Evolutionary aspects of non-cell-autonomous regulation in vascular plants: structural background and models to study

A.I. Evkaikina, M.A. Romanova, O.V. Voitsekhovskaja

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Plasmodesmata (PD) serve for the exchange of information in form of miRNA, proteins, and mRNA between adjacent cells in the course of plant development. This fundamental role of PD is well established in angiosperms but has not yet been traced back to the evolutionary ancient plant taxa where functional studies lag behind studies of PD structure and ontogenetic origin. There is convincing evidence that the ability to form secondary (post-cytokinesis) PD, which can connect any adjacent cells, contrary to primary PD which form during cytokinesis and link only cells of the same lineage, appeared in the evolution of higher plants at least twice: in seed plants and in some representatives of the Lycopodiophyta. The (in)ability to form secondary PD is manifested in the symplasmic organization of the shoot apical meristem (SAM) which in most taxa of seedless vascular plants differs dramatically from that in seed plants. Lycopodiophyta appear to be suitable models to analyze the transport of developmental regulators
Original languageEnglish
Pages (from-to)1-10
JournalFrontiers in Plant Science
Volume5
DOIs
StatePublished - 2014

Keywords

  • плазмодесмы
  • неклеточноавтономные транскрипционные факторы
  • белки KNOX
  • апикальная меристема
  • плаунообразные

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