Breslow (1) has formulated a mechanism of thiamine action in which the Z-position of the thiazolium ring of thiamine is postulated to be the reactive part of the molecule. Krampitz et al. (2) have prepared thiamine with an cr-hydroxyethyl group substituted on the Z-position and reported its probable identity as “active acetaldehyde.” Recent results from thii laboratory indicate that the pyropho...

Monoclonal antibodies were raised against differentiated cells, and blastemal cells from regenerating limbs of adult newts (Notophthalmus viridescens) and screened for specific staining by immunocytochemistry. In addition to antibodies that identify muscle, Schwann cells and cartilage, two reagents were specific for subpopulations of blastemal cells. One of these latter antibodies, termed 22/18...

We identified the lactic acid bacteria within rye sourdoughs and starters from four bakeries with different propagation parameters and tracked their dynamics for between 5-28 months after renewal. Evaluation of bacterial communities was performed using plating, denaturing gradient gel electrophoresis, and pyrosequencing of 16S rRNA gene amplicons. Lactobacillus amylovorus and Lactobacillus frum...

Fifteen fungal and three bacterial biological control agents (F-BCA B-BCA, respectively) were isolated from the canola production areas of Western Australia to investigate their potential for controlling sclerotinia stem rot (SSR) caused by Sclerotinia sclerotiorum under in vitro field conditions. The capacity these isolates inhibit mycelial growth sclerotia formation S. was assessed dual cultu...

THE skins of many vertebrates react to variations in the amount of hormones of the endocrine glands, especially of the thyroid and pituitary. Moulting in Triturus viridescens is inhibited after both thyroidectomy and hypophysectomy or both operations simultaneously performed. The cornified layers continue to form and the accumulation of these makes the animal appear grimy (Adams and Richards, 1...