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Role of bacterial cellulases in the transition from free living to root endophytes in rapeseed crops and in the design of efficient biofertilizers

  • 170,122
  • Spain
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Role of bacterial cellulases in the transition from free living to root endophytes in rapeseed crops and in the design of efficient biofertilizers
Funded By European union
Country Spain , Western Europe
Project Value 170,122
Project Detail

One of the main challenges for humanity during next decades will be to increase food production while using scarce resources and protecting the environment, being therefore one of the priorities of the European Program “Horizon 2020”. Plant’s productivity can be enhanced by the activity of Plant Growth-Promoting (PGP) bacteria, applied in agricultural fields as biofertilizers or plant probiotics, constituting an environmental friendly manner to increase crop yields. Biofertilizers have been applied in agriculture during decades, but in many cases bacteria which showed great PGP potential in lab conditions, fail when applied in natural soils, probably because they are out-competed by the soil native microbial populations or they are unable to adapt to the new environmental conditions. Based on the model Rhizobium-clover, it is known that bacterial cellulases are crucial in the bacterial entrance into the root. Nevertheless, the implication of these enzymes in the active entrance of bacterial endophytes in non-legume crops has not been studied yet. This project aims to research, using a trascriptomic approach and endophytes mutant strains isolation, the role of cellulases in the capability of endophytes to enter non-legume plant roots, using rapeseed (B. napus) as model plant. If cellulase encoding genes enable active root infection, giving an advantage over passive mechanisms, selection of bacterial strains not only on the base of their PGP capacity, but also on their ability to enter the plant -where they have less competitors and are protected from abiotic stresses-, will allow the design of more efficient bacterial biofertilizers. The ultimate goal of this project is to lay the firm foundations for the development of biological microbial-based fertilizers which shall allow the reduction or even suppression of chemical fertilizers (dangerous for human health and environment and contributing to the climate change) while maintaining or increasing crops production.

Sector Food and Agriculture

Contact Details

Address Patio de Escuelas, 1 37008 SALAMANCA Spain
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