Urea Penetration of Isolated Tomato Fruit Cuticles
نویسندگان
چکیده
منابع مشابه
Penetration of iron and some organic substances through isolated cuticular membranes.
Cuticular membranes were isolated enzymically from tomato fruits and from the dorsal and ventral surfaces of the leaves of Euonymus japonicus. Penetration of Fe from FeSO(4) and FeEDDHA (ferric ethylenediamine di(o-hydroxyphenylacetate) in the absence and presence of urea through the isolated cuticular membranes was studied. Fe from FeSO(4) penetrated more rapidly through the cuticles than Fe f...
متن کاملBiomechanics of isolated tomato (Solanum lycopersicum L.) fruit cuticles: the role of the cutin matrix and polysaccharides.
The mechanical characteristics of the cuticular membrane (CM), a complex composite biopolymer basically composed of a cutin matrix, waxes, and hydrolysable polysaccharides, have been described previously. The biomechanical behaviour and quantitative contribution of cutin and polysaccharides have been investigated here using as experimental material mature green and red ripe tomato fruits. Treat...
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The cuticle, a hydrophobic protective layer on the aerial parts of terrestrial plants, functions as a versatile defensive barrier to various biotic and abiotic stresses and also regulates water flow from the external environment. A biopolyester (cutin) and long-chain fatty acids (waxes) form the principal structural framework of the cuticle; the functional integrity of the cuticular layer depen...
متن کاملIonic Permeabilities of Different Isolated Fruit Cuticles Calculated by Conductivity and Membrane Potential Measurements
A. Muñoz and A. Heredia Departamento de Bioquimica y Biologfa Molecular, Facultad de Ciencias, Universidad de Malaga, E-29071 Malaga, Spain Z. Naturforsch. 49c, 615-618 (1994); received May 9/June 8, 1994 Fruit Cuticles, Membrane Potential, Membrane Conductivity, Ionic Permeabilities Membrane potential and electrical resistance for two isolated fruit cuticular membranes (tomato and pepper cutic...
متن کاملOxygen consumption and lipoxygenase activity in isolated tomato fruit chromoplasts
This Study using purified tomato fruit chromoplasts has shown significant rates of oxygen consumption even in the absence of external precursors. Oxygen consumption rates increased up to 7-fold when chromoplast samples were incubated for 24 h at room temperature. This increase in oxygen consumption is most likely due to the activation of lipoxygenase in the chromoplasts.
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 1994
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.119.4.761