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이위영 ( Wi Young Lee ),박응준 ( Eung Jun Park ),김현태 ( Hyun Tae Kim ),한상억 ( Sang Urk Han ) 한국임학회 2014 한국산림과학회지 Vol.103 No.2
잣나무의 주요생장관련 대사물질 인자를 구명하기 위하여 3개 지역에 풍매차대 가계로 조성한 29년생 잣나무의 대사물질을 GC/MS을 이용하여 대사체분석을 실시하였다. 분리한 110종의 대사 물질 중 62종이 우수가계와 저조가계 간에 유의적 차이(p<0.05)가 있었으며 모두 상대적으로 우수가계에서 대사물질 함량을 높게 함유하고 있는 것으로 나타났다. Phosphoric acid, alanine, glycine, malic acid, sucrose, d-turanose, succinic acid 등 22종의 물질은 생장 저조 가계에 비해 생장 우수 가계에서 1.5배 이상 높게 함유되어 있었다. 한편 생장특성과 대사물질간의 상관관계를 분석한 결과 생장 우수가계와 생장 저조가계 그룹 간에 유의적 차이가 있었던 alanine, malic acid, sucrose, dturanose, succinic acid 등 15종에서 고도의 정의 상관관계(p<0.01)가 있었다. 또한 생장과 유의적 상관관계(p<0.05)가 있으면서 지역간에 변이가 적어 환경에 영향을 적게 받고 있는 대사물질로는 acetic acid, succinic acid, butanoic acid, glutamic acid 및 inositol로 분석되었다. 이들 물질은 잣나무 생장 우수개체에 유의적으로 높게 함유하고 있는 대사물질 인자로 추정되었다. A metabolomic study using GC/MS analysis was conducted to identify key metabolic components regulating the growth of open-pollinated Pinus koraiensis families, which were grown for 29 years at three different locations. Among 110 individual metabolites identified, the contents of 62 metabolites were higher in the superior than in the inferior families (p<0.05), together with 22 metabolites, such as phosphoric acid, alanine, glycine, malic acid, and sucrose, being accumulated 1.5-fold higher in the superior families. In addition, 15 metabolites including alanine, malic acid, sucrose, d-turanose, and succinic acid showed positive correlation with the growth (p<0.01). Furthermore, the metabolites, of which contents were correlated with the growth but not significantly changed at different locations, were acetic acid, succinic acid, butanoic acid, glutamic acid, and inositol. Therefore we suggest that several metabolites selected in this study may be used as metabolic markers for quantitative growth trait in P. koraiensis.
이위영 ( Wi Young Lee ),박웅준 ( Eung Jun Park ),한상억 ( Sang Urk Han ) 한국산림과학회 2012 한국산림과학회지 Vol.101 No.4
A metabolomic study was conducted to identify key metabolic components which are correlated with the growth of 4-years-old Pinus koraiensis seedlings harvested at actively height growing season (May 18th). Among 105 individual metabolites identified by GC/MS analysis alanine threonine oleic acid and butanoic acids were negatively correlated with both height and weight of 4-year-old seedlings while malic acid xylose glucose d-turanose and inositol had positive correlation with various growth parameters. During the actively growing season the concentrations of both amino acids and organic acids in the main stem of superior seedling group were lower but the photosynthates such as mono-saccharide and sucrose were higher than in other seedling groups such as Intermediate and Inferior. Interestingly d-turanose an analogue of sucrose that is not metabolized in higher plants but used as carbon source by many organisms including numerous species of bacteria and fungi showed the highest correlation (r=0.896, p<0.001) with height of 4-year-old seedlings indicating that possible interaction with mycorrhizal organisms. Therefore we suggest that several metabolites selected in this study may be used as metabolic markers for complex traits in P. koraiensis.