Effect of In Vitro Culture conditions on Ex Vitro Sprouting of Bulblets of Oriental Lilium Hybrid cv. Casa Blanca

기내 배양환경이 오리엔탈 백합 '카사블랑카' 의 기외 발아에 미치는 영향

  • 전민화 (충북대학교 첨단원예기술개발센터) ;
  • 한은주 (충북대학교 첨단원예기술개발센터) ;
  • 박현춘 (충북대학교 첨단원예기술개발센터) ;
  • 백기엽 (충북대학교 첨단원예기술개발센터)
  • Published : 2001.11.01

Abstract

This study was carried out with Lilium oriental hybrid cv. Casa Blanca to observe the effect of in vitro culture conditions on ex vitro sprouting of bulblets. Low temperature (15$^{\circ}C$) inhibited the growth of in vitro bulblets while high temperature ($25^{\circ}C$) enhanced the growth. Bulblets cultured at 15$^{\circ}C$ did not show dormacy while those cultured at 2$0^{\circ}C$ ,$25^{\circ}C$ had a longer dormancy period. High sucrose concentration (9%) induced longer dormancy. Dormancy period was also prolonged in bulblets cultured in vitro at high temperature ($25^{\circ}C$). Dormancy period was more affected by in vitro culture temperature rather than sucrose concentration. Physiological dormancy was released more rapidly when bulblets were cultured at $25^{\circ}C$ for 6 weeks and further transferred at 15$^{\circ}C$ and cultured for another 12 weeks. Treatment of ABA induced the dormancy in Lilium bulblets but when bulblets were subjected to chilling treatment (4$^{\circ}C$ for 8 weeks) nearly 100% sprouting were observed. The medium containing 1.0 mg/L BA or 1.0 mg/L fluridone was also effective to produce non-dormant bulblets.

기내 백합 소인경의 비대는 저온구인 15$^{\circ}C$에서 현저히 감소하는 경향이었고 $25^{\circ}C$에서 증가하였다. 15$^{\circ}C$에서 배양한 백합 소인경은 휴면을 하지 않았거나 하더라도 휴면정도가 미미하였던 반면, 2$0^{\circ}C$$25^{\circ}C$에서 배양한 소인경은 모두 휴면이 깊었다. 15$^{\circ}C$와 2$0^{\circ}C$에서는 sucrose 농도가 높을수록 휴면정도가 깊었으나 $25^{\circ}C$ 배양온도에서는 sucrose농도에 상관없이 모두 휴면이 깊어 배양온도가 기내 백합 소인경의 휴면에 더 크게 관여하는 것으로 나타났다. 15$^{\circ}C$에서 배양한 소인경을 $25^{\circ}C$ 조건으로 옮겨 3주 이상 배양하면 휴면이 깊어졌고 $25^{\circ}C$ 조건에서 배양한 소인경을 15$^{\circ}C$ 조건으로 옮겨 12주간 배양하면 휴면이 타파되었다. ABA를 배지 내에 첨가하면 15$^{\circ}C$ 배양온도에서도 휴면이 유도되었으나 4$^{\circ}C$에서 8주간의 저온처리로 휴면이 100% 타파되었다. 배지 내에 BA (1.0mg/L) 또는 fluridone (1.0 mg/L)을 첨가하였을 때 Lilium Oriental Hybrid 'Casa Blanca' 의 무휴면 소인경 생산에 매우 효과적이었다.

Keywords

References

  1. Plant Cell Tiss Org Cult v.22 Ghe development of dormancy in bulblets of Lilium specionsum generated in vitro;I. The effects of culture conditions Aguettaz P;Paffen A;Delvallee I;Van der Linde P;De Klerk GJ
  2. J Plant Physiol v.130 Cytokinins and ancymidol inhibit abscisic acid biosynthesis in Persea gratissima Cowan AK;Railton ID
  3. J Kor Soc Hort Sci v.39 Effects of low temperature and growth regulators on dormancy breaking of gladiolus cormlets procuced in vitro Goo DH;Park IS;Kim KW
  4. J Amer Soc Hort Sci v.115 Influence of in vitro generation temperature and post-in vitro cold storage duration on growth response of Lilium longiflorum Bulblets Higgins WS;Stimart DP
  5. HortSci v.20 Breaking bud dormancy in corms, tubers and trees with sulfur-containing compounds Hosoki T;Hiura H;Hamada M
  6. Heylnh Planta v.157 Induction of dormancy during seed development by endogenous abscisic acid;studies on abscisic acid deficient genotypes of Arbidopsis thaliana L Karssen CM;Brinkhorst-van der swan DLC;Breekland AE;Koornneef M
  7. J Kor Soc Hort Sci v.41 Production of non-dormant bulblets of Lilium oriental hybrid by control of culture temperature and growth regulators in vitro Kim EY;Choi JD;Park KI;Byun MS;Kim KW
  8. Kor J Plant Tiss Cult v.18 The effect of growth, temperature and sucrose on the dormancy in jLilium speciosum bulblets cultured in vitro Kim KS
  9. Physiol Plant v.90 Abscisic acid controls dormancy development and bulb formation in lily plantlets regenerated in vitro Kim KS;Davelaar E;De Klerk GJ
  10. J Kor Soc Hort Sci v.39 Effects of culture conditions on dormant status of in vitro regenerated Lillum oriental hybrid bulblets Kim KW;Kim JS;Choi JD;Park KI
  11. PhD thesis Studies on the factors of rest induction and its breaking in Vitis cultivars Kim WS
  12. J Kor Soc Hort Sci v.39 Effect of explant sources and plant growth regulators on bulblet formation in Lilium Lim S;Seon JH;Son SH;Han BH;Paek KY
  13. J Japan Soc Hort Sci v.64 Effects of cold treatment, BA and $GA_3$on enlargement and leaf emergence of in vitro cultured Lilium japonicum Thunb Masumi Y
  14. Physiol Plant v.15 A revised medium for rapid growth and bioassays with tobacco tissue culture Murashige T;Skoog F
  15. J Kor Soc Hort Sci v.24 Factors affecting regeneration ability and physiology of dormancy in the mature bublet segments of Lilium longiflorum in vitro Paek KY;Shin SH
  16. J Kor Soc Hort Sci v.41 Induction and proliferation of callus in Lilium oriental hybrid in vitro Park Kl;Choi JD;Byun MS;Choi JJ;Kwon KH;Kim KW
  17. J Plant Physiol v.135 Control of precocious corm and cormel formation in tissue culture Steinitz B;Lilien-Kipnis H
  18. Physiol Plant v.48 Differentiation in Lilium bulb-scales grown in vitro;Effect of activated charcoal, physiological age of bulbs and sucrose concentrations on differentiation and scale leaf formation in virto Takayama S;Misawa M
  19. J Kor Soc Hort Sci v.42 Dormancy breaking and in vitro growth of in vitro bulblets in Lilium oriental hybrid 'Casa Blanca' Yae BW;Han BH;Goo DH