Betekenis van:
inoculum
inoculum
Zelfstandig naamwoord
- a substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease
Synoniemen
Hyperoniemen
Voorbeeldzinnen
- Inoculum
- Preparation of inoculum culture
- Three examples of suitable inoculum are given:
- A further source for the inoculum is surface water.
- The inoculum culture shall be incubated under the same conditions as the test cultures.
- Measure of the dosage (inoculum size) required to cause a specific degree of pathogenicity.
- If no haemagglutination is detected, this procedure must be repeated using undiluted allantoic/amniotic fluid as inoculum.
- To avoid synchronous cell divisions during the test, a second propagation step of the inoculum culture may be required.
- Any practice resulting in the removal, destruction or burial of infected crop residues, such as ploughing, is likely to reduce the Fusarium inoculum for the following crop.
- Measure the increase in biomass in the inoculum culture to ensure that growth is within the normal range for the test strain under the culturing conditions.
- If the equipment used for biomass measurement allows sufficiently precise determination of the low inoculum biomass (e.g. flow cytometer) then the measured initial biomass concentration can be used.
- The algal biomass should be adjusted in order to allow exponential growth to prevail in the inoculum culture until the test starts.
- Colonies consisting of 2 to 4 visible fronds are transferred from the inoculum culture and randomly assigned to the test vessels under aseptic conditions.
- Test solutions of the chosen concentrations are usually prepared by mixing a stock solution of the test substance with growth medium and inoculum culture.
- Prepare an inoculum of approximately 106 cells per ml from three day cultures of the isolate to be tested and an appropriate positive control strain of C. m. subsp. sepedonicus.