Conserved autophagy and diverse cell wall composition: unifying features of vascular tissues in evolutionarily distinct plants.

ABSTRACT:

Background and aims

The formation of multifunctional vascular tissues represents a significant advancement in plant evolution. Differentiation of conductive cells is specific, involving two main pathways, namely protoplast clearance and cell wall modification. In xylogenesis, autophagy is a crucial process for complete protoplast elimination in tracheary elements, whose cell wall also undergoes strong changes. Knowledge pertaining to living sieve elements, which lose most of their protoplast during phloemogenesis, remains limited. We hypothesized that autophagy plays a crucial role, not only in complete cytoplasmic clearance in xylem but also in partial degradation in phloem. Cell wall elaborations of mature sieve elements are not so extensive. These analyses performed on evolution

SUBMITTER: Michalak KM 

PROVIDER: S-EPMC11037490 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature