Plant-soil interrelationship, factor of evolution for bacterial populations

Pasca, Marinel and Cojocariu, Luminita and Horablaga, Marinel and Bordean, Despina-Maria and Filimon, Nicoleta and Popescu, Roxana and Darlea, Auruta and Borozan, Aurica Breica: Plant-soil interrelationship, factor of evolution for bacterial populations. Review on agriculture and rural development, (1) 1. pp. 346-351. (2012)

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Abstract

The rhizosphere is influenced by the region, soil and plant roots. The area that is not influenced by plant roots has been named edaphosphere. Plant roots release a wide range of compounds in the rhizosphere, which create unique micro-environments for the microorganisms present in the soil. By its root exudates, species Vicia sativa contributes to an increase in the bacterial density (fact proven by comparison with the control variant), to the improvement of the fertility of the soil (moderately gleyic eutric cambisol) on which it is cultivated and to plant growth. Even there are similarities between the rhizospheric area (culture medium: soil extract), control variants, and respectively edaphosphere (culture medium: soil extract) and rhizospherical bacteria isolated on Topping medium, small differences have been noticed.

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