초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Elucidation of defensive mechanisms of halophytes through ROS regulation by indole derivatives

2019년 8월 28일 15시 09분 13초
INOR.P-107 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (목요일) 11:00~12:30
Inorganic Chemistry
저자 및
Heeseon Yoo, Ka Young Son, Seung Jae Lee*
Department of Chemistry and Institute for Molecular Biology and Genetics, Chonbuk National University, Korea
Mechanistic studies of halophytes are urgent areas of agricultural research due to the increase in saline-contaminated lands and irrigated fields worldwide. The halophyte, Suaeda glauca (S. glauca), has many advantages in terms of biomass and saline elimination due to its large mass and well-developed phenotype on seashores, although its mechanistic features and growing specificities still require systematic investigation. Preliminary studies have indicated that secondary metabolites, including alkaloids, are key metabolites for achieving salt tolerance and that indole derivatives retard the inhibition of growth and development in halophytes. Metabolomic studies have validated that indole-3-carboxylic acid (ICA) and indole-3-acetic acid (IAA) accumulate in halophytes under saline conditions. In this report, S. glauca in Hoagland's solution in the absence or presence of indoles to elucidate physiological features via systematic monitoring. The results confirmed that the optimal growth and development of S. glauca in 50 mM NaCl, and the morphology, such as the number of branches, shoot lengths, and fresh and dry weights, were improved by exogenous ICA treatment. The cation concentrations in roots, shoots and leaves were investigated to examine the ionic imbalance in response to saline treatment, and the results demonstrated that sodium ions accumulated to high concentrations in leaves. The levels of calcium and potassium ions in root were maintained at 50 mM NaCl, an optimal growth condition, but ICA and IAA did not regulate the ion concentrations.