Plants and Light Manipulation

The Integrated Mineral System in Okra Leaves

Maria Pierantoni, Ron Tenne, Vlad Brumfeld, Vladimir Kiss, Dan Oron, Lia Addadi, Steve Weiner

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Calcium oxalate and silica minerals are common components of a variety of plant leaves. These minerals are found at different locations within the leaf, and there is little conclusive evidence about the functions they perform. Here tools are used from the fields of biology, optics, and imaging to investigate the distributions of calcium oxalate, silica minerals, and chloroplasts in okra leaves, in relation to their functions. A correlative approach is developed to simultaneously visualize calcium oxalates, silica minerals, chloroplasts, and leaf soft tissue in 3D without affecting the minerals or the organic components. This method shows that in okra leaves silica and calcium oxalates, together with chloroplasts, form a complex system with a highly regulated relative distribution. This distribution points to a significant role of oxalate and silica minerals to synergistically optimize the light regime in the leaf. The authors also show directly that the light scattered by the calcium oxalate crystals is utilized for photosynthesis, and that the ultraviolet component of light passing through silica bodies, is absorbed. This study thus demonstrates that calcium oxalates increase the illumination level into the underlying tissue by scattering the incoming light, and silica reduces the amount of UV radiation entering the tissue.

Original languageEnglish
JournalAdvanced Science
DOIs
Publication statusAccepted/In press - 2017

Fingerprint

Abelmoschus
oxalates
Calcium Oxalate
Silicon Dioxide
leaves
Minerals
manipulators
Silica
calcium
minerals
Calcium
silicon dioxide
Light
chloroplasts
Chloroplasts
Tissue
Plant Leaves
photosynthesis
Oxalates
Photosynthesis

Keywords

  • Calcium oxalate
  • MicroCT-confocal correlative microscopy
  • PDMPO
  • Photosynthesis
  • Silica

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Medicine (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)

Cite this

Pierantoni, M., Tenne, R., Brumfeld, V., Kiss, V., Oron, D., Addadi, L., & Weiner, S. (Accepted/In press). Plants and Light Manipulation: The Integrated Mineral System in Okra Leaves. Advanced Science. https://doi.org/10.1002/advs.201600416

Plants and Light Manipulation : The Integrated Mineral System in Okra Leaves. / Pierantoni, Maria; Tenne, Ron; Brumfeld, Vlad; Kiss, Vladimir; Oron, Dan; Addadi, Lia; Weiner, Steve.

In: Advanced Science, 2017.

Research output: Contribution to journalArticle

Pierantoni, Maria ; Tenne, Ron ; Brumfeld, Vlad ; Kiss, Vladimir ; Oron, Dan ; Addadi, Lia ; Weiner, Steve. / Plants and Light Manipulation : The Integrated Mineral System in Okra Leaves. In: Advanced Science. 2017.
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