Aluminium-induced drought and oxidative stress in barley roots

被引：56

作者：

Tamás, L ^{[1
]}

Huttová, J ^{[1
]}

Mistrík, I ^{[1
]}

Simonovicová, M ^{[1
]}

Siroká, B ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Bot, SK-84523 Bratislava, Slovakia

来源：

JOURNAL OF PLANT PHYSIOLOGY | 2006年 / 163卷 / 07期

关键词：

Al uptake; cell death; dehydrin; oxidative stress; root growth inhibition;

D O I：

10.1016/j.jplph.2005.08.012

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The aim of the present study was to examine the relation between At accumulation in root tissues, root growth inhibition, root water content, cell viability and expression of oxidative and drought stress-related genes in barley roots growing on the fitter paper. At-induced root growth inhibition correlated with At uptake and cell death. Water content of At-treated root represented only half of the control one. The expression of the dehydrin gene dhn4, which is a marker for drought stress in plant tissues, was strongly induced during AI. stress. At treatment also induced expression of oxidative stress-related genes such as glutathione peroxidase (gpx), pathogen-related peroxidase (prx8), glutathione reductase (gr) and dehydroascorbate reductase (dhar). The present results suggest correlation between At uptake, At-induced drought stress, oxidative stress, cell death and root growth inhibition. (c) 2005 Elsevier GmbH. All rights reserved.

引用

页码：781 / 784

页数：4

共 24 条

[1] PLANT WATER RELATIONS AS AFFECTED BY HEAVY-METAL STRESS - A REVIEW [J].

BARCELO, J ;

POSCHENRIEDER, C .

JOURNAL OF PLANT NUTRITION, 1990, 13 (01) :1-37

[2] Aluminum-induced oxidative stress in maize [J].

Boscolo, PRS ;

Menossi, M ;

Jorge, RA .

PHYTOCHEMISTRY, 2003, 62 (02) :181-189

[3] Barley Cbf3 gene identification, expression pattern, and map location [J].

Choi, DW ;

Rodriguez, EM ;

Close, TJ .

PLANT PHYSIOLOGY, 2002, 129 (04) :1781-1787

[4] Dehydrins: A commonality in the response of plants to dehydration and low temperature [J].

Close, TJ .

PHYSIOLOGIA PLANTARUM, 1997, 100 (02) :291-296

[5] Characterization of oxalate oxidase and cell death in Al-sensitive and tolerant wheat roots [J].

Delisle, G ;

Champoux, M ;

Houde, M .

PLANT AND CELL PHYSIOLOGY, 2001, 42 (03) :324-333

[6] MECHANISMS OF OXYGEN ACTIVATION DURING PLANT STRESS [J].

ELSTNER, EF ;

OSSWALD, W .

PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION B-BIOLOGICAL SCIENCES, 1994, 102 :131-154

[7] Different mechanisms of four aluminum (Al)-resistant transgenes for Al toxicity in Arabidopsis [J].

Ezaki, B ;

Katsuhara, M ;

Kawamura, M ;

Matsumoto, H .

PLANT PHYSIOLOGY, 2001, 127 (03) :918-927

[8] Alterations in Cd-induced gene expression under nitrogen deficiency in Hordeum vulgare [J].

Finkemeier, I ;

Kluge, C ;

Metwally, A ;

Georgi, M ;

Grotjohann, N ;

Dietz, KJ .

PLANT CELL AND ENVIRONMENT, 2003, 26 (06) :821-833

[9] THE EFFECTS OF CADMIUM ON THE FLUIDITY AND H+-ATPASE ACTIVITY OF PLASMA-MEMBRANE FROM SUNFLOWER AND WHEAT ROOTS [J].

FODOR, E ;

SZABONAGY, A ;

ERDEI, L .

JOURNAL OF PLANT PHYSIOLOGY, 1995, 147 (01) :87-92

[10] Mechanisms of plant desiccation tolerance [J].

Hoekstra, FA ;

Golovina, EA ;

Buitink, J .

TRENDS IN PLANT SCIENCE, 2001, 6 (09) :431-438

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