Carbon catabolism and synthesis of macromolecules during spore germination of Microsporum gypseum.

Journal of Bacteriology
I BarashD H Howard

Abstract

Either d- or l-leucine (10(-3)m) and unsaturated long-chain fatty acids such as oleic, linoleic, and arachidonic (10(-4)m) significantly stimulated macroconidia germination of Microsporum gypseum. Saturated long-chain fatty acids did not affect germination, whereas saturated short-chain fatty acids such as caprylic, hexanoic, and butyric were completely inhibitory. Germination was followed by an increase in endogenous respiration and a decrease in dry weight of approximately 5% at 4 hr. Endogenous fatty acids and soluble carbohydrates were utilized significantly during germination. Tritiated leucine, uridine, and thymidine were incorporated respectively into protein, ribonucleic acid (RNA), and deoxyribonucleic acid (DNA) fractions within the first 5 min of germination. Incorporation of oleic-1-C(14) into RNA and protein was significantly increased after germ tube development. Net synthesis of RNA and protein started prior to germ tube protrusion. Increase in DNA could be detected only later. A significant increase in RNA and protein during the 4th hr of germination was correlated with vegetative development. Inhibition of respiration and incorporation of leucine-H(3) and uridine-H(3) into corresponding macromolecules by dl-flu...Continue Reading

References

Jan 1, 1964·Progress in Nucleic Acid Research and Molecular Biology·F C Neidhardt
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Nov 1, 1957·Archives of Biochemistry and Biophysics·R C FRENCH, R L WEINTRAUB
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Sep 9, 1950·Nature·W E TREVELYANJ S HARRISON

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Citations

Jan 1, 1974·Folia Microbiologica·V Subíková, J Subík
Aug 5, 2014·Annual Review of Phytopathology·Isaac Barash
Jan 1, 1993·Mycoses·A P Garg, J Müller
Aug 1, 1976·Journal of the Science of Food and Agriculture·T Y Fan, J E Kinsella
Mar 1, 1973·Journal of Bacteriology·P Rousseau, H O Halvorson
Aug 1, 1970·Journal of Bacteriology·T J LeightonR A Kelln
Mar 1, 1969·Applied Microbiology·T J Leighton, J J Stock

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