Abstract
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1.
The total nitrogen content of spores of Penicillium notatum increased during swelling and reached a maximum before germ-tubes were formed. It subsequently decreased during germ-tube formation until a constant value in hyphae was reached.
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2.
An increase in the protein content of the spores was found during swelling, followed by a decrease when germ-tubes were formed. After germination, the protein content increased again to a constant level in hyphae.
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3.
The content of total lipids steadily decreased during swelling of spores. It reached a minimum value in germinating spores, followed by a net accumulation during hyphal growth. Similar changes occurred in free lipids, phospholipids and the acetone-soluble lipids but not in bound lipids.
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4.
After an initial decrease during swelling, no further change took place in the neutral carbohydrates content of the spores at the time of germ-tube formation. An accumulation of neutral carbohydrates occurred during late hyphal extension.
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5.
The nucleic acid content increased sharply during swelling, and reached the highest value in swollen spores just prior to the initiation of germ-tube formation. Afterwards, its content steadily decreased during germ-tube formation and hyphae elongation.
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Martin, J.F., Liras, P. & Villanueva, J.R. Changes in composition of conidia of Penicillium notatum during germination. Arch. Microbiol. 97, 39–50 (1974). https://doi.org/10.1007/BF00403043
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DOI: https://doi.org/10.1007/BF00403043