title: Momilactone A and B as allelochemicals from moss Hypnum plumaeforme: first occurrence in bryophytes.
abstract: Momilactones A (1) and B (2), which have been identified as phytoalexins in rice, were isolated from extracts of the moss Hypnum plumaeforme. This is the first isolation and identification of momilactones as allelochemicals from a bryophyte. H. plumaeforme produces considerable amounts of momilactones (isolated yield: 8.4 mg/Kg plant for 1; 4.2 mg/Kg for 2). EtOAc extracts from H. plumaeforme and 2 showed growth inhibitory activity against angiosperms, moss, and liverwort plants. On the other hand, the growth of H. plumaeforme was insensitive to its extract and 2. Our finding suggests that momilactones play an important role as allelochemicals in this moss.
authors: Department of Biochemistry, Faculty of Science, Okayama University of Science, Ridai-cho, Okayama, Japan. takaoka@ed.ehime-u.ac.jp
authors: Hiroshi
authors: H
authors: Nozaki
authors: Ken-ichiro
authors: K
authors: Hayashi
authors: Naoki
authors: N
authors: Nishimura
authors: Hiroshi
authors: H
authors: Kawaide
authors: Akihiko
authors: A
authors: Matsuo
authors: Daisuke
authors: D
authors: Takaoka
mesh_terms: D044002:Bryophyta / Q000254:growth & development / Q000378:metabolism*; D004224:Diterpenes / Q000378:metabolism* / Q000494:pharmacology; D007783:Lactones / Q000378:metabolism* / Q000494:pharmacology; D010937:Plant Growth Regulators / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D004224:Diterpenes; D007783:Lactones; D010937:Plant Growth Regulators; C477203:momilactone B; C116023:momilactone A