2017
DOI: 10.1104/pp.16.01185
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Three Pectin Methylesterase Inhibitors Protect Cell Wall Integrity for Arabidopsis Immunity to Botrytis

Abstract: Infection by necrotrophs is a complex process that starts with the breakdown of the cell wall (CW) matrix initiated by CW-degrading enzymes and results in an extensive tissue maceration. Plants exploit induced defense mechanisms based on biochemical modification of the CW components to protect themselves from enzymatic degradation. The pectin matrix is the main CW target of , and pectin methylesterification status is strongly altered in response to infection. The methylesterification of pectin is controlled ma… Show more

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Cited by 158 publications
(169 citation statements)
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References 130 publications
(141 reference statements)
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“…4E). These 240 results were consistent with a previous report that showed that AtPMEI expression is 241 strictly regulated by JA and ET (Lionetti et al, 2017). In that study, after induction …”
supporting
confidence: 83%
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“…4E). These 240 results were consistent with a previous report that showed that AtPMEI expression is 241 strictly regulated by JA and ET (Lionetti et al, 2017). In that study, after induction …”
supporting
confidence: 83%
“…In addition, plant resistance to fungal pathogens is compromised in PMEI 403 mutants where PMEI expression is impaired (Lionetti et al, 2017). In agreement with 404 these previous findings, GhPMEI3 was able to restrict fungal mycelial growth.…”
supporting
confidence: 80%
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“…However, differences in the relative abundance of VOCs emitted in common were recorded among these pathogens. In particular, B. cinerea showed the most rapid and intense release of methanol during growth on AA, probably due to its faster mycelial growth rate (data not reported) and the marked pectin demethylation caused by this fungus (Lionetti et al , ); P. expansum emitted the highest amounts of furan, m ‐cresol, ( Z )‐β‐farnesene, geosmin ( trans ‐1,10‐dimethyl‐ trans ‐9‐decanol) and 3‐methylanisole (1‐methoxy‐3‐methylbenzene), in agreement with other reports (Azeem et al , ; Wang et al , ); while C. fioriniae emitted the most abundant concentration of acetaldehyde and ethanol. Unique emission of some minor VOCs was also recorded by a single fungal species.…”
Section: Discussionmentioning
confidence: 98%