ArticlePlant physiology2000
High-affinity potassium transport in barley roots. Ammonium-sensitive and -insensitive pathways.
Article in Plant physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 120 citations in OpenAlex.
- Soil to Cytoplasm: The Mycorrhizal Phosphorus Express and Its Regulatory Steps.Journal of fungi (Basel, Switzerland) · 2026Review
- Plant-microbe interactions in the rhizosphere for smarter and more sustainable crop fertilization: the case of PGPR-based biofertilizers.Frontiers in microbiology · 2024Review
- Reducing potassium deficiency by using sodium fertilisation.Stress biology · 2022Review
- Genome-wide characterization and expression analysis of HAK K3 Biotech · 2021Article
- Ecosystem services for intensification of agriculture, with emphasis on increased nitrogen ecological use efficiency.Ecosphere (Washington, D.C) · 2020Article
- Coordinated Transport of Nitrate, Potassium, and Sodium.Frontiers in plant science · 2020Review
- Regulation of KFrontiers in plant science · 2019Review
- Characterization of rice KT/HAK/KUP potassium transporters and KPlant biotechnology (Tokyo, Japan) · 2018Article
- Molecular Cloning and Functional Analysis of a NaFrontiers in plant science · 2016Article
- Comparison between Arabidopsis and Rice for Main Pathways of K(+) and Na(+) Uptake by Roots.Frontiers in plant science · 2016Review
- Comparative analysis of potassium deficiency-responsive transcriptomes in low potassium susceptible and tolerant wheat (Triticum aestivum L.).Scientific reports · 2015Article
- Plant Survival in a Changing Environment: The Role of Nitric Oxide in Plant Responses to Abiotic Stress.Frontiers in plant science · 2015Review
- Ecological significance and complexity of N-source preference in plants.Annals of botany · 2013Article
- Capacity and plasticity of potassium channels and high-affinity transporters in roots of barley and Arabidopsis.Plant physiology · 2013Article
- A pharmacological analysis of high-affinity sodium transport in barley (Hordeum vulgare L.): a 24Na+/42K+ study.Journal of experimental botany · 2012Article
- Xanthomonas oryzae pv oryzae triggers immediate transcriptomic modulations in rice.BMC genomics · 2012Article
- Sucrose regulates plant responses to deficiencies in multiple nutrients.Plant signaling & behavior · 2011Article
- Article
- Potassium and sodium transport in non-animal cells: the Trk/Ktr/HKT transporter family.Cellular and molecular life sciences : CMLS · 2010Review
- Competition between uptake of ammonium and potassium in barley and Arabidopsis roots: molecular mechanisms and physiological consequences.Journal of experimental botany · 2010Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In an attempt to understand the process mediating K(+) transport into roots, we examined the contribution of the NH(4)(+)-sensitive and NH(4)(+)-insensitive components of Rb(+) transport to the uptake of Rb(+) in barley (Hordeum vulgare L.) plants grown in different ionic environments. We found that at low external Rb(+) concentrations, an NH(4)(+)-sensitive component dominates Rb(+) uptake in plants grown in the absence of NH(4)(+), while Rb(+) uptake preferentially occurs through an NH(4)(+)-insensitive pathway in plants grown at high external NH(4)(+) concentrations. A comparison of the Rb(+)-uptake properties observed in roots with those found in heterologous studies with yeast cells indicated that the recently cloned HvHAK1 K(+) transporter may provide a major route for the NH(4)(+)-sensitive component. HvHAK1 failed to complement the growth of a yeast strain defective in NH(4)(+) transport, suggesting that it could not act as an NH(4)(+) transporter. Heterologous studies also showed that the HKT1 K(+)/Na(+)-cotransporter may act as a pathway for high-affinity Rb(+) transport sensitive to NH(4)(+). However, we found no evidence of an enhancement of Rb(+) uptake into roots due to Na(+) addition. The possible identity of the systems contributing to the NH(4)(+)-insensitive component in barley plants is discussed.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.