What is leghemoglobin function?

Leghemoglobin is a heme-containing protein responsible for carrying oxygen in the root nodules of soybean, alfalfa, and other nitrogen-fixing plants. Biologically, soybean leghemoglobin works in a symbiotic relationship and provides soil bacteria with oxygen.

What is meant by leghaemoglobin?

Leghemoglobin (also leghaemoglobin or legoglobin) is an oxygen-carrying phytoglobin found in the nitrogen-fixing root nodules of leguminous plants.

What is leghaemoglobin role in nitrogen fixation?

Leghaemoglobin is a pink-colored pigment that is present in the root nodules of leguminous plants. The nitrogenase enzyme is also present along with the leghaemoglobin in the root nodules of the leguminous plants. The main function of this enzyme is nitrogen fixation.

What is the purpose of leghemoglobin in Rhizobium Bacteroids?

Lb probably functions by transporting oxygen to Rhizobium bacteroids, at the same time maintaining a low partial pressure of oxygen to protect nitrogenase from oxygen-inactivation.

Why leghaemoglobin is called oxygen scavenger?

Leghaemoglobin is an oxygen-carrying pigment, it decreases the free oxygen concentration in root nodules to maintain anaerobic conditions required for nitrogenase activity. Therefore, it is called an oxygen scavenger.

Why is leghaemoglobin so called?

Leghaemoglobin is a red-coloured pigment found in the root nodules of leguminous plants. It is named so because it chemically and structurally resembles hemoglobin.

Why is leghaemoglobin so called What is its function?

1 Answer. Leghaemoglobin resembles the haemoglobin of vertebrates. Since it is present in the leguminous plants it is called as leghaemoglobin. It binds with oxygen and creates an anaerobic condition.

How is leghemoglobin formed?

Leghemoglobin is produced as a result of symbiotic association between bacteroid and plant. The major role of leghemoglobin involves protection of nitrogenase enzyme from denaturation, if exposed to atmospheric concentration of oxygen, but at the same time supply of ample amount of oxygen to bacteria for respiration.

How does human hemoglobin differ from leghemoglobin?

Haemoglobin is a red coloured protein present in red blood cells (erythrocytes). Haemoglobin plays an important role in carrying oxygen from lungs to all tissues of the body. Whereas leghaemoglobin is a red pigment present in the root nodules of leguminous plants and assists in nitrogen fixation.

Is leghaemoglobin an enzyme?

Ferric leghemoglobin reductase (FLbR) is an enzyme that catalyzes the reduction of ferric leghemoglobin (Lb) to its functional ferrous form using pyridine nucleotides as reductants.