Influence of pretreatment medium, fresh medium addition, and culture plate size on the production of embryos in isolated microspore culture of hot pepper (Capsicum annuum L.)

고추의 소포자 배양 시 전처리 배지, 새 배지의 첨가, 및 배양 용기의 크기가 배의 생산에 미치는 영향

  • Park, Eun-Joon (Department of Life Sciences, Mokwon University) ;
  • Kim, Jin-Ae (Department of Life Sciences, Mokwon University) ;
  • Kim, Moon-Za (Department of Life Sciences, Mokwon University)
  • 박은준 (목원대학교 생명과학과) ;
  • 김진애 (목원대학교 생명과학과) ;
  • 김문자 (목원대학교 생명과학과)
  • Published : 2009.06.30


The influences of pretreatment medium, the addition of fresh medium, and the size of culture plate on the production of embryos were investigated in isolated microspore culture of hot pepper (Capsicum annuum L.). Among the media used for heat shock pretreatment ($32{\pm}1{^{\circ}C}$), high frequency embryo production was obtained when the sucrosestarvation medium A was used. On the other hand, neither 0.37 M mannitol solution nor NLNS medium supplemented with sucrose was not efficient for embryo production. The addition of culture medium to pretreatment media considerably decreased the embryo production even though embryo development proceeded further. The embryo production was not improved by the addition of fresh medium after 2 or 3 weeks from starting culture. Increase in the size of the culture plate from $3.5{\times}1.0$ cm to $6.0{\times}1.5$ cm improved embryo quality. These results will provide valuable information for developing an efficient microspore culture system of hot pepper for high frequency embryo production.



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