생명과학회지 (Journal of Life Science)

  • 제14권6호
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  • Pages.1018-1022
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  • 2004
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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Lisianthus 화분의 기내배양 및 Agroinfiltration에 의한 형질전환

In Vitro Culture and Transformation by Agroinfiltration of Lisianthus (Eustoma russellianus) Pollen

  • 박희성 (대구가톨릭대학교 식물유전공학과)
  • Park Hee Sung (Department of Plant Biotechnology, Catholic University of Daegu)
  • 발행 : 2004.12.01
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초록

Agrobacterium을 이용한 lisianthus화분의 형질전환을 위하여 적정조건을 수립하였다. 화분의 발아 및 화분관의 발달은 화분발아배지(pollen germination medium; PCM)에 sucrose를 $7-15\%$ 첨가 시키고 pH조건을 5.5-7.0으로 조절하여 $20^{\circ}C-27^{\circ}C$에서 배양할 경우 성공적으로 이루어졌다. 형질전환을 위하여 Agrobacterium 현탁액을 lisianthus화분배양액에 첨가하여 진공침윤을 20 min실시하였으며 형질전환화분은 조직화학적 분석 그리고 발현되는 GUS mRNA를 이용한 RT-PCR 및 Southern hybridization에 의한 DNA산물 분석 등에 의하여 GUS발현을 확인하였다. 이러한 결과를 통하여 화분을 이용한 일시발현기술을 제시하게 되었다.

Optimized conditions for Agrobacterium-mediated lisianthus pollen transformation were adjusted using various factors such as temperature, pH and sucrose concentration. Pollen tube growth was successfully achieved in a medium (pollen germination medium; PGM) containing $7-15\%$ sucrose with pH in the range of 5.5-7.0 at temperature of $20-27^{\circ}C$. Lisianthus pollen was vacuum-infiltrated with Agrobacterium cell suspension for 20 min, and transformed pollen was confirmed by GUS histochemistry and Southern hybridization following RT-PCR. Transgenic pollen system may be utilized for establishing an area of plant transient expression systems based on the convenient pollen transformation procedure presented in here.

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참고문헌

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