Growth Promotion of Vegetative Gametophytes of <Emphasis Type="Italic">Undaria pinnatifida</Emphasis> by Blue Light |
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Authors: | Email author" target="_blank">Zhang?XuEmail author Li?Dapeng Hu?Hanhua Tan?Tianwei |
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Institution: | (1) Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, 100029 Beijing, China;(2) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(3) Institute of Hydrobiology, The Chinese Academy of Sciences, 430072 Wuhan, China |
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Abstract: | Through an acclimation period of 10 days, compared to white light, the maximal net photosynthetic rates were significantly
higher for gametophytes of Undaria pinnatifida cultivated under blue light (400–500 nm), and were lower under red light (600–700 nm). Chlorophyll c and the carotenoid content of gametophytes were similar under blue light and red light but were much lower under white light.
The growth rate of female gametophytes under blue light was higher than that under other lights, and the growth rate of male
gametophytes showed little variation with respect to blue and white light. Male and female gametophytes were mixed together
to form sporophytes under white, blue and red light. After approximately 5 days, 50% gametophytes became fertile under blue
and white light, but remained vegetative under red light after 10 days. |
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Keywords: | chromatic adaptation gametophytes light effects Undaria pinnatifida |
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