Bacterial phytase: potential application, in vivo function and regulation of its synthesis

By U. Konietzny, R. Greiner. 2004

157 citations recorded by the source corpus.

The stepwise release of phosphate from phytate, the major storage form of phosphate in plant seeds and pollen, is initiated by a class of enzymes that have been collectively called phytases. The classification is solely due to the in vitro capability of these enzymes to accept phytate as a substrate. Phytases have been studied intensively in recent years because of the great interest in such enzymes for reducing phytate content in animal feed and food for human consumption. They have a wide distribution in plants, microorganisms, and in some animal tissues. Due to several biological characteristics, such as substrate specificity, resistance to proteolysis and catalytic efficiency, bacterial phytases have considerable potential in commercial applications. In bacteria, phytase is an inducible enzyme and its expression is subjected to a complex regulation, but phytase formation is not controlled uniformly among different bacteria. It was suggested that phytase is not required for balanced growth of bacterial cells, but may be synthesised in response to a nutrient or energy limitation.

Subfields: Hematology, Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/8a66f417fd66a522433074db045ddff345f1fa5a

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Citations in the corpus

Phytases and Phytase-Labile Organic Phosphorus in Manures and Soils (2013, background): “…were well reviewed by several authors, and we recommend for further reading Rao et al. (2009), Jorquera et al. (2008a), Fu et al. (2008), Asan (2007), Lei et al. (2007), Haefner et al. (2005), Konietzny and Greiner (2004), Pandey et al. (2001), Wyss et al. (1999a; 1999b), and Dvoráková (1998).”
Postharvest Handling and Storage of Fresh Cassava Root and Products: a Review (2015, background): “…against different terminal diseases like cancer, the negative effect of phytate in the body includes formation of insoluble phytate- mineral complexes leading to a decrease in mineral availability and deficiency of iron, zinc, calcium and magnesium in the body (Konietzny and Greiner 2004).”
Isolation of culturable phosphobacteria with both phytate-mineralization and phosphate-solubilization activity from the rhizosphere of plants grown in a volcanic soil (2008, background): “…is one of the most studied, including species such as Pseudomonas putida, Pseudomonas aeruginosa, Pseudomonas corrugata, Pseudomonas stutzeri, Pseudomonas rhizosphareae, Pseudomonas lutea, and Pseudomonas fluorescens (Igual et al. 2001; Konietzny and Greiner 2004; Peix et al. 2003, 2004).”
Microbial phytase activity and their role in organic P mineralization (2015, background): “Nevertheless, phytases from bacterial origin are a real alternative to fungal enzymes because of their specificity to substrate, resistance to proteolysis and efficiency of catalytic activity (Konietzny & Greiner 2004).”