OrangerV1, PascalFrancis, Corpus, bibRecord, 000090

Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)

Identifieur interne : 000090 ( PascalFrancis/Corpus ); précédent : 000089; suivant : 000091

Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)

Auteurs : YIN WANG ; Ji-Hong Liu

Source :

Journal of plant physiology [ 0176-1617 ] ; 2012.

RBID : Pascal:12-0321452

Descripteurs français

Pascal (Inist)
- Exogène, Sensibilité résistance, Protéine PR, Agrume, Citrus sinensis, Xanthomonas axonopodis, Acide salicylique, Peroxyde d'hydrogène, Chancre plante, Physiologie végétale.

English descriptors

KwdEn :
- Citrus fruit, Citrus sinensis, Exogenous, Hydrogen peroxide, Pathogenesis related protein, Plant cankers, Plant physiology, Salicylic acid, Sensitivity resistance, Xanthomonas axonopodis.

Abstract

Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A11	`02`	`1`		`@1 LIU (Ji-Hong)`
A14	`01`			`@1 Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, HuazhongAgricultural University @2 Wuhan 430070 @3 CHN @Z 1 aut. @Z 2 aut.`
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C01	`01`		`ENG`	@0 Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.
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C03	`05`	`X`	`ENG`	`@0 Citrus sinensis @2 NS @5 11`
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C07	`01`	`X`	`FRE`	`@0 Rutaceae @2 NS`
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C07	`01`	`X`	`SPA`	`@0 Rutaceae @2 NS`
C07	`02`	`X`	`FRE`	`@0 Dicotyledones @2 NS`
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C07	`03`	`X`	`ENG`	`@0 Angiospermae @2 NS`
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C07	`04`	`X`	`FRE`	`@0 Spermatophyta @2 NS`
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C07	`06`	`X`	`FRE`	`@0 Pseudomonadales @2 NS`
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C07	`07`	`X`	`FRE`	`@0 Bactérie`
C07	`07`	`X`	`ENG`	`@0 Bacteria`
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N21				`@1 247`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 12-0321452 INIST
ET :	Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)
AU :	YIN WANG; LIU (Ji-Hong)
AF :	Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, HuazhongAgricultural University/Wuhan 430070/Chine (1 aut., 2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of plant physiology; ISSN 0176-1617; Coden JPPHEY; Allemagne; Da. 2012; Vol. 169; No. 12; Pp. 1143-1149; Bibl. 3/4 p.
LA :	Anglais
EA :	Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.
CC :	002A10; 002A34F
FD :	Exogène; Sensibilité résistance; Protéine PR; Agrume; Citrus sinensis; Xanthomonas axonopodis; Acide salicylique; Peroxyde d'hydrogène; Chancre plante; Physiologie végétale
FG :	Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Pseudomonadaceae; Pseudomonadales; Bactérie; Phytopathogène
ED :	Exogenous; Sensitivity resistance; Pathogenesis related protein; Citrus fruit; Citrus sinensis; Xanthomonas axonopodis; Salicylic acid; Hydrogen peroxide; Plant cankers; Plant physiology
EG :	Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Pseudomonadaceae; Pseudomonadales; Bacteria; Plant pathogen
SD :	Exógeno; Sensibilidad resistencia; Proteína PR; Agrios; Citrus sinensis; Xanthomonas axonopodis; Peróxido de hydrogeno; Cancro; Fisiología vegetal
LO :	INIST-922.354000506669900030
ID :	12-0321452

Links to Exploration step

Pascal:12-0321452

Le document en format XML

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<front><div type="abstract" xml:lang="en">Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H<sub>2</sub>
O<sub>2</sub>
 level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.</div>
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<server><NO>PASCAL 12-0321452 INIST</NO>
<ET>Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)</ET>
<AU>YIN WANG; LIU (Ji-Hong)</AU>
<AF>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, HuazhongAgricultural University/Wuhan 430070/Chine (1 aut., 2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of plant physiology; ISSN 0176-1617; Coden JPPHEY; Allemagne; Da. 2012; Vol. 169; No. 12; Pp. 1143-1149; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H<sub>2</sub>
O<sub>2</sub>
 level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.</EA>
<CC>002A10; 002A34F</CC>
<FD>Exogène; Sensibilité résistance; Protéine PR; Agrume; Citrus sinensis; Xanthomonas axonopodis; Acide salicylique; Peroxyde d'hydrogène; Chancre plante; Physiologie végétale</FD>
<FG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Pseudomonadaceae; Pseudomonadales; Bactérie; Phytopathogène</FG>
<ED>Exogenous; Sensitivity resistance; Pathogenesis related protein; Citrus fruit; Citrus sinensis; Xanthomonas axonopodis; Salicylic acid; Hydrogen peroxide; Plant cankers; Plant physiology</ED>
<EG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Pseudomonadaceae; Pseudomonadales; Bacteria; Plant pathogen</EG>
<SD>Exógeno; Sensibilidad resistencia; Proteína PR; Agrios; Citrus sinensis; Xanthomonas axonopodis; Peróxido de hydrogeno; Cancro; Fisiología vegetal</SD>
<LO>INIST-922.354000506669900030</LO>
<ID>12-0321452</ID>
</server>
</inist>
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Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)

Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck)

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