Importance Of bacteria Flashcards
What is nitrogen fixation
Conversion of nitrogen gas into nitrogenous compounds by the action of some bacteria
What is the mean nitrogen compound used by plants
Nitrate
Name ammonifying bacteria
Bacillus vulgaris
Bacillus mycoid
Bacillus ramosus
What is denitrification
The process of conversion of nitrate into free nitrogen gas by the action of bacteria is called denitrification
Name some denitrification bacteria
- Theobacillus denitrificance
- Pseudomonas denitrificance
Name the bacteria which changes ammonia into nitrite
Nitrosomonas
Nitrosococcus
Name the bacteria which changes nitrite to nitrate
Nitrobacter
What is ammonification
Conversion of nitrogenous compounds obtained from proteins of dead plants and animals into ammonia by the action of bacteria
Biological nitrogen fixation is also called
Diazotrophy
Name for Symbiotic diaazitrophs
Rhizobium
Azorhizobium
Frankia
Azospirillum
Name a D Which shows lose symbiosis or superficial symbiosis
Azospirillum
Shows symbiosis with root surface of cereals
Azospirillum
Symbiotic relationship with root nodules of non-legume plants
Frankia
Symbiotic relationship with stem nodules of SESBANIA
Azorhizobium
Forms symbiotic association with root nodules of legume plants
Rhizobium
Which enzyme converts nitrogen into ammonia
Nitrogenase
Name some known legumes which form sym biotic relationship with Frankia
Alnus
Casuarina
Legumes
Pea
Sweet Clover
Clover bean
Broad bean
Alfalfa
Lentils
Name an actinomycetes which is D
Frankia
Name two bacteria present in soil in free form
Rhizobium
Frankia