NITROGEN-FIXING ANABAENA - PHYSIOLOGICAL ADAPTATIONS INSTRUMENTAL IN MAINTAINING SURFACE BLOOMS

被引：38

作者：

PAERL, HW ^{[1
]}

KELLAR, PE ^{[1
]}

机构：

[1] CANADA CTR INLAND WATERS,DIV PROC RES,BURLINGTON L7R 4A6,ONTARIO,CANADA

来源：

SCIENCE | 1979年 / 204卷 / 4393期

关键词：

D O I：

10.1126/science.204.4393.620

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：

Both laboratory and in situ studies indicate that the nitrogen-fixing blue-green nuisance algae Anabaena spp. have developed adaptive means of dominating surface lake waters. During the dramatic diurnal shifts in surface light intensity and oxygen saturation accompanying blooms, Anabaena can overcome oxygen toxicity by sequential optimization of carbon dioxide and nitrogen fixation and by pigment alteration. These mechanisms allow optimal utilization of the radiant energy while minimizing competition for photoreductant between two main energy-demanding processes. Copyright © 1979 AAAS.

引用

页码：620 / 622

页数：3

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