It was felt that the excess honeydew would nourish soil micro-organisms, including nitrogen fixers.

This requires mechanisms for nitrogen fixers to protect nitrogenase from oxygen in vivo.

All the nitrogen fixers are haloalkaliphilic in nature as they can grow only at pH-11.

Some species rely on fire regimes for germination, and are an understorey dominant and nitrogen fixer.

He selected and described the species Azotobacter chroococcum - the first aerobic, free-living nitrogen fixer.

The plant is one of the best nitrogen fixers with nodulation accomplished by the soil bacterium Rhizobium.

It is also a non-legume nitrogen fixer.

They are avid nitrogen fixers and are therefore probably important in the fertility of paddy fields.

At least a few members of this genus are non-legume nitrogen fixers.

It is also claimed to be a nitrogen fixer, by way of rhizobium, which benefits the surrounding soil and plants.