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Presymptomatic visualization of plant-virus interactions by thermography

Laury Chaerle UGent, Wim Van Caeneghem, Eric Messens UGent, Hans Lambers, Marc Van Montagu UGent and Dominique Van Der Straeten UGent (1999) NATURE BIOTECHNOLOGY. 17(8). p.813-816
abstract
Salicylic acid (SA), produced by plants as a signal in defense against pathogens, induces metabolic heating mediated by alternative respiration in flowers of thermogenic plants, and, when exogenously applied, increases leaf temperature in nonthermogenic plants. We have postulated that the latter phenomenon would be detectable when SA is synthesized locally in plant leaves. Here, resistance to tobacco mosaic virus (TMV) was monitored thermographically before any disease symptoms became visible on tobacco leaves. Spots of elevated temperature that were confined to the place of infection increased in intensity from 8 h before the onset of visible cell death, and remained detectable as a halo around the ongoing necrosis. Salicylic acid accumulates during the prenecrotic phase in TMV-infected tobacco and is known to induce stomatal closure in certain species. We show that the time course of SA accumulation correlates with the evolution of both localized thermal effect and stomatal closure. Since the contribution of leaf respiration is marginal, we concluded that the thermal effect results predominantly from localized, SA-induced stomatal closure. The presymptomatic temperature increase could be of general significance in incompatible plant-pathogen interactions.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SIGNAL, TEMPERATURE, INDUCTION, GENE-EXPRESSION, SALICYLIC-ACID, INFECTED TOBACCO, SYSTEMIC ACQUIRED-RESISTANCE, TOBACCO MOSAIC-VIRUS, infrared thermography, plant-pathogen interaction, respiration, salicylic acid, TMV tobacco, transpiration, RESPIRATION, HYDROXYLASE
journal title
NATURE BIOTECHNOLOGY
Nat. Biotechnol.
volume
17
issue
8
pages
813 - 816
Web of Science type
Article
Web of Science id
000081751400034
ISSN
1087-0156
DOI
10.1038/11765
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
112528
handle
http://hdl.handle.net/1854/LU-112528
date created
2004-01-14 13:35:00
date last changed
2013-10-16 17:12:51
@article{112528,
  abstract     = {Salicylic acid (SA), produced by plants as a signal in defense against pathogens, induces metabolic heating mediated by alternative respiration in flowers of thermogenic plants, and, when exogenously applied, increases leaf temperature in nonthermogenic plants. We have postulated that the latter phenomenon would be detectable when SA is synthesized locally in plant leaves. Here, resistance to tobacco mosaic virus (TMV) was monitored thermographically before any disease symptoms became visible on tobacco leaves. Spots of elevated temperature that were confined to the place of infection increased in intensity from 8 h before the onset of visible cell death, and remained detectable as a halo around the ongoing necrosis. Salicylic acid accumulates during the prenecrotic phase in TMV-infected tobacco and is known to induce stomatal closure in certain species. We show that the time course of SA accumulation correlates with the evolution of both localized thermal effect and stomatal closure. Since the contribution of leaf respiration is marginal, we concluded that the thermal effect results predominantly from localized, SA-induced stomatal closure. The presymptomatic temperature increase could be of general significance in incompatible plant-pathogen interactions.},
  author       = {Chaerle, Laury and Van Caeneghem, Wim and Messens, Eric and Lambers, Hans and Van Montagu, Marc and Van Der Straeten, Dominique},
  issn         = {1087-0156},
  journal      = {NATURE BIOTECHNOLOGY},
  keyword      = {SIGNAL,TEMPERATURE,INDUCTION,GENE-EXPRESSION,SALICYLIC-ACID,INFECTED TOBACCO,SYSTEMIC ACQUIRED-RESISTANCE,TOBACCO MOSAIC-VIRUS,infrared thermography,plant-pathogen interaction,respiration,salicylic acid,TMV tobacco,transpiration,RESPIRATION,HYDROXYLASE},
  language     = {eng},
  number       = {8},
  pages        = {813--816},
  title        = {Presymptomatic visualization of plant-virus interactions by thermography},
  url          = {http://dx.doi.org/10.1038/11765},
  volume       = {17},
  year         = {1999},
}

Chicago
Chaerle, Laury, Wim Van Caeneghem, Eric Messens, Hans Lambers, Marc Van Montagu, and Dominique Van Der Straeten. 1999. “Presymptomatic Visualization of Plant-virus Interactions by Thermography.” Nature Biotechnology 17 (8): 813–816.
APA
Chaerle, L., Van Caeneghem, W., Messens, E., Lambers, H., Van Montagu, M., & Van Der Straeten, D. (1999). Presymptomatic visualization of plant-virus interactions by thermography. NATURE BIOTECHNOLOGY, 17(8), 813–816.
Vancouver
1.
Chaerle L, Van Caeneghem W, Messens E, Lambers H, Van Montagu M, Van Der Straeten D. Presymptomatic visualization of plant-virus interactions by thermography. NATURE BIOTECHNOLOGY. 1999;17(8):813–6.
MLA
Chaerle, Laury, Wim Van Caeneghem, Eric Messens, et al. “Presymptomatic Visualization of Plant-virus Interactions by Thermography.” NATURE BIOTECHNOLOGY 17.8 (1999): 813–816. Print.