Highlights
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Blue light is a must for primordia induction of C. militaris fruiting bodies.
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Primordia induction were completely inhibited in the dark, red and far-red lights.
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Red LED increases cordycepin content in fruiting bodies.
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Blue LED increases carotenoids content in fruiting bodies.
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Red: blue 2:1 with 10% far-red is the best for C. militaris culture.