Factors influencing expression of oxidant damage to plants

Journal Article · Mon Jan 01 04:00:00 EST 1968 · Annu. Rev. Phytopathol.; (United States)

DOI:https://doi.org/10.1146/annurev.py.06.090168.001121· OSTI ID:5552667

Heck, W W

This paper suggests that the mechanism that controls resistance of plants to oxidant pollutants may be similar to the one that controls resistance to other extremes in environmental factors. From the literature the following generalizations can be made in regard to the factors that affect the sensitivity of plants to oxidant air pollutants during growth: plants are more sensitive when grown under a short photo-period, a long dark period prior to exposure increases sensitivity; plants grown under low light intensities are more sensitive to ozone and less sensitive to PAN; low temperatures for one to several days prior to exposure reduce sensitivity; plants grown under drought conditions are less sensitive; plants grown under relatively low fertility levels are more sensitive. Sensitivity at time of exposure increases with increasing light intensity. Sensitivity of plants exposed under natural conditions is affected more by light intensity than by temperature. Temperature has an inverse effect on sensitivity, when plants are exposed under controlled lighting conditions. High carbon dioxide levels, at time of exposure, reduce sensitivity. Plants exposed under any soil conditions that produce a water stress in the plant show an increased resistance. Plant sensitivity, at time of exposure, increases with an increase in humidity. Injury from PAN is mediated by a light-sensitive system within the plant. Sulfur dioxide reacts synergistically, with both ozone and nitrogen dioxide, on sensitive plant tissues. 101 references.

• Research Organization: Dept. of Health, Education and Welfare, Cincinnati, OH
• OSTI ID: 5552667
• Journal Information: Annu. Rev. Phytopathol.; (United States), Journal Name: Annu. Rev. Phytopathol.; (United States) Vol. 6; ISSN APPYA
• 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.
BIOLOGICAL EFFECTS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
DEHYDRATION
DOCUMENT TYPES
ESTERS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PEROXYACETYL NITRATE
PHOTOCHEMICAL OXIDANTS
PLANTS
RESPONSE MODIFYING FACTORS
REVIEWS
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES