ArticlePlant physiology2009
Salicylic acid transport in Ricinus communis involves a pH-dependent carrier system in addition to diffusion.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 62 citations in OpenAlex.
- Excess nitric oxide alters cellular pH to restrict salicylic acid movement and systemic immunity.Science advances · 2026Article
- Genome-wide identification and expression analysis of the PnNPR-PnTGA gene family reveal its potential role in response to biotic stresses in Panax notoginseng.BMC plant biology · 2026Article
- Salicylic acid: a key natural foundation for next-generation plant defense stimulators.Pest management science · 2026Review
- Salicylic acid: new pathways arising?Frontiers in plant science · 2025Review
- Extracellular vesicles of Norway spruce contain precursors and enzymes for lignin formation and salicylic acid.Plant physiology · 2024Article
- Article
- Amino acid permease RcAAP1 increases the uptake and phloem translocation of an L-valine-phenazine-1-carboxylic acid conjugate.Frontiers in plant science · 2023Article
- Vectorizing Pro-Insecticide: Influence of Linker Length on Insecticidal Activity and Phloem Mobility of New Tralopyril Derivatives.Molecules (Basel, Switzerland) · 2021Article
- Synthesis, bioactivities and phloem uptake of dipeptide-chlorantraniliprole derivatives.BMC chemistry · 2020Article
- The plant cuticle regulates apoplastic transport of salicylic acid during systemic acquired resistance.Science advances · 2020Article
- Intra and Extracellular Journey of the Phytohormone Salicylic Acid.Frontiers in plant science · 2019Review
- Phytohormones enhanced drought tolerance in plants: a coping strategy.Environmental science and pollution research international · 2018Review
- Vectorization of agrochemicals: amino acid carriers are more efficient than sugar carriers to translocate phenylpyrrole conjugates in the Ricinus system.Environmental science and pollution research international · 2018Article
- Synthesis of Novel Amino Acid-Fipronil Conjugates and Study on Their Phloem Loading Mechanism.Molecules (Basel, Switzerland) · 2018Article
- Use of D-glucose-fenpiclonil conjugate as a potent and specific inhibitor of sucrose carriers.Journal of experimental botany · 2017Article
- Influence of Pyranose and Spacer Arm Structures on Phloem Mobility and Insecticidal Activity of New Tralopyril Derivatives.Molecules (Basel, Switzerland) · 2017Article
- Modifications of the chemical structure of phenolics differentially affect physiological activities in pulvinar cells of Mimosa pudica L. II. Influence of various molecular properties in relation to membrane transport.Environmental science and pollution research international · 2017Article
- Inhibitors of plant hormone transport.Protoplasma · 2016Review
- Crosstalk between intracellular and extracellular salicylic acid signaling events leading to long-distance spread of signals.Plant cell reports · 2013Review
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite its important functions in plant physiology and defense, the membrane transport mechanism of salicylic acid (SA) is poorly documented due to the general assumption that SA is taken up by plant cells via the ion trap mechanism. Using Ricinus communis seedlings and modeling tools (ACD LogD and Vega ZZ softwares), we show that phloem accumulation of SA and hydroxylated analogs is completely uncorrelated with the physicochemical parameters suitable for diffusion (number of hydrogen bond donors, polar surface area, and, especially, LogD values at apoplastic pHs and Delta LogD between apoplast and phloem sap pH values). These and other data (such as accumulation in phloem sap of the poorly permeant dissociated form of monohalogen derivatives from apoplast and inhibition of SA transport by the thiol reagent p-chloromercuribenzenesulfonic acid [pCMBS]) lead to the following conclusions. As in intestinal cells, SA transport in Ricinus involves a pH-dependent carrier system sensitive to pCMBS; this carrier can translocate monohalogen analogs in the anionic form; the efficiency of phloem transport of hydroxylated benzoic acid derivatives is tightly dependent on the position of the hydroxyl group on the aromatic ring (SA corresponds to the optimal position) but moderately affected by halogen addition in position 5, which is known to increase plant defense. Furthermore, combining time-course experiments and pCMBS used as a tool, we give information about the localization of the SA carrier. SA uptake by epidermal cells (i.e. the step preceding the symplastic transport to veins) insensitive to pCMBS occurs via the ion-trap mechanism, whereas apoplastic vein loading involves a carrier-mediated mechanism (which is targeted by pCMBS) in addition to diffusion.
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