DIFFERENTIAL EXPRESSION OF CATALASE GENES IN NICOTIANA-PLUMBAGINIFOLIA (L)

被引：158

作者：

WILLEKENS, H

LANGEBARTELS, C

TIRE, C

VANMONTAGU, M

INZE, D

VANCAMP, W

机构：

[1] STATE UNIV GHENT, GENET LAB, B-9000 GHENT, BELGIUM

[2] STATE UNIV GHENT, INRA, LAB ASSOCIE, B-9000 GHENT, BELGIUM

[3] GSF FORSCHUNGSZENTRUM UNWELT & GESUNDHEIT, INST BIOCHEM PFLANZENPATHOL, D-85758 OBERSCHLEISSHEIM, GERMANY

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1994年 / 91卷 / 22期

关键词：

CIRCADIAN RHYTHM; GLYOXYSOMES; OXIDATIVE STRESS; PEROXISOMES; PHOTORESPIRATION;

D O I：

10.1073/pnas.91.22.10450

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have analyzed the expression of three catalase (Cat; EC 1.11.1.6) genes from Nicotiana plumbaginifolia by means of RNA blot and in situ hybridizations. Our data demonstrate that the expression of each catalase is associated with a particular H2O2-producing process. Cat1 appears to be specifically involved in the scavenging of photorespiratory H2O2 and is under control of a circadian rhythm, Cat2 is uniformly expressed in different organs with a cellular preference for vascular tissues, and the expression profile of Cat3 points to a role in glyoxysomal processes. Differential expression of these catalases is also manifested in response to temperature changes. DNA sequence comparison with other dicotyledonous catalases led to the identification of at least three distinct classes, which indicates that the functional organization of catalases is generally conserved in dicotyledonous plants.

引用

页码：10450 / 10454

页数：5

共 30 条

[1] CATALASE AND SUPEROXIDE-DISMUTASE GENE-EXPRESSION AND DISTRIBUTION DURING STEM DEVELOPMENT IN MAIZE [J].