Local and systemic changes in gene expression induced in tomato plants by wounding and by elicitor treatment

Planta ◽  
1989 ◽  
Vol 179 (3) ◽  
pp. 367-375 ◽  
Author(s):  
Karen Dalkin ◽  
Dianna J. Bowles
Keyword(s):  
Gene Expression ◽  
Tomato Plants ◽  
Elicitor Treatment

scholarly journals Biochar Administration to San Marzano Tomato Plants Cultivated Under Low-Input Farming Increases Growth, Fruit Yield, and Affects Gene Expression

2020 ◽  
Vol 11 ◽  
Author(s):  
Maria Tartaglia ◽  
Simona Arena ◽  
Andrea Scaloni ◽  
Mauro Marra ◽  
Mariapina Rocco
Keyword(s):  
Gene Expression ◽  
Fruit Yield ◽  
Tomato Plants ◽  
Low Input

scholarly journals Signal transduction in the wound response of tomato plants

1998 ◽  
Vol 353 (1374) ◽  
pp. 1495-1510 ◽  
Author(s):  
Dianna Bowles
Keyword(s):  
Gene Expression ◽  
Signal Transduction ◽  
Proteinase Inhibitor ◽  
Marker Gene ◽  
Wound Response ◽  
Signalling Pathways ◽  
In Planta ◽  
Tomato Plants ◽  
Marker Gene Expression ◽  
Genes Encoding

The wound response of tomato plants has been extensively studied, and provides a useful model to understand signal transduction events leading from injury to marker gene expression. The principal markers that have been used in these studies are genes encoding proteinase inhibitor (pin) proteins. Activation of pin genes occurs in the wounded leaf and in distant unwounded leaves of the plant. This paper reviews current understanding of signalling pathways in the wounded leaf, and in the systemically responding unwounded leaves. First, the nature of known elicitors and their potential roles in planta are discussed, in particular, oligogalacturonides, jasmonates and the peptide signal, systemin. Inhibitors of wound–induced proteinase inhibitor (pin) expression are also reviewed, with particular reference to phenolics, sulphydryl reagents and fusicoccin. In each section, results obtained from the bioassay are considered within the wider context of data from mutants and from transgenic plants with altered levels of putative signalling components. Following this introduction, current models for pin gene regulation are described and discussed, together with a summary for the involvement of phosphorylation–dephosphorylation in wound signalling. Finally, a new model for wound–induced pin gene expression is presented, arising from recent data from the author‘apos; laboratory.

scholarly journals Role of Jasmonic Acid Pathway in Tomato Plant-Pseudomonas syringae Interaction

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 136 ◽  
Author(s):  
Loredana Scalschi ◽  
Eugenio Llorens ◽  
Pilar García-Agustín ◽  
Begonya Vicedo
Keyword(s):  
Gene Expression ◽  
Salicylic Acid ◽  
Jasmonic Acid ◽  
Pseudomonas Syringae ◽  
Tomato Plant ◽  
Wild Type ◽  
Tomato Plants ◽  
Bacterial Pathogenicity ◽  
Acid Pathway

The jasmonic acid pathway has been considered as the backbone of the response against necrotrophic pathogens. However, a hemi-biotrophic pathogen, such as Pseudomonas syringae, has taken advantage of the crosstalk between the different plant hormones in order to manipulate the responses for its own interest. Despite that, the way in which Pseudomonas syringae releases coronatine to activate jasmonic acid-derived responses and block the activation of salicylic acid-mediated responses is widely known. However, the implication of the jasmonic intermediates in the plant-Pseudomonas interaction is not studied yet. In this work, we analyzed the response of both, plant and bacteria using SiOPR3 tomato plants. Interestingly, SiOPR3 plants are more resistant to infection with Pseudomonas. The gene expression of bacteria showed that, in SiOPR3 plants, the activation of pathogenicity is repressed in comparison to wild type plants, suggesting that the jasmonic acid pathway might play a role in the pathogenicity of the bacteria. Moreover, treatments with JA restore the susceptibility as well as activate the expression of bacterial pathogenicity genes. The observed results suggest that a complete jasmonic acid pathway is necessary for the susceptibility of tomato plants to Pseudomonas syringae.

scholarly journals Induction of p-Coumaroyldopamine and Feruloyldopamine, Two Novel Metabolites, in Tomato by the Bacterial Pathogen Pseudomonas syringae

2007 ◽  
Vol 20 (11) ◽  
pp. 1439-1448 ◽  
Author(s):  
Laura Zacarés ◽  
María Pilar López-Gresa ◽  
Joaquín Fayos ◽  
Jaime Primo ◽  
José María Bellés ◽  
...  
Keyword(s):  
Gene Expression ◽  
Bacterial Infection ◽  
Pseudomonas Syringae ◽  
Antioxidant Activities ◽  
Bacterial Pathogen ◽  
Ethylene Biosynthesis ◽  
Hydroxycinnamic Acid ◽  
Tomato Plants ◽  
Hydroxycinnamic Acid Amides ◽  
First Time

Inoculation of tomato plants (Solanum lycopersicum cv. Rutgers) with Pseudomonas syringae pv. tomato led to the production of a hypersensitive-like response in this pathovar of tomato. Accumulation of hydroxycinnamic acid amides (HCAA) of tyramine (p-coumaroyltyramine and feruloyltyramine) and dopamine (p-coumaroyldopamine and feruloyldopamine) was detected after bacterial infection. Two of them, p-coumaroyldopamine and feruloyldopamine, are described for the first time. The accumulation of HCAA was preceded by an increment of hydroxycinnamoyl-CoA:tyramine N-hydroxycinnamoyl transferase (THT) gene expression. HCAA also accumulated in transgenic NahG tomato plants overexpressing a bacterial salicylic hydroxylase. However, treatment of plants with the ethylene biosynthesis inhibitor, aminoethoxyvinilglycine, led to a reduction in the accumulation of THT transcripts and HCAA. Together, the results suggest that pathogen-induced induction of ethylene is essential for HCAA synthesis, whereas salicylic acid is not required for this response. In addition, notable antibacterial and antioxidant activities were found for the new HCAA, thus indicating that they could play a role in the defense of tomato plants against bacterial infection.

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