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The composition of the polyol pools in Aspergillus nidulans mycelium during active growth on sucrose depends strongly on pH. At pH 2.5, only mannitol is present. A comparison between nitrate- and ammonium-grown cultures shows stimulation of the arabitol content with nitrate a former nitrogen source. When starved mycelium is incubated either with natural-abundance or 13C-enriched glucose, label appears rapidly in mannitol and arabitol, regardless of the nitrogen source or the pH used.
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Dijkema et al. (1986) studied this question.
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