Regulation of LHCa‐Polypeptide‐Biosynthesis in the Phototrophic Green Alga Chlamydobotrys stellata *
| Autor: | J. Winter, K. Kloppstech, D. Mende, B. Kohnke, W. Wiessner, A. Radunz |
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| Rok vydání: | 1990 |
| Předmět: |
0106 biological sciences
0303 health sciences Chlorophyll a Phototroph Photosystem II Plant Science Biology biology.organism_classification 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Algae chemistry Chlorophyll Botany Autotroph Polyacrylamide gel electrophoresis 030304 developmental biology 010606 plant biology & botany Photosystem |
| Zdroj: | Botanica Acta. 103:162-167 |
| ISSN: | 0932-8629 |
| DOI: | 10.1111/j.1438-8677.1990.tb00143.x |
| Popis: | The light-harvesting chlorophyll-protein system of the phototrophic alga Chlamydobotrys stellata consists of the common photosystem II-related chlorophyll a/b-protein complex LHCII and a special photosystem I-connected chlorophyll protein complex, called LHCa (Brandt et al. 1982, 1983) which is present after cultivation of the algae with acetate as carbon source and in absence of carbon dioxide. LHCII consists of three polypeptides (Mr.103 27, 25.5 and 25), whereas only one polypeptide (Mr.103 24) was obtained after polyacrylamide gel electrophoresis of LHCa. The specific LHCII-precursor-polypeptides (Mr.103 38, 32, 26) were among the translation products of poly(A+)mRNA from autotrophic or photoheterotrophic algae. The LHCa-precursor-polypeptide (Mr 30 000) was found when the alga had been cultivated in the presence of acetate. The data support the assumption that LHCa-biosynthesis is controlled by the actual growth conditions at or close to the transcriptional level. |
| Databáze: | OpenAIRE |
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