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Changes in Photosynthetic Performance and Water Relation Parameters in the Seedlings of Korean Dendropanax Subjected to Drought Stress
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건조 스트레스에 따른 황칠나무 유묘의 광합성과 수분특성인자 변화

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Type
Academic journal
Author
Kyeong Cheol Lee (국립생태원)
Journal
The Korean Society of Medicinal Crop Science Korean Journal of Medicinal Crop Science Vol.26 No.2 KCI Excellent Accredited Journal SCOPUS
Published
2018.4
Pages
181 - 187 (7page)
DOI
10.7783/KJMCS.2018.26.2.181

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Changes in Photosynthetic Performance and Water Relation Parameters in the Seedlings of Korean Dendropanax Subjected to Drought Stress
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Research history (5)

2018

Changes in Photosynthetic Performance and Water Relation Parameters in the Seedlings of Korean Dendropanax Subjected to Drought Stress
Kyeong Cheol Lee Korean Journal of Medicinal Crop Science 2018.04 Academic journal

2017

Photosynthetic Responses and Growth Performances Affected by Organic Compost Level in Seedling of Synurus deltoides (Aiton) Nakai
lee kyeong cheol 농업생명과학연구 2017.08 Academic journal
Drought Stress Influences Photosynthesis and Water Relations Parameters of Synurus deltoides
Lee ,  Kyeong-Cheol ,  Lee 한국산림과학회지 2017.01 Academic journal

2013

Drought stress influences photosynthesis and water relations parameters of Synurus deltoides
이경철 ,  한상섭 ,  왕명현 한국산림휴양학회 학술발표회 자료집 2013.04 Proceeding

2012

Changes of Characteristics Related to Photosynthesis in Synurus deltoides under Different Shading Treatments
Kyeong Cheol Lee ,  Hee Sun Noh ,  Jong Whan Kim and others 2 Korean Journal of Medicinal Crop Science 2012.10 Academic journal
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Background: This study aimed to investigate out the influence of drought stress on the physiological responses of Dendropanax morbifera seedlings.
Methods and Results: Drought stress was induced by discontinuing water supply for 30 days. Under drought stress, photosynthetic activity was significantly reduced with decreasing soil water content (SWC), as revealed by the parameters such as Fv/Fm, maximum photosynthetic rate (P<SUB>N max</SUB>), stomatal conductance (g<SUB>s</SUB>), stomatal transpiration rate (E), andintercellular CO₂ concentration (Ci). However, water use efficiency (WUE) was increased by 2.5 times because of the decrease in g<SUB>s</SUB> to reduce transpiration. Particularly, E and g<SUB>s</SUB> were remarkably decreased when water was withheld for 21 days at 6.2% of SWC. Dendropanax morbifera leaves showed osmotic adjustment of −0.30㎫ at full turgor and −0.13 ㎫ at zero turgor. In contrast, the maximum bulk modulus of elasticity (E<SUB>max</SUB>) did not change significantly. Thus, Dendropanax morbifera seedlings could tolerate drought stress via osmotic adjustment.
Conclusions: Drought avoidance mechanisms of D. morbifera involve reduction in water loss from plants, through the control of stomatal transpiration, and reduction in cellular osmotic potential. Notably photosynthetic activity was remarkably reduced, to approximately 6% of the SWC.
#Dendropanax morbifera #Ocmotic Adjustment #Photosynthesis #Soil Water Contents #Stomatal Conductance

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References (35)

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안나영 / 2014 / Streptozotocin에 의해 유도된 당뇨모델동물에서 황칠나무 (Dendropanax morbifera Leveille)의 열수추출물과 에탄올추출물의 당뇨 질환 개선 효능 / Journal of Nutrition and Health 47(6):394~402 dbpia 배기화 / 2009 / 황칠나무(Dendropanax morbifera)의 부정근 유도 및 기내증식조건 / Journal of Plant Biotechnology 36(2):163~169 dbpia 전영문 / 2010 / 황칠나무군락의 식생구조와 입지환경 분석을 통한 생육가능지역 추정 / 환경생물 28(1):30~39 dbpia Davies FS / 1979 / Diurnal and seasonal changes in leaf water potential components and elastic properties in response to water stress in apple trees / Physiologia Plantarum 46:109~114 Crossref Deligoz A. / 2012 / Morphological and physiological differences between bareroot and container Juniperus excelsa seedlings / Turkish Journal of Agriculture and Forestry 36:619~628 google schola

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