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Titolo:
Using capillary electrophoresis to measure Cu Zn superoxide dismutase concentration in leaves of wheat genotypes differing in tolerance to zinc deficiency
Autore:
Yu, Q; Worth, C; Rengel, Z;
Indirizzi:
Univ Western Australia, Fac Agr, Nedlands, WA 6907, Australia Univ WesternAustralia Nedlands WA Australia 6907 nds, WA 6907, Australia
Titolo Testata:
PLANT SCIENCE
fascicolo: 2, volume: 143, anno: 1999,
pagine: 231 - 239
SICI:
0168-9452(19990531)143:2<231:UCETMC>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
HIGH LIGHT-INTENSITY; MEMBRANE-PERMEABILITY; ASCORBATE PEROXIDASE; OXIDATIVE STRESS; PEA-PLANTS; CHLOROPLASTS; EFFICIENCY; CULTIVARS; OXYGEN; ROOTS;
Keywords:
capillary electrophoresis; genotypes; oxidative stress; superoxide dismutase; zinc deficiency; wheat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Rengel, Z Univ Western Australia, Fac Agr, Nedlands, WA 6907, Australia Univ Western Australia Nedlands WA Australia 6907 07, Australia
Citazione:
Q. Yu et al., "Using capillary electrophoresis to measure Cu Zn superoxide dismutase concentration in leaves of wheat genotypes differing in tolerance to zinc deficiency", PLANT SCI, 143(2), 1999, pp. 231-239

Abstract

Three genotypes of Triticum aestieum L. and one genotype of Triticum turgidum conv. durum differing in tolerance to Zn deficiency were grown in chelate-buffered nutrient solution with or without Zn supply for up to 22 days. Genotypes that were classified as sensitive to Zn deficiency developed visual symptoms of Zn deficiency on on leaves and had the shoot/root ratio reduced, while those classified as tolerant to Zn deficiency showed neither visual symptoms nor decline in the shoot/root ratio when grown without Zn. In an early stage of Zn deficiency. concentration of the Cu,Zn superoxide dismutase (SOD) protein in leaf tissues measured by capillary electrophoresis was related positively to the tolerance of genotypes to Zn deficiency. In comparison with Zn sufficiency, exposure to Zn deficiency for 13 days caused an increase in Cu-ZnSOD concentration in tolerant genotypes, but not in sensitive ones. These results indicate that Cu/ZnSOD might be involved in reducing Zn-deficiency-related oxidative damage in genotypes tolerant re, Zn deficiency. (C) 1999 Elsevier Science Ireland Ltd. All rights reserved.

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Documento generato il 22/10/20 alle ore 02:42:31