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數種의 植物生長促進 根圈細菌이 '녹광' 고추 幼苗의 初期生長에 미치는 影響
조자용,정순주,Cho, Ja-Yong,Chung, Soon-Ju 한국유기농업학회 1998 韓國有機農業學會誌 Vol.7 No.1
수종의 근권세균류를 시설토양에서 분리한 후 육묘용토에 혼입처리하여 식물생장촉진효과를 측정하였다. 시설토양에서 총 125주의 단일균구를 1차적으로 순수분리하였으며, 고추에서 발생하는 위조병원균, 입고병원균, 및 묘잘록병원균 등에 대하여 항균작용이 우수한 4주의 근권세균을 최종적으로 분리하였다. 항균작용이 가장 높았던 균주로는 RB 109로서 위조병원균에 대해서는 66.0%, 입고병원균에 대해서는 65.0%, 묘잘록병원균에 대해서는 66.1% 정도의 항균작용을 나타내 전반적으로 60% 이상의 길항작용을 갖는 것으로 보였다. 길항성 균주 RB 109의 배양액을 육묘용토에 혼입처리시 고추 유묘의 초기생장이 촉진되었다. 길항성 세균 RB 109를 동정한 결과 Pseudomonas sp.와 82% 정도 유사한 균주로 동정되어 Pseudomonas sp. RB 109로 명명하였다. Various rhizobacteria was isolated, and was bacterialized into the substrates to clarify the plant growth promoting effects of rhizobacteria on the early growth of red peper seedlings. Total 125 bacterial isolates were primarily isolated and purified from the soils in greenhouse. And four strains were finally screened, based on the antifungal activities against Fusarium sp., Pythium sp. and Rhizoctonia sp. of red pepper plants. The strongest antifungal strain RB 109 has a antagonistic activity against Fusarium sp., Pythium sp. and Rhizoctonia sp. in terms of 66.0%, 65.0% and 66.1%. Early growth of red pepper seedlings was promoted, when cultured solution of rhizobacteria RB 109 was bacterialized into the substrates. Antifungal rhizobacteria RB 109 was identified as Pseudomonas sp. related strains, which has a similarity of 82% to the Pseudomonas sp.
조자용 ( Ja Yong Cho ),김영선 ( Young Seon Kim ),박윤점 ( Yun Jum Park ),배종향 ( Jong Hyang Bae ),오대민 ( Dae Min Oh ),김병호 ( Byoung Ho Kim ),허북구 ( Buk Gu Heo ) 원광대학교 생명자원과학연구소 2011 생명자원과학연구 Vol.33 No.1
This study was conducted to gain the basic data on the effective utilization of a perennial plant, Compositae, Korean aster (Aster scaber). We have also examined into the physiological activity of Korean aster extract, and its anti-cancer activity. Total phenolic compound contents in 1,000 mg·L-1 Korean aster extract by hot water were 66.1-106.4 mg·L-1, however, that by ethanol were 45.1-69.4 mg·L-1. Total flavonoid contents in 1,000 mg·L-1 Aster scaber flower hot water extract increased most by 113.8 mg·L-1. DPPH radical scavenging activity (%) in terms of RC50 values decreased extremely in the extract from Aster scaber flower with the hot water by 82.1 mg·L-1, however, that increased most in Korean aster leaves extract with the ethanol by 396.2 mg·L-1. Nitrite radical scavenging activity (% of control) of 1,000 mg/L Aster scaber leaves hot water and ethanol extract were 77.5% and 50.0%, however, those flower hot water and ethanol extract were 81.0% and 60.5%. In 400 mg·L-¹ methanol extract from Korean aster, there were anti-cancer activity, its hyperplasia inhibition activity against lung (Calu-6), colon (HCT-116) and breast cancer (MCF-7) cells were 90.7, 91.4 and 57.8%.