%0 Journal Article %A Chet, I. %A Henis, Y. %A Mitchell, R. %T The Morphogenetic Effect of Sulphur-Containing Amino Acids, Glutathione and Iodoacetic Acid on Sclerotium rolfsii Sacc. %D 1966 %J Microbiology, %V 45 %N 3 %P 541-546 %@ 1465-2080 %R https://doi.org/10.1099/00221287-45-3-541 %I Microbiology Society, %X SUMMARY: The sulphur-containing amino acids L-cysteine, L-cystine, L-methionine, L-homocysteine thiolactone, L-homocystine and glutathione at 10−4 to 10−5 M inhibited sclerotial formation without inhibition of mycelial growth and induced basidia formation in the fungus Sclerotium rolfsii Sacc. Higher concentrations inhibited linear growth and production of sclerotia. The effect of L-cysteine was competitively antagonized by iodoacetic acid at a molar ratio of 30:1. Iodoacetic acid induced sclerotial formation at 3 x 10−5 to 10−4 M, sclerotia being produced in circles around inoculation point. The possible role of -SH groups in the morphogenesis of S. rolfsii is discussed. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-45-3-541