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Pollen tube extract supports the movement of actin filaments in vitro

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Summary

Muscle actin filaments labeled with rhodamine-phalloidin were observed to move on the surface coated with a crude extract of pollen tubes ofLilium longiflorum with an average velocity of 1.99±0.55 μm/sec. The movement required both Mg2+ and ATP. These results indicate that the extract of pollen tubes contains a myosin-like translocator

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Abbreviations

ATP:

adenosine-5′-triphosphate

DTT:

dithiothreitol

EGTA:

ethyleneglycol-bis-(β-aminoethylether)N,N,N′,N′-tetraacetic acid

PIPES:

piperazine-N,N′-bis-(2-ethanesulfonic acid)

PMSF:

phenylmethylsulfonyl fluoride

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Kohno, T., Okagaki, T., Kohama, K. et al. Pollen tube extract supports the movement of actin filaments in vitro. Protoplasma 161, 75–77 (1991). https://doi.org/10.1007/BF01328900

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  • DOI: https://doi.org/10.1007/BF01328900

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