Plant belonging to Leguminosae family can establish a symbiotic relationship with nitrogen-fixing bacteria, termed rhizobia, that lead to the formation of a new organ, the root nodule. This organogenetic pathway starts as a consequence of a molecular cross-talk between plants and bacteria. The systemic pathway, also termed Autoregulation Of Nodulation (AON), is a mechanism by which a plant controls the number of nodules inhibiting further nodule formation after the first few nodules have been formed, as a consequence of a molecular communication between root and shoot.With the aim of gaining a deeper insight in the signalling cascade of AON, we compared the root and shoot proteomes of Medicago truncatula plants inoculated with the symbiotic rhizobium, Sinorhizobium meliloti, with those of uninoculated plants.
A proteomic approach to study the autoregulation of nodulation in Medicago truncatula.
MOLESINI, Barbara;PII, Youry;CECCONI, Daniela;Bulgarini A;PANDOLFINI, Tiziana
2011-01-01
Abstract
Plant belonging to Leguminosae family can establish a symbiotic relationship with nitrogen-fixing bacteria, termed rhizobia, that lead to the formation of a new organ, the root nodule. This organogenetic pathway starts as a consequence of a molecular cross-talk between plants and bacteria. The systemic pathway, also termed Autoregulation Of Nodulation (AON), is a mechanism by which a plant controls the number of nodules inhibiting further nodule formation after the first few nodules have been formed, as a consequence of a molecular communication between root and shoot.With the aim of gaining a deeper insight in the signalling cascade of AON, we compared the root and shoot proteomes of Medicago truncatula plants inoculated with the symbiotic rhizobium, Sinorhizobium meliloti, with those of uninoculated plants.
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