부산대학교 도서관

In order to survey the competitive dominant and antifungal effect of Solanum viarum(Dunal), In this study species diversity change for belt-transect method in patch of S. viarum and allelopathic effects of the aqueous extracts on S. viarum were investigated. Number of species and species diversity for close to patch of S. viarum was decreased gradually 1site(7.7±2.0, 1.5±0.2), 2site(5.3±1.2, 1.2±0.2) and 3site(4.0±1.7, 0.9±0.1). Generally, antifungal activity was appeared by increased the concentration of the aqueous extracts from S. viarum but it differed from species of microbes and treatment of aqueous extracts. The total phenolic compounds on region of S. viarum was gradually increased in stems(fresh 0.56±0.02mg/g, dry 1.58±0.08mg/g), roots(fresh 1.77± 0.07mg/g, dry 2.64±0.06 mg/g), leaves(fresh 6.01±0.14mg/g, dry 7.04±0.29 mg/g), seeds(fresh 6.21±0.17 mg/g, dry 9.08±0.73mg/g). Total phenolic compounds of soil in survey area was increased gradually 1site(0.16± 0.01mg/g), 2site(0.17±0.01 mg/g) and 3site(0.22±0.02mg/g). The negative correlation on germination and on growth of receptor plants were shown by total phenolic compounds on region of S. viarum. And the number of species and species diversity(r=-0.692, P＜0.05) were negative correlated with increased total phenolic compounds of soil in the survey area. Therefore, it suggested that S. viarum may hold a dominant position by phenolic compounds and have allelopathic effects in ecosystem of Jeju Island.