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'Beast' 장미 꽃목굽음지의 생장, 화기 및 내생 호르몬 변화

Growth, Floral Morphology, and Phytohormone Levels of Flowering Shoots with Bent Peduncle in Greenhouse-grown Cut Rose 'Beast'

  • 서지현 (서울시립대학교 환경원예학과) ;
  • 김완순 (서울시립대학교 환경원예학과)
  • Seo, Ji Hyeon (Department of Environmental Horticulture, University of Seoul) ;
  • Kim, Wan Soon (Department of Environmental Horticulture, University of Seoul)
  • 투고 : 2013.05.29
  • 심사 : 2013.08.20
  • 발행 : 2013.12.31

초록

꽃목굽음 현상(bent peduncle phenomenon, BPP)은 절화장미의 생산성 저하를 유발하는 생리적 장해의 하나로 알려져 있으나, 관련 기작이 명확히 구명되어 있지 않아 아직까지 대책 마련이 곤란한 실정이다. 이를 해결하고자 국내육성 장미 품종인 'Beast'(Rosa hybrida L. 'Beast')를 대상으로 꽃목굽음지의 화기형태, 생장, 내생 호르몬 변화 특성을 분석하였다. 화기형태 관찰을 통해 꽃목굽음지는 5개의 꽃받침조각 중 하나가 조기에 형성되고 엽상화되면서 대화현상을 나타냈다. 연중 BPP 발생 빈도는 계절에 따라 5-20%로 여름철 고온기에 급증하였다. 꽃목굽음지는 정상지와 비교하여 꽃목굽음 증상 외 생장량과 속도면에서 차이를 보이지 않았으나, 꽃으로의 동화산물 분배는 현저하게 감소되었다. 정상지와는 달리 꽃목굽음지에서의 내생 호르몬 IAA 함량은 화아발육기간 내내 높게 유지되었으나, $GA_3$ 함량은 차이를 보이지 않았다. 본 연구에서 BPP는 고온과 관련된 특정 꽃받침조각의 엽상화, 대화현상을 나타내면서 꽃으로의 동화산물 불균형 분배, 높은 IAA에 의해 유발되는 것으로 보인다.

The bent peduncle phenomenon (BPP) is known as a kind of physiological disorders found in cut rose plants, which causes the reduction of cut flower yields. As yet unknown mechanisms, however, it has not been easy to find solutions for BPP. To address this challenge, this study was conducted to investigate the characteristics of floral morphology, growth, and endogenous phytohormone level of BPP shoots in cut rose plants (Rosa hybrida L. 'Beast'). Morphological observation confirmed the fact that BPP was accompanied by the early formation and being phyllody of a specific sepal among five sepals, which gave rise to peduncle bending in the upper part of the phyllody with fasciation. Year-round BPP frequency in 'Beast' cultivar was in the range of 5 to 20% with seasonal change, increasing rapidly with an average temperature rise in summer. Except bent peduncle, the BPP shoots appeared to grow normally in terms of speed and size of floral development in comparison with normal. However, carbohydrate distribution to the floral part in BPP shoots was significantly reduced. The level of endogenous IAA (3-Indoleacetic acid) within the floral part in BPP shoots was highly maintained during floral development, in contrast to normal shoots. $GA_3$ contents were not significantly different between normal and BPP shoots. This study indicates that BPP would be induced by a series of courses: abnormally early formation of a specific sepal relative to high temperature, being phyllody of the sepal with fasciation, and continuous supply of endogenous IAA by phyllody.

