Characterization of gelling agents in callus inducing media: Physical properties and their effect on callus growth

Noy Sadot Muzika, Tamir Kamai, Leor Eshed Williams, Maya Kleiman

Research output: Contribution to journalArticlepeer-review

Abstract

In plant tissue culture, callus formation serves as a crucial mechanism for regenerating entire plants, enabling the differentiation of diverse tissues. Researchers have extensively studied the influence of media composition, particularly plant growth regulators, on callus behavior. However, the impact of the physical properties of the media, a well-established factor in mammalian cell studies, has received limited attention in the context of plant tissue culture. Previous research has highlighted the significance of gelling agents in affecting callus growth and differentiation, with Agar, Phytagel, and Gelrite being the most used options. Despite their widespread use, a comprehensive comparison of their physical properties and their subsequent effects on callus behavior remains lacking. Our study provides insights into optimizing plant tissue culture media by analyzing the physical properties of gelling agents and their impact on callus induction and differentiation. We compared the phenotypes of calli grown on media composed of these different gelling agents and correlated them to the physical properties of these media. We tested water retention, examined pore size using cryo-SEM, measured the media mechanical properties, and studied diffusion characteristics. We found that the mechanical properties of the media are the only quality correlated with callus phenotype.

Original languageAmerican English
Article numbere14312
JournalPhysiologia Plantarum
Volume176
Issue number2
DOIs
StatePublished - 1 Mar 2024

All Science Journal Classification (ASJC) codes

  • Genetics
  • Physiology
  • Plant Science
  • Cell Biology

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