PMID: 11604456Oct 18, 2001Paper

Activities of starch hydrolytic enzymes and sucrose-phosphate synthase in the stems of rice subjected to water stress during grain filling

Journal of Experimental Botany
Jianchang YangQ Zhu

Abstract

To understand the effect of water stress on the remobilization of prestored carbon reserves, the changes in the activities of starch hydrolytic enzymes and sucrose-phosphate synthase (SPS) in the stems of rice (Oryza sativa L.) during grain filling were investigated. Two rice cultivars, showing high lodging-resistance and slow remobilization, were grown in the field and subjected to well-watered (WW, psi(soil)=0) and water-stressed (WS, psi(soil)=-0.05 MPa) treatments 9 d after anthesis (DAA) till maturity. Leaf water potentials of both cultivars markedly decreased during the day as a result of WS treatment, but completely recovered by early morning. WS treatment accelerated the reduction of starch in the stems, promoted the reallocation of prefixed (14)C from the stems to grains, shortened the grain filling period, and increased the grain filling rate. More soluble sugars including sucrose were accumulated in the stems under WS than under WW treatments. Both alpha- and beta-amylase activities were enhanced by the WS, with the former enhanced more than the latter, and were significantly correlated with the concentrations of soluble sugars in the stems. The other two possible starch-breaking enzymes, alpha-glucosidase and starch...Continue Reading

Citations

Apr 28, 2010·Journal of Experimental Botany·Jianchang Yang, Jianhua Zhang
Dec 28, 2016·Environmental Science and Pollution Research International·Adnan Noor ShahRiaz Ahmad
Jul 10, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Juan José Reyes-PérezBernardo Murillo-Amador
Nov 1, 2007·Plant, Cell & Environment·Beáta BarnabásAttila Fehér
Jan 2, 2014·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Rachana DeviNarinder Kaur
Jan 18, 2006·The New Phytologist·Jianchang Yang, Jianhua Zhang
Oct 28, 2010·Journal of Integrative Plant Biology·Lie-Bo ShuHan-Wei Mei
Jul 23, 2008·Plant, Cell & Environment·Sonia M Cuellar-OrtizAlejandra A Covarrubias
May 20, 2008·The Plant Journal : for Cell and Molecular Biology·Ute LehmannWolfram Weckwerth
Jan 18, 2011·Biological Trace Element Research·Muhammad Yasin AshrafM Sajid Aqeel Ahmad
Mar 10, 2017·The New Phytologist·Matthias Thalmann, Diana Santelia
Jan 29, 2019·Journal of Experimental Botany·Guan-Qun WangJianhua Zhang
Jun 26, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Takayuki KashiwagiKen Ishimaru
Jan 1, 2010·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Bhaskar ChoudhuryAsok K Biswas
May 27, 2014·Frontiers in Plant Science·Patricia Coello, Eleazar Martínez-Barajas
Dec 19, 2013·PloS One·José Ribamar Costa Ferreira NetoEderson Akio Kido
Aug 17, 2019·Plant Physiology and Biochemistry : PPB·Prathap VAruna Tyagi
Jan 24, 2004·Plant Physiology·Takayuki Kashiwagi, Ken Ishimaru
Aug 18, 2004·Journal of Plant Physiology·A B Jha, R S Dubey
Feb 8, 2005·Plant Physiology and Biochemistry : PPB·Ken IshimaruTakayuki Kashiwagi

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