Umeå University's logo

umu.sePublications
System disruptions
There are recurring service disruptions on some of the search portals due to high traffic. We are working to resolve the issue, you may temporarily encounter an error message.
EnglishSvenskaNorsk
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A drought stress-induced MYB transcription factor regulates pavement cell shape in leaves of European aspen (Populus tremula)
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden; Department of Grassland Science, College of Horticulture, Shenyang Agricultural University, Shenyang, China.
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-5249-604X
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden.
Show others and affiliations
2026 (English)In: New Phytologist, ISSN 0028-646X, E-ISSN 1469-8137, Vol. 251, no 5, p. 2688-2705Article in journal (Refereed) Published
Abstract [en]
  • Leaf pavement cells of many plant species develop jigsaw puzzle-like shapes in which neighboring cells interdigitate, providing an ideal model for the study of cell shape regulation. Such shapes are likely to reduce tissue-wide mechanical stress, which is influenced by environmental conditions, such as drought stress.
  • We analyzed pavement cell shape complexity in a natural population of European aspen (Populus tremula) genotypes and used a genome-wide association study (GWAS) to identify a candidate gene in cell shape regulation, Potra2n8c18226, encoding the transcription factor MYB305a. We subsequently validated a role for MYB305a in regulating aspen leaf pavement cell shape.
  • We then demonstrated that drought stress strongly induces MYB305a promoter expression in these cells and provided evidence that MYB305a plays a role in regulating pavement cell shape in response to drought. Finally, we observed correlations of pavement cell shape complexity with water-use efficiency and average precipitation at the original sampling sites, in the natural aspen population.
  • Taken together, our results suggest climatic variables affect shape complexity of pavement cells in aspen leaf and provide a foundation for future mechanistic studies on this process, by implicating the involvement of the transcription factor MY305a.
Place, publisher, year, edition, pages
John Wiley & Sons, 2026. Vol. 251, no 5, p. 2688-2705
Keywords [en]
cell shape, drought, European aspen (Populus tremula), GWAS, leaf pavement cells
National Category
Botany
Identifiers
URN: urn:nbn:se:umu:diva-256747DOI: 10.1111/nph.71399ISI: 001810955300001PubMedID: 42402693Scopus ID: 2-s2.0-105043728469OAI: oai:DiVA.org:umu-256747DiVA, id: diva2:2087110
Funder
Swedish Research Council, VR-2020-03420The Kempe Foundations, JCK-1732The Kempe Foundations, JCK-1912Knut and Alice Wallenberg FoundationVinnovaEU, European Research Council, ERC-2024-SyG STARMORPH 101166880Available from: 2026-07-17 Created: 2026-07-17 Last updated: 2026-09-09Bibliographically approved

Open Access in DiVA

fulltext(5930 kB)2 downloads
File information
File name FULLTEXT02.pdfFile size 5930 kBChecksum SHA-512
00d91b206c909a9e8182327053eec9cc4668b0ce75744b29c202788aa174faac23c8cfb3ed8f5e1bcab4aaf85f73862c55ffd6d9f3313a064eccb463d258a9da
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Authority records

Robinson, Kathryn M.Street, Nathaniel

Search in DiVA

By author/editor
Robinson, Kathryn M.Street, Nathaniel
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
In the same journal
New Phytologist
Botany

Search outside of DiVA

GoogleGoogle Scholar
Total: 26 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 275 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.49.0
|
WCAG
|
Log in
|
Manuals
|
Contact the Library