ISHS Acta Horticulturae 984: VII International Symposium on Mineral Nutrition of Fruit Crops
CELL WALL STRUCTURE OF TRANSLUCENT CELLS OF MANGOSTEEN FRUIT |
| Authors: | Y. Paopun, P. Umrung, P. Thanomchat |
| Keywords: | ultrastructure, middle lamella, Garcinia mangostana, physiological disorder |
| DOI: | 10.17660/ActaHortic.2013.984.52 |
| Abstract:
Mangosteen fruit [Garcinia mangostana, family Clusiaceae (Guttiferae)] is parthenocarpic and its flesh is aril type with mostly only one large seed. The translucent flesh disorder appears as the flesh enveloped the seed becomes translucent of which the texture is firm and crisp. The cause has been speculated to be related to cell wall Calcium (Ca)/boron (B) deficiency which compromised the integrity of the wall. The nature of the cell wall structure is still not understood. This study investigates the abnormality of the cell wall of the translucent cells using the optical and the transmission electron microscopes. The aril composes of parenchyma cells. In translucent tissues, cells were swollen and the middle lamella and cell wall were thicker. In some cells, there appeared separating space between cell wall matrix and the middle lamella, and in others, the middle lamella showed disintegration. Clearly, the cells of the translucent tissues had lost their integrity. The results from this study suggested that weak cell wall is the cause of translucent flesh in mangosteen fruit. | |
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