ArticlePlant reproduction2025
Mechanosensitive ion channel MSL8 is required for oscillatory growth and cell wall dynamics in Arabidopsis pollen tubes.
Article in Plant reproduction, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- A mechanosensitive ion channel is required for nematode predation in nematode-trapping fungi.mBio · 2026Article
- Microtubules in Arabidopsis pollen tubes are oriented away from the tube apex and are actin-independent at the cortex.bioRxiv : the preprint server for biology · 2026Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
The male gametophyte in flowering plants, pollen, both performs the critical role of fertilization and represents a unique and accessible system for interrogating plant cell mechanics. A key component in this robust mechanical system is MscS-Like 8 (MSL8), a mechanosensitive ion channel. We previously proposed that MSL8 serves as an "osmotic safety valve", regulating pressure in the germinating pollen tube by releasing anions in response to plasma membrane tension. However, we subsequently identified defects in the cell walls of msl8 mutant pollen that suggested a role independent of osmoregulation. Here, we show that pollen tubes lacking MSL8 channel function by genetic knockout or channel-blocking point mutation lose major growth pauses, have altered pectin esterification patterns, and are sensitive to pectin crosslinking. Together, these data suggest a mechanism whereby anion efflux through mechanosensitive channels regulates cell wall composition and growth dynamics.
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Registered trials
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