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아미노산, Polyamine 및 flavonoid 첨가가 복숭아 화분의 저온 발아에 미치는 영향

Effect of Amino Acid, Polyamine, and Flavonoid on the Pollen Germination of Peach(Prunus persica SIEB under Low Temperature Conditions

  • 천병덕 (안성시 농업기술센타) ;
  • 최인수 (부산대학교 생명자원과학부) ;
  • 강점순 (부산대학교 생명자원과학부)
  • Cheon, Beong-Duck (Ansong City Office of Agricultural Development and Technology Center) ;
  • Choi, In-Soo (School of Bio-Resources, Pusan National University) ;
  • Kang, Jum-Soon (School of Bio-Resources, Pusan National University)
  • 발행 : 2006.08.30

초록

복숭아는 다른 과수에 비하여 개화기가 빨라 저온으로 인한 화분발아 장해로 결실율이 저하되고 있다. 이러한 문제점을 해결하기 위하여 저온에서 복숭아의 화분 발아를 증진시킬 수 있는 방법을 강구하고자 화분발아 배지에 아미노산, polyamine, flavonoid 등을 첨가하여 일련을 실험을 수행하였다. 저온에서 배지내 첨가물질로써 asparagine, glutamine, spermine, putrescine, kaemferol이 유효하였으며, 이들의 적정농도는 asparagine과 glutamine는 10 mM, spermine 100 mM, putrescine 1000 uM, kaemferol은 1.0 uM 이였다. 저온에서 발아율이 높았던 처리는 $100\;mg{\cdot}L^{-1}\;H_3BO_3+10\;mM$ asparagine 혼용조합이었고, 다음이 $100\;mg{\cdot}L^{-1}\;H_3BO_3+10\;mM$ glutamine 혼용조합, $100\;mg{\cdot}L^{-1}\;H_3BO_3+200\;{\mu}M$ spermine 혼용조합 순이었다. 기본배지에 치상된 ‘장택백봉’의 화분 발아율은 25.4%, '수봉' 13.9% 불과하였으나, $100\;mg{\cdot}L^{-1}\;H_3BO_3+10\;mM$ asparagine 첨가된 배지는 두 품종 모두 대조구보다 화분 발아율이 $18{\sim}19%$ 증진되었다. 아미노산과 폴리아민 첨가에 의한 화분발아율 증진 효과는 '장택백봉' 보다는 '수봉'에서 더욱 현저하였다.

The objective of this study was focused on the enhancement of pollen germination frequency in peach (Prunus $persica\;_{SIEB}$) under low temperature conditions. The effect of factors such as amino acid, polyamine, and flavonoid on the pollen germination was investigated, and the results are summarized as follows. When amino acid, polyamine or flavonoid was added to the germination medium at $10^{\circ}C$, pollen germination frequency was strongly promoted. Optimum concentration of each supplement for pollen germination enhancement was $100\;mg{\cdot}L^{-1}\;H_3BO_3$, 10 mM asparagine, 10 mM glutamine, 100 mM spermine, $1000\;{\mu}M$ putrescine, and $1.0\;{\mu}M$ kaemferol. The best combination of factors in pollen germination was $100\;mg{\cdot}L^{-1}\;H_3BO_3+10\;mM$ asparagine, followed by $100\;mg{\cdot}L^{-1}\;H_3BO_310mM$ glutamine, $100\;mg{\cdot}L^{-1}\;H_3BO_3+200mM$ spermine, and 10 mM asparagine. These combinations promoted pollen germination by 18% in 'Nagasawa-Hakuho', and 19% in 'Shuho' compared to their germination percentage on the basal medium.

키워드

참고문헌

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