Effect of ozone and ozonated 1-hexene on respiration and photosynthesis of leaves

Journal Article · Wed Jan 01 04:00:00 UTC 1958 · Plant Physiol. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1104/pp.33.6.416· OSTI ID:5434553

Todd, G W

The treatment of Pinto bean leaves with either ozone or ozonated hexene gas in air caused a rise in the respiration rate up to more than four times that of untreated control leaves. Plant responses to the two gases were similar. The rate of photosynthesis of treated bean leaves was less than that of controls. Both the amounts of stimulation of respiration and the inhibition of photosynthesis were directly related to the development of visible injury symptoms in certain tissues of the bean leaves. No stimulation of bean leaf respiration or inhibition of photosynthesis occurred unless visible injury developed. However, ozone caused a rise in the respiration rate of Valencia orange leaves with no concomitant development of visible injury. Citrus leaves gave no response until ozone concentrations approached those required to produce visible injury symptoms. Treatment with ozonated hexene at concentrations eliciting changes in respiration and photosynthesis in bean leaves caused no change in these processes in citrus leaves. A comparison of ozone- and ozonated hexene-treated bean leaves showed that the respiratory quotients were not different from that of the control leaves. 9 references, 3 figures, 2 tables.

• Research Organization: Univ. of California Citrus Experiment Station, Riverside
• OSTI ID: 5434553
• Journal Information: Plant Physiol. (Engl. Transl.); (United States), Journal Name: Plant Physiol. (Engl. Transl.); (United States) Vol. 33:6; ISSN PPHYA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ALKENES
CHEMICAL REACTIONS
CITRUS
FOOD
FRUITS
HEXENES
HYDROCARBONS
INHIBITION
LEAVES
LEGUMINOSAE
METABOLISM
ORANGES
ORGANIC COMPOUNDS
OZONE
PHASEOLUS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
POLLUTION
RESPIRATION
RESPONSE MODIFYING FACTORS
SYNTHESIS
TOXICITY