Are cell wall traits a component of the succulent syndrome?
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fpls-13-1043429.pdf
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1.78 MB
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Resource type
Journal article
Date published
November 25, 2022
Abstract
Succulence is an adaptation to low water availability characterised by the presence of water-storage tissues that alleviate water stress under low water availability. The succulent syndrome has evolved convergently in over 80 plant families and is associated with anatomical, physiological and biochemical traits. Despite the alleged importance of cell wall traits in drought responses, their significance in the succulent syndrome has long been overlooked. Here, by analyzing published pressure–volume curves, we show that elastic adjustment, whereby plants change cell wall elasticity, is uniquely beneficial to succulents for avoiding turgor loss. In addition, we used comprehensive microarray polymer profiling (CoMPP) to assess the biochemical composition of cell walls in leaves. Across phylogenetically diverse species, we uncover several differences in cell wall biochemistry between succulent and non-succulent leaves, pointing to the existence of a ‘succulent glycome’. We also highlight the glycomic diversity among succulent plants, with some glycomic features being restricted to certain succulent lineages. In conclusion, we suggest that cell wall biomechanics and biochemistry should be considered among the characteristic traits that make up the succulent syndrome.
Funder
| Funder name | Awards |
Newcastle University, United Kingdom | R. B. Cook Scholarship |
Horizon 2020, European Union | Marie Skłodowska-Curie grant agreement No 801199 |
Slovenská Akadémia Vied, Slovakia | Project number IM-2021-23 |
Journal title
Frontiers in Plant Science
Volume
13
Article number
1043429
Publisher
Frontiers Media SA
Place of publication
Lausanne, Switzerland
eISSN
1664-462X
Date accepted
October 31, 2022
Official URL
Rights statement
In Copyright
Additional information
IF = 6.6627 (2022-2023)