Journal Article

Cytochalasin A Inhibits the Binding of Phenylalanine Ammonia-Lyase mRNA to Ribosomes during induction of Phytoalexin in Pea Seedlings

Megumi Sugimoto, Kazuhiro Toyoda, Yuki Ichinose, Yamada Tetsuji and Tomonori Shiraishi

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 41, issue 2, pages 234-238
Published in print February 2000 | ISSN: 0032-0781
Published online February 2000 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/41.2.234
Cytochalasin A Inhibits the Binding of Phenylalanine Ammonia-Lyase mRNA to Ribosomes during induction of Phytoalexin in Pea Seedlings

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Cytochalasin A (CA) blocked the accumulation of phytoalexin and phenylalanine ammonia-lyase (PAL)-protein in pea tissues treated with a fungal elicitor but scarcely affected the PAL-mRNA content. Further analysis showed that CA decreased the PAL-mRNA bound to ribosomes. These results indicate that actin filaments are tightly associated with the translational process of the PAL gene.

Keywords: Actin filament; Elicitor; Phenylalanine ammonia-lyase (PAL); Pea (Pisum sativum L.); Phytoalexin; Polysome-bound mRNA

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Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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