ArticleJournal of experimental botany2011
Effect of mechanical stress on Zea root apex. I. Mechanical stress leads to the switch from closed to open meristem organization.
Article in Journal of experimental botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 29 citations in OpenAlex.
- Physiological roles of Arabidopsis MCA1 and MCA2 based on their dynamic expression patterns.Journal of plant research · 2024Review
- Review
- The Pellicle-Another Strategy of the Root Apex Protection against Mechanical Stress?International journal of molecular sciences · 2021Article
- Root anatomical traits contribute to deeper rooting of maize under compacted field conditions.Journal of experimental botany · 2020Article
- A Toolkit for High Resolution Imaging of Cell Division and Phytohormone Signaling in Legume Roots and Root Nodules.Frontiers in plant science · 2019Article
- Morphological responses of plant roots to mechanical stress.Annals of botany · 2018Review
- A method to generate the surface cell layer of the 3D virtual shoot apex from apical initials.Plant methods · 2017Article
- Growth and cellular patterns in the petal epidermis of Antirrhinum majus: empirical studies.Annals of botany · 2014Article
- Form matters: morphological aspects of lateral root development.Annals of botany · 2013Review
- Article
- A force of nature: molecular mechanisms of mechanoperception in plants.Journal of experimental botany · 2013Review
- Lateral root development in the maize (Zea mays) lateral rootless1 mutant.Annals of botany · 2013Article
- Quantifying the impact of soil compaction on root system architecture in tomato (Solanum lycopersicum) by X-ray micro-computed tomography.Annals of botany · 2012Article
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4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The effect of mechanical stress on the root apical meristem (RAM) organization of Zea mays was investigated. In the experiment performed, root apices were grown through a narrowing of either circular (variant I) or elliptical (variant II) shape. This caused a mechanical impedance distributed circumferentially or from the opposite sides in variant I and II, respectively. The maximal force exerted by the growing root in response to the impedance reached the value of 0.15 N for variant I and 0.08 N for variant II. Significant morphological and anatomical changes were observed. The changes in morphology depended on the variant and concerned diminishing and/or deformation of the cross-section of the root apex, and buckling and swelling of the root. Anatomical changes, similar in both variants, concerned transformation of the meristem from closed to open, an increase in the number of the cell layers at the pole of the root proper, and atypical oblique divisions of the root cap cells. After leaving the narrowing, a return to both typical cellular organization and morphology of the apex was observed. The results are discussed in terms of three aspects: the morphological response, the RAM reorganization, and mechanical factors. Assuming that the orientation of division walls is affected by directional cues of a tensor nature, the changes mentioned may indicate that a pattern of such cues is modified when the root apex passes through the narrowing, but its primary mode is finally restored.
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