Classification of Rhizobium

What is Rhizobium?

Rhizobium is a group of bacteria. The word rhizobium refers to the genus of various species that come under this group such as Rhizobium leguminous, Rhizobium alamii, and Rhizobium eguminosarum. It’s a gram-negative soil bacteria that is present in the roots of leguminous plants. It was first cultivated and isolated by Martinus Beisernick in 1888....

Role of Rhizobium

Rhizobium is a versatile microorganism that plays various roles in different aspects such as the environment, plants animals, etc. But one of the most important roles it plays is Nitrogen Fixation. Which is nothing but conversion of atmospheric nitrogen into usable compounds. Before digging more about this topic lets understand why we need to fix nitrogen....

What is Nitrogen Fixation?

Nitrogen fixation is a phenomenon in which atmospheric nitrogen is converted into usable compounds such as ammonia . That can occur only in leguminous plants such as pea or bean plants. Rhizobium attaches to the root of a leguminous plant and stimulates biological nitrogen fixation. Which is briefly explained below....

Why Nitrogen Fixation?

Our atmosphere has 78% nitrogen gas. Rhizobium are known to form symbiotic relationships with leguminous plants (plants give organic compounds made by photosynthesis ,in return bacteria fix nitrogen for the plant ) . Nitrogen is one of the essential constituents of all living organisms as part of proteins, chlorophyll, nucleic acids and vitamins. Nitrogen cannot be taken directly by plants and animals to convert nitrogen into usable form there is a phenomenon called fixation which occurs in leguminous plants only....

Classification of Rhizobium

Rhizobium are single celled usually rod shaped bacteria of 0.8 – 2.0 micro units .It often has flagella .Rhizobium attach to the roots of leguminous plants which gives a nodule-like appearance called root nodule. Classification of Rhizobium is given below:...

Disease Caused by Rhizobium

While Rhizobia plays a crucial role in enhancing plant growth by facilitating nitrogen fixation, it’s important to be aware that certain strains can also act as pathogens, potentially leading to detrimental effects on plant health. Some species of Rhizobia such as Rhizobium rhizogenes and Rhizobium radiobium cause serious disease in plants . Since it is gram negative bacteria its cell wall contains a thin layer of peptidoglycan and lipoprotein which make them resistant to drugs and antibiotics ....

FAQ’s – Rhizobium

1. Nitrogen fixation can only be performed by the rhizobium bacteria?...