Earticle

초록

영어

An efficient method to select drought tolerant Korean native plants using in vitro culture system was established in this study. While the plant growths and root inductions of each plant were proportionately affected by concentrations of mannitol on in vitro culturing seven plant species to test tolerance to osmotic stress, growth index (GI) and number of root induction of Chrysanthemi zawadskii var. latilobum and Dianthus chinensis var. semperflorens plantlets were higher than the others in 125mM mannitol. In test with polyethylene glycol (PEG), plantlets of C. zawadskii var. latilobum and D. chinensis var. semperflorens showed higher GI and number of root induction than the others in 33.3mM. On testing whether the well grown plants under osmotic stress are tolerant to virtual drought stress, there were significant differences in the withering rates of C. zawadskii var. latilobum and D. chinensis and those of were Aster yomena and Centaurea cyanus after 12 days without watering. It was found that significantly lower stomata numbers were shown in both drought tolerant plants than the sensitive plants. Averages of the stomata circumferences and the stomata area in the plantlets of the tolerant species were larger than those of the sensitive plants D. chinensis var. semperflorens showed the lowest transpiration level per unit area. The highest stomatal area per unit area was found in C. zawadskii, followed by D. chinensis var. semperflorens, Aster yomena and C. cyanus. In conclusion, C. zawadskii var. latilobum and D. chinensis var. semperflorens were more tolerant to drought than other two species. Furthermore in vitro selection was successfully used to screen drought tolerance species of native plant species.

목차

Abstract
 Introduction
 Material and Methods
  Plant materials
  In vitro selection of drought tolerant plants by treating osmotic agents
  Ex vitro tests on drought tolerance of the selected plants
  Statistical analyses
 Results and Discussion
  Responses of in vitro plants against mannitol treatments
  Responses of in vitro plants against PEG treatments
  Ex vitro test for drought tolerance of selected plants species and those characteristics of stomata
 Acknowledgements
 References

키워드

저자

• Dong-Jin Park [ Institute of Agriculture & Life Science, Gyeongsang National University, These authors were contributed equally to this work as co-first authors ]
• Hyeon-Jeong Im [ Plant Propagation and Reproduction Division, Baekdudaegan National Arboretum, Bongwa, Republic of Korea, These authors were contributed equally to this work as co-first authors. ]
• Mi-Jin Jeong [ Plant Conservation Division, Korea National Arboretum of the Korea Forest Service, Pocheon, Republic of Korea ]
• Hyeon-Jin Song [ Division of Seed & Seedling Management, National Forest Seed & Variety Center, Chungju, Republic of Korea ]
• Hak-Gon Kim [ Plant Propagation and Reproduction Division, Baekdudaegan National Arboretum, Bongwa, Republic of Korea ]
• Gang-Uk Suh [ Plant Conservation Division, Korea National Arboretum of the Korea Forest Service, Pocheon, Republic of Korea ]
• Balkrishna Ghimire [ Plant Conservation Division, Korea National Arboretum of the Korea Forest Service, Pocheon, Republic of Korea ]
• Myung-Suk Choi [ Plant Propagation and Reproduction Division, Baekdudaegan National Arboretum, Bongwa, Republic of Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634