PEG treatment is unsuitable to study root related traits as it alters root anatomy in barley (Hordeum vulgare L.)

Autor: Veronic Töpfer, Michael Melzer, Rod J. Snowdon, Andreas Stahl, Andrea Matros, Gwendolin Wehner
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: BMC Plant Biology, Vol 24, Iss 1, Pp 1-12 (2024)
Druh dokumentu: article
ISSN: 1471-2229
DOI: 10.1186/s12870-024-05529-z
Popis: Abstract Background The 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. Results Root diameter increased significantly (p
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