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1 December 2011 Effects of Environmental Factors on Dimorphic Transition of the Jelly Mushroom Tremella Fuciformis
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Abstract

Tremella fuciformis, a typical dimorphic fungus, displays two distinct morphological transitions: (i) yeast-pseudohyphae transition; (ii) yeast-hyphae transition. To understand the mechanism of its dimorphism, we initiated a study by investigating how environmental factors affect the yeast-to-pseudohypha transition, including pH value, temperature, carbon source, nitrogen source, cultural time, ethanol and inoculum size. Our studies showed that the optimal conditions for yeast-to-pseudohypha transition were as follows: incubating at 25 to 30°C for 3 to 7 days in media containing glucose as the carbon source, ammonium as the nitrogen source and 10 ml/L ethanol. Below a threshold of inoculum size (105 cells/L), the transition ratio fluctuated markedly, which made us propose that quorum sensing molecules contribute to the dimorphic behavior in T. fuciformis.

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Lihua Hou, Yi Chen, Chengjie Ma, Juan Liu, Chen Liguo, and Aimin Ma "Effects of Environmental Factors on Dimorphic Transition of the Jelly Mushroom Tremella Fuciformis," Cryptogamie, Mycologie 32(4), 421-428, (1 December 2011). https://doi.org/10.7872/crym.v32.iss4.2011.421
Published: 1 December 2011
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