Phototropism in Vaucheria geminata II. The mechanism of bending and branching :

• Kataoka,Hironao

  Department of Biology, Faculty of Science, Osaka University

抄録

The mechanism of phototropic bending and branching in Vaucheria geminata was analyzed. Using the half-side-illumination method it was shown that phototropic bending is initiated by the formation of a new growth center on the illuminated side of the apical dome of the tube, not by the difference in growth rate between the lighted and shaded sides of the tip. Branching was also initiated when the part proximal to the apical dome was illuminated. Blue light was effective for branching as it was for photo-tropic bending. The refractive indices measured at the growing tip and an area other than the tip were 1.36 and 1.34 respectively. A hyaline patch resembling the hyaline cap, which appeared prior to the onset of tip-growth in the apical dome, was invariably formed shortly before the initiation of a new branch at the illuminated locus.

収録刊行物

• Plant and cell physiology

  Plant and cell physiology 16 (3), 439-448,

  Japanese Society of Plant Physiologists

詳細情報

• CRID: 1543387470127198464
• NII論文ID: 110003716972
• NII書誌ID: AA0077511X
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10766853
• 本文言語コード: en
• データソース種別:
  • NDL-Digital
  • CiNii Articles