cyanoginosin-lr has been researched along with sodium-nitrate* in 2 studies
2 other study(ies) available for cyanoginosin-lr and sodium-nitrate
| Article | Year |
|---|---|
Effects of light, microorganisms, farming chemicals and water content on the degradation of microcystin-LR in agricultural soils.
An experiment was conducted to investigate the effect of farming activities on microcystin-LR (MC-LR) degradation in soils. Three farming activities were assessed: 1) fertilization via addition of different nitrogen sources and organic matter; 2) pesticide application by addition of different commercial pesticides; and 3) irrigation by addition of different amount of water. The contribution of the two major degradation processes of MC-LR in soils, photodegradation and biodegradation, were also evaluated. MC-LR was added into the soil samples to create a concentration of 500 μg kg Topics: Agriculture; Ammonium Chloride; Biodegradation, Environmental; Chemical Phenomena; Fertilizers; Humic Substances; Light; Marine Toxins; Microcystins; Nitrates; Nitrogen; Photolysis; Soil; Soil Microbiology; Water; Water Microbiology | 2018 |
Divergent responses of functional gene expression to various nutrient conditions during microcystin-LR biodegradation by Novosphingobium sp. THN1 strain.
To better understand the mechanisms for microcystin-LR (MCLR) biodegradation, the linkage between MCLR-biodegradation kinetics and functional gene expression dynamics was originally investigated with Novosphingobium sp. THN1 as inoculum under various nutrient conditions. Along biodegradation, mlrA gene expression, coupled with mlrD, presented similar trend but was regulated differentially among different conditions. Good positive correlation was observed between MCLR degraded and induction ratios of functional genes until 42h at respective condition. Compared to those under nutrient-free condition, the stimulated or decelerated biodegradation with dipotassium phosphate (DP) or ammonium chloride (AC) (both at 100mg L(-1)) was related to higher or lower up-regulation in mlr gene expression, suggesting that divergent mlr gene expression was one of the reasons for different effects of DP or AC on degradation. However, stimulated degradation with sodium nitrate (100mg L(-1)) might involve other mechanisms where mlr expression was not the decisive prerequisite to govern MCLR-biodegradation. Topics: Ammonium Chloride; Biodegradation, Environmental; Gene Expression Regulation, Bacterial; Genes, Bacterial; Kinetics; Marine Toxins; Microcystins; Nitrates; Phosphates; Potassium Compounds; Sphingomonadaceae | 2014 |