著者

Goring H. Bless W. Schenk D. Kretschmer H.

出版者

一般社団法人日本植物生理学会

雑誌

Plant and cell physiology (ISSN:00320781)

巻号頁・発行日

vol.19, no.5, pp.833-838, 1978-08

被引用文献数

1

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The detectability of stored growth at various elongation rates (IAA- and acid-induced) was investigated in 5-mm wheat coleoptile segments. After 20 min turgor reduction by 0.15 M or 0.20 M mannitol, the detectability of stored growth depended on the elongation rate before turgor reduction. A hypothesis was proposed that the amount of stored growth is limited. Depending on the elongation rate, this then appears as complete or partial compensation of the growth lost during turgor reduction. The limit for full compensation was about 300 μm/hr・segment. At elongation rates of > 600 μm/hr・segment, no stored growth could be detected. The elongation of the wheat coleoptile sections at low and high elongation rates is assumed to be limited by different rate-determining steps.