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Título: | Quantitative analysis of cell organization in the external region of the olive fruit |
Autor: | Hammami, Sofiene B. M.; Rapoport, Hava F. CSIC ORCID | Palabras clave: | Mesocarp Olea europaea L. Cell size Cell number Image analysis Exocarp |
Fecha de publicación: | 2012 | Editor: | University of Chicago Press | Citación: | International Journal of Plant Sciences 173(9): 993-1004 (2012) | Resumen: | Definitions of the cells that constitute the exocarp or exterior tissue of fleshy fruits are often vague, sometimes providing contradictory descriptions of the epidermis plus none or varying numbers of underlying cell layers for the same species. This study uses a morphometric approach to investigate how cell dimensions, cell number, and their relation with genetically based fruit size differences can contribute to a characterization of tissue organization in the external fruit region, using the olive drupe as an example.We determined cell area, radial and tangential widths, and cell number in the epidermis and 20 subepidermal cell layers of mature fruits of four olive cultivars that range in fruit size. Variation of these measurements among cell layers and the implied cellular contributions to fruit expansion revealed two different subepidermal regions, but with constant widths and layer numbers for all cultivars: (1) the first four cell layers (1-4), which have similar behavior to the epidermis; and (2) the following five cell layers (5-9), which are more similar to the mesocarp. The results provide new insights about cell patterns in the external region of the olive fruit and suggest that layers 1-4 together with the epidermis may act as a multiseriate exocarp and layers 5-9 may act as an outer mesocarp. © 2012 by The University of Chicago. All rights reserved. | Versión del editor: | http://dx.doi.org/10.1086/667610 | URI: | http://hdl.handle.net/10261/90803 | DOI: | 10.1086/667610 | Identificadores: | doi: 10.1086/667610 issn: 1058-5893 e-issn: 1537-5315 |
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analysis_cell_organization_Hammami.pdf | 1,43 MB | Adobe PDF | Visualizar/Abrir |
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