Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Tomato response to concurrent and sequential NO2 and O3 exposures.

S N Goodyear1, D P Ormrod

  • 1Department of Horticultural Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1.

Environmental Pollution (Barking, Essex : 1987)
|January 1, 1988
PubMed
Summary

Tomato plants exposed to combined nitrogen dioxide (NO2) and ozone (O3) showed reduced growth, indicating a synergistic effect. Sequential exposures also impacted plant development, suggesting current air quality standards may be insufficient.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effects of pre-exposure to ultraviolet-B radiation on responses of tomato (Lycopersicon esculentum cv. New Yorker) to ozone in ambient and elevated carbon dioxide.

Environmental pollution (Barking, Essex : 1987)·2004
Same author

Influence of salicylic acid on H2O2 production, oxidative stress, and H2O2-metabolizing enzymes. Salicylic acid-mediated oxidative damage requires H2O2.

Plant physiology·1997
Same author

The influence of photosynthetically active radiation on the effects of ultraviolet-B radiation on Arabidopsis thaliana.

Photochemistry and photobiology·1996
Same author

Ultraviolet-B- and ozone-induced biochemical changes in antioxidant enzymes of Arabidopsis thaliana.

Plant physiology·1996
Same author

Ozone exposure decreases UVB sensitivity in a UVB-sensitive flavonoid mutant of Arabidopsis.

Photochemistry and photobiology·1995
Same author

Responses of greening bean seedling leaves to nitrogen dioxide and nutrient nitrate supply.

Environmental pollution (Barking, Essex : 1987)·1994

Area of Science:

  • Plant Science
  • Environmental Science
  • Toxicology

Background:

  • Air pollutant concentrations, including nitrogen dioxide (NO2) and ozone (O3), fluctuate diurnally, leading to complex plant exposure patterns.
  • Understanding plant responses to concurrent and sequential pollutant exposures is crucial for assessing environmental impacts.

Purpose of the Study:

  • To determine the effects of concurrent and sequential exposures to NO2 and O3 on tomato plant growth.
  • To compare the impacts of single versus combined pollutant exposures at different plant developmental stages.

Main Methods:

  • Tomato plants at the 4-6 or 9-11 leaf stage were exposed to controlled levels of NO2 and O3.
  • Treatments included concurrent (1-hour NO2 + O3) and sequential exposures (NO2-O3, O3-NO2, NO2(N)-O3(D)).

Related Experiment Videos

  • Growth parameters such as leaf and stem fresh/dry weights and leaf area were measured.

    • Main Results:

    • Concurrent NO2 + O3 exposure significantly reduced leaf and stem fresh weights in 4-6 leaf stage plants, indicating a coalitive (synergistic) response.
    • Single pollutant exposures did not significantly reduce these growth parameters compared to controls.
    • Sequential O3-NO2 exposure significantly reduced leaf area and fresh/dry weights of leaves and stems in 4-6 leaf stage plants.

    Conclusions:

    • Combined NO2 and O3 exhibit a coalitive effect on tomato plant growth, suggesting that single-pollutant air quality standards may be inadequate.
    • Sequential exposures, particularly O3 followed by NO2, also negatively impact plant development.
    • The timing of pollutant exposure is important, and ambient exposure patterns should be considered in air quality assessments.