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The spatial aspects of fungal growth

D. H. Jennings
Science Progress (1933-)
Vol. 75, No. 1/2 (297) (1991), pp. 141-156
Stable URL: http://www.jstor.org/stable/43421265
Page Count: 16
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The spatial aspects of fungal growth
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Abstract

Fungi can be grown in culture as microbes, yet an understanding of how a fungal mycelium grows is helped by knowledge of green plant physiology. The essential difference between the morphology of most bacteria and a fungus, is that the latter produces a branching colony. The arrangement of hyphae in that colony is governed by oxygen supply, although it may be pH which is sensed. The acquisition of nutrients by the inner part of the colony is aided by accumulation, diffusion and possibly water flow in the hyphae. When the carbon substrates are located at a point source, there is translocation of nutrients through the mycelium. Evidence suggests that the integration of a fungal colony is not hormonal. Initially, colony development is a stochastic process but in large colonies, and in mycelia forming organized structures, it is likely that water relations determine functioning of the organized colony.

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