ArticleMolecular plant2016
Salicylic Acid Regulates Pollen Tip Growth through an NPR3/NPR4-Independent Pathway.
Article in Molecular plant, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 54 citations in OpenAlex.
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- Rosmarinic Acid Synthase 1 Phosphorylation by SmMAPK3 Is Required for Salicylic Acid-Induced Salvianolic Acid Accumulation in Salvia miltiorrhiza Hairy Roots.Plant biotechnology journal · 2026Article
- 'Bud to fruit'-hormonal interactions governing early fruit development.Journal of experimental botany · 2025Review
- Female gametophyte development, pollen‒pistil interactions and embryogenic patterns in chicory (Cichorium intybus): a self-incompatibility perspective.Plant cell reports · 2025Article
- Genome-wide identification and expression analysis of CBF/DREB1 gene family in Medicago sativa L. and functional verification of MsCBF9 affecting flowering time.BMC plant biology · 2025Article
- Salicylic acid: new pathways arising?Frontiers in plant science · 2025Review
- Chemical inhibition of Arabidopsis PIN-FORMED auxin transporters by the anti-inflammatory drug naproxen.Plant communications · 2023Article
- Article
- The SmNPR4-SmTGA5 module regulates SA-mediated phenolic acid biosynthesis inHorticulture research · 2023Article
- Sterols and Sphingolipids as New Players in Cell Wall Building and Apical Growth ofPlants (Basel, Switzerland) · 2022Article
- Arabidopsis Cys2/His2 Zinc Finger Transcription Factor ZAT18 Modulates the Plant Growth-Defense Tradeoff.International journal of molecular sciences · 2022Article
- The TGA Transcription Factors from Clade II Negatively Regulate the Salicylic Acid Accumulation in Arabidopsis.International journal of molecular sciences · 2022Article
- An Anecdote on Prospective Protein Targets for Developing Novel Plant Growth Regulators.Molecular biotechnology · 2022Review
- The role of salicylic acid in plant flower development.Forestry research · 2022Review
- Salicylic Acid andFrontiers in plant science · 2022Review
- Action of Salicylic Acid on Plant Growth.Frontiers in plant science · 2022Review
- Hormonome Dynamics During Microgametogenesis in DifferentFrontiers in plant science · 2021Article
- PbrPOE21 inhibits pear pollen tube growth in vitro by altering apical reactive oxygen species content.Planta · 2020Article
- Deciphering the Binding of Salicylic Acid toInternational journal of molecular sciences · 2020Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
Tip growth is a common strategy for the rapid elongation of cells to forage the environment and/or to target to long-distance destinations. In the model tip growth system of Arabidopsis pollen tubes, several small-molecule hormones regulate their elongation, but how these rapidly diffusing molecules control extremely localized growth remains mysterious. Here we show that the interconvertible salicylic acid (SA) and methylated SA (MeSA), well characterized for their roles in plant defense, oppositely regulate Arabidopsis pollen tip growth with SA being inhibitory and MeSA stimulatory. The effect of SA and MeSA was independent of known NPR3/NPR4 SA receptor-mediated signaling pathways. SA inhibited clathrin-mediated endocytosis in pollen tubes associated with an increased accumulation of less stretchable demethylated pectin in the apical wall, whereas MeSA did the opposite. Furthermore, SA and MeSA alter the apical activation of ROP1 GTPase, a key regulator of tip growth in pollen tubes, in an opposite manner. Interestingly, both MeSA methylesterase and SA methyltransferase, which catalyze the interconversion between SA and MeSA, are localized at the apical region of pollen tubes, indicating of the tip-localized production of SA and MeSA and consistent with their effects on the apical cellular activities. These findings suggest that local generation of a highly diffusible signal can regulate polarized cell growth, providing a novel mechanism of cell polarity control apart from the one involving protein and mRNA polarization.
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