Journal Article

Induction of a New Alkaline Band at a Target Position in Internodal Cells of <i>Chara corallina</i>

Teruo Shimmen and Ako Yamamoto

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 43, issue 9, pages 980-983
Published in print September 2002 | ISSN: 0032-0781
Published online September 2002 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcf116
Induction of a New Alkaline Band at a Target Position in Internodal Cells of Chara corallina

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Characean cells develop alternating alkaline and acid bands on their surface upon illumination. However, the mechanism of band formation is not fully understood. In the present study, we succeeded in inducing a new alkaline band at an original acid band in internodal cells of Chara corallina. Chloroplasts in an acid band were locally removed by wounding the cell in the absence of the cell turgor pressure. The chloroplast-removed area was observed as a white belt in a green cylindrical internodal cell. This internodal cell developed a new alkaline band on the surface at the chloroplast-removed area. The narrower the chloroplast-removed area, the less significant the extent of OH extrusion. This is the first success in inducing a new alkaline band at a target position in Characeae.

Keywords: Keywords: Alkaline band — Chara — Chloroplast — Membrane potential — Photosynthesis — Wounding.; Abbreviations: APW, artificial pond water; BFS, band formation solution; Em, membrane potential.

Journal Article.  2390 words.  Illustrated.

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

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