Abstract
Fumigation with 0.05 μl/l SO2 decreased the germination rate of fern spores ofAdiantum capillus-veneris L. and influenced greatly the rhizoid development for abnormities such as apical swelling. Even 10 μM sulfite derived from SO2 fumigation was influential. These SO2 effects on germination and following rhizoid development were proved to be independent of each other, and could be induced separately by pulse treatment with K2SO3 solution given at different timings. According to the analysis using a time-lapse video recorder, growth retardation and apical swelling of rhizoid occurred just after the application of sulfite. It became clear that the fern gametophytes are very sensitive to SO2, (that is sulfite) as compared with other plants used for air pollutant experiments so far.
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Wada, M., Shimizu, H. & Kondo, N. A model system to study the effect of SO2 on plant cells. Bot. Mag. Tokyo 100, 51–62 (1987). https://doi.org/10.1007/BF02488420
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DOI: https://doi.org/10.1007/BF02488420