Sorbitol Transporter Expression in Apple Sink Tissues: Implications for Fruit Sugar Accumulation and Watercore Development
نویسندگان
چکیده
منابع مشابه
Expression Patterns of Genes Involved in Sugar Metabolism and Accumulation during Apple Fruit Development
Both sorbitol and sucrose are imported into apple fruit from leaves. The metabolism of sorbitol and sucrose fuels fruit growth and development, and accumulation of sugars in fruit is central to the edible quality of apple. However, our understanding of the mechanisms controlling sugar metabolism and accumulation in apple remains quite limited. We identified members of various gene families enco...
متن کاملCloning, expression, and characterization of sorbitol transporters from developing sour cherry fruit and leaf sink tissues.
The acyclic polyol sorbitol is a primary photosynthetic product and the principal photosynthetic transport substance in many economically important members of the family Rosaceace (e.g. almond [Prunus dulcis (P. Mill.) D.A. Webber], apple [Malus pumila P. Mill.], cherry [Prunus spp.], peach [Prunus persica L. Batsch], and pear [Pyrus communis]). To understand key steps in long-distance transpor...
متن کاملSorbitol metabolism and sink-source interconversions in developing apple leaves.
In apple (Malus domestica Borkh.) sorbitol is the primary product of photosynthesis, the major translocated form of carbon, and a common fruit constituent and storage compound. Previous work on sorbitol metabolism has revealed a NADPH-dependent aldose 6-phosphate reductase (A6PR) in green tissues, and a NAD-dependent sorbitol dehydrogenase in nongreen tissues. Results here show a decrease in so...
متن کاملTissue-specific expression of SORBITOL DEHYDROGENASE in apple fruit during early development.
Sorbitol, the primary photosynthate and translocated carbohydrate in apple (Malusxdomestica Borkh.), is converted to fructose by sorbitol dehydrogenase (SDH; EC 1.1.1.14) which is active in apple fruit throughout development. In the apple genome, nine SDH genes have been isolated and their sequences characterized, but their individual expression patterns during apple fruit set and development h...
متن کاملThe Malus domestica sugar transporter gene family: identifications based on genome and expression profiling related to the accumulation of fruit sugars
In plants, sugar transporters are involved not only in long-distance transport, but also in sugar accumulations in sink cells. To identify members of sugar transporter gene families and to analyze their function in fruit sugar accumulation, we conducted a phylogenetic analysis of the Malus domestica genome. Expression profiling was performed with shoot tips, mature leaves, and developed fruit o...
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 2005
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.130.2.261