Starch Formation in Storage Organs V

What Controls the Amount and Structure of Starch in Storage Organs?

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...

Starch and sugar conversion in Dioscorea esculenta tubers and Curcuma longa rhizomes during storage

An investigation was carried out to reveal the changes in the concentration of soluble carbohydrates under tuber dormancy in food yam (Dioscorea esculenta) tubers and in an economically important spice cum medicinal plant turmeric (Curcuma longa) rhizomes under storage. Harvested, fully matured tubers of yam and rhizomes of turmeric were stored in wooden boxes under the conditions of 28 ? 2?C t...

Shear-induced aggregate formation in starch solutions

Shear-thickening behavior and shear-induced pattern formation have been observed in semidilute starch solutions. While the shear-thickening behavior is due to breaking up of highly concentrated gel-like structures dispersed in dilute starch solutions, the pattern-forming behavior is not well understood. The pattern formation, observed when the starch solution is exposed to a high shear field, i...

Evidence of sperm storage in My otis capaccinii ( Chiroptera: V espertilionidae) in western Iran

Starch serves as carbohydrate storage in nematode-induced syncytia.

The plant parasitic nematode Heterodera schachtii induces specific syncytial feeding sites in the roots of Arabidopsis thaliana from where it withdraws all required nutrients. Therefore, syncytia have to be well supplied with assimilates and generate strong sinks in the host plant's transport system. Import mechanisms and consequent accumulation of sucrose in syncytia were described recently. I...