SO4 has been used to investigate the production of extracellular mucilage by log-phase cells. Uptake of isotope occurs most rapidly in the light, when cells are actively dividing. The mucilage comprises about 50 % carbohydrate, 16% protein and 10 % sulphate. The major sugar is xylose; uronic acid, a small amount of galactose, glucose (trace) and 2 reducing substances are also present. Methylati...

BACKGROUND The dilution and rapid elimination of topically applied drugs due to the flushing action of saliva is a major difficulty in the effort to eradicate infections of oral cavity. Utilization a proper delivery system for incorporation of drugs has a major impact on drug delivery and such a system should be formulated for prolonged drug retention in oral cavity. OBJECTIVES The aim of the...

Dimorphandra mollis (Leguminosae), known as faveiro and fava d'anta, is a tree that is widely distributed throughout the Brazilian Cerrado (a savanna-like biome). This species is economically valuable and has been extensively exploited because its fruits contain the flavonoid rutin, which is used to produce medications for human circulatory diseases. Knowledge about its genetic diversity ...

able to retain food of any sort for more than half an hour. This state of things, only slightly relieved by medical treatment, continued up to the time of her confinement. On making an examination, the os was found very slightly dilated, the head presenting, but no trace of the usual bag of liquor amnii. On asking the nurse when the waters had come away, she asserted there had been no discharge...

All our tests with the Navictda sp. were negative. It was apparent, therefore, that this was not the cause of trouble but that Fragilaria striatula was suspect. This is in agreement with the report of Fraser and Lyell (1963) that an eczematous eruption in an Aberdeen fisherman was caused by Fragilaria struia. That this diatom, alone out of so many present in the sea, should have a harmful effec...

Mannans are hemicellulosic polysaccharides that are considered to have both structural and storage functions in the plant cell wall. However, it is not yet known how mannans function in Arabidopsis (Arabidopsis thaliana) seed mucilage. In this study, CELLULOSE SYNTHASE-LIKE A2 (CSLA2; At5g22740) expression was observed in several seed tissues, including the epidermal cells of developing seed co...