Malhothra, K and Oelze-Karow, H and Mohr, H (1982) Action of light on accumulation of carotenoids and chlorophylls in the milo shoot (Sorghum vulgare Pers.). Action of light in Sorghum, 154 (4). pp. 361-371.
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Abstract
We have performed a comprehensive study on the mechanism of regulation of carotenogenesis by light in the shoot of Sorghum vulgare. Our work shows that carotenoid accumulation is simultaneously controlled by phytochrome (Pfr) and by the availability of chlorophyll. Throughout plastidogenesis light dependent chlorophyll and carotenoid accumulation are interdependent processes: Accumulation of chlorophyll in natural light requires the presence of carotenoids; likewise, accumulation of considerable amount of carotenoids depends on the availability of chlorophyll. However, in both cases the efficiency of the biosynthetic pathway, the potential biosynthetic rates (ldquocapacitiesrdquo) are determined by phytochrome. A ldquopush and pullrdquo model of carotenogenesis advanced previously (Frosch and Mohr 1980, Planta 148, 279) to explain carotenogenesis in the mustard (Sinapis alba) seedling also applies to the monocotyledonous milo (Sorghum vulgare) seedling. Therefore, we suggest that the model applies to carotenogenesis in higher plants in general.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Biological Institute, Federal republic of Germany |
| Subjects: | Atmosperic Science > Climatology Crop Improvement > Biotechnology |
| Divisions: | Sorghum |
| Depositing User: | Library ICRISAT-InfoSAT |
| Date Deposited: | 19 Mar 2012 14:51 |
| Last Modified: | 19 Mar 2012 14:51 |
| Official URL: | http://dx.doi.org/10.1007/BF00393916 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3955 |
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