TY - JOUR

T1 - Evolutionary aspects of non-cell-autonomous regulation in vascular plants: structural background and models to study

AU - Evkaikina, A.I.

AU - Romanova, M.A.

AU - Voitsekhovskaja, O.V.

PY - 2014

Y1 - 2014

N2 - 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

AB - 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

KW - плазмодесмы

KW - неклеточноавтономные транскрипционные факторы

KW - белки KNOX

KW - апикальная меристема

KW - плаунообразные

U2 - 10.3389/fpls.2014.00031

DO - 10.3389/fpls.2014.00031

M3 - Article

VL - 5

SP - 1

EP - 10

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

ER -