Effect of UV radiation on pigments of the Antarctic macroalga Leptosomia simplex L.

被引：15

作者：

Dohler, G ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Bot, D-60054 Frankfurt, Germany

来源：

PHOTOSYNTHETICA | 1998年 / 35卷 / 03期

关键词：

alpha- and beta-carotenes; chlorophyll; chlorophyllide; lutein; UV-A and UV-B radiation; zeaxanthin;

D O I：

10.1023/A:1006932922895

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Impact of UV-A and UV-B radiation on pattern of pigments of the Antarctic macroalga Leptosomia simplex L. was studied during the Polarstern cruise (ANT XII/2) 1994/95 under controlled laboratory conditions. An 8 h exposure to UV-A of 17.6 W m(-2) led usually to an increase of carotenoid contents, but to a decrease in contents of chlorophyllide (Chlide) a and chlorophyll (Chl) a. UV-B irradiation (300-320 nm) caused a decrease in contents of Chlide a, lutein, and zeaxanthin, but an increase in contents of Chi a and carotenes. Enhancement of carotenoid contents was attributed to a protection of the photosynthetic apparatus. UV effects on the N-15- ammonium uptake were correlated with the changes in pigment contents.

引用

页码：473 / 476

页数：4

共 18 条

[1]

Dohler G, 1997, J PLANT PHYSIOL, V151, P550

[2] ASSIMILATION OF N-15-AMMONIUM BY LITHODESMIUM VARIABILE TAKANO DURING IRRADIATION WITH UV-B (300-320 NM) AND COMPLEMENTAL MONOCHROMATIC LIGHT [J].