Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Expression Patterns of Enzymes in Different Tissues of Oil Seed Rape (Brassica napus L.) Seedling

유료용 유채 유식물의 조직내 효소의 발현 패턴

  • Song, Yong-Su (Environment-Friendly Agriculture Research Center (EFARC), Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, Chonnam National University) ;
  • Seo, Dong-Jun (Environment-Friendly Agriculture Research Center (EFARC), Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, Chonnam National University) ;
  • Lee, Bok-Rye (Department of Animal Science, Institute of Agricultural Science and Technology, Chonnam National University) ;
  • Jung, Woo-Jin (Environment-Friendly Agriculture Research Center (EFARC), Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, Chonnam National University)
  • 송용수 (전남대학교 응용생물공학부) ;
  • 서동준 (전남대학교 응용생물공학부) ;
  • 이복례 (전남대학교 동물자원학부) ;
  • 정우진 (전남대학교 응용생물공학부)
  • Published : 2009.06.30
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Abstract

To investigate expression patterns of chitinase, ${\beta}$-1,3-glucanase and peroxidase involved in biological control of phytopathogens, three oil seed rapes (Capitol, Pollen and Saturnin) were used. Activities of the enzymes in old leaves were $9.7{\sim}11.8$ unit/mg protein in chitinase, $11.1{\sim}17.3$ unit/mg protein in ${\beta}$-1,3-glucanase and $0.6{\sim}1.7$ unit/mg protein in peroxidase. Activities of the enzymes in roots were $39.2{\sim}49.0$ unit/mg protein in chitinase, $49.9{\sim}62.0$ unit/mg protein in ${\beta}$-1,3-glucanase and $2.4{\sim}3.8$ unit/mg protein in peroxidase. Chitinase and ${\beta}$-1,3-glucanase activity were the highest level in Saturnin leaves and in Capitol roots while activities of those were the lowest level in Capitol leaves. Also, chitinase and ${\beta}$-1,3-glucanase and peroxidase activity were the lowest level in Saturnin roots. Active bands of chitinase isoform in leaves (73, 51, 40, 34, and 29 kDa) and in roots (100, 57 34, and 29 kDa) tissues showed in the SDS-PAGE gel. Active bands of ${\beta}$-1,3-glucanase isoform in leaves and roots (75 and 55 kDa) tissues showed on the SDS-PAGE gel. Active staining of peroxidase showed the strongest level in leaves and roots of Pollen. Active bands of peroxidase isoform in leaves (122, 114, and 93 kDa) and in roots (135, 122, 114, and 93 kDa) tissues showed on the Native-PAGE gel. These results indicated that establishment of expression pattern of enzymes in rape tissues could play as an important role with respect to resistance of plant pathogens in rape.

식물병의 생물학적 방제에 관련한 chitinase, ${\beta}$-1,3-glucanase, peroxidase의 발현 패턴을 살펴보기 위하여 3 품종(Capitol, Pollen 및 Saturnin)의 유로용 유채를 조사하였다. 유채 old leaf에서 병발생관련 단백질의 활성 중에서 chitinase의 경우 단백질 mg당 9.7${\sim}$11.8 unit, ${\beta}$-1,3-glucanase의 경우 단백질 mg당 11.1${\sim}$17.3 unit, peroxidase의 경우 단백질 mg당 0.6${\sim}$1.7 unit를 나타내었다. 유채 뿌리내 효소의 활성 중에서 chitinase의 경우 단백질 mg당 39.2${\sim}$49.0 unit, ${\beta}$-1,3-glucanase의 경우 단백질 mg당 49.9${\sim}$62.0 unit, peroxidase의 경우 단백질 mg당 2.4${\sim}$3.8 unIt를 나타내었다. Chitinase와 ${\beta}$-1,3-glucanase 활성은 Saturnin 잎과 Capitol 뿌리내에서 가장 높았고, 반면 Capitol 잎에서 가장 낮은 수준을 보였다. 또한, chitinase, ${\beta}$-1,3-glucanase 및 peroxidase 활성은 Saturnin 뿌리내에서 가장 낮은 수준을 보였다. Chitinase 동위효소가 잎(73, 51, 40, 34, 29 kDa)과 뿌리 (100, 57 34, 29 kDa)의 SDS-PAGE 겔 상에서 보였다. ${\beta}$-1,3-glucanase 동위효소가 잎과 뿌리 (75, 55 kDa)의 SDS-PAGE 겔 상에서 보였다. Peroxidase 활성염색은 Pollen의 잎과 뿌리내에서 가장 강하게 나타났다. Peroxidase 동위효소는 잎(122, 114, 93 kDa)과 뿌리(135, 122, 114, 93 kDa)의 Native-PAGE 겔 상에서 보였다. 이상의 결과로 볼 때 유채 조직내 효소 발현 패턴의 확립은 유채 생육기간 동안 식물병에 대한 저항성과 관련하여 중요한 자료가 될 것으로 사료된다.

Keywords

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