Response of soybean foliage to reciprocal challenges by ozone and a hypersensitive-response-inducing pseudomonad

Journal Article · Tue Nov 01 04:00:00 EST 1977 · Phytopathology; (United States)

DOI:https://doi.org/10.1094/Phyto-67-1342· OSTI ID:6858151

Pell, E J; Lukezic, F L; Levine, R G; Weissberger, W C

The extent to which an inoculation of soybean foliage with hypersensitive response-inducing bacteria would ameliorate subsequent ozone challenge and the extent to which exposure of soybean foliage to ozone would alter subsequent challenge with hypersensitive response-inducing bacteria are examined. Materials and methods used are described. Primary leaves of soybean inoculated with a concentration of bacteria elicited a low level of hypersensitive response, and were subsequently challenged with an ozone dose that induced a severe water-soaking symptom in noninoculated foliage. Leaves inoculated with bacteria 24 hr prior to ozone exposure displayed an enhanced response. Soybean plants were exposed to a dose of ozone that elicited a slight flecking response and inoculated 24, 48, 96, 144, and 168 hr after exposure with bacterial concentrations sufficient to cause severe hypersensitive response. Ozone treated plants did not display the bacteria-induced hypersensitive response at any inoculation times. 26 references, 3 tables.

• Research Organization: Pennsylvania State Univ
• OSTI ID: 6858151
• Journal Information: Phytopathology; (United States), Journal Name: Phytopathology; (United States) Vol. 66:11; ISSN PHYTA
• Country of Publication: United States
• Language: English

Related Subjects

560302 -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACTERIA
BIOLOGICAL EFFECTS
ENVIRONMENTAL EFFECTS
FOOD
LEAVES
MICROORGANISMS
OZONE
PLANTS
PSEUDOMONAS
RESPONSE MODIFYING FACTORS
SENSITIVITY
SOYBEANS
VEGETABLES