Rootstock increases the physiological defence of tomato plants against Pseudomonas syringae pv. tomato infection

被引：9

作者：

Alfaro-Quezada, Juan Felipe ^{[1
,2
,3
,4
]}

Martinez, Juan Pablo ^{[1
]}

Molinett, Sebastian ^{[1
]}

Valenzuela, Miryam ^{[2
,3
]}

Montenegro, Ivan ^{[5
]}

Ramirez, Ingrid ^{[3
]}

Dorta, Fernando ^{[3
]}

Avila-Valdes, Andrea ^{[6
,7
,8
]}

Gharbi, Emna ^{[9
]}

Zhou, Mingxi ^{[9
,10
]}

Dailly, Helene ^{[9
]}

Quinet, Muriel ^{[9
]}

Lutts, Stanley ^{[9
]}

Seeger, Michael ^{[2
,3
]}

机构：

[1] Inst Invest Agropecuarias INIA, Lab Fisiol & Biol Mol Vegetal, Ctr Reg La Cruz, Chorrillos 86, La Cruz, Chile

[2] Univ Tecn Federico Santa Maria, Dept Quim, Lab Microbiol Mol & Biotecnol Ambiental, Ave Espana 1680, Valparaiso, Chile

[3] Univ Tecn Federico Santa Maria, Ctr Biotecnol Dr Daniel Alkalay Lowitt, Gen Bari 699, Valparaiso, Chile

[4] Inst Invest Agropecuarias INIA, Lab Fitopatol Frutales, Ctr Reg Quilamapu, Ave Vicente Mendez 515, Chillan, Chile

[5] Univ Valparaiso, Escuela Obstet & Puericultura, Fac Med, Angamos 655, Vina Del Mar, Chile

[6] Univ Austral Chile, Fac Agr Sci, Grad Sch, Campus Isla Teja, Valdivia, Chile

[7] Univ Austral Chile, Ctr Invest Suelos Volcan, Campus Isla Teja, Valdivia, Chile

[8] Univ Chile, Fac Ciencias Agron, Dept Prod Agr, Santa Rosa 11315, Santiago, Chile

[9] Catholic Univ Louvain, Earth & Life Inst Agron ELI A, Grp Rech Physiol Vegetale GRPV, Louvain La Neuve, Belgium

[10] Czech Acad Sci, Inst Plant Mol Biol, Biol Ctr, Ceske Budejovice 37005, Czech Republic

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2023年 / 74卷 / 09期

关键词：

Biotic stress; defence; hydrogen sulfide; plant-microbe interaction; Pseudomonas syringae pv; tomato; rootstock; tolerance; CV PONCHO NEGRO; SOLANUM-LYCOPERSICON; HYDROGEN-SULFIDE; ANTIOXIDANT ENZYMES; SALICYLIC-ACID; GLUTATHIONE-REDUCTASE; ASCORBATE PEROXIDASE; DISEASE RESISTANCE; OXIDATIVE STRESS; FREE POLYAMINES;

D O I：

10.1093/jxb/erad040

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Climate change has intensified the infection of tomato plants by pathogens such as Pseudomonas syringae pv. tomato (Pst). Rootstocks may increase plant tolerance to leaf phytopathogens. The aim of this study was to evaluate the effects of the tolerant Poncho Negro (R) tomato rootstock on physiological defence and the role of hydrogen sulfide (H2S) in susceptible Limachino (L) tomato plant responses to Pst attack. Ungrafted (L), self-grafted (L/L), and grafted (L/R) plants were infected with Pst. Rootstock increased the concentration of antioxidant compounds including ascorbate in the scion. Tolerant rootstock induced an increase of H2S in the scion, which correlated with enhanced expression of the SlAPX2 gene. A high accumulation of salicylic acid was observed in Pst-inoculated grafted L/L and L/R plants, but this was higher in L/R plants. The increase of H2S during Pst infection was associated with a reduction of ethylene in L/R plants. Our study indicates that the Poncho Negro rootstock reduced the symptoms of bacterial speck disease in the Limachino tomato plants, conferring tolerance to Pst infection. This study provides new knowledge about the impact of rootstock in the defence of tomato plants against leaf pathogens that could be used in sustainable management of tomato cultivation.

引用

页码：2891 / 2911

页数：21

共 133 条

[1] A plant spermine oxidase/dehydrogenase regulated by the proteasome and polyamines [J].