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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2012.07.028
|2 doi
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|a pubmed24n0734.xml
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|a (NLM)22906813
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|a (PII)S0981-9428(12)00207-0
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|a DE-627
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|e rakwb
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|a eng
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|a Gindro, Katia
|e verfasserin
|4 aut
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|a Protease inhibitors decrease the resistance of Vitaceae to Plasmopara viticola
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 24.12.2013
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 Elsevier Masson SAS. All rights reserved.
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|a Plasmopara viticola must successfully infect susceptible grapevine cultivars to complete its biological cycle. In resistant grapevine varieties, P. viticola is blocked by the activation of defense mechanisms; these defense mechanisms produce hypersensitive reactions, which are related to programmed cell death. In animals, programmed cell death is dependent on caspase activities. In plants, different caspase-like proteases assume the same functions. To examine the roles of caspase-like proteases in P. viticola-grapevine interactions, three varieties of grapevine with different levels of P. viticola resistance were chosen. These grapevine varieties were treated with either PMSF, a serine protease inhibitor, or E-64, a cysteine protease inhibitor. The development of the pathogen was followed microscopically, and the plant defense reactions were estimated through stilbene quantification. Both protease inhibitor treatments increased the infection rate in the resistant and immune varieties, diminished the production of toxic stilbenes and changed the level of the plants' susceptibility to the pathogen. In particular, after either protease treatment, the cultivar that was originally immune became resistant (hyphae and haustoria were observed), the resistant cultivar reached the level of a susceptible cultivar (sporulation was observed) and the susceptible cultivar became more sensitive (P. viticola colonized the entirety of the leaf mesophyll)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cysteine Proteinase Inhibitors
|2 NLM
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|a Protease Inhibitors
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|a Serine Proteinase Inhibitors
|2 NLM
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|a Stilbenes
|2 NLM
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|a Phenylmethylsulfonyl Fluoride
|2 NLM
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|a 57KD15003I
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|a Leucine
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|2 NLM
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|a Berger, Valentine
|e verfasserin
|4 aut
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|a Godard, Sophie
|e verfasserin
|4 aut
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|a Voinesco, Francine
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|a Schnee, Sylvain
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|a Viret, Olivier
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|a Alonso-Villaverde, Virginia
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 60(2012) vom: 14. Nov., Seite 74-80
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:60
|g year:2012
|g day:14
|g month:11
|g pages:74-80
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|u http://dx.doi.org/10.1016/j.plaphy.2012.07.028
|3 Volltext
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