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Genetic and physiological regulation of bacterial endospore development

100%

Wolska K. I., Grudniak A. M., Kraczkiewicz-Dowjat A.

Polish Journal of Microbiology

2007

tom 56

nr 1

Bacterial endospores are complex structures residing inside endospore-forming, mainly gram-positive bacteria. The process of sporulation is considered a simple example of cell differentiation. Endospores enable the organism to resist environmental stresses. Sporulation can be divided into several stages, from axial DNA filamentation to mother cell lysis. The structure and formation of an endospore is an attractive model for the assembly of complex macromolecular structures during development. The expression of genes involved in spomlation is compartmentalized and different sets of genes are expressed in the prespore and mother cell, this being associated with the subsequent activation of four sporulation-specific o factors. Their synthesis and activity are tightly regulated and the regulatory mechanisms have overlapping roles.

Yeast: a eucaryotic model to study the genetic regulation of purine metabolism

84%

Lecoq K., Daignan-Fornier B.

Cellular and Molecular Biology Letters

1999

tom 04

nr 3

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Genetic regulation of alpha-amylase synthesis in rye [Secale cereale L.] grain

67%

Masojc P., Stojalowski S., Lapinski M., Miazga D.

Journal of Applied Genetics

1996

tom 37

nr 2

Genetic analysis of two rye interline crosses and a set of wheat/rye chromosomal addition lines was performed to reveal the mechanism underlying wide variation range of alpha-amylase activity in sound grain. The long arm of chromosome 6R was found to be responsible for increased enzyme synthesis during late stages of triticale grain maturation. Only nuclear genes seemed to control alpha-amylase activity, as reciprocal crosses between rye lines showed no maternal effects. Low enzyme activity showed complete dominance over high level of its synthesis. Segregation ratios, observed in F₂ and BC₁ crosses, indicated that recessive alleles at two independent duplicative loci underlie intensive alpha-amylase production.

Ograniczanie wyników

1 Cellular and Molecular Biology Letters

1 Journal of Applied Genetics

1 Polish Journal of Microbiology

1 Daignan-Fornier B.

1 Grudniak A. M.

1 Kraczkiewicz-Dowjat A.

1 Lapinski M.

1 Lecoq K.

1 Masojc P.

1 Miazga D.

1 Stojalowski S.

1 Wolska K. I.

1 2007

1 1999

1 1996

Wyniki wyszukiwania

Genetic and physiological regulation of bacterial endospore development

Yeast: a eucaryotic model to study the genetic regulation of purine metabolism

Genetic regulation of alpha-amylase synthesis in rye [Secale cereale L.] grain