The synthesis of amylose in amyloplasts is catalyzed by granule-bound starch synthase (GBSS). GBSS gene expression was inhibited via antisense RNA in Agrobacterium rhizogenes-transformed potato plants. Analysis of starch production and starch granule composition in transgenic tubers revealed that reduction of GBSS activity always resulted in a reduction of the production of amylose. Field exper...

Dormant potato tubers (Solanum tuberosum L.) of two cultivars were treated with various concentrations of ethylene gas for various exposure periods. As has been shown by others, ethylene caused a rapid but transient increase in respiration rate, which appeared to be independent of any effects on dormancy. All concentrations tested caused accelerated sprouting, 2 microliters per liter being the ...

explore relationships between species of emergent aquatic vegetation communities and their environmental conditions. The modeling approach was used to evaluate the potential persistence of two desired — and quantitatively important — rhizomatous plant species under various climatological conditions: Sagittaria latifolia, common in freshwater systems, can produce tubers as well as rhizomes; Spar...

post-harvest management of potatoes is a major challenge in iran. approximately 30% of the harvest is lostafter a few months of storage. the chemical methods for long term storage are not adequate to controldeterioration and also produce undesirable side effects. to address this issue, a study on radiationpreservation of potatoes was carried out. agria potato bulbs were irradiated using beta be...

A preliminary study on statistical modelling of a process for depolymerisation of cassava non-starch carbohydrate using halide salt assisted phosphoric and pyruvic acids were accomplished. The effects of three independent variables namely; acid concentration, potassium iodide salt and duration were studied using the central composite rotatable design on hydrolysis of the cassava non-starch carb...

Plant starches regularly require extensive modification to permit subsequent applications. Such processing is usually done by the use of chemical and/or physical treatments. The use of recombinant enzymes produced by large-scale fermentation of GM microorganisms is increasingly used in starch processing and modification, sometimes as an alternative to chemical or physical treatments. However, a...

The regulation of starch synthesis in the starch-storing organs of higher plants-organs such as tubers, the embryos of grain legumes, and the endosperms of cereals, in which starch constitutes 50 to 80% of the dry weight at maturity-is complex and poorly understood. Our ignorance of this process has been highlighted by the recent upsurge of interest in starch synthesis, fueled largely by the po...

Palo (Curcuma leucorrhiza) starch is isolated from palo tuber, which is better known as hidden lilly and distributed in the hilly areas of Orissa, West Bengal, Jharkhand and Chhatishgarh. Its rhizomes are good source of starch. The starch extracted from the rhizomes has good application as herbal medicines, different foods and food ingredients such as palo laddu which is used specially during f...