Invasion of Lotus japonicus root hairless 1 by Mesorhizobium loti Involves the Nodulation Factor-Dependent Induction of Root Hairs
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منابع مشابه
Invasion of Lotus japonicus root hairless 1 by Mesorhizobium loti involves the nodulation factor-dependent induction of root hairs.
In many legumes, including Lotus japonicus and Medicago truncatula, susceptible root hairs are the primary sites for the initial signal perception and physical contact between the host plant and the compatible nitrogen-fixing bacteria that leads to the initiation of root invasion and nodule organogenesis. However, diverse mechanisms of nodulation have been described in a variety of legume speci...
متن کاملRoot hair deformation of symbiosis-deficient mutants of Lotus japonicus by application of Nod factor from Mesorhizobium loti.
In the model leguminous plant Lotus japonicus, the reception of a symbiotic signal called Nod factor (NF), which is secreted by the symbiont bacterium Mesorhizobium loti, induces wavy shaped root hairs. This is called root hair deformation. To dissect the root hair deformation process, we studied symbiosis- deficient mutants of L. japonicus, castor, nup85, ccamk and nsp2. The CASTOR, NUP85, and...
متن کاملShoot-applied MeJA suppresses root nodulation in Lotus japonicus.
To maintain a symbiotic balance, leguminous plants have a systemic regulatory system called autoregulation of nodulation (AUT). Since AUT is schematically similar to systemic resistance found in plant-pathogen interactions, we examined the effects of methyl jasmonate (MeJA) or methyl salicylate (MeSA) on nodulation in Lotus japonicus. Shoot-applied MeJA strongly suppressed nodulation in the wil...
متن کاملLotus japonicus alters in planta fitness of Mesorhizobium loti dependent on symbiotic nitrogen fixation
Rhizobial bacteria are known for their capacity to fix nitrogen for legume hosts. However ineffective rhizobial genotypes exist and can trigger the formation of nodules but fix little if any nitrogen for hosts. Legumes must employ mechanisms to minimize exploitation by the ineffective rhizobial genotypes to limit fitness costs and stabilize the symbiosis. Here we address two key questions about...
متن کاملAnalysis of Nod-factor-induced calcium signaling in root hairs of symbiotically defective mutants of Lotus japonicus.
Nodulation (Nod)-factor signaling molecules are essential for rhizobia to initiate the nitrogen-fixing symbiotic interaction with legumes. Using a dual dye ratiometric calcium imaging technique, we have shown that 10 nM Nod factor added to roots of Lotus japonicus seedlings induces an intracellular calcium increase (calcium flux) that precedes oscillations in intracellular calcium (calcium spik...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2005
ISSN: 1532-2548,0032-0889
DOI: 10.1104/pp.104.057513