soil as a microbiological environment
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Soil As a Microbiological Environment. Soil as a microbiological environment. SOIL ATMOSPHERE SOIL WATER SOIL p H SOIL TEMPERATURE INTERACTION BETWEEN ENVIRONMENTAL FAC T ORS. SOIL ATMOSPHERE. Gas in the soil comes from the outside air and the activity of microbial - PowerPoint PPT PresentationTRANSCRIPT
Soil As a Microbiological Environment
SOIL ATMOSPHERESOIL WATER
SOIL pHSOIL TEMPERATURE
INTERACTION BETWEEN ENVIRONMENTAL
FACTORS
Soil as a microbiological environment
Gas in the soil comes from the outside air and the activity of microbial
>N2, the N fixation by microbes, soil N cycle processes>O2, the result of photosynthesis>CO2, the result of microbial respiration
SOIL ATMOSPHERE
The pores in the soil mineral or organic content of the gas and water
Gas content in the soil determine the type of microbes:> aerobic microbial> anaerobic microbial> facultative microbial
Ground Water
Ground water is essential to the life of the soil biota
Ground water is determine :> soil humidity and> availability of water for soil biota: the solubility of minerals for plant and microbe’s nutrients is high
Soil pH plays an important role in avaibility of soil nutrient to soil microorganism
Soil pH acts on the action of the enzyme that produced of the soil microbial
On acid soils, nutrients are less available to soil biota
On neutral soils, sufficient available nutrients for the soil biota
SOIL pH
Soil temperature influence :> the reaction physiology of biota cell> physico-chemical characteristics of the environment example: soil volume, pressure, oxidation-reduction potential, diffusion, viscosity, structure, groundwater, surface pressure
SOIL TEMPERATURE
High temperature, protein denaturation and microbial cell wall denaturation
Low temperatures, microbial activity stopped
SOIL TEMPERATURE
Microbiology of soilInteraction Between Environment Factor
Ekpo, M. A., et al. 2008. RATE OF BIODEGRADATION OF CRUDE OIL BY MICROORGANISMS ISOLATED FROM OIL SLUDGE ENVIRONMENT. African Journal of Biotechnology , 7 (24): 4495-4499.
Kumar, N., et al. 2010. ISOLATION AND SCREENING OF SOIL ACTINOMYCETES AS SOURCE OF ANTIBIOTICS ACTIVE AGAINST BACTERIA. International Journal of Microbiology Research, 2(2): 12 -16.
References
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