Barotolerance is dependent on both trehalose and heat shock protein 104 but is essentially different from thermotolerance in Saccharomyces cerevisiae |
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| Authors: | H. Iwahashi,K. Obuchi,S. Fujii,& Y. Komatsu |
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| Affiliation: | National Institute of Bioscience and Human Technology, Agency of Industrial Science and Technology, Tsukuba, Ibaraki, Japan |
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| Abstract: | The contribution of trehalose and hsp104 to barotolerance in Saccharomyces cerevisiae has been investigated. Mutant strains, which lacked the ability to accumulate trehalose and/or hsp104, were examined for barotolerance and thermotolerance. All the mutants showed lower barotolerance and thermotolerance than their control strains. Trehalose had a greater protective effect towards high pressure than high temperature. Thus, trehalose and hsp104 are important factors for barotolerance and thermotolerance, but trehalose is more important for barotolerance than for thermotolerance. |
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