| Autor: |
István Gyurján, Anna H. Nagy, Julia N. Rakován |
| Rok vydání: |
1978 |
| Předmět: |
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| Zdroj: |
Biochemie und Physiologie der Pflanzen. 173:429-439 |
| ISSN: |
0015-3796 |
| Popis: |
Summary Ribosomes, ribosomal RNAs and soluble proteins of leaves were studied in wild-type and two chloroplast mutants of maize. The mutants are inherited in Mendelian manner and are characterized by accumulating ζ -carotene ( ζ -mutant) and lycopin ( ly -mutant) instead of β -carotene. Sedimentation pattern of the ribosomes shows a reduced amount of 70S ribosomes in the dark-grown mutants. There are even fewer 70S ribosomes present in the mutant leaves grown in the light. In parallel a low amount of chloroplast rRNA is present in the mutant leaves. Gel electrophoresis of leaf extracts shows a low content of Fraction I protein in the mutant. It is suggested that several abnormalities found in the mutants are due to the low level of 70S ribosomes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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