Ecology of Microorganisms

Ecology of Microorganisms

1. ECOLOGY is the scientific study of the interaction between organism and their enviroment

   • Oikos = a place to live Logos = to study

2. Ecological Levels 1.Organism 2.Population 3.Community 4.Ecosystem

3. Population- a group of individuals in a particular geographic area that belong to the same species

   • Community - all the organisms that inhibit a particular area.
     • Ecosystem - dynamic interaction between plants, animal, and microorganisms and their environment working together as a functional unit

4. BIOSPHERE

   • * Biggest ecosystem *Consist abiotic(non-living component) and biotic(living component)

5. MICROBIAL ECOLOGY - the study of interaction between microorganism and their environment (Chmcl, Physical, Biological environments)

   • Characteristics Of Microorganisms Ecology
     • 1. The assortment of microorganisms sp. 2. Dynamic population 3. Adaptation and Mutation 4. Association of microorganisms in ecosystem

6. THE INTERACTION AND INFLUENCE OF MICROORGANISM IN THE ECOSYSTEM An ecosystem consists of all well as all the abiotic factors with which they interact.

7. ROLES OF MICROBES *Primary Producers -synthesis of organic matter from CO2 and other inorganic compund -organisms that carry out primary production

   • *Decomposers (often carry out mineralization) *Food source for other organisms *Biogeochemical cycling *Change amounts of materials in soluble and gaseous form

8. Generalities of chemical cycling *There are two general categories of biogeochemical cycles: Global cycle and Local cycles

9. BIOGEOCHEMICAL CYCLE -This type of cycle of atoms between living and non-livings is known as a biogeochemical cycle -involves organisms(bio),(geo) & Chemical

10. Biogeochemical cycle can diveded into 2 basis group : 1. Nutrient cycle form a sediment in atmosphere and hydrosphere(sea) 2. Nutrient cycle form a sediment in the surfaces layer of earth

11. General Model of Nutrient Cycling

    • 1. Defines major reservoirs of elements and processes that transfer elements. 2. Most nutrients accumulate in four reservoirs that are defined by two characteristic: i) If they contain organic or inorganic materials ii) whether or not materials in them are directly or indirectly available to organisms