Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Comparison on the Changes in Non-structural Carbohydrate Concentration with Regard to Cold Tolerance of Zoysiagrass and Creeping Bentgrass

월동 기간 중 Zoysiagrass와 Creeping Bentgrass의 비구조 탄수화물 농도의 변화 비교

  • Kim Dae Hyun (Department of Animal Science, Institute of Agricultural Science and Technology, College of Agriculture & Life Science, Chonnam National University) ;
  • Jung Woo Jin (Glucosamine Saccharide Materials Laboratory(NRL), Institute of Agricultural Science and Technology, Chonnam National University) ;
  • Lee Bok Rye (Department of Animal Science, Institute of Agricultural Science and Technology, College of Agriculture & Life Science, Chonnam National University) ;
  • Kim Eun Ju (Department of Animal Science, Institute of Agricultural Science and Technology, College of Agriculture & Life Science, Chonnam National University) ;
  • Kim Kil Yong (Department of Biological and Environmental Chemistry, College of Agriculture & Life Science, APSRC, Chonnam Natioanl University) ;
  • Kim Tae Hwan (Department of Biological and Environmental Chemistry, College of Agriculture & Life Science, APSRC, Chonnam Natioanl University)
  • Published : 2005.03.01
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Abstract

월동기간 동안 zoysiagrass[Zoysia matrella(L.) Merr]와 creeping bentgrass(Agrostis palustris Hunds)의 저온 스트레스에 대한 탄수화물 대사 반응을 구명하기 위해 11월부터 이듬해 4월까지의 식물체내의 탄수화물 대사산물의 변화를 비교 분석하였다. Creeping bentgrass의 녹색도와 뿌리 성장은 온도변화와 거의 평행하게 변화하였으나 zoysiagrass는 뿌리 성장에 거의 변화가 없이 3월 말까지 담황색을 나타냈다. 11월부터 이듬해 1월까지 zoysiagrass에서 glucose와 sucrose 함량은 크게 높았고, 1월에서 4월까지 starch를 제외한 모든 탄수화물 화합물들의 감소의 정도가 현저하게 낮았다. Reeping bentgrass에서 fructan의 depolymerization이 2월 이후 단당류와 이당류의 감소와 일치했으나 zoysiagrass에서는 starch 가수분해가 11월부터 일찍이 시작되었다. 이상의 결과들은 creeping bentgrass와 비교 했을때 zoysisagrass 뿌리의 높은 비구조적 탄수화물의 농도가 저온 내성과 밀접한 관계가 있음을 잘 나타내어 주고 있다.

Keywords

References

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