Effect of Aqueous Extracts on the Callus Growth, Seed Germination, and Growth of Some Plants and Antibacterial Activity by Equisetum arvense L.

쇠뜨기(Equisetum arvense L.)의 수용추출액이 몇가지 식물의 캘러스 생장, 종자발아, 유묘생장 및 항균활성에 미치는 영향

  • Published : 1999.03.01

Abstract

To investigate phytotoxic substances in Equisetum arvense, the aqueous extracts(25 and 8$0^{\circ}C$) or the freeze-drying matter from aqueous extracts($25^{\circ}C$) of E. arvense were tested at different concentrations for biological activities on callus induction and growth, seed germination, seedling growth and antibacterial function. Callus induction and growth of Oryza sativa and Brassica campestris ssp. pekinensis were inhibited by the aqueous extracts at 8$0^{\circ}C$ than at $25^{\circ}C$ and the higher concentrations. Callus growth of four receptor species was inhibited in order of Platycodon grandiflorum, Sesamum indicum, Brassica campestris ssp. pekinensis and Oryza sativa. Seed germination of Ο. sativa, S. indicum, and B. campestris ssp. pekinensis was not affected at low concentration, but it was proportionally inhibited by the higher concentrations. The greatest inhibition of seed germination was 28.3% compared to control, when 2,000$\mu\textrm{g}$/ml of freeze-drying matter was applied to B. campestris ssp. pekinensis. Shoot growth was stimulated by 500$\mu\textrm{g}$/ml of freeze-drying matter, but it was inhibited by the higher concentrations. Root growth was significantly inhibited compare to control at all concentrations. Antibacterial activity of freeze-drying matter didn't showed against Xantomonas oryzae and Eschrichia coli, but a small clear zone was formed by 500$\mu\textrm{g}$ of freeze-drying matter against Erwinia carotovora ssp. carotovora.

쇠뜨기에 다른식물의 생장을 저해하는 물질이 생성되는지를 알아보기 위하여, 수용추출액으로 몇가지 식물의 캘러스 생장, 종자발아, 유묘생장 및 항균활성에 미치는 영향을 조사하였다. 수용 추출액의 첨가농도가 높은 배지에서 벼와 배추의 캘러스 유기 및 발달을 억제하였으며, 8$0^{\circ}C$ 추출액이 $25^{\circ}C$ 추출액보다 유의하게 캘러스 유기 및 생장을 억제하였다. 20%추출액 첨가배지에서 공시식물의 캘러스 생장은 추출온도에 관계없이 도라지, 참깨, 배추, 벼 순으로 억제되었다. 냉동건조한 수용추출액 고형물은 저농도에서는 영향이 적었으나, 처리농도에 비례하여 벼, 참깨, 배추의 종자발아를 억제하였고, 특히 배추는 2,000$\mu\textrm{g}$/mι농도에서 대조구의 28.3%로 급격한 발아억제를 보였다. 유식물 생장은 500$\mu\textrm{g}$/mι의 저농도에서는 대조구보다 초장이 약간 촉진되는 경향을 보였으나, 처리농도가 증가함에 따라 심하게 억제되었으며, 특히 근장이 유의하게 억제되었다. 추출액 고형물의 항균활성은 500$\mu\textrm{g}$에서 E. carotovora에서만 약간의 억제대를 형성하였으며, X. oryzae pv. oryzae와 E. coli에 대해서 는 항균활성을 보이지 않았다.

Keywords

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