Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Changes in Gibberellin, Abscisic Acid, Jasmonic Acid and Sugar Contents during Bulb Development and Secondary Growth Period in the Southern Type of Garlic (Allium sativum L.)

난지형 마늘의 인경 발육 및 이차생장 과정 중 Gibberellin, Abscisic Acid, Jasmonic Acid 및 당 함량 변화

  • Sohn, Eun-Young (School of Applied Biosciences, Kyungpook National University) ;
  • Kim, Yoon-Ha (School of Applied Biosciences, Kyungpook National University) ;
  • Jang, Soo-Won (Tobacco Research Group, Korea Tomorrow & Global Research Institute) ;
  • Kim, Jung-Tae (Cental Research Institute, Kyung Nong Corporation) ;
  • Lee, Hyun-Suk (Gumi Floricultural Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Seo, Dong-Hwan (Seongju Fruit Vegetable Experiment Station) ;
  • Lee, In-Jung (School of Applied Biosciences, Kyungpook National University)
  • Received : 2011.01.12
  • Accepted : 2011.04.25
  • Published : 2011.08.30
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Abstract

This research surveyed the effect of endogenous gibberellins (GA), abscisic acid (ABA), jasmonic acid (JA) and sugar contents on bulb development and secondary growth in the southern type of garlic (Allium sativum L.) cv. Sangdongmaneul and cv. Namdomaneul of Korea. Sangdongmaneul and Namdomaneul showed endogenouse GA, ABA, JA and sugar contents were significantly different in patterns with different cultivar. GA and JA contents of southern type of garlic reached maximum before bulb differentiation and then their contents were decreased. On the other hand, ABA contents gradually increased from bulbing (leaf sheath: 6.58-18.59 $ng{\cdot}g^{-1}$ DW) start. GA contents in Sangdongmaneul and Namdomaneul were not significantly different from each other. These results revealed that GA contents were not affected by secondary growth of garlic. While JA contents (33.0-76.16 $ng{\cdot}g^{-1}$ DW) of Namdomaneul were higher than Sandongmaneul so our results suggest that JA suppressed development of secondary growth of garlic. Total sugar contents of Sandongmaneul and Namdomaneul were not significantly different but total sugar contents were gradually increased after bulb differentiation in Sandongmaneul and Namdomaneul.

본 연구는 난지형 마늘인 '산동마늘'과 '남도마늘'의 인경비대 및 이차생장에 미치는 식물 생장 물질의 영향에 대해서 조사하였다. '산동마늘'과 '남도마늘'의 내생 GA, ABA, JA 함량 변화 양상은 품종군 간에 확연한 차이가 있었다. 난지형 마늘의 내생 GA와 JA는 인편 분화기 전에 최대에 달하여 그 이후 점차 감소하였다. 반면 ABA 함량(leaf sheath: 6.58-18.59$ng{\cdot}g^{-1}$ DW)은 비대개시기부터 점차 증가하는 것으로 조사되었다. 그러나 '산동마늘'과 '남도마늘'의 GA 함량을 분석한 결과는 두 품종간에 큰 차이를 보이지 않아 GA 함량은 마늘의 이차생장에는 크게 관여하지 않는 것으로 조사되었다. 반면 JA 함량(33.0-76.16$ng{\cdot}g^{-1}$ DW)은 이차생장이 적게 발생하는 '남도마늘'에서 '산동마늘'보다 높은 것으로 나타난 결과로 볼 때 JA가 마늘의 이차생장을 억제할 수 있을 것으로 추측 된다. '산동마늘'과 '남도마늘'간에 총 당 함량은 차이는 보이지 않았으며, 당 함량은 인편분화기 이후 점진적으로 증가하는 것으로 나타났다.

Keywords

References

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