살초활성물질 함유 국내 자생식물의 탐색 (Ⅰ)
The objective of this experiment was to search plant species with herbicidal activity in Korea. Two hundred native plants were collected and their methanol extracts were obtained. Herbicidal activity of methanol extracts were determined by seed bioassay using canola (Brassica napus L.) seedlings. Si...
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Veröffentlicht in: | 농약과학회지 2003, Vol.7 (4), p.248-257 |
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Zusammenfassung: | The objective of this experiment was to search plant species with herbicidal activity in Korea. Two hundred native plants were collected and their methanol extracts were obtained. Herbicidal activity of methanol extracts were determined by seed bioassay using canola (Brassica napus L.) seedlings. Six plants such as Staphylea bumalda, Wistaria floribunda, Allium victorialis, Rumex crispus, Chionanthus retusa, and Ulmus parvifolia were highly herbicidal: their $GR_{50}$ values were < $1,000{\mu}g\;g^{-1}$. In addition, seventeen plants such as Galium spurium, Zelkova serrata, Campsis grandiflora, Eucommia ulmoides, Sorbus commixta, Deutzia glabrata, Cercis chinensis, Alnus hirsuta, Zanthoxylum schinifolium, Quercus acutissima, Robinia pseudoacacia, Gleditsia japonica, Kerria japonica, Ligustrum obtusifolium, Thuja orientalis, Chamaecyparis obtusa, and Pulsatilla koreana showed herbicidal activity: their $GR_{50}$ values were between 1,000 and $2,000{\mu}g\;g^{-1}$. However, 177 plants showed no herbicidal activity. Plants with herbicidal activity found in this study could be used for weed management and herbicidal compounds in such herbicidal plants could be used as lead compounds in the development of new herbicides. 본 연구의 목적은 국내의 자생식물 중 살초활성이 있는 식물 종을 선발하는데 있다. 국내의 자생식물 73과(科) 200종(種) 시료로부터 MeOH 조추출물을 얻은 다음 24-well plate에서 유채 (Brassica napus L.) 에 대한 살초효과를 검정하였다. 실험에 사용한 200종 식물 중 6종 식물 - 고추나무 (Staphylea bumalda), 등나무(Wistaria floribunda), 산마늘(Allium victorialis), 소리쟁이(Rumex crispus), 이팝나무(Chionanthus retusa), 참느릅 나무 (Ulmus parvifolia)는 높은 살초활성을 나타내었고 ($GR_{50}$ 값, < $1,000{\mu}g\;g^{-1}$), 17종 식물 - 갈퀴덩굴(Galium spurium), 느티나무(Zelkova serrata), 능소화(Campsis gradiflora), 두충(Eucommia ulmoides), 마가목(Sorbus commixta.), 물참대(Deutzia glabrata), 박태기나무(Cercis chinensis), 산오리(Alnus hirsuta), 산초나무(Zanthoxylum schinifolium), 상수리나무(Quercus acutissima), 아까시나무(Robinia pseudoacacia), 주엽나무(Gleditsia japonica), 죽단화(Kerria japonica), 쥐똥나무(Ligustrum obtusifolium), 측백나무(Thuja orientalis), 편백(Chamaecyparis obtusa), 할미꽃(Pulsatilla koreana)은 중정도의 살초활성을 나타내었으나($GR_{50}$ 값, $1,000-2,000{\mu}g\;g^{-1}$), 나머지 177종 식물은 살초활성을 나타내지 않았다. 높은 살초활성을 나타낸 식물로부터 분리되는 천연활성물질들은 향후 새로운 제초제 개발을 위한 모화합물 제공, 상호대립억제 작용성을 갖는 작물 품종 개발 혹은 개량에의 활용, 그리고 친환경 유기농업용 잡초방제에의 활용이 기대된다. |
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ISSN: | 1226-6183 2287-2051 |