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Titolo:
ACTIVE OXYGEN SCAVENGERS DURING COLD-ACCLIMATION OF SCOTS PINE-SEEDLINGS IN RELATION TO FREEZING TOLERANCE
Autore:
TAO DL; OQUIST G; WINGSLE G;
Indirizzi:
SWEDISH AGR UNIV,FAC FORESTRY,DEPT GENET & PLANT PHYSIOL S-90187 UMEASWEDEN SWEDISH AGR UNIV,FAC FORESTRY,DEPT GENET & PLANT PHYSIOL S-90187 UMEASWEDEN ACAD SINICA,INST APPL ECOL SHENYANG 110015 PEOPLES R CHINA UMEA UNIV,DEPT PLANT PHYSIOL S-90187 UMEA SWEDEN
Titolo Testata:
Cryobiology (Print)
fascicolo: 1, volume: 37, anno: 1998,
pagine: 38 - 45
SICI:
0011-2240(1998)37:1<38:AOSDCO>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
PICEA-RUBENS SARG; SUPEROXIDE-DISMUTASE; OXIDATIVE STRESS; GLUTATHIONE-REDUCTASE; PLASMA-MEMBRANE; ASCORBIC-ACID; POPLAR TWIGS; SYLVESTRIS L; ABIES L; NEEDLES;
Keywords:
ACTIVE OXYGEN; FREEZING TOLERANCE; LOW TEMPERATURE; PINUS; SCAVENGING SYSTEMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
D.L. Tao et al., "ACTIVE OXYGEN SCAVENGERS DURING COLD-ACCLIMATION OF SCOTS PINE-SEEDLINGS IN RELATION TO FREEZING TOLERANCE", Cryobiology (Print), 37(1), 1998, pp. 38-45

Abstract

Freezing injury of plants may be caused by the deleterious reactions of active oxygen species, and free-radical scavenging systems may be important in the alleviation of freezing stress. To test the feasibility of this hypothesis, enzymes and metabolites that cooperatively scavenge O-2(-) and H2O2 were analyzed in Scots pine (Pinus sylvestris L.) seedlings during a stepwise cold acclimation procedure. Elevated levels of enzymatic scavengers such as ascorbate peroxidase, glutathione reductase, monodehydroascorbate reductase, and dehy droascorbate reductase were found, along with increased freezing tolerance during cold acclimation, supporting the hypothesis. Induction of the scavenging systems during acclimation is discussed in relation to freezing tolerance. (C) 1998 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 19:33:06