On the Putative Role of Microtubules in Gravitropism of Maize Coleoptiles

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概要

• 論文の詳細を見る

• The antimicrotubular drug ethyl-N-phenylcarbamate (EPC), at 1 to 10 mM, strongly inhibits gravitropism in coleoptiles of Zea mays L. Under the same conditions, phototropism remains essentially unimpaired. Propyzamide, a antimicrotubular drug specific for plant microtubules, at 0.02 to 0.2 mM causes qualitatively identical results, but to a weaker extent. Immunofluorescence data show that even only partial elimination of cortical microtubules in the outer epidermis is correlated with complete inhibition of gravitropism. Phototropism can proceed to some extent even after complete removal of cortical microtubules. Together with previous work the data indicate a complex role of the microtubular cytoskeleton in gravitropism: (1) late transduction of both, photo- and gravitropism and (2) early transduction of gravity, possibly by perceiving and transducing pressure or displacement of statoliths.

• 日本植物生理学会の論文

著者

• Furuya Masaki

  Frontier Research Programs Riken Institute

• Furuya Masaki

  Frontier Research Programs Riken

• Furuya Masaki

  Hitachi Advanced Research Laboratory

• Hertel Rainer

  Institutfur Biologie Ii-iii Der Universtitdt

• Nick Peter

  Frontier Research Program, Riken Institute

• Schafer Eberhard

  Institut fur Biologie II. Schdnzlestr

• Schafer Eberhard

  Institutfur Biologie Ii-iii Der Universtitdt

• Schafer Eberhard

  Institut Fur Biologie Ii Universitat Freiburg

• Nick P

  Inst. Fuer Botanik 1 Karlsruhe Deu

• Schaefer E

  Institutfur Biologie Ii-iii Der Universtitdt

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