESISTANCE,DISEASE RESISTANCE,RHIZOSPHERE,FLUORESCENS,INDUCTION,BACTERIA,TOBACCO},
  language     = {eng},
  number       = {6},
  pages        = {588--593},
  title        = {Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean},
  url          = {http://dx.doi.org/10.1094/PHYTO.1997.87.6.588},
  volume       = {87},
  year         = {1997},
}

Chicago
De Meyer, Geert, and Monica Höfte. 1997. “Salicylic Acid Produced by the Rhizobacterium Pseudomonas Aeruginosa 7NSK2 Induces Resistance to Leaf Infection by Botrytis Cinerea on Bean.” Phytopathology 87 (6): 588–593.
APA
De Meyer, Geert, & Höfte, M. (1997). Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean. PHYTOPATHOLOGY, 87(6), 588–593.
Vancouver
1.
De Meyer G, Höfte M. Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean. PHYTOPATHOLOGY. 1997;87(6):588–93.
MLA
De Meyer, Geert, and Monica Höfte. “Salicylic Acid Produced by the Rhizobacterium Pseudomonas Aeruginosa 7NSK2 Induces Resistance to Leaf Infection by Botrytis Cinerea on Bean.” PHYTOPATHOLOGY 87.6 (1997): 588–593. Print.