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. 1976 Jan;73(1):165-7.
doi: 10.1073/pnas.73.1.165.

Polarity of actin filaments in Characean algae

Y M Kersey, P K Hepler, B A Palevitz, N K Wessells

Polarity of actin filaments in Characean algae

Y M Kersey et al. Proc Natl Acad Sci U S A. 1976 Jan.

Abstract

Heavy meromyosin from rabbit muscle combines with oriented Nitella and Chara actin in vitro to form arrowhead structures directed opposite to the cytoplasmic flow in the living plant cell. All filaments and all bundles of filaments in the apically directed stream are similarly oriented; polarity with respect to the axis of the thallus is reversed in the downward stream. The actin filaments are attached to the chloroplasts at the ectoplasm-endoplasm interface, where the motive force for streaming is known to be generated.

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References

    1. J Cell Biol. 1975 Apr;65(1):29-38 - PubMed
    1. J Ultrastruct Res. 1966 Mar;14(5):571-89 - PubMed
    1. Proc Natl Acad Sci U S A. 1974 Feb;71(2):363-6 - PubMed

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