Amelioration of lead and mercury effects on germination and rice seedling growth by antioxidants

被引：48

作者：

Mishra, A ^{[1
]}

Choudhuri, MA ^{[1
]}

机构：

[1] Univ Burdwan, Dept Bot, Plant Physiol & Biochem Lab, Burdwan 713104, W Bengal, India

来源：

BIOLOGIA PLANTARUM | 1998年 / 41卷 / 03期

关键词：

ascorbic acid; cysteine; germination index; Oryza sativa; reduced-glutathione; alpha-tocopherol; tolerance index;

D O I：

10.1023/A:1001871015773

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Germination of two rice (Oryza sativa L.) cultivars (Ratna and LR 36) in the presence of 10 mu M PbCl2 and 10 mu M HgCl2 decreased germination percentage, germination index, shoot/root length, tolerance index and dry mass of shoots and roots. Mercury was more toxic than lead. Reduced glutathione (GSH), cysteine (Cys), ascorbic acid, and alpha-tocopherol alleviated the adverse effects of these metals on plants in the order GSH > Cys > ascorbic acid > alpha-tocopherol. The effects were more pronounced in tolerant cultivar IR 36 than in the relatively susceptible cultivar Ratna.

引用

页码：469 / 473

页数：5

共 16 条

[1] BIOSYNTHESIS AND ANTIOXIDANT FUNCTION OF GLUTATHIONE IN PLANTS [J].

ALSCHER, RG .

PHYSIOLOGIA PLANTARUM, 1989, 77 (03) :457-464

[2] THE ROLE OF ASCORBATE IN DROUGHT-TREATED COCHLEARIA-ATLANTICA POBED AND ARMERIA-MARITIMA (MILL) WILLD [J].

BUCKLAND, SM ;

PRICE, AH ;

HENDRY, GAF .

NEW PHYTOLOGIST, 1991, 119 (01) :155-160

[3] LOWERING OF ENDOGENOUS LIPOXYGENASE ACTIVITY IN PISUM-SATIVUM FOLIAGE BY CYTOKININ AS RELATED TO SENESCENCE [J].

GROSSMAN, S ;

LESHEM, YY .

PHYSIOLOGIA PLANTARUM, 1978, 43 (04) :359-362

[4]

HSU FH, 1992, BOT BULL ACAD SINICA, V33, P335

[5]

KACABOVA P, 1986, PHOTOSYNTHETICA, V20, P411

[6] THE DIPHENYL ETHER HERBICIDE OXYFLUORFEN - ACTION OF ANTIOXIDANTS [J].

KUNERT, KJ ;

BOGER, P .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1984, 32 (04) :725-728

[7]

MESMAR MN, 1991, ACTA BIOL HUNG, V42, P331

[8]

MHATRE GN, 1982, J ENVIRON BIOL, V33, P53

[9]

Mishra A, 1997, SEED SCI TECHNOL, V25, P263

[10] GROWTH AND METABOLISM OF GERMINATING RICE (ORYZA-SATIVA L )SEEDS AS INFLUENCED BY TOXIC CONCENTRATIONS OF LEAD [J].

MUKHERJI, S ;

MAITRA, P .

ZEITSCHRIFT FUR PFLANZENPHYSIOLOGIE, 1977, 81 (01) :26-33

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