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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