Identifying the pathways for foliar water uptake in beech (Fagus sylvatica L.) : a major role for trichomes
- Author
- Jeroen Schreel (UGent) , Olivier Leroux (UGent) , Willem Goossens (UGent) , Craig Brodersen, Adriana Rubinstein and Kathy Steppe (UGent)
- Organization
- Abstract
- Foliar water uptake (FWU), the direct uptake of water into leaves, is a global phenomenon, having been observed in an increasing number of plant species. Despite the growing recognition of its functional relevance, our understanding of how FWU occurs and which foliar surface structures are implicated, is limited. In the present study, fluorescent and ionic tracers, as well as microcomputed tomography, were used to assess potential pathways for water entry in leaves of beech, a widely distributed tree species from European temperate regions. Although none of the tracers entered the leaf through the stomatal pores, small amounts of silver precipitation were observed in some epidermal cells, indicating moderate cuticular uptake. Trichomes, however, were shown to absorb and redistribute considerable amounts of ionic and fluorescent tracers. Moreover, microcomputed tomography indicated that 72% of empty trichomes refilled during leaf surface wetting and microscopic investigations revealed that trichomes do not have a cuticle but are covered with a pectin-rich cell wall layer. Taken together, our findings demonstrate that foliar trichomes, which exhibit strong hygroscopic properties as a result of their structural and chemical design, constitute a major FWU pathway in beech.
- Keywords
- foliar absorption, pathways, trichomes, beech (Fagus sylvatica L, ), electron microscopy, fluorescent tracers, silver nanoparticles, synchrotron-based microcomputed tomography, plant cell walls, apoplastic and symplastic, UPTAKE CAPACITY, PLANT CUTICLES, GAS-EXCHANGE, FOG WATER, DROUGHT, ABSORPTION, SILVER, TREES, ECOPHYSIOLOGY
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8704387
- MLA
- Schreel, Jeroen, et al. “Identifying the Pathways for Foliar Water Uptake in Beech (Fagus Sylvatica L.) : A Major Role for Trichomes.” PLANT JOURNAL, vol. 103, no. 2, 2020, pp. 769–80, doi:10.1111/tpj.14770.
- APA
- Schreel, J., Leroux, O., Goossens, W., Brodersen, C., Rubinstein, A., & Steppe, K. (2020). Identifying the pathways for foliar water uptake in beech (Fagus sylvatica L.) : a major role for trichomes. PLANT JOURNAL, 103(2), 769–780. https://doi.org/10.1111/tpj.14770
- Chicago author-date
- Schreel, Jeroen, Olivier Leroux, Willem Goossens, Craig Brodersen, Adriana Rubinstein, and Kathy Steppe. 2020. “Identifying the Pathways for Foliar Water Uptake in Beech (Fagus Sylvatica L.) : A Major Role for Trichomes.” PLANT JOURNAL 103 (2): 769–80. https://doi.org/10.1111/tpj.14770.
- Chicago author-date (all authors)
- Schreel, Jeroen, Olivier Leroux, Willem Goossens, Craig Brodersen, Adriana Rubinstein, and Kathy Steppe. 2020. “Identifying the Pathways for Foliar Water Uptake in Beech (Fagus Sylvatica L.) : A Major Role for Trichomes.” PLANT JOURNAL 103 (2): 769–780. doi:10.1111/tpj.14770.
- Vancouver
- 1.Schreel J, Leroux O, Goossens W, Brodersen C, Rubinstein A, Steppe K. Identifying the pathways for foliar water uptake in beech (Fagus sylvatica L.) : a major role for trichomes. PLANT JOURNAL. 2020;103(2):769–80.
- IEEE
- [1]J. Schreel, O. Leroux, W. Goossens, C. Brodersen, A. Rubinstein, and K. Steppe, “Identifying the pathways for foliar water uptake in beech (Fagus sylvatica L.) : a major role for trichomes,” PLANT JOURNAL, vol. 103, no. 2, pp. 769–780, 2020.
@article{8704387,
abstract = {{Foliar water uptake (FWU), the direct uptake of water into leaves, is a global phenomenon, having been observed in an increasing number of plant species. Despite the growing recognition of its functional relevance, our understanding of how FWU occurs and which foliar surface structures are implicated, is limited. In the present study, fluorescent and ionic tracers, as well as microcomputed tomography, were used to assess potential pathways for water entry in leaves of beech, a widely distributed tree species from European temperate regions. Although none of the tracers entered the leaf through the stomatal pores, small amounts of silver precipitation were observed in some epidermal cells, indicating moderate cuticular uptake. Trichomes, however, were shown to absorb and redistribute considerable amounts of ionic and fluorescent tracers. Moreover, microcomputed tomography indicated that 72% of empty trichomes refilled during leaf surface wetting and microscopic investigations revealed that trichomes do not have a cuticle but are covered with a pectin-rich cell wall layer. Taken together, our findings demonstrate that foliar trichomes, which exhibit strong hygroscopic properties as a result of their structural and chemical design, constitute a major FWU pathway in beech.}},
author = {{Schreel, Jeroen and Leroux, Olivier and Goossens, Willem and Brodersen, Craig and Rubinstein, Adriana and Steppe, Kathy}},
issn = {{0960-7412}},
journal = {{PLANT JOURNAL}},
keywords = {{foliar absorption,pathways,trichomes,beech (Fagus sylvatica L,),electron microscopy,fluorescent tracers,silver nanoparticles,synchrotron-based microcomputed tomography,plant cell walls,apoplastic and symplastic,UPTAKE CAPACITY,PLANT CUTICLES,GAS-EXCHANGE,FOG WATER,DROUGHT,ABSORPTION,SILVER,TREES,ECOPHYSIOLOGY}},
language = {{eng}},
number = {{2}},
pages = {{769--780}},
title = {{Identifying the pathways for foliar water uptake in beech (Fagus sylvatica L.) : a major role for trichomes}},
url = {{http://doi.org/10.1111/tpj.14770}},
volume = {{103}},
year = {{2020}},
}
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