ArticlePlant physiology1998
Accumulation of salicylic acid and 4-hydroxybenzoic acid in phloem fluids of cucumber during systemic acquired resistance is preceded by a transient increase in phenylalanine ammonia-lyase activity in petioles and stems.
Article in Plant physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed, 153 citations in OpenAlex.
- Bio-fertilizers ameliorate drought tolerance and physio-biochemical attributes of Moringa oleifera plants under different irrigation scheduling.BMC plant biology · 2026Article
- Excess nitric oxide alters cellular pH to restrict salicylic acid movement and systemic immunity.Science advances · 2026Article
- Chemotaxis to plant defense compounds in phytopathogens.PLoS pathogens · 2026Article
- Non-invasive imaging of defence responses in plants.Nature communications · 2026Article
- The phytopathogenmLife · 2024Article
- 4-Hydroxybenzoic Acid-Based Hydrazide-Hydrazones as Potent Growth Inhibition Agents of Laccase-Producing Phytopathogenic Fungi That Are Useful in the Protection of Oilseed Crops.Molecules (Basel, Switzerland) · 2024Article
- Root microbiome diversity and structure of the Sonoran desert buffelgrass (Pennisetum ciliare L.).PloS one · 2023Article
- A bacterial chemoreceptor that mediates chemotaxis to two different plant hormones.Environmental microbiology · 2022Article
- Phased small RNA-mediated systemic signaling in plants.Science advances · 2022Article
- Accumulation of Salicylic Acid and Related Metabolites inPlants (Basel, Switzerland) · 2022Article
- Differences in Gene Expression of Pear Selections Showing Leaf Curling or Leaf Reddening Symptoms Due to Pear Decline Phytoplasma.Plants (Basel, Switzerland) · 2022Article
- Impact of the female and hermaphrodite forms of Opuntia robusta on the plant defence hypothesis.Scientific reports · 2021Article
- Inhibitory Activity ofThe plant pathology journal · 2020Article
- Inducible biosynthesis and immune function of the systemic acquired resistance inducer N-hydroxypipecolic acid in monocotyledonous and dicotyledonous plants.Journal of experimental botany · 2020Article
- Absence of Polyphenol Oxidase inPlants (Basel, Switzerland) · 2020Article
- Involvement of a PadR regulator PrhP on virulence of Ralstonia solanacearum by controlling detoxification of phenolic acids and type III secretion system.Molecular plant pathology · 2019Article
- Seasonal Changes in the Metabolic Profiles and Biological Activity in Leaves ofPlants (Basel, Switzerland) · 2019Article
- Protocol: an improved method to quantify activation of systemic acquired resistance (SAR).Plant methods · 2019Article
- Huanglongbing Control: Perhaps the End of the Beginning.Microbial ecology · 2018Review
- Detection of Potential Chloroplastic Substrates for Polyphenol Oxidase Suggests a Role in Undamaged Leaves.Frontiers in plant science · 2017Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cucumber (Cucumis sativa) leaves infiltrated with Pseudomonas syringae pv. syringae cells produced a mobile signal for systemic acquired resistance between 3 and 6 h after inoculation. The production of a mobile signal by inoculated leaves was followed by a transient increase in phenylalanine ammonia-lyase (PAL) activity in the petioles of inoculated leaves and in stems above inoculated leaves; with peaks in activity at 9 and 12 h, respectively, after inoculation. In contrast, PAL activity in inoculated leaves continued to rise slowly for at least 18 h. No increases in PAL activity were detected in healthy leaves of inoculated plants. Two benzoic acid derivatives, salicylic acid (SA) and 4-hydroxybenzoic acid (4HBA), began to accumulate in phloem fluids at about the time PAL activity began to increase, reaching maximum concentrations 15 h after inoculation. The accumulation of SA and 4HBA in phloem fluids was unaffected by the removal of all leaves 6 h after inoculation, and seedlings excised from roots prior to inoculation still accumulated high levels of SA and 4HBA. These results suggest that SA and 4HBA are synthesized de novo in stems and petioles in response to a mobile signal from the inoculated leaf.
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