Multiple Autoregulation of Nodulation (AON) Signals Identified through Split Root Analysis of Medicago truncatula sunn and rdn1 Mutants. [PDF]
Plants (Basel), 2015 Nodulation is energetically costly to the host: legumes balance the nitrogen demand with the energy expense by limiting the number of nodules through long-distance signaling. A split root system was used to investigate systemic autoregulation of nodulation (AON) in Medicago truncatula and the role of the AON genes RDN1 and SUNN in the regulatory ...
Kassaw T, Bridges W, Frugoli J.
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Computational complementation: a modelling approach to study signalling mechanisms during legume autoregulation of nodulation. [PDF]
PLoS Comput Biol, 2010 Autoregulation of nodulation (AON) is a long-distance signalling regulatory system maintaining the balance of symbiotic nodulation in legume plants. However, the intricacy of internal signalling and absence of flux and biochemical data, are a bottleneck for investigation of AON.
Han L, Hanan J, Gresshoff PM.
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Investigation of Downstream Signals of the Soybean Autoregulation of Nodulation Receptor Kinase GmNARK [PDF]
Molecular Plant-Microbe Interactions®, 2008 The Glycine max nodule autoregulation receptor kinase (GmNARK) plays a central role in the systemic signal transduction pathway controlling nodulation in soybean. We used transcriptional profiling to identify potential downstream signals of this receptor kinase.
Kinkema, M.D., Gresshoff, P.M.
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The Defective in Autoregulation (DAR) gene of Medicago truncatula encodes a protein involved in regulating nodulation and arbuscular mycorrhiza. [PDF]
BMC Plant BiolAbstract Background Legumes utilize a long-distance signaling feedback pathway, termed Autoregulation of Nodulation (AON), to regulate the establishment and maintenance of their symbiosis with rhizobia. Several proteins key to this pathway have been discovered, but the AON pathway is not completely understood.
Schnabel E +8 more
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A Medicago truncatula Autoregulation of Nodulation Mutant Transcriptome Analysis Reveals Disruption of the SUNN Pathway Causes Constitutive Expression Changes in Some Genes, but Overall Response to Rhizobia Resembles Wild-Type, Including Induction of TML1 and TML2. [PDF]
Curr Issues Mol Biol, 2023 Nodule number regulation in legumes is controlled by a feedback loop that integrates nutrient and rhizobia symbiont status signals to regulate nodule development.
Schnabel EL +5 more
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Progress in the Self-Regulation System in Legume Nodule Development-AON (Autoregulation of Nodulation). [PDF]
Int J Mol Sci, 2022 The formation and development of legumes nodules requires a lot of energy. Legumes must strictly control the number and activity of nodules to ensure efficient energy distribution. The AON system can limit the number of rhizobia infections and nodule numbers through the systemic signal pathway network that the aboveground and belowground parts ...
Li Y +7 more
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Shoot Extracts from Two Low Nodulation Mutants Significantly Reduce Nodule Number in Pea [PDF]
Plants, 2020 E107 and E132 are pea mutants that nodulate poorly. Because they have a shoot-controlled nodulation phenotype, we asked if their mutated genes were implicated in the autoregulation of nodulation (AON), a mechanism which consists of two systemic circuits,
Guinel, Frédérique +1 more
core +4 more sources
Autoregulation of nodulation pathway is dispensable for nitrate-induced control of rhizobial infection. [PDF]
Plant Signal Behav, 2020 Legumes possess the autoregulation of nodulation (AON) pathway which is responsible for maintaining optimal root nodule number. In Lotus japonicus, AON comprises the CLE-HAR1-TML module, which plays an essential role in transmitting signals via root-to-shoot-to-root long-distance signaling.
Nishida H +4 more
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Molecular mechanisms controlling legume autoregulation of nodulation. [PDF]
Ann Bot, 2011 High input costs and environmental pressures to reduce nitrogen use in agriculture have increased the competitive advantage of legume crops. The symbiotic relationship that legumes form with nitrogen-fixing soil bacteria in root nodules is central to this advantage.Understanding how legume plants maintain control of nodulation to balance the nitrogen ...
Reid DE +4 more
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A functional-structural modelling approach to autoregulation of nodulation. [PDF]
Ann Bot, 2011 Autoregulation of nodulation is a long-distance shoot-root signalling regulatory system that regulates nodule meristem proliferation in legume plants. However, due to the intricacy and subtleness of the signalling nature in plants, molecular and biochemical details underlying mechanisms of autoregulation of nodulation remain largely unknown.
Han L, Gresshoff PM, Hanan J.
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