The effect of the external medium on the gravity-induced polarity of cytoplasmic streaming in Chara corallina (Characeae).

@article{Staves1997TheEO,
  title={The effect of the external medium on the gravity-induced polarity of cytoplasmic streaming in Chara corallina (Characeae).},
  author={M. Staves and R. Wayne and A. Leopold},
  journal={American journal of botany},
  year={1997},
  volume={84 11},
  pages={
          1516-21
        }
}
Gravity induces a polarity of cytoplasmic streaming in vertical internodal cells of Chara such that the downwardly directed stream moves faster than the upwardly directed stream. In order to determine whether the statolith theory (in which intracellular sedimenting particles are responsible for gravity sensing) or the gravitational pressure theory (in which the entire protoplast acts as the gravity sensor) best explain the gravity response in Chara internodal cells, we controlled the physical… Expand
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