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The salicylic acid-dependent defence pathway is effective against different pathogens in tomato and tobacco

EA Achuo, Kris Audenaert UGent, Hamid Meziane and Monica Höfte UGent (2004) PLANT PATHOLOGY. 53(1). p.65-72
abstract
The role of salicylic acid (SA) was investigated in basal defence and induced resistance to powdery mildew (Oidium neolycopersici) and grey mould (Botrytis cinerea) in tomato (Lycopersicon esculentum) and tobacco (Nicotiana tabacum). A comparison of NahG transgenic tomato and tobacco (unable to accumulate SA) to their respective wild types revealed that in tomato, SA was not involved in basal defence against O. neolycopersici but NahG tobacco showed an enhanced susceptibility to O. neolycopersici infection, the effect becoming more obvious as the plants grew older. In contrast, SA played no role in the basal defence of tobacco against B. cinerea, but seemed to contribute to basal defence of tomato against B. cinerea. Activation of the SA-dependent defence pathway via benzothiadiazole (BTH) resulted in induced resistance against O. neolycopersici in tobacco but not in tomato. Microscopic analysis revealed that BTH treatment could prevent penetration of the Oidium germ tube through tobacco leaves, whereas penetration was successful on tomato leaves irrespective of BTH treatment. In contrast, soil or leaf treatment with BTH induced resistance against B. cinerea in tomato but not in tobacco. It is concluded that the SA-dependent defence pathway is effective against different pathogens in tomato and tobacco.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
OIDIUM-LYCOPERSICI, DISEASE RESISTANCE, DICARBOXIMIDE FUNGICIDES, POWDERY MILDEW, BOTRYTIS-CINEREA, HOST-RANGE, OILSEED RAPE, HYPERSENSITIVE RESPONSE, F-SP TRITICI, benzothiadiazole, Botrytis cinerea, induced resistance, Lycopersicon esculentum, Nicotiana tabacum, Oidium neolycopersici, SYSTEMIC ACQUIRED-RESISTANCE
journal title
PLANT PATHOLOGY
Plant Pathol.
volume
53
issue
1
pages
65 - 72
Web of Science type
Article
Web of Science id
000188768000009
JCR category
AGRONOMY
JCR impact factor
1.467 (2004)
JCR rank
8/50 (2004)
JCR quartile
1 (2004)
ISSN
0032-0862
DOI
10.1111/j.1365-3059.2004.00947.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
211366
handle
http://hdl.handle.net/1854/LU-211366
date created
2004-04-16 16:25:00
date last changed
2016-12-19 15:38:16
@article{211366,
  abstract     = {The role of salicylic acid (SA) was investigated in basal defence and induced resistance to powdery mildew (Oidium neolycopersici) and grey mould (Botrytis cinerea) in tomato (Lycopersicon esculentum) and tobacco (Nicotiana tabacum). A comparison of NahG transgenic tomato and tobacco (unable to accumulate SA) to their respective wild types revealed that in tomato, SA was not involved in basal defence against O. neolycopersici but NahG tobacco showed an enhanced susceptibility to O. neolycopersici infection, the effect becoming more obvious as the plants grew older. In contrast, SA played no role in the basal defence of tobacco against B. cinerea, but seemed to contribute to basal defence of tomato against B. cinerea. Activation of the SA-dependent defence pathway via benzothiadiazole (BTH) resulted in induced resistance against O. neolycopersici in tobacco but not in tomato. Microscopic analysis revealed that BTH treatment could prevent penetration of the Oidium germ tube through tobacco leaves, whereas penetration was successful on tomato leaves irrespective of BTH treatment. In contrast, soil or leaf treatment with BTH induced resistance against B. cinerea in tomato but not in tobacco. It is concluded that the SA-dependent defence pathway is effective against different pathogens in tomato and tobacco.},
  author       = {Achuo, EA and Audenaert, Kris and Meziane, Hamid and H{\"o}fte, Monica},
  issn         = {0032-0862},
  journal      = {PLANT PATHOLOGY},
  keyword      = {OIDIUM-LYCOPERSICI,DISEASE RESISTANCE,DICARBOXIMIDE FUNGICIDES,POWDERY MILDEW,BOTRYTIS-CINEREA,HOST-RANGE,OILSEED RAPE,HYPERSENSITIVE RESPONSE,F-SP TRITICI,benzothiadiazole,Botrytis cinerea,induced resistance,Lycopersicon esculentum,Nicotiana tabacum,Oidium neolycopersici,SYSTEMIC ACQUIRED-RESISTANCE},
  language     = {eng},
  number       = {1},
  pages        = {65--72},
  title        = {The salicylic acid-dependent defence pathway is effective against different pathogens in tomato and tobacco},
  url          = {http://dx.doi.org/10.1111/j.1365-3059.2004.00947.x},
  volume       = {53},
  year         = {2004},
}

Chicago
Achuo, EA, Kris Audenaert, Hamid Meziane, and Monica Höfte. 2004. “The Salicylic Acid-dependent Defence Pathway Is Effective Against Different Pathogens in Tomato and Tobacco.” Plant Pathology 53 (1): 65–72.
APA
Achuo, EA, Audenaert, K., Meziane, H., & Höfte, M. (2004). The salicylic acid-dependent defence pathway is effective against different pathogens in tomato and tobacco. PLANT PATHOLOGY, 53(1), 65–72.
Vancouver
1.
Achuo E, Audenaert K, Meziane H, Höfte M. The salicylic acid-dependent defence pathway is effective against different pathogens in tomato and tobacco. PLANT PATHOLOGY. 2004;53(1):65–72.
MLA
Achuo, EA, Kris Audenaert, Hamid Meziane, et al. “The Salicylic Acid-dependent Defence Pathway Is Effective Against Different Pathogens in Tomato and Tobacco.” PLANT PATHOLOGY 53.1 (2004): 65–72. Print.