The impact of sulfur dioxide on plant sexual reproduction: in vivo and in vitro effects compared

Journal Article · Fri Dec 31 23:00:00 EST 1982 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1983.00472425001200010027x· OSTI ID:5744044

DuBay, D T ^[1]; Murdy, W H

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1. Air Quality Field Lab., Raleigh, NC

In Lepidium virginicum L., exposure of pollen to 0.6 ppm sulfur dioxide (SO/sub 2/) for 4 h reduced pollen germination in vitro 94% from the control, whereas exposure to 0.6 ppm SO/sub 2/ for 2, 4, and 8 h during flowering reduced pollen germination in vivo 50% from the control, but did not affect seed set.An interaction between SO/sub 2/ and water may have caused the inhibition of pollen germination in a liquid culture medium, as well as on the moist surface of an intact stigma. However, the results suggest that the use of pollen germination and pollen tube elongation in vitro to asses the direct effects of SO/sub 2/ on plant sexual reproduction in vivo is not valid.

• OSTI ID: 5744044
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 12:1; ISSN JEVQA
• 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
GAMETES
GERM CELLS
GERMINATION
IN VITRO
IN VIVO
INHIBITION
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLLEN
REPRODUCTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WEEDS