Carotenoid Biosynthesis and Plastid Development in Plants: The Role of Light
| Autor: | Claudia Stange, Rocio Quian-Ulloa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Chloroplasts Light Plant Development Taproot Review Plant Roots 01 natural sciences Catalysis lcsh:Chemistry Inorganic Chemistry 03 medical and health sciences Greening Botany Chromoplast Plastids Photosynthesis Physical and Theoretical Chemistry Plastid lcsh:QH301-705.5 Molecular Biology Carotenoid Plant Physiological Phenomena Spectroscopy chemistry.chemical_classification light signaling organic chemicals Organic Chemistry carotenoids food and beverages photoreceptors Ripening General Medicine biological factors Biosynthetic Pathways Computer Science Applications Plant Leaves Chloroplast 030104 developmental biology lcsh:Biology (General) lcsh:QD1-999 chemistry Fruit Photomorphogenesis chromoplasts 010606 plant biology & botany |
| Zdroj: | International Journal of Molecular Sciences International Journal of Molecular Sciences, Vol 22, Iss 1184, p 1184 (2021) |
| ISSN: | 1422-0067 |
| DOI: | 10.3390/ijms22031184 |
| Popis: | Light is an important cue that stimulates both plastid development and biosynthesis of carotenoids in plants. During photomorphogenesis or de-etiolation, photoreceptors are activated and molecular factors for carotenoid and chlorophyll biosynthesis are induced thereof. In fruits, light is absorbed by chloroplasts in the early stages of ripening, which allows a gradual synthesis of carotenoids in the peel and pulp with the onset of chromoplasts’ development. In roots, only a fraction of light reaches this tissue, which is not required for carotenoid synthesis, but it is essential for root development. When exposed to light, roots start greening due to chloroplast development. However, the colored taproot of carrot grown underground presents a high carotenoid accumulation together with chromoplast development, similar to citrus fruits during ripening. Interestingly, total carotenoid levels decrease in carrots roots when illuminated and develop chloroplasts, similar to normal roots exposed to light. The recent findings of the effect of light quality upon the induction of molecular factors involved in carotenoid synthesis in leaves, fruit, and roots are discussed, aiming to propose consensus mechanisms in order to contribute to the understanding of carotenoid synthesis regulation by light in plants. |
| Databáze: | OpenAIRE |
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