Intercellular Transport and Cytoplasmic Streaming in Chara hispida
The correlation between the velocities of cytoplasmic streaming and of translocation of 14C-photosynthate and 32P-phosphate associated radioactivity has been investigated in whole plants of the green freshwater alga Chara hispida L. Tracer was supplied to the plant's rhizoid system in a split-c...
| Published in: | Journal of Experimental Botany |
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| Main Authors: | , , |
| Format: | Text |
| Language: | English |
| Published: |
Oxford University Press
1984
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| Subjects: | |
| Online Access: | http://jxb.oxfordjournals.org/cgi/content/short/35/7/1016 https://doi.org/10.1093/jxb/35.7.1016 |
| Summary: | The correlation between the velocities of cytoplasmic streaming and of translocation of 14C-photosynthate and 32P-phosphate associated radioactivity has been investigated in whole plants of the green freshwater alga Chara hispida L. Tracer was supplied to the plant's rhizoid system in a split-chamber. The velocity of cytoplasmic streaming of 52±3.3 μm s−1 compares with 57±10 μm s−1 found for 14C-transport and 32±20 μm s−1 found for 32P-transport. There was no indication of intercellular translocation at a velocity faster than visible streaming. Cytochalasin B inhibited the translocation of 32P and cytoplasmic streaming. Cytochalasin B becomes fully effective in inhibiting streaming and transport after an incubation time of at least 5 h. |
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