Fungitoxicity ofm-fluorophenylalanine-containing peptides towardsPythium ultimum |
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Authors: | D H Young R J Mehta |
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Institution: | (1) Research Laboratories, Rohm and Haas Co., 19477 Spring House, Pennsylvania, USA |
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Abstract: | Summary The tripeptide L-m-fluorophenylalanyl-L-alanyl-L-alanine was much more fungitoxic towardsPythium ultimum than the dipeptide L-m-fluorophenylalanyl-L-alanine orm-fluorophenylalanine. The fungitoxicity of the tripeptide was reduced by L-alanyl peptides and phenylalanine, but not by other amino acids. In contrast, the fungitoxicity ofm-fluorophenylalanine was unaffected by peptides, and was antagonized by several amino acids. These results suggest the effective delivery ofm-fluorophenylalanine into the cell by a tripeptide carrier. |
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Keywords: | Amino acid transport fluorophenylalanine peptide transport Pythium ultimum |
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