| Accession number;01A0260699 |
| Title;The biological meaning of the nyctinasty. Why nyctinastic plants sleep? |
| Author;SAWAI YOSHIYUKI(Keio Univ., Fac. of Sci. and Technol.) UEDA MINORU(Keio Univ., Fac. of Sci. and Technol.) YAMAMURA SHOSUKE(Keio Univ., Fac. of Sci. and Technol.) |
Journal Title;Nippon Kagakkai Koen Yokoshu
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Journal Code:S0493A
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ISSN:0285-7626
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VOL.78th;NO.2;PAGE.892(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Most leguminous plants close their leaves at night and open them again the morning. This leaf-movement, controlled by a biological clock, is called nyctinasty. Why nyctinastic plants sleep? This has been a difficult problem which has bothered many great scientists. We discovered that the leaf kept opening for a week by the addition of potassium galactolespedezate, an artificial leaf-opening substance, has withered up to die. This result suggests that nyctinastic leaf-movement is indispensable for the survival of leguminous plants and significantly related to the moisture control. (author abst.) |
