Biochemical and physiological aspects of leaf development in cocoa (Theobroma cacao), 2: Development of chloroplast ultrastructure and carotenoids
A quantitative study of the changes in chloroplast ultrastructure and carotenoids was made during cocoa flush leaf development. Plastid length, breadth, number of grane per plastid, index of lamellae per plastid and the number of lamellae per granum all increased with chlorophyll content. The number of chloroplasts per cell remained constant at three through out leaf development. Lutein, neoxanthin, violaxanthin, alpha-carotene and beta-carotene were the only carotenoids found in measureble amounts in cocoa leaves, and they all developed in parallel with chlorophyll. The phase of maximum chloroplast development in cocoa does not occur until after the termination of leaf expansion
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| Main Authors: | , , |
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| Format: | biblioteca |
| Published: |
1975
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| Subjects: | ULTRAESTRUCTURA, THEOBROMA CACAO, CLOROPLASTO, CAROTENOIDES, MICROSCOPIA, BIOQUIMICA, HOJAS, ANATOMIA DE LA PLANTA, |
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| Summary: | A quantitative study of the changes in chloroplast ultrastructure and carotenoids was made during cocoa flush leaf development. Plastid length, breadth, number of grane per plastid, index of lamellae per plastid and the number of lamellae per granum all increased with chlorophyll content. The number of chloroplasts per cell remained constant at three through out leaf development. Lutein, neoxanthin, violaxanthin, alpha-carotene and beta-carotene were the only carotenoids found in measureble amounts in cocoa leaves, and they all developed in parallel with chlorophyll. The phase of maximum chloroplast development in cocoa does not occur until after the termination of leaf expansion |
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