Establishment of photoperiodic sensitivity by benzyladenine and a brief red irradiation in dark grown seedlings of Pharbitis nil Chois.

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概要

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• Flowering of etiolated seedlings of Pharbitis nil resulted following a single, brief red irradiation prior to an inductive dark period. Following this irradiation benzyladenine sprayed on the seedlings enhanced flowering dramatically and this effect was maximal for concentrations between 44 and 120 μ_M. In the presence of benzyladenine a brief (4 to 10 sec) low energy red irradiation (2.6 Wm^<-2>) resulted in flowering and repeated far-red photoreversal of this red promotion provided clear evidence of the sole involvement of phytochrome. However, after such brief irradiations the critical dark period for flowering was longer than is normally found in seedlings grown in light which indicated that additional photoresponses might be important in natural conditions. An examination of seedling photosynthesis and assimilate transport indicated that the benzyladenine effect on flowering may relate to its promotion of assimilate and floral stimulus transport to the shoot apex.

• 日本植物生理学会の論文

著者

• King R.w.

  Csiro Division Of Plant Industry

• Ogawa Y

  CSIRO Division of Plant Industry

関連論文

• Flowering in seedlings of Pharbitis nil induced by benzyladenine applied under a non-inductive daylength
• Establishment of photoperiodic sensitivity by benzyladenine and a brief red irradiation in dark grown seedlings of Pharbitis nil Chois.

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