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Water Relations of Xerophilic Fungi Isolated from Prunes

机译：李子干菌的水分关系

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The predominant spoilage fungi of dried and high-moisture prunes were members of the Aspergillus glaucus group and Xeromyces bisporus. Chrysosporium spp. were also important. At the mean pH of prune flesh (3.8) and at 25 C, X. bisporus grew at water activities (aw) down to 0.605, and Chrysosporium fastidium grew to 0.686. Germination was always followed by growth, but within the 120-day incubation period, the minimum aw permitting asexual sporulation was usually higher than that permitting germination. Sexual sporulation often required an even higher aw. The water requirements of aspergilli were appreciably greater at this pH than near neutrality, no species germinating below 0.738 aw. This was probably a consequence of a high spore-death rate during incubation at low aw and pH.
机译：干燥和高水分的李子的主要变质真菌是青曲霉组和双孢干菌的成员。金孢属。也很重要在西梅肉的平均pH值（3.8）和25°C时，双孢蘑菇在水分活度下（aw）下降至0.605，而金孢孢霉的生长速度达到0.686。萌发总是伴随着生长，但是在120天的潜伏期内，允许无性孢子形成的最小aw通常高于允许发芽的最小aw。性孢子形成通常需要更高的aw。在此pH下，曲霉的需水量要比接近中性要大得多，在0.738 aw以下没有任何种子发芽。这可能是由于在低aw和pH下孵育期间孢子死亡率高的结果。

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