Wound-Induced Metabolism in Potato (Solanum tuberosum) Tubers
نویسندگان
چکیده
منابع مشابه
Starch metabolism in tubers of transgenic potato (Solanum tuberosum) with increased ADPglucose pyrophosphorylase.
The aim of this work was to use tubers from transgenic lines of potato (Solanum tuberosum) containing increased amounts of ADPglucose pyrophosphorylase to study the role of this enzyme in the control of starch synthesis. A 4-5-fold increase in activity of the enzyme, achieved by transformation with the Escherichia coli ADPglucose pyrophosphorylase gene glgC-16, had no detectable effect on the s...
متن کاملLipid and oxylipin profiles during aging and sprout development in potato tubers (Solanum tuberosum L.).
Potato tubers (Solanum tuberosum L. cv Bintje) were stored at 20 degrees C for 210 days without desprouting to study the lipoxygenase pathway during aging. After 15 days of storage, potato tubers sprouted, while after 45-60 days, apical dominance was lost and multiple sprouts developed. Analysis of the fatty acid hydroperoxides (HPOs) revealed that 9-S-hydroperoxide of linoleic acid (9-HPOD) wa...
متن کاملSucrose Metabolism in Tubers of Potato (Solanum tuberosum L.): Effects of Sink Removal and Sucrose Flux on Sucrose-Degrading Enzymes.
Excision of developing potato (Solanum tuberosum L.) tubers from the mother plant, followed by storage at 10 degrees C, resulted in a rapid, substantial decrease in sucrose synthase activity and considerable increases in hexose content and acid invertase activity. A comparison of the response of three genotypes, known to accumulate different quantities of hexoses in storage, showed that both su...
متن کاملThe ascorbate system and lipid peroxidation in stored potato (Solanum tuberosum L.) tubers
The changes in the components of the ascorbateglutathione system during the storage of potato {Solanum tuberosum L. cv. Spunta) tubers for 40 weeks at both 3 C and 9 C were studied in relation to lipid peroxidation. The level of malondialdehyde was found to be higher at 3 C than at 9 C throughout storage. Thus, lipid peroxidation, which is the main cause of membrane deterioration, was accelerat...
متن کاملDecreased sucrose content triggers starch breakdown and respiration in stored potato tubers (Solanum tuberosum).
To change the hexose-to-sucrose ratio within phloem cells, yeast-derived cytosolic invertase was expressed in transgenic potato (Solanum tuberosum cv. Desirée) plants under control of the rolC promoter. Vascular tissue specific expression of the transgene was verified by histochemical detection of invertase activity in tuber cross-sections. Vegetative growth and tuber yield of transgenic plants...
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ژورنال
عنوان ژورنال: Plant Signaling & Behavior
سال: 2006
ISSN: 1559-2324
DOI: 10.4161/psb.1.2.2433