Responses of Chrysanthemum Cells to Mechanical Stimulation Require Intact Microtubules and Plasma Membrane–Cell Wall Adhesion

Zhou, Jing; Wang, Bochu; Li, Yang; Wang, Yichuan; Zhu, Lei

doi:10.1007/s00344-006-0029-2

Cited by 29 publications

(17 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The protoplasts divided either tangentially or perpendicularly to lines of the compression stress, whereas in unstressed medium, no preferred orientation was observed. Cell divisions along the axis preferentially perpendicular to the PDS were observed also by Zhou et al (2007) Both examples indicate that plant cells are able to recognize directional cues related to the mechanical stress.…”

Section: Mechanical Aspectsmentioning

confidence: 89%

“…They result from GT but can also be recognized experimentally by analysis of the surface deformation, as crosses of maximal and minimal growth rates (Dumais and Kwiatkowska 2002), or on the basis of cell wall arrangement at the surface or in the section of the organ (Hejnowicz et al1988;Nakielski 1987Nakielski , 2000. How cells detect PDGs is not clear, although a detection of similar cues of tensor nature, resulting from the mechanical stress has been experimentally conWrmed (Lynch and Lintihlac 1997;Zhou et al 2007). The present model assumes that cells somehow "detect" PDGs and orient cell division walls with respect to them.…”

Section: Pdgs and Cell Wall Patternmentioning

confidence: 94%

See 1 more Smart Citation

The tensor-based model for growth and cell divisions of the root apex. I. The significance of principal directions

Nakielski

2008

Planta

View full text Add to dashboard Cite

Plant organs grow symplastically, i.e. in a continuous and coordinated way. Such growth is of a tensor nature, which is manifested in the property that at every point of the organ three mutually orthogonal principal growth directions (PDG) can be recognized. The PDGs are postulated to affect orientation of cell divisions. This paper shows for the first time the 2D simulation model for growth in which cells divide taking into account the PDGs. The model, conceptually based on the growth tensor (GT), is applied to the root apex of radish, having a quiescent centre (QC). It shows the simulation of how exemplary cell pattern of the real root apex develops in time. The results provide satisfactory description of the root growth. The computer-generated cell pattern is realistic and more or less steady indicating that PDGs are important for growth. Presumably cells detect PDGs and obey them in the course of cell divisions. Computer generated division walls, perpendicular to PDGs, form periclinal and anticlinal zigzags as regular as those observed in microscopic sections. Growth tensor defines a field of growth rates at the organ level. QC, fundamental in this field, determines the group of quiescent initial cells which is, in turn, surrounded by active functional initials, from which all tissues of the root apex originate. The present simulations have shown that stability of generated cell pattern depends on whether the group of the functional initials is permanent; if this is not the case, the cell wall pattern changes in accordance with PDGs.

show abstract

Section: Mechanical Aspectsmentioning

confidence: 89%

Section: Pdgs and Cell Wall Patternmentioning

confidence: 94%

The tensor-based model for growth and cell divisions of the root apex. I. The significance of principal directions

Nakielski

2008

Planta

View full text Add to dashboard Cite

show abstract

“…Wall-associated kinases have also been suggested as components of a signalling mechanism from cell wall to cytoplasm [39]. Developmental responses to external mechanical stress are well established [40], although the mechanisms are not as well understood in higher plants as in yeasts [41]. An intriguing example is the induction of the complete developmental process leading to a new leaf by local application of expansin protein to cause local cell wall loosening [42].…”

Section: Primary Cell Walls In Pathogenesismentioning

confidence: 98%

Plant cell walls: supramolecular assembly, signalling and stress

Jarvis

2009

Struct Chem

View full text Add to dashboard Cite

The structure of the primary cell wall in nongraminaceous plants is briefly reviewed and its role in providing mechanical strength to the plant and protecting it from microbial infection are described. A variety of signalling mechanisms involve oligosaccharides released by glycanase enzymes from microbial pathogens, and some of the mechanisms may be implicated in the regulation of metabolism in ripening fruits. There is some evidence that cell walls are able to sense damage or loss of integrity and that signals can accordingly be passed back to the cytoplasm. Primary cell walls must combine the mechanical and other functions with the capacity to grow in a controlled way. A modification of the 'Molecular Velcro' model developed originally to describe deformation of wood is used to predict load-deformation curves like those described by the Lockhart equation for the relationship between turgor stress and growth. Predicting a stress threshold for growth does not require the assumption of enzyme activity, although in fact enzyme activity is indeed required to permit growth at the rates normally observed.

show abstract

“…Because cells in the tunica start to divide periclinally often concomitantly with (or just before) the emergence of a new primordium (Cunninghame and Lyndon 1986;Reddy et al 2004), the local change in the stress may precede and therefore be responsible for correct lateral organ establishment. When cell divisions are prevented, the organ initiation occurs by cell expansion alone, which is under strict mechanical control too (Wymer et al 1996;Fisher and Cyr 2000;Zhou et al 2007).…”

Section: Organogenetic and Proliferative Events At The Shootmentioning

confidence: 99%

Morphomechanics of Plants

Lipchinsky

2014

Morphomechanics of Development

View full text Add to dashboard Cite

Plants operate with tensional and compressive stresses that are extreme by animal standards. These stresses vary sharply on sub-and supracellular scales, but are orchestrated at the organismal level and evolve in a well-defined way during morphogenetic events. Plant morphogenesis is accomplished by localized and anisotropic yielding of cell walls that accommodate turgor-driven extension without losing mechanical integrity. Plant cell walls are connected cohesively into a stressallocating network enabling mechanical forces to be efficiently transmitted and serve as a long-distance messenger that plays an important integrative and regulatory role. Mechanical forces control the dynamics of both cortical microtubules and phytohormone auxin transporters, the two key players in guiding plant morphogenesis. The onset of organogenetic events in shoots and roots is associated with stereotypical changes in the pattern of tissue stresses. Initiation of leaves, lateral roots, and root hairs can be rationalized within the framework of the concept of stress hyperrestoration.

show abstract

Responses of Chrysanthemum Cells to Mechanical Stimulation Require Intact Microtubules and Plasma Membrane–Cell Wall Adhesion

Cited by 29 publications

References 43 publications

The tensor-based model for growth and cell divisions of the root apex. I. The significance of principal directions

The tensor-based model for growth and cell divisions of the root apex. I. The significance of principal directions

Plant cell walls: supramolecular assembly, signalling and stress

Morphomechanics of Plants

Contact Info

Product

Resources

About