RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Allelopathy of pine litter: Delivery of allelopathic substances into forest floor

        Fukiko Kimura,Masashi Sato,Hisashi Kato-Noguchi 한국식물학회 2015 Journal of Plant Biology Vol.58 No.1

        Red pine (Pinus densiflora Sieb. et Zucc.) forest forms sparse forest floor where herbaceous plants do not grow well. Allelopathic chemical interaction was speculated to play an important role in the formation of the forest floor. However, only several phenolic acids and their related compounds have been isolated from the forest floor. Those compounds are universal in many plants and cannot distinguish such strong allelopathic activity of red pine from other plants. The present research investigates whether red pine litter contains some potential allelopathic substances other than phenolics. Aqueous methanol extracts of red pine litter inhibited the growth of cress (Lepidium sativum) and Digitaria sanguinalis L., and increasing the extract concentration increased the inhibition. The extract was then purified by several chromatographies and biological activities of all separated fractions were determined. Two main inhibitory substances were finally isolated and their chemical structures were determined by spectral data as 9α,13β- epidioxyabeit-8(14)en-18-oic acid and abscisic acid-β-Dglucopyranosyl ester. These compounds may be synthesized in pine plants and delivered into the forest floor by defoliation of the needles. Their inhibitory activity on the germination and the growth may play an important role in the formation of the sparse forest floors.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