Role of Benzoic Acid and Lettucenin A in the Defense Response of Lettuce against Soil-Borne Pathogens

Windisch, Saskia; Walter, Anja; Moradtalab, Narges; Walker, Frank; Höglinger, Birgit; El‐Hasan, Abbas; Ludewig, Uwe; Neumann, Günter; Grosch, Rita

doi:10.3390/plants10112336

Cited by 14 publications

(4 citation statements)

References 44 publications

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“…BA has been documented to influence several physiological processes, including anthocyanin production, chlorophyll biosynthesis, ion uptake, root elongation, and enzyme activity ( Maffei et al , 1999 ). Additionally, Windisch et al (2021) showed that lettuce roots secrete benzoic acid as a defensive metabolite against fungal pathogens. Taking all of the above data into account, an explanation for the accumulation of BA in our samples may be that this compound has a defensive role.…”

Section: Resultsmentioning

confidence: 99%

Beauveria bassiana rewires molecular mechanisms related to growth and defense in tomato

Proietti

Falconieri

Bertini

et al. 2023

Journal of Experimental Botany

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Plant roots can exploit beneficial associations with soil inhabiting microbes, promoting growth and expanding the immune capacity of the host plant. In this work, we aimed to increase information on changes occurring in tomato interacting with the beneficial fungus Beauveria bassiana. Tomato leaf proteome revealed perturbed molecular pathways during the establishment of the plant-fungus relationship. In the early stages of colonization (5-7 days), proteins related to defense responses to fungus were down-regulated and proteins related to calcium transport were up-regulated. At later time points (12-19 days after colonization), up-regulation of molecular pathways linked to protein/amino acids turn-over and to biosynthesis of energy compounds suggests beneficial interaction enhancing plant growth and development. At the later stage, the profile of leaf hormones and related compounds was also investigated highlighting up-regulation of those related to plant growth and defense. Finally, B. bassiana colonization was found to improve plant resistance against Botrytis cinerea, impacting plant oxidative damage. Overall, our findings further expand current knowledge on the possible mechanisms underlying the beneficial role of B. bassiana on tomato plants.

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Section: Resultsmentioning

confidence: 99%

Beauveria bassiana rewires molecular mechanisms related to growth and defense in tomato

Proietti

Falconieri

Bertini

et al. 2023

Journal of Experimental Botany

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“…The main classes of such compounds are represented by phenylpropanoids, flavonoids and phenolic polymers, in particular, lignin [ 7 , 9 , 37 ]. Because of their chemical properties, they readily interact with ROS, thereby protecting cells from their negative effects [ 38 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

Response of Transgenic Potato Plants Expressing Heterologous Genes of ∆9- or ∆12-Acyl-lipid Desaturases to Phytophthora infestans Infection

Tsypurskaya

Николаева

Lapshin

et al. 2022

Plants

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Late blight is one of the most economically important diseases affecting potato and causing a significant loss in yield. The development of transgenic potato plants with enhanced resistance to infection by Phytophthora infestans may represent a possible approach to solving this issue. A comparative study of the leaf response in control potato plants (S.tuberosum L. cultivar Skoroplodnyi), control transgenic plants expressing the reporter gene of thermostable lichenase (transgenic licBM3 line) and transgenic plants expressing cyanobacterial hybrid genes ∆9-acyl-lipid desaturase (transgenic desC lines) and ∆12-acyl-lipid desaturase (transgenic desA lines) to infection with P. infestans has been performed. The expression of desaturase genes in potato plants enhanced their tolerance to potato late blight agents as compared with the control. The lipid peroxidation level raised in the leaves of the control and transgenic desA plants on third day after inoculation with P. infestans zoospores and remained the same in the transgenic desC plants. The number of total phenolic compounds was increased as early as on the second day after infection in all studied variants and continued to remain the same, except for transgenic desC plants. Accumulation of flavonoids, the main components of the potato leaf phenolic complex, raised on the second day in all studied variants, remained unchanged on the third day in the control plants and decreased in most transgenic plants expressing desaturase genes. The results obtained in our study demonstrate that the expression of genes of Δ9- and Δ12-acyl-lipid desaturases in potato plants enhanced their resistance to P. infestans as compared with the control non-transgenic plants due to concomitant accumulation of phenolic compounds, including flavonoids, in the leaves. All these changes were more pronounced in transgenic desC plants, which indicates that the Δ9-acyllipid desaturase gene appears to be a potential inducer of the production of biological antioxidants in plant cells.

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“…On the other hand, hydroxybenzoic acids, derived from benzoic acid, lead to the synthesis of several other phenolic compounds, including plant hormones, and co-factors [ 78 ], mainly polar, and therefore not detected by the GC-MS. The synthesis of benzoic acid can also be induced by pathogens [ 8 , 79 ].…”

Section: Resultsmentioning

confidence: 99%

Metabolomic Profile of Salicornia perennis Plant’s Organs under Diverse In Situ Stress: The Ria de Aveiro Salt Marshes Case

et al. 2023

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Salicornia perennis is a halophyte belonging to the botanical subfamily Salicornioideae that forms extensive perennial salt marsh patches. This subfamily has excellent potential, still unexplored, as a source of food, medicine, and phytoremediation. This study aimed to evaluate the lipophilic composition of the Salicornia perennis different organs inhabiting salt marshes of Ria de Aveiro under different stress regimes. For this purpose, the lipophilic content was extracted with hexane and subsequent GC-MS analysis of the extracts for each plant organ, which was collected in three different salt marshes of the Ria de Aveiro. High sugar content was detected in the stems, whereas in fruiting articles, the higher content was in fatty acids. Shorter-chain organic acids were concentrated in the stems and vegetative articles; waxes were detected in greater quantity in photosynthetic organs. More or less stressful environments induce changes in the ratio and composition of molecules, such as acclimatization and oxidative stress reduction strategies; for example, fatty acid content was higher in plants subjected to a higher stress regime. These data contribute to understand the metabolic pathways of the species under study, suggesting new research approaches to its potential as food, medicine, and phytoremediator.

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Role of Benzoic Acid and Lettucenin A in the Defense Response of Lettuce against Soil-Borne Pathogens

Cited by 14 publications

References 44 publications

Beauveria bassiana rewires molecular mechanisms related to growth and defense in tomato

Beauveria bassiana rewires molecular mechanisms related to growth and defense in tomato

Response of Transgenic Potato Plants Expressing Heterologous Genes of ∆9- or ∆12-Acyl-lipid Desaturases to Phytophthora infestans Infection

Metabolomic Profile of Salicornia perennis Plant’s Organs under Diverse In Situ Stress: The Ria de Aveiro Salt Marshes Case

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