Journal of Plant Biotechnology

The Korean Society of Plant Biotechnology (한국식물생명공학회)
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Effect of the Cold, ABA and Salt Stress on the Activity of Acid Phosphate in the Young Plants of Spring Radishes (Raphanus sativus)

봄무(Raphanus sativus)유식물에서 저온, ABA와 염분 스트레스가 Acid Phosphatase 활성에 미치는 영향

  • Park, Ji-Hun (Department of Life Science, the University of Suwon) ;
  • Cho, Bong-Heuy (Department of Life Science, the University of Suwon)
  • 박지훈 (수원대학교 자연과학대학 생명과학과 & 기능성생명소재연구소) ;
  • 조봉희 (수원대학교 자연과학대학 생명과학과 & 기능성생명소재연구소)
  • Published : 2002.12.01
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Abstract

Acid phosphatase in the radish young plant showed optimal activity at pH 5.5. The activity of acid phosphatase was maintained longer during the ABA (0.5 mM) treatment than those in control, whereas that was similar to the treatment of NaCl (0.5 mM). But during the cold (4$^{\circ}C$) treatment, the activity of acid phosphatase was decreased dramatically compared to the control, which was maintained almost on a constant level and increased gradually during 6 days. It showed that acid phosphatase was in relation to the change of biochemical reaction, which plants were coped with cold, NaCl and ABA stress.

무 유식물에서 acid phosphatase의 활성은 산성인 pH 5.5에서 최대치를 보였다. 0.5 mM ABA처리로 acid phosphatase의 활성이 대조구보다는 오래 지속되였고, 0.5 mM NaCl 처리시 도 acid phosphatase 활성의 변화는 ABA 처리 때와 유사하였다. 그러나 저온처리를 하면, 대조구에 비해서 효소의 활성이 급속히 감소되었다가, 대조구의 acid phosphatase는 거의 같은 활성을 유지하는 동안 처리구의 acid phosphatae의 활성은 6 일까지 서서히 증가되었다. Acid phosphatase는 저온처리, ABA와 NaCl처리에 대항하여 식물이 스트레스에 대처하도록 생화학적인 반응에 관하는 것으로 보인다.

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References

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