EFFECTS OF SOLAR AND ULTRAVIOLET-RADIATION ON MOTILITY, PHOTOMOVEMENT AND PIGMENTATION IN FILAMENTOUS, GLIDING CYANOBACTERIA

被引：0

作者：

DONKOR, V ^{[1
]}

HADER, DP ^{[1
]}

机构：

[1] UNIV ERLANGEN NURNBERG,INST BOT & PHARMAZEUT BIOL,STAUDTSTR 5,W-8520 ERLANGEN,GERMANY

来源：

FEMS MICROBIOLOGY ECOLOGY | 1991年 / 86卷 / 02期

关键词：

ABSORPTION SPECTRA; ANABAENA-VARIABILIS; CYANOBACTERIA; FLUORESCENCE SPECTRA; MOTILITY; PHORMIDIUM-UNCINATUM; SOLAR RADIATION; ULTRAVIOLET IRRADIATION; VELOCITY;

D O I：

暂无

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The effects of solar irradiation and artificial UV irradiation on several cyanobacteria (Anabaena variabilis and two strains of Phormidium uncinatum) have been studied. Both types of radiation affect the percentage of motile filaments and impair the linear velocity of the organisms. Long term exposure to UV radiation bleaches the photosynthetic pigments as determined by absorption difference spectra. Fluorescence excitation and emission spectra indicate that under ultraviolet radiation the energy transfer from the accessory pigments to chlorophyll is affected. Furthermore the structural integrity of the phycobilisomes seems to be impaired by continuous radiation and the photoreceptor pigments seem to be destroyed.

引用

页码：159 / 168

页数：10

共 41 条

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