Identyfikatory
Warianty tytułu
Effect of selected high-energetic azotetrazole salts on microbial activity in soil
Języki publikacji
Abstrakty
Celem prezentowanych badań było oznaczenie wpływu azotetrazolanu diamonu (AAZ), azotetrazolanu di(guanidyny) (GAZ), azotetrazolanu di(triaminoguanidyny) (TAGAZ) oraz chlorowodorku triaminoguanidyny (TAG⋅HCl) na wzrost bakterii glebowej Bacillus halodurans oraz na aktywność mikrobiologiczną w glebie. W badaniach zastosowano hodowle stacjonarne wyizolowanego z gleby szczepu bakterii Bacillus halodurans oraz wykorzystano system respirometryczny do oznaczeń tempa produkcji CO₂, H₂, i HS w hodowlach glebowych z dodatkiem soli azotetrazolu i TAG. W celu wyznaczenia parametrów biokinetycznych wzrostu mikrobiologicznego Bacillus halodurans oraz tempa produkcji gazów w hodowlach glebowych zastosowano analizę matematyczną w oparciu o model logistyczny. Stwierdzono znaczną aktywność azotetrazolanu di(triaminoguanidyny) oraz chlorowodorku triaminoguanidyny hamującą wzrost Bacillus halodurans. Podobne wyniki otrzymano przy oznaczeniach respirometrycznych, gdzie dla hodowli z wymienionymi związkami uzyskano tempo produkcji CO₂ na poziomie odpowiednio 937 µg ⋅ h⁻¹ i 1011 µg ⋅ h⁻¹, natomiast w hodowlach kontrolnych tempo to oznaczono na poziomie 1563 µg ⋅ h⁻¹. Badania respirometryczne wykazały również, że badane związki mogą charakteryzować się znaczną aktywnością modyfikującą procesy mikrobiologiczne w glebie. Wszystkie zastosowane związki hamowały całkowicie wydzielanie siarkowodoru oraz modyfikowały tempo wydzielania wodoru w hodowlach, znacznie je obniżając w stosunku do układu kontrolnego.
The aim of this study was to determine how the azotetrazole salts affect the growth of soil bacteria Bacillus halodurans and microbial activity in soil. Diammonium azotetrazolate (AAZ) guanidinium azotetrazolate (GAz), triaminoguanidine azotetrazolate (TAGAZ) and triaminoguanidine hydrochloride (TAG⋅HCl) have been investigated. The stationary cultures of strain Bacillus halodurans, which were isolated from a soil, have been applied to estimate biokinetic parameters of the microbial growth in the presence of azotetrazole salts. Additionally, the respirometric system was used to determine the rate of production of CO₂, H₂ and H₂S in cultures of soil with these compounds. In order to determine the biokinetic parameters of microbial growth of Bacillus halodurans and gas production rates in cultures of soil, mathematical analysis based on the logistic model has been applied. Significant inhibitory activity in relation to growth of Bacillus halodurans was found. Analogous results were obtained with respirometric assays, where in the cultures with TAGAZ and TAG⋅HCl, the production rate of CO₂, was achieved at the level of 937 µg ⋅ h⁻¹ and 1011 µg ⋅ h⁻¹, respectively, whereas the rate in control cultures was determined at the level of 1563 µg ⋅ h⁻¹. However, all investigated compounds inhibited completely the production of hydrogen sulphide and modified the rate of hydrogen production in the cultures, significantly reducing them relative to the control system.
Czasopismo
Rocznik
Tom
Strony
307--324
Opis fizyczny
Bibliogr. 29.poz., wykr., tab.
Twórcy
autor
autor
- Wojskowa Akademia Techniczna, Wydział Nowych Technologii i Chemii, 00-908 Warszawa, ul. S. Kaliskiego 2, mszala@o2.pl
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAD-0031-0019