UTILIZATION OF ROOT-COLONIZING FUNGI FOR IMPROVED PERFORMANCE OF AGRICULTURAL CROPS
2012
Trebicka, Artan | Oelmueller, Ralf | Sherameti, Irena | Nongbri, Pyniarlang | Johnson, Joy
Soil is a non-renewable natural resource which forms all ecosystems on the earth and provides the basis for food production for heterotrophic organisms, including men. The increase in the world population requires also an increase in agricultural production which was and is mainly achieved by massive use of mineral nutrients. However, the experience of the last century has demonstrated that the high mineral input has severe consequences for the ecosystems. An alternative more environmentally friendly strategy for agricultural production is provided by the nature itself: Beneficial root-colonizing fungi and bacteria have tremendous impact on the performance of agricultural plants (crops). Understanding of these symbioses requires knowledge about the communication between the partners. The microbes often release bioactive compounds into the rhizosphere which activate signaling or transport processes and thus promote plant performance. A general new concept for fertilizers in the agriculture could be to utilize microbe-derived bio-effectors in combination with appropriate nutrient supplies to promote biomass and yield production of agricultural plants while simultaneously reducing the input of agrochemicals. Here, we describe some concepts for the identification and utilization of microbial preparations and microbe-derived bio-effectors for the improvement of the performance of agricultural plants, using the root-colonizing endophytic fungus Piriformospora indica.
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