Isolation and structures of acremolactones B and C, novel plant-growth inhibitory gamma-lactones from Acremonium roseum I4267.
Novel acremolactones B and C were isolated from the acremolactone A-producing Acremonium roseum I4267. The structure of acremolactone B having a phenylpyridyl gamma-lactone was elucidated by spectroscopic methods. It showed plant growth inhibitory activity toward Chinese cabbage seedlings. The congener of acremolactone C having a phenylcyclopentenone gamma-lactone showed weak activity.
Sassa
Takeshi
T
Department of Bioresource Engineering, Faculty of Agriculture, Yamagata University, Wakaba-cho, Tsuruoka 997-8555, Japan. tsassa@tds1.tr.yamagata-u.ac.jp
Ooi
Takahiro
T
Kinoshita
Hiroshi
H
D000164:Acremonium / Q000737:chemistry*; D001937:Brassica / Q000187:drug effects / Q000254:growth & development; D006575:Heterocyclic Compounds, 3-Ring / Q000737:chemistry* / Q000302:isolation & purification; D020128:Inhibitory Concentration 50; D007783:Lactones / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D012639:Seeds / Q000187:drug effects* / Q000254:growth & development
D006575:Heterocyclic Compounds, 3-Ring; D007783:Lactones; C501233:acremolactone B; C501234:acremolactone C