Effects of Selenium and Light Wavelengths on Liquid Culture of <Emphasis Type="Italic">Cordyceps militaris</Emphasis> Link |
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Authors: | J Z Dong M R Liu C Lei X J Zheng Y Wang |
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Institution: | (1) Key Laboratory of Biologic Resources Protection and Utilization of Hubei Province, School of Biological Science and Technology, Hubei University for Nationalities, Enshi, 445000, China;(2) Key Laboratory of Pant Germplasm Enhancement and Speciality Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China |
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Abstract: | To investigate the effects of selenium and light wavelengths on the growth of liquid-cultured Cordyceps militaris and the main active components’ accumulation, culture conditions as selenium selenite concentrations and light of different
wavelengths were studied. The results are: adenosine accumulation proved to be significantly selenium dependent (R
2 = 0.9403) and cordycepin contents were determined to be not significantly selenium dependent (R
2 = 0.3845) but significantly enhanced by selenium except for 20 ppm; there were significant differences in cordycepin contents,
adenosine contents, and mycelium growth caused by light wavelengths: cordycepin, blue light > pink light > daylight, darkness,
red light; adenosine, red light > pink light, darkness, daylight, blue light; and mycelium growth, red light > pink light,
darkness, daylight > blue light. In conclusion, light wavelength had a significant influence on production of mycelia, adenosine,
and cordycepin, so lightening wavelength should be changed according to target products in the liquid culture of C. militaris. |
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