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Published May 25, 2023 | Version v1
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Raw data for: Phosphate deprivation-induced changes in tomato are mediated by an interaction between brassinosteroid signaling and zinc

Creators

  • 1. California Institute of Technology
  • 2. University of California, Davis
  • 3. Technion – Israel Institute of Technology
  • 4. Palacký University, Olomouc

Description

  • Inorganic phosphate (Pi) is a necessary macronutrient for basic biological processes. Plants modulate their root system architecture (RSA) and cellular processes to adapt to Pi deprivation albeit with a growth penalty. Excess application of Pi fertilizer, on the other hand, leads to eutrophication and has a negative environmental impact.
  • We compared RSA, root hair elongation, acid phosphatase activity, metal ion accumulation, and brassinosteroid hormone levels of Solanum lycopersicum (tomato) and Solanum pennellii, which is a wild relative of tomato, under Pi sufficiency and deficiency conditions to understand the molecular mechanism of Pi deprivation response in tomato.
  • We showed that Solanum pennellii is partially insensitive to phosphate deprivation. Furthermore, it mounts a constitutive response under phosphate sufficiency. We demonstrate that activated brassinosteroid signaling through a tomato BZR1 ortholog gives rise to the same constitutive phosphate deficiency response, which is dependent on zinc over-accumulation.
  • Collectively, these results reveal an additional strategy by which plants can adapt to phosphate starvation. 

Notes

Funding provided by: BARD
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001269
Award Number:

Funding provided by: Howard Hughes Medical Institute
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000011
Award Number:

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number:

Funding provided by: Resnick Sustainability Institute for Science, Energy and Sustainability, California Institute of Technology
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100007287
Award Number:

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