**8. Conclusions**

The plant growth promoting endophytic bacteria well known as *X. autotrophicus* is an exceptional genus and species of procaryote due to the ability it has to simultaneously fix CO2 and N2, it can exist in water, soil and in association with a wide variety of plant species, specifically because by invading the root tissue it influences positively in the absorbing both nitrogen and phosphorous regulated forms of fertilization by the synthesis of acid and alkaline phosphatases in soil with phosphate availability problems or where the application of the phosphate fertilizer precipitates. Whereas by converting seed exudates and derivates and photosynthesis inside the root's plants in phytohormons have an interesting potential as a biofertilizer. As well as for the biological control of weeds that compete with the cultivation of domestic plants, it can contribute to sustainable agricultural production that reduces the effects of contamination by unregulated fertilization and application of chemical herbicides. Besides that *X. autotrophicus* is has been

Xanthobacter autotrophicus *an Endophytic Beneficial Bacterium for Wheat and Other Plants… DOI: http://dx.doi.org/10.5772/intechopen.102066*

reported as useful biological tool for bioremediation of water and soil polluted by chemical agents. Easy to growth in simple culture media low cost to reproduce to industrial level, a friendly genus and bacterial species for humans, animals, plants and the environment.
