2008
DOI: 10.1074/jbc.m801392200
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Activation of MAPK Kinase 9 Induces Ethylene and Camalexin Biosynthesis and Enhances Sensitivity to Salt Stress in Arabidopsis

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Cited by 325 publications
(315 citation statements)
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“…In fact, while many MAP kinases are described to be positively regulated under abiotic stresses, some MAP kinases play negative roles in stress tolerance. For example, overexpression of the MAP kinases, OsMAPK33 in rice ) and MKK9 in Arabidopsis (Xu et al 2008), results in high sensitivity of rice and Arabidopsis, respectively, to salt stress. Moreover, the inactivation of the Arabidopsis MKK9 by the insertion of transferred DNA (T-DNA) generates salt-insensitive phenotypes that germinate at up to 150 mM NaCl, with rapid induction of RD22 and RD29 stress genes (Alzwiy and Morris 2007).…”
Section: Map Kinase Complexity In Environmental Stresses' Signalingmentioning
confidence: 99%
“…In fact, while many MAP kinases are described to be positively regulated under abiotic stresses, some MAP kinases play negative roles in stress tolerance. For example, overexpression of the MAP kinases, OsMAPK33 in rice ) and MKK9 in Arabidopsis (Xu et al 2008), results in high sensitivity of rice and Arabidopsis, respectively, to salt stress. Moreover, the inactivation of the Arabidopsis MKK9 by the insertion of transferred DNA (T-DNA) generates salt-insensitive phenotypes that germinate at up to 150 mM NaCl, with rapid induction of RD22 and RD29 stress genes (Alzwiy and Morris 2007).…”
Section: Map Kinase Complexity In Environmental Stresses' Signalingmentioning
confidence: 99%
“…Several cytochrome P450 enzyme-encoding genes were coexpressed with PEN2 and PEN3 (Dataset S1), including CYP83B1 (SUR2), which is required for indole glucosinolate biosynthesis (13). Other genes include MPK3 and MKK9, which were recently shown to regulate biosynthesis of the indolic phytoalexin camalexin (19,20). Consistent with a role for the R2R3-MYB transcription factor MYB51 in regulating indole glucosinolate biosynthetic genes (21), the respective insertion lines exhibited enhanced fungal entry in conjunction with globally reduced levels of all metabolites tested (Figs.…”
Section: Identification Of Novel Genes Required For Defense Against Dmentioning
confidence: 99%
“…A module comprising the MAP3K MEKK1, the MAP2Ks MKK1 and MKK2, and the MAPK MPK4 (MEKK1/MKK1-MKK2/ MPK4) negatively controls defense responses (Kong et al, 2012;Rasmussen et al, 2012) by negatively regulating the expression of the MAP3K MEKK2, which triggers a salicylate (SA)-dependent autoimmunity response when the cascade is compromised (Berriri et al, 2012;Su et al, 2013). Two other modules, MEKK1-MAPKKKa/MKK4-MKK5/MPK3-MPK6 and MKK9/ MPK3-MPK6 (Xu et al, 2008), mediate the activation of defense responses, including the synthesis of ethylene and camalexin, i.e. a phytoalexin with antimicrobial activity.…”
mentioning
confidence: 99%