Globidia, at various stages of differentiation were found in histological sections prepared from the digestive tract of an Australian gecko Heteronotia binoei Gray, 1845. the globidia — seemingly in hypertrophic endothelial host cells - were located in the lamina propria of the small intestine, and were enclosed in a parasitophorous vacuole with various stages of differentiating ineronts. When fully matured, globidia contained hundreds of merozoites within their parasitophorous vacuole.
The actívities of glycine oxidase (GO) and serine dehydratase (SD) were revealed in green leaves of wheat and maize. The enzymes were extracted by ammonium sulfáte fractionation. GO localized in chloroplast and cytosolic fraction was most active at pH 8.0. Its activity was 1.5-2.0 times higher in wheat than in maize and it declined with leaf aging. The enzyme converts glycine into glycollate and ammonium ion being flavine dependent and generating H2O2. We propose that it is an L-amino-acid oxidase (EC 1.4.3.2) with a higher specificity to glycine. The activity of SD (EC 4.2.1.13) localized in chloroplasts was maximum at pH 7.0-7.2, it was also higher in wheat than in maize. Pyruvate was determined as a product of enzymatic conversion of L-serine. SD and GO actívities were not revealed in etíolated leaves.