Summary
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1.
The structure and plugging of septa of several Neurospora crassa strains were studied.
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2.
Septa were occluded by an electron dense plug. Woronin bodies were never observed.
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3.
Nearly all the septa found within the peripheral 0.5 to 1.0 mm of colonies of spco 12 were plugged but plugged septa were never observed in cot 3 and only rarely in spco 4, even 11 mm from the colony's circumference.
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4.
Lines of vesicles were observed in the cytoplasm and traversing the septal pores of spco 1 hyphae. The mean diameter of these vesicles and the vesicles found at the hyphal tip were identical.
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Trinci, A.P.J., Collinge, A.J. Structure and plugging of septa of wild type and spreading colonial mutants of Neurospora crassa . Archiv. Mikrobiol. 91, 355–364 (1973). https://doi.org/10.1007/BF00425054
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DOI: https://doi.org/10.1007/BF00425054