𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Respiration of blue-green algae in the light

✍ Scribed by Siegfried Scherer; Peter Böger

Publisher
Springer
Year
1982
Tongue
English
Weight
458 KB
Volume
132
Category
Article
ISSN
0302-8933

No coin nor oath required. For personal study only.

✦ Synopsis

The COs evolution in the light of Anabaena as well as several other blue-green algae is below 10 % of the dark control. Addition of DCMU restores CO2 evolution in the light almost to the dark level. Furthermore, by adding unlabeled NaHCO3, a 14CO2 release is observed with prelabeled algal cells attaining 15 to 100% of dark control. Analysis by double-reciprocal plots exhibits a competitive relationship between added and endogenously released carbon dioxide. We conclude that COs evolved by respiration is immediately refixed in the light without being liberated.

The degree of 14CO 2 release induced by unlabeled bicarbonate in the light allows to determine true photoinhibition of respiration. Anabaena variabilis Kfitz. exhibits almost no inhibition while in eight other species respiration is lightinhibited between 50 and 85 % of the dark control.

📜 SIMILAR VOLUMES

Growth requirements of blue-green algae
Growth requirements of blue-green algae under blue light conditions
✍ Warren M. Pulich; Chase Baalen 📂 Article 📅 1974 🏛 Springer 🌐 English ⚖ 564 KB

1. Growth requirements of blue-green algae containing only the c-phycocyanin -[-chlorophyll a pigment system have been studied under blue light (380--540 nm) which approximates light conditions existing in subsurface waters in nature. 2. While a few species were capable of very slow photosynthetic

Ammonia assimilation in blue-green algae
Ammonia assimilation in blue-green algae
✍ Neilson, A. H. ;Doudoroff, M. 📂 Article 📅 1973 🏛 Springer-Verlag ⚖ 451 KB

The occurrence of alanine dehydrogenase (AlaDH), glutamate dehydrogenase (GDH), and 2-ketoglutarate:glutamine amidotransferase (GGAT), has been surveyed in a number of blue-green algae. Among nine unicellular strains grown with nitrate, and belonging to five of the major typological groups, AlaDH wa