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ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

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  • ENGLISH
  • P-ISSN2287-8327
  • E-ISSN2288-1220
  • SCOPUS, KCI

Enhanced Resistance of Transgenic Sweetpotato (Ipomoea batatas Lam.) Plants to Multiple Environmental Stresses Treated with Combination of Water Stress, High Light and High Temperature Stresses

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2006, v.29 no.5, pp.479-484
송선화 (청주대학교)
곽상수 (한국생명공학연구원)
임순 (강원대학교)
권석윤 (한국생명공학연구원)
이행순 (한국생명공학연구원)
박용목 (청주대학교)

Abstract

Ecophysiological parameters of non-transgenic sweetpotato (NT) and transgenic sweetpotato (SSA)plants were compared to evaluate their resistance to multiple environmental stresses. Stomatal conductance and transpiration rate in NT plants decreased markedly from Day 6 after water was withheld, whereas those values in SSA plants showed relatively higher level during this period. Osmotic potential in SSA plants was reduced more negatively as leaf water potential decreased from Day 8 after dehydration treatment, while such reduction was not shown in NT plants under water stresed condition. SSA plants showed les membrane damage than photochemical efficiency of PS II (Fv/Fm) in NT plants markedly decreased, while that in SSA plants was maintained relatively higher level. This trend of changes in Fv/Fm between SSA plants and NT plants was more conspicuous as simultaneously treated with water stress, high light and high temperature stress. These results indicate that SSA plants are more resistive than NT plants to multiple environmental streses and the enhanced resistive characteristics in SSA plants are based on osmotic adjustment under water stres condition and tolerance of membrane.

keywords
Electrolyte leakage, Multiple environmental streses, Osmotic adjustment, Sweetpotato, Transgenic plantSong, Sun-Wha et al. J. Ecol. Field Biol. 29 (5) 480stress inducible SWPA2 promoter (Lim et al. 2004). Here we evaluate ecophysiologically resistiv, Electrolyte leakage, Multiple environmental streses, Osmotic adjustment, Sweetpotato, Transgenic plantSong, Sun-Wha et al. J. Ecol. Field Biol. 29 (5) 480stress inducible SWPA2 promoter (Lim et al. 2004). Here we evaluate ecophysiologically resistiv

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Journal of Ecology and Environment