키워드

참고문헌

  1. Akarui, Y. and U. Hamretomu. 1972. Studies on the crooked neck of carnation. II. Effect of day length and temperature on occurrence of crooked neck. J. Hyogo Agri. Expt. Res. 20:115-118.
  2. Aloni, R., E. Aloni, and M. Langhans. 2006. Role of auxin in regulating Arabidopsis flower development. Planta 223:315-328. https://doi.org/10.1007/s00425-005-0088-9
  3. An, D.C., Y.D. Chin, J.C. Hawng, J.G. Kim, Y.M. Chung, and B.R. Jeong. 2002. Occurrence state of flower neck malformation and morphological observation of malformed tissue of cut rose. J. Kor. Soc. Hort. Sci. 43:623-627.
  4. Cohat, J. 1993. Gladiolus, p. 297-320. In: A.D. Hertogh and M.L. Nard. (eds.). The physiology of flower bulbs. Elsevier Science Publishers B.V., Amsterdam, The Netherlands.
  5. Davenport, T.L. 2000. Processes influencing floral initiation and bloom: The role of phytohormones in a conceptual flowering model. Hort. Technol. 10:734-739.
  6. Fambrini, M., E. Bonsignori, F. Rapparini, G. Cionini, V. Michelotti, D. Beritini, R. Baraldi, and C. Rugliesi. 2006. Stem fascinated, a recessive mutation in Sunflower (Helianthus annuus), alters plant morphology and auxin level. Ann. Bot. 98:715-730 https://doi.org/10.1093/aob/mcl153
  7. Halevy, A.H. 1972. Phytohormones in flowering regulation of self-inductive plants. Proc. 18th Int. Hort. Congr. 5:187-198.
  8. Halevy, A.H. and N. Zieslin. 1969. The development and causes of petal blackening and malformation of 'Baccara' rose flower. Acta Hort. 14:149-157.
  9. Hanano, S., M.A. Domagalska, F. Nagy, and S.J. Davis. 2006. Multiple phytohormones influence distinct parameters of the plant circadian clock. Genes Cells 11:1381-1392. https://doi.org/10.1111/j.1365-2443.2006.01026.x
  10. Hiroi, A., T. Tamoz, and H. Osabu. 1972. Studies about crooked neck of carnation. 1. Effects of growing environments on occurrence of crooked neck. The research report of Heigo Agricultural Experiment Station 20:113-114.
  11. Horridge, J.S. and K.E. Cockshull. 1974. Flower initiation and development in the glasshouse rose. Sci. Hort. 2:273-284. https://doi.org/10.1016/0304-4238(74)90036-3
  12. Kim, W.S. and J.H. Lieth. 2012. Simulation of year-round plant growth and nutrient uptake in Rosa hybrida over flowering cycles. Hort. Environ. Biotechnol. 53:193-203 https://doi.org/10.1007/s13580-012-0054-y
  13. Masters, M.T. 1869. Vegetable teratology: An account of the principal deviations from the usual construction of plants (No. 45). The Ray Society by Robert Hardwicke, London. p. 240-257.
  14. Miao, M., X. Yang, X. Han, and K. Wang. 2011. Sugar signaling is involved in the sex expression response of monoecious cucumber to low temperature. J. Exp. Bot. 62:797-804. https://doi.org/10.1093/jxb/erq315
  15. Moe, R. 1971. Factors affect in flower abortion and malformation in roses. Physiol. Plant 24:291-300. https://doi.org/10.1111/j.1399-3054.1971.tb03494.x
  16. Seo, J.H. and W.S. Kim. 2012. Seasonal changes in bent peduncle phenomenon of greenhouse roses. Kor. J. Hort. Sci. Technol. 30(Suppl. II):142. (Abstr.)
  17. Sim, S., A. Rowhani, and D. Golino. 2004. Phyllody in roses. American Rose 39(18):32-34.
  18. Takahiro, T., K. Tasuo, M. Hiroshi, and M. Yuriko. 1999. Histological observations on crooked neck, its degree and rate of development among clonal lines of Chrysanthemum cv. 'Shuhonochikara'. J. Japan. Soc. Hort. Sci. 68:655-660. https://doi.org/10.2503/jjshs.68.655
  19. Tang, Y. and H.T. Knap, 1998. Fasciation mutation enhances meristematic activity and alters pattern formation in soybean. J. Plant Sci. 159:249-260. https://doi.org/10.1086/297546
  20. Yu, H., T. Ito, Y. Zhao, J. Peng, P. Kumar, and M. Meyerowitz. 2004. Floral homeotic genes are targets of gibberellin signaling in flower development. PNAS 101:7827-7832. https://doi.org/10.1073/pnas.0402377101
  21. Zaccai, M., R. Ackerman, O. Genis, J. Riov, and M. Zik. 2009. The bent peduncle phenomenon in roses is a developmental process involving auxin. Plant Sci. 176:736-743. https://doi.org/10.1016/j.plantsci.2009.02.014

피인용 문헌

  1. Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose ( Rosa sp. ) vol.21, pp.4, 2013, https://doi.org/10.3390/ijms21041360