UV-B radiation induces biphasic burst of hydrogen peroxide in mesophyll Chlorella vulgaris

被引:2
作者
Edreva, A. M. [1 ]
Pouneva, I. D. [1 ]
Gesheva, E. Zh. [1 ]
机构
[1] Bulgarian Acad Sci, Inst Plant Physiol & Genet, BU-1113 Sofia, Bulgaria
关键词
Chlorella vulgaris; UV-B; reactive oxygen species; PROGRAMMED CELL-DEATH; DAMAGE; CHLOROPHYCEAE; CHLOROPLASTS; RESISTANCE; RESPONSES; PLANTS; OZONE; LIGHT;
D O I
10.1134/S1021443715010069
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The fluctuations of hydrogen peroxide and total hydroperoxides were followed up at different time points in UV-B-irradiated cell suspension cultures of the green microalga Chlorella vulgaris. A biphasic burst of hydrogen peroxide was recorded, while cell viability was strongly reduced. This pattern is similar to the two wave oxidative burst in plants expressing hypersensitive response to pathogens and PCD and implies the occurrence of a PCD-like response in UV-B-exposed unicellular green algae.
引用
收藏
页码:219 / 223
页数:5
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