PMID: 9530872Apr 8, 1998Paper

Expression of NADH-dependent glutamate synthase protein in the epidermis and exodermis of rice roots in response to the supply of ammonium ions

Planta
K IshiyamaTomoyuki Yamaya

Abstract

The mRNA and protein for NADH-dependent glutamate synthase (NADH-GOGAT; EC 1.4.1.14) in root tips of rice (Oryza sativa L. cv. Sasanishiki) plants increases dramatically within 12 h of supplying a low concentration (> 0.05 mM) of ammonium ions (T. Yamaya et al., 1995, Plant Cell Physiol 36: 1197-1204). To identify the specific cells which are responsible for this rapid increase, the cellular localization of NADH-GOGAT protein was investigated immunocytologically with an affinity-purified anti-NADH-GOGAT immunoglobulin G. When root tips (> 1 mm) of rice seedlings which had been grown for 26 d in water were immuno-stained, signals for the NADH-GOGAT protein were detected in the central cylinder, in the apical meristem, and in the primordia of the secondary roots, Signals for ferredoxin-dependent GOGAT (Fd-GOGAT; EC 1.4.7.1) protein were also seen in the same three areas. When the roots were supplied with 1 mM ammonium ions for 24 h, there were strong signals for the NADH-GOGAT protein in two cell layers of the root surface, i.e. epidermis and exodermis, in addition to the cells giving signals in the absence of ammonium ions. The supply of ammonium ions was less effective on the profile of signals for Fd-GOGAT. Although the supply...Continue Reading

Citations

Sep 28, 1998·Biochimica Et Biophysica Acta·S GotoT Yamaya
Feb 15, 2002·The Plant Journal : for Cell and Molecular Biology·Muriel LancienGloria M Coruzzi
May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Arthur Grossman, Hideki Takahashi
Jan 25, 2005·Nephron. Experimental Nephrology·Koki MatsuoAkihisa Kanamaru
Dec 3, 2015·Plant & Cell Physiology·Laure GaufichonAkira Suzuki
May 28, 2005·The Plant Journal : for Cell and Molecular Biology·Mayumi TabuchiTomoyuki Yamaya
Jun 25, 2016·Journal of Plant Physiology·Anil Kumar Nalini ChandranChang-Deok Han
Aug 31, 2000·Plant & Cell Physiology·K NakanoT Yamaya
Mar 26, 2002·Journal of Experimental Botany·María Fernanda SuárezFrancisco M Cánovas
May 25, 2001·Journal of Experimental Botany·A K Tobin, T Yamaya
Jul 26, 2003·Plant & Cell Physiology·Yutaka SonodaJunji Yamaguchi
Jan 1, 2004·Plant & Cell Physiology·Yutaka SonodaJunji Yamaguchi
Jan 23, 2018·The Plant Journal : for Cell and Molecular Biology·Marcel P BeierToshihiko Hayakawa

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