000			02986nam a22003137a 4500
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008			250307b |||||||| |||| 00| 0 eng d
022			_a0176-1617
040			_aMSU _bEnglish _cMSU _erda
050	0	0	_aQK711.2 JOU
100	1		_aGarcía, Tania _eauthor
245	1	0	_aWounding induces local resistance but systemic susceptibility to Botrytis cinerea in pepper plants _ccreated by Tania García, Jorge Gutiérrez, Javier Veloso, Raquel Gago-Fuentes and José Díaz
264	1		_aAmsterdam: _bElsevier GmbH, _c2015.
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aJournal of plant physiology ; _vVolume 176
520	3		_aCotyledon wounding in pepper caused the early generation of hydrogen peroxide both locally (cotyledons) and systemically (upper true leaves). However, 72 h later there is a different wound response between local and systemic organs, as shown by resistance to the pathogenic fungus Botrytis cinerea, that increased locally and decreased systemically. Signaling by ethylene and jasmonic acid was assessed by using two inhibitors: 1-methylcyclopropene (MCP, inhibitor of ethylene receptors) and ibuprofen (inhibitor of jasmonate biosynthesis). MCP did not affect the modulation of resistance levels to Botrytis by wounding, ruling out the involvement of ethylene signaling. Ibuprofen did not inhibit wound-induced resistance at the local level, but inhibited wound-induced systemic susceptibility. Moreover, changes of biochemical and structural defenses in response to wounding were studied. Peroxidase activity and the expression of a peroxidase gene (CAPO1) increased locally as a response to wounding, but no changes were observed systemically. Lignin deposition was induced in wounded cotyledons, but was repressed in systemic leaves of wounded plants, whereas soluble phenolics did not change locally and decreased systemically. The expression of two other genes involved in plant defense (CABPR1 and CASC1) was also differentially regulated locally and systemically, pointing to a generalized increase in plant defenses at the local level and a systemic decrease as a response to wounding. Wound-induced defenses at the local level coincided with resistance to the necrotroph fungus B. cinerea, whereas depleted defenses in systemic leaves of wounded plants correlated to induced susceptibility against this pathogen. It may be that the local response acts as a sink of energy resources to mount a defense against pathogens, whereas in systemic organs the resources for defense are lower.
650			_aWounding
650			_aCapsicium annuum
650			_aBotryis cinerea
700			_aGutiérrez, Jorge _eco-author
700			_aVeloso, Javier _eco-author
700			_aGago-Fuentes, Raquel _eco-author
700			_aDíaz, José _eco-author
856			_uhttps://doi.org/10.1016/j.jplph.2014.12.013
942			_2lcc _cJA
999			_c169195 _d169195