| 释义 |
lycomarasmin Chem.|ˌlaɪkəʊməˈræsmɪn|
Also † lyco-marasmine.
[ad. G. lyco-marasmin (Plattner & Clauson-Kaas 1945, in Experientia I. 196), f. mod.L. lyco-persici varietal or specific epithet (taken as gen. of lycopersicon: see lycopersicin) + Gr. µαρασµ-ός withering + -in1.]
A phytotoxic dipeptide, C9H15N3O7, which contains glycine and aspartic acid residues and was isolated from Fusarium bulbigenum var. lycopersici, the fungus which causes tomato wilt.
1945Experientia I. 196 On hydrolysis lyco-marasmine yields glycine, aspartic and (probably) pyruvic acid and ammonia. 1956Ann. Rev. Microbiol. X. 361 Lycomarasmin, therefore, causes iron deficiency in the stem and iron excess in the leaves. 1972S. A. J. Tarr Princ. Plant Path. xiii. 236 Lycomarasmin is a dipeptide which brings about wilting and yellowing of tomato cuttings, and its phytotoxicity is increased in the presence of iron. |
