Title of article :
Photosynthetic plasticity of Phalaenopsis in response to different light environments
Author/Authors :
Ming-Ju Lin، نويسنده , , Ban-Dar Hsu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
10
From page :
1259
To page :
1268
Abstract :
The ability of a plant to dynamically acclimate to different light environments is, in general, genetically determined. Phalaenopsis amabilis is a CAM orchid with heavy self-shading. The aim of this study was to find out how the photosynthetic capacity of its mature lower leaves acclimates to the low light environment, and whether it possessed a potential for reacclimation following transfer of lower leaves to higher irradiance. We found that the photosynthetic performance of the leaves of Phalaenopsis was flexibly and reversibly adjusted to growth irradiance, making it possible to improve the light environment of the plant by increasing light exposure of lower leaves and bring about a higher photosynthetic production. We have tested the effectiveness of a simple setup using mirrors to augment light from the side and thus enhanced the irradiance in the shaded area of the plant. Both photosynthesis and starch contents of leaves as well as the number of flowers per plant increased greatly.
Keywords :
Phalaenopsis , Photosynthetic production , Chlorophyll fluorescence , Light environment
Journal title :
Journal of Plant Physiology
Serial Year :
2004
Journal title :
Journal of Plant Physiology
Record number :
1278787
Link To Document :
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