ArticlePlant physiology2016
In Situ Visualization of the Dynamics in Xylem Embolism Formation and Removal in the Absence of Root Pressure: A Study on Excised Grapevine Stems.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 95 citations in OpenAlex.
- Xylem sap residue in cut-open conduits can affect gas discharge in pneumatic experiments.Tree physiology · 2026Article
- Hydraulic architecture, height-related changes in photosynthesis and seasonal positive pressure declines in bamboo: implications for top dieback.Annals of botany · 2025Article
- Lianas in tropical dry seasonal forests have a high hydraulic efficiency but not always a higher embolism resistance than lianas in rainforests.Annals of botany · 2024Article
- Starch depletion in the xylem and phloem ray parenchyma of grapevine stems under drought.AoB PLANTS · 2023Article
- How Tree Decline Varies the Anatomical Features in Quercus brantiiPlants (Basel, Switzerland) · 2023Article
- Interactive effect between tree ageing and trunk-boring pest reduces hydraulics and carbon metabolism inAoB PLANTS · 2022Article
- Lack of hydraulic recovery as a cause of post-drought foliage reduction and canopy decline in European beech.The New phytologist · 2022Article
- Foliar water uptake does not contribute to embolism repair in beech (Fagus sylvatica L.).Annals of botany · 2022Article
- Xylem network connectivity and embolism spread in grapevine(Vitis vinifera L.).Plant physiology · 2021Article
- Drought-Induced Root Pressure inFrontiers in plant science · 2021Article
- Breeding for Climate Change Resilience: A Case Study of Loblolly Pine (Frontiers in plant science · 2021Review
- Sap Flow Disruption in Grapevine Is the Early Signal Predicting the Structural, Functional, and Genetic Responses to Esca Disease.Frontiers in plant science · 2021Article
- The Possible Role of Non-Structural Carbohydrates in the Regulation of Tree Hydraulics.International journal of molecular sciences · 2019Review
- Young grapevines exhibit interspecific differences in hydraulic response to freeze stress but not in recovery.Planta · 2019Article
- Spatiotemporal Coupling of Vessel Cavitation and Discharge of Stored Xylem Water in a Tree Sapling.Plant physiology · 2019Article
- Insights from in vivo micro-CT analysis: testing the hydraulic vulnerability segmentation in Acer pseudoplatanus and Fagus sylvatica seedlings.The New phytologist · 2019Article
- Storage Compartments for Capillary Water Rarely Refill in an Intact Woody Plant.Plant physiology · 2017Article
- Post-drought hydraulic recovery is accompanied by non-structural carbohydrate depletion in the stem wood of Norway spruce saplings.Scientific reports · 2017Article
- Stomatal Closure, Basal Leaf Embolism, and Shedding Protect the Hydraulic Integrity of Grape Stems.Plant physiology · 2017Article
- Outside-Xylem Vulnerability, Not Xylem Embolism, Controls Leaf Hydraulic Decline during Dehydration.Plant physiology · 2017Article
Corrections and comments
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Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gas embolisms formed during drought can disrupt long-distance water transport through plant xylem vessels, but some species have the ability to remove these blockages. Despite evidence suggesting that embolism removal is linked to the presence of vessel-associated parenchyma, the underlying mechanism remains controversial and is thought to involve positive pressure generated by roots. Here, we used in situ x-ray microtomography on excised grapevine stems to determine if embolism removal is possible without root pressure, and if the embolism formation/removal affects vessel functional status after sample excision. Our data show that embolism removal in excised stems was driven by water droplet growth and was qualitatively identical to refilling in intact plants. When stem segments were rehydrated with H2O after excision, vessel refilling occurred rapidly (<1 h). The refilling process was substantially slower when polyethylene glycol was added to the H2O source, thereby providing new support for an osmotically driven refilling mechanism. In contrast, segments not supplied with H2O showed no refilling and increased embolism formation. Dynamic changes in liquid/wall contact angles indicated that the processes of embolism removal (i.e. vessel refilling) by water influx and embolism formation by water efflux were directly linked to the activity of vessel-associated living tissue. Overall, our results emphasize that root pressure is not required as a driving force for vessel refilling, and care should be taken when performing hydraulics measurements on excised plant organs containing living vessel-associated tissue, because the vessel behavior may not be static.
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