ArticleBMC plant biology2024
PEG treatment is unsuitable to study root related traits as it alters root anatomy in barley (Hordeum vulgare L.).
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- 2,4-Epibrassinolide Enhances Drought Tolerance inPlants (Basel, Switzerland) · 2025Article
- Head and Neck 3D Bioprinting-A Review on Recent Advancements in Soft Tissue 3D Bioprinting and Medical Applications.Journal of functional biomaterials · 2025Review
- Article
- Spermine driven water deficit tolerance in early growth phases of sweet corn genotypes under hydroponic cultivation.Scientific reports · 2025Article
- Genotype-dependent resilience mediated by melatonin in sweet corn.BMC plant biology · 2025Article
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe frequency and severity of abiotic stress events, especially drought, are increasing due to climate change. The plant root is the most important organ for water uptake and the first to be affected by water limitation. It is therefore becoming increasingly important to include root traits in studies on drought stress tolerance. However, phenotyping under field conditions remains a challenging task. In this study, plants were grown in a hydroponic system with polyethylene glycol as an osmotic stressor and in sand pots to examine the root system of eleven spring barley genotypes. The root anatomy of two genotypes with different response to drought was investigated microscopically.
resultsRoot diameter increased significantly (p < 0.05) under polyethylene glycol treatment by 54% but decreased significantly (p < 0.05) by 12% under drought stress in sand pots. Polyethylene glycol treatment increased root tip diameter (51%) and reduced diameter of the elongation zone (14%) compared to the control. Under drought stress, shoot mass of plants grown in sand pots showed a higher correlation (r = 0.30) with the shoot mass under field condition than polyethylene glycol treated plants (r = -0.22).
conclusionThese results indicate that barley roots take up polyethylene glycol by the root tip and polyethylene glycol prevents further water uptake. Polyethylene glycol-triggered osmotic stress is therefore unsuitable for investigating root morphology traits in barley. Root architecture of roots grown in sand pots is more comparable to roots grown under field conditions.
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