Alterations in soil microbial activity and N-transformation processes due to sulfadiazine loads in pig-manure

2008 ◽  
Vol 153 (2) ◽  
pp. 315-322 ◽  
Author(s):  
Anja Kotzerke ◽  
Shilpi Sharma ◽  
Kristina Schauss ◽  
Holger Heuer ◽  
Sören Thiele-Bruhn ◽  
...  
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Pig Manure ◽  
Soil Microbial ◽  
N Transformation ◽  
Transformation Processes

scholarly journals Effect of Plant Growth Regulators on Protease Activity in Forest Floor of Norway Spruce Stand

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 665
Author(s):  
Ladislav Holik ◽  
Jiří Volánek ◽  
Valerie Vranová
Keyword(s):  
Organic Matter ◽  
Proteolytic Activity ◽  
Protease Activity ◽  
Forest Floor ◽  
Soil Microbial Activity ◽  
Inhibitory Effects ◽  
Chlorocholine Chloride ◽  
Soil Microbial ◽  
Native Soil ◽  
Transformation Processes

Soil proteases are involved in organic matter transformation processes and, thus, influence ecosystem nutrient turnovers. Phytohormones, similarly to proteases, are synthesized and secreted into soil by fungi and microorganisms, and regulate plant rhizosphere activity. The aim of this study was to determine the effect of auxins, cytokinins, ethephon, and chlorocholine chloride on spruce forest floor protease activity. It was concluded that the presence of auxins stimulated native proteolytic activity, specifically synthetic auxin 2-naphthoxyacetic acid (16% increase at added quantity of 5 μg) and naturally occurring indole-3-acetic acid (18%, 5 μg). On the contrary, cytokinins, ethephon and chlorocholine chloride inhibited native soil protease activity, where ethephon (36% decrease at 50 μg) and chlorocholine chloride (34%, 100 μg) showed the highest inhibitory effects. It was concluded that negative phytohormonal effects on native proteolytic activity may slow down organic matter decomposition rates and hence complicate plant nutrition. The study enhances the understanding of rhizosphere exudate effects on soil microbial activity and soil nitrogen cycle.

scholarly journals Influence of xenobiotic contaminants on landfill soil microbial activity and diversity

2012 ◽  
Vol 95 ◽  
pp. S285-S290 ◽  
Author(s):  
M.I. Pérez-Leblic ◽  
A. Turmero ◽  
M. Hernández ◽  
A.J. Hernández ◽  
J. Pastor ◽  
...  
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Soil Microbial

Radiorespirometry measurement of the soil microbial activity of trial fields treated with organic fertilizers

1994 ◽  
Vol 46 (1-2) ◽  
pp. 31-36
Author(s):  
Jean Rouchaud ◽  
Fabrice Gustin ◽  
Dany Callens ◽  
Robert Bulcke ◽  
Joel Gillet ◽  
...  
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Organic Fertilizers ◽  
Soil Microbial

Effect of deforestation on soil microbial activity

2002 ◽  
Vol 394 (1-2) ◽  
pp. 171-178 ◽  
Author(s):  
E.Elizabeth Sigstad ◽  
Maricel A Bejas ◽  
M Julia Amoroso ◽  
Celina I Garcı́a
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Soil Microbial

scholarly journals Emission of CO2 and soil microbial activity in sugarcane management systems

2015 ◽  
Vol 10 (9) ◽  
pp. 975-982 ◽  
Author(s):  
Luiza Moraes Tavares Rose ◽  
Viana Vieira Farhate Camila ◽  
Menezes de Souza Zigomar ◽  
La Scala Junior Newton ◽  
Luiz Rodrigues Torres Jose ◽  
...  
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Management Systems ◽  
Soil Microbial
Sign in / Sign up

Export Citation Format

Share Document