在氮缺乏的小球藻细胞中，氮同化与光合作用的相互作用。

The interaction of nitrogen assimilation with photosynthesis in nitrogen deficient cells of Chlorella.

机构信息

Department of Botany and Microbiology, University College of Swansea, Singleton Park, SA2 8PP, Swansea, U.K..

出版信息

Planta. 1976 Jan;133(1):9-13. doi: 10.1007/BF00385999.

Abstract

Nitrogen-limited chemostat cultures of Chlorella fusca var. vacuolata, when given nitrogen in the inorganic forms of nitrate, nitrite and ammonium divert photo-generated electrons, from CO2 fixation to nitrogen assimilation. Addition of nitrate or nitrite, but not ammonium, stimulates rate of oxygen evolution. All but the most severely nitrogen-deficient culture have increased dark respiration rates after addition of inorganic nitrogen. The nitrite reduction step of nitrogen assimilation is the most light-dependent reaction.

摘要

氮限制的 Chlorella fusca var. vacuolata 恒化培养物，当以硝酸盐、亚硝酸盐和铵盐等无机形式提供氮源时，会将光生成的电子从 CO2 固定转移到氮同化。添加硝酸盐或亚硝酸盐，但不是铵盐，会刺激氧气释放速率。除了氮最缺乏的培养物外，添加无机氮后，所有培养物的暗呼吸速率都增加了。氮同化的亚硝酸盐还原步骤是最依赖光照的反应。