Summary
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1.
The colony radial growth rates (K r) of wild type and spreading colonial mutants (spco) of Neurospora crassa were found to be a function of the strain's specific growth rate (α) and the width (w) of the colony's peripheral growth zone.
$$K_\tau = \alpha w$$ -
2.
Except for one wild type strain and a temperature sensitive mutant (cot 3), all the 20 strains studied had approximately the same maximum specific growth rate.
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3.
The width of the peripheral growth zones of the strains varied from 493 to 6800 μm.
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4.
There was a direct relationship between the colony radial growth rates of the strains and the diameter and hyphal compartment (apical and intercalary) length of their leading hyphae.
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5.
The radial growth rate of spco 4 colonies increased linearly with medium depth.
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Trinci, A.P.J. Growth of wild type and spreading colonial mutants of Neurospora crassa in batch culture and on agar medium. Archiv. Mikrobiol. 91, 113–126 (1973). https://doi.org/10.1007/BF00424755
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DOI: https://doi.org/10.1007/BF00424755