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To survive, of course!
A variety of yeasts and bacteria present in soil secrete antibiotics -- they kill off susceptible species and thereby decrease competition for space and resources.
If bacteria want to survive in those areas, they need to be resistant to those antibiotics (and the bacteria that secrete them can't be susceptible to them or it would be suicide!)
Because a lot of antibiotics are given to farm animals, those antibiotics make their way into the soil from animal feces. This may promote selection of antibiotic-resistant organisms in the fecally-contaminated soil.
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What is the role of microorganisms of carbon cycle in soil?
it has'nt got one
How biotic and abiotic factors affect crop production?
as some microorganisms like bacteria also increase the soil fertility
What is 'nitrogen drawdown'?
The use by beneficial soil microorganisms for their own benefit of nitrogen from large particle soil amendments is 'nitrogen drawdown'. Soil amendments are below ground conditioners that are either organic or mineral in their makeup. A popular form are wood chips.Unfortunately, wood chips are so large that they may open up and thereby dry the very soil for which they're supposed to improve movement of air and moisture. They also attract beneficial decomposers. The problem lies in the strong attraction that the microorganisms feel towards the nitrogen in the chips.Breakdown of the chips is supposed to release nitrogen and other nutrients into the soil. Unfortunately, the microorganisms may feed so much on the nitrogen that the soil becomes nitrogen deficient. Plants indicate the nitrogen deficient nature of such soil by turning yellow. The solution is nitrogen fertilizer treatments until the wood chips are broken down.
How are microorganisms helpful to bacteria?
it breaks down polysaccharides such us celullose to simply sugars that are can be easily absorbed by the animal organisms.This is the reason because goats eats papers that are rich in cellulose
What are bio fertilizers?
Bio-fertilizers are substances which contain living microorganisms. When bio-fertilizers are applied to seeds or soil, they promote the growth of the plant by increasing plant nutrients.
What is soil aggregate?
soil aggregate is compressing soil together by microorganisms
How are genes transfered from plants into the soil?
Plant genes can't be transferred into the soil .Just the seeds that contain DNA or RNA can be transferred into soil .
How does bacteria affect soil?
Soil bacteria are the natural soil microorganisms that break down soil components into plant food.
What changes nitrogen gas to nitrogen in the soil?
Microorganisms living in the soil convert it through chemosynthesis.
Microorganisms affect the quality of soil by?
They decompose dead plants and animals and nutrients to plants and the soil
Why are microorganisms present in the upper layers of the soil?
They are present everywhere on earth. The top layer of soil is no exception.
How can soil lose its value?
Soil can lose its value in several ways. Two are erosion of topsoil and depletion of nutrients and microorganisms in the soil.
Why are most soil microorganisms found near the surface soil?
because soil will give more nutrients to the micro organisms for growing
What is the role of microorganisms of carbon cycle in soil?
it has'nt got one
What is the general term for orgainsms that live in soil and fallen leaves on the forest floor?
Microorganisms are found in soil and leaves.
What region has the highest soil performance with a medium soil resistance?
malaysia
How is another product is made by using the processes of microorganisms?
By the soil and by the cow poop
