Structural basis of the rind disorder oleocellosis in Washington navel orange (Citrus sinensis L. Osbeck).

ABSTRACT: Oleocellosis, a physiological rind disorder of citrus fruit, is an unattractive surface blemish caused by phytotoxic effects of released rind oils. The development of oleocellosis in Washington navel orange (Citrus sinensis L. Osbeck) was examined by following a time sequence of surface symptoms and microscopic rind changes. The two natural causes of oleocellosis were simulated: mechanical damage to the fruit and transfer of rind oil between fruit. Mechanical fruit injury resulted in rupture of the epidermis above oil glands. Released surface oil appeared to infiltrate the rind via the ruptured epidermis resulting in rapid degeneration of cortical, but not epidermal, cell contents. Oil application to the rind surface produced a more severe blemish than did mechanical damage. The oil appear

SUBMITTER: Knight T 

PROVIDER: S-EPMC4240369 | biostudies-literature | 2002 Dec

REPOSITORIES: biostudies-literature