The production of fucoxanthin from microalgae is rapidly gaining popularity due to its exceptional productivity, lack contamination, and straightforward extraction process. However, the optimal conditions for increasing biomass concentration and/or content through manipulation light carbon sources are context specific. This study explored metabolism in Nitzschia laevis under heterotrophic mixot...

Particulate preparations from mammalian heart which are able to transfer electrons in successive steps from reduced diphosphopyridine nucleotide (DPNH) to molecular oxygen or to intermediate components of the respiratory chain have been reported from time to time (1, 2). Likewise, lipid-free, soluble DPNH dehydrogenases have been obtained from sarcosomal particles. Among them, the diaphorase of...

The potential effects of prenatal administration of dexamethasone (DEX) and postnatal treatment with 2-oxoglutaric acid (2-Ox) on postnatal development of connective tissue of farm animals were not examined experimentally. The aim of this study was to establish changes in morphological parameters of bone and articular and growth plate cartilages damaged by the prenatal action of DEX in piglets ...

L-2-Keto-3-deoxyarabonate (L-KDA) dehydratase is a novel member of the dihydrodipicolinate synthase (DHDPS)/N-acetylneuraminate lyase (NAL) protein family and catalyzes the hydration of L-KDA to alpha-ketoglutaric semialdehyde. L-KDA dehydratase was overexpressed, purified and crystallized at 291 K using the hanging-drop vapour-diffusion method. The crystal diffracts to 2.0 A resolution using s...

The rale which the transamination reaction plays in the metabolism of amino acids is not known exactly. The reaction was at first considered to be general and to involve most amino acids (1). However, results obtained in various laboratories suggested that transamination took place only with glutamic acid, aspartic acid, and alanine, and in a few cases with other amino acids (2-4). The developm...

Cd-tolerant bacterial strains of fluorescent pseudomonads, mostly belonging to Pseudomonas monteillii, were isolated from termite mound soil (Macrotermes subhyalinus, a litter-forager and fungus-growing termite), in a Sudanese shrubby savanna, Burkina Faso. Such large mounds appeared as sites of great bacterial diversity and could be considered as hot spots of metal-tolerant fluorescent pseudom...