Abstract
순천만에 자생하는 2종의 염생식물의 뿌리로부터 내생 진균을 분리하였다. 사용 되어진 염생식물은 칠면초와 천일사초이며, 스트렙토마이신이 포함된 최소배지를 사용하여 내생진균을 배양한 후 순수 분리하였다. 분리된 15 내 생진균 균주 rDNA의 ITS 영역의 염기서열을 분석한 결과 칠면초에서 5속, 천일사초에서 7속의 내생진균이 확인되었다. 그리고 Shannon's diversity index(H')를 이용하여 칠면초와 천일사초로부터 분리된 내생진균들의 종 다양성은 각각 1.561과 1.889로 확인되었으며 유연관계를 확인하기 위하여 계통분석을 수행하였다. 순천만 자생식물인 칠면초와 천일사초의 내생진균에서 자낭균문 Pezizomycotina 아문이 많이 분포하고 있음을 알 수 있었으며, Pezizomycotina 아문 중에서도 Sordariomycetes 강, Dothideomycetes 강, Eurotiomycetes 강에 속하는 내생진균이 칠면초와 천일사초에 모두 분포는 것을 확인하였다. Endophytic fungi were isolated from the roots of halophytes, Suaeda japonica and Carex scabrifolia in the Suncheonbay. The ITS region in rDNA of 15 endophytic fungal strains were amplified using PCR with universal primers ITS1 and ITS4, and those amplified fragments were sequenced. Based on ITS sequence, five fungal genera were identified in S. japonica and seven fungal genera were identified in C. scabrifolia. The Shannon's diversity index (H') of endophytic fungi isolated from S. japonica and C. scabrifolia was 1.561 and 1.889, respectively. In phylogenetic analysis, it was shown that Ascomycota and Pezizomycotina was widely distributed both in S. japonica and C. scabrifolia. Also, Sordariomycetes, Dothideomycetes and Eurotiomycetes were shown to be distributed in these halophytes used in this experiment.
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