Number of the records: 1
Rootstock increases the physiological defence of tomato plants against Pseudomonas syringae pv. tomato infection
- 1.
SYSNO ASEP 0584261 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Rootstock increases the physiological defence of tomato plants against Pseudomonas syringae pv. tomato infection Author(s) Alfaro-Quezada, J. F. (CL)
Martínez, J. P. (CL)
Molinett, S. (CL)
Valenzuela, M. (CL)
Montenegro, I. (CL)
Ramirez, I. (CL)
Dorta, F. (CL)
Avila-Valdes, A. (CL)
Gharbi, E. (BE)
Zhou, Ming-Xi (BC-A) RID, ORCID
Dailly, H. (BE)
Quinet, M. (BE)
Lutts, S. (BE)
Seeger, M. (CL)Number of authors 14 Source Title Journal of Experimental Botany. - : Oxford University Press - ISSN 0022-0957
Roč. 74, č. 9 (2023), s. 2891-2911Number of pages 21 s. Language eng - English Country US - United States Keywords Biotic stress ; defence ; hydrogen sulfide ; plant-microbe interaction ; Pseudomonas syringae pv ; tomato ; rootstock ; tolerance Subject RIV GF - Plant Pathology, Vermin, Weed, Plant Protection OECD category Plant sciences, botany Method of publishing Open access Institutional support BC-A - RVO:60077344 UT WOS 000950621700001 EID SCOPUS 85168493872 DOI 10.1093/jxb/erad040 Annotation 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. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2024 Electronic address https://academic.oup.com/jxb/article/74/9/2891/7022100?login=true
Number of the records: 1