A gene family encoding glutathione peroxidase homologues in Hordeum vulgare (barley)

被引:62
作者
Churin, Y [1 ]
Schilling, S [1 ]
Börner, T [1 ]
机构
[1] Humboldt Univ, Div Genet, Inst Biol, D-10115 Berlin, Germany
关键词
glutathione peroxidase; oxidative stress; chloroplast; peroxisome; Hordeum vulgare;
D O I
10.1016/S0014-5793(99)01208-9
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have isolated and characterised three barley cDNAs encoding glutathione peroxidase (GPX) homologues, designated HVGPH1, HVGPH2 and HVGPH3, HVGPH1 may represent a cytosolic form of GPX, The structure of the HVGPH2 N-terminal domain is typical for a plastid transit peptide. A potential peroxisomal targeting sequence occurs near the N-terminus of HVGPH3, Transcript levels of HVGPH1 and HVGPH2 were increased in leaves undergoing stress. In contrast, HVGPH3 mRNA accumulation showed a negative response to stress. Our data indicate that the barley genome bears a small gene family encoding GPX homologues differing in their function and cellular localisation. (C) 1999 Federation of European Biochemical Societies.
引用
收藏
页码:33 / 38
页数:6
相关论文
共 59 条
[21]   COMPARATIVE INVESTIGATION OF ACTION OF SEVERAL CHLOROSIS-INDUCING HERBICIDES ON BIOGENESIS OF CHLOROPLASTS AND LEAF MICROBODIES [J].
FEIERABEND, J ;
SCHUBERT, B .
PLANT PHYSIOLOGY, 1978, 61 (06) :1017-1022
[22]  
Flohe L., 1982, LIPID PEROXIDES BIOL, P149
[23]  
FLOHE L, 1976, GLUTATHIONE METABOLI, P115
[24]   Hydrogen peroxide- and glutathione-associated mechanisms of acclimatory stress tolerance and signalling [J].
Foyer, CH ;
LopezDelgado, H ;
Dat, JF ;
Scott, IM .
PHYSIOLOGIA PLANTARUM, 1997, 100 (02) :241-254
[25]  
GARABEDIAN MJ, 1993, GENE TRANSCRIPTION P, P243
[26]  
GOLBECK JH, 1992, ANNU REV PLANT PHYS, V43, P293, DOI 10.1146/annurev.pp.43.060192.001453
[27]   Salt and oxidative stress: similar and specific responses and their relation to salt tolerance in Citrus [J].
GuetaDahan, Y ;
Yaniv, Z ;
Zilinskas, BA ;
BenHayyim, G .
PLANTA, 1997, 203 (04) :460-469
[28]  
Gutteridge J. M. C., 1989, FREE RADICALS BIOL M
[29]   ENZYMES AS RNA-BINDING PROTEINS - A ROLE FOR (DI)NUCLEOTIDE-BINDING DOMAINS [J].
HENTZE, MW .
TRENDS IN BIOCHEMICAL SCIENCES, 1994, 19 (03) :101-103
[30]   RIBOSOME-DEFICIENT PLASTIDS AFFECT TRANSCRIPTION OF LIGHT-INDUCED NUCLEAR GENES - GENETIC-EVIDENCE FOR A PLASTID-DERIVED SIGNAL [J].
HESS, WR ;
MULLER, A ;
NAGY, F ;
BORNER, T .
MOLECULAR AND GENERAL GENETICS, 1994, 242 (03) :305-312