ArticleJournal of experimental botany2014
Accumulation of cytokinins in roots and their export to the shoots of durum wheat plants treated with the protonophore carbonyl cyanide m-chlorophenylhydrazone (CCCP).
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 108 citations in OpenAlex.
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- Soil health improvements under cover crops are associated with enhanced soil content of cytokinins.Plant biology (Stuttgart, Germany) · 2025Article
- Abscisic Acid Can Play a Dual Role in thePlants (Basel, Switzerland) · 2025Article
- Spatially distributed cytokinins: Metabolism, signaling, and transport.Plant communications · 2024Review
- The Role of Cytokinins and Abscisic Acid in the Growth, Development and Virulence of the Pathogenic FungusBiomolecules · 2024Article
- Additive Effect of the Composition of Endophytic BacteriaLife (Basel, Switzerland) · 2023Article
- Screening microbial inoculants and their interventions for cross-kingdom management of wilt disease of solanaceous crops- a step toward sustainable agriculture.Frontiers in microbiology · 2023Review
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- Integrating the Roles for Cytokinin and Auxin in De Novo Shoot Organogenesis: From Hormone Uptake to Signaling Outputs.International journal of molecular sciences · 2021Review
- Differential Subcellular Distribution of Cytokinins: How Does Membrane Transport Fit into the Big Picture?International journal of molecular sciences · 2021Review
- Article
- Ethylene-Cytokinin Interaction Determines Early Defense Response of Wheat againstBiomolecules · 2021Article
- Effects of Phosphate Shortage on Root Growth and Hormone Content of Barley Depend on Capacity of the Roots to Accumulate ABA.Plants (Basel, Switzerland) · 2020Article
- Rhizobacteria Inoculation Effects on Phytohormone Status of Potato Microclones Cultivated In Vitro under Osmotic Stress.Biomolecules · 2020Article
- Phytohormone Mediation of Interactions Between Plants and Non-Symbiotic Growth Promoting Bacteria Under Edaphic Stresses.Frontiers in plant science · 2019Review
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Corrections and comments
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cytokinin flow from roots to shoots can serve as a long-distance signal important for root-to-shoot communication. In the past, changes in cytokinin flow from roots to shoots have been mainly attributed to changes in the rate of synthesis or breakdown in the roots. The present research tested the possibility that active uptake of cytokinin by root cells may also influence its export to shoots. To this end, we collapsed the proton gradient across root membranes using the protonophore carbonyl cyanide m-chlorophenylhydrazone (CCCP) to inhibit secondary active uptake of exogenous and endogenous cytokinins. We report the impact of CCCP on cytokinin concentrations and delivery in xylem sap and on accumulation in shoots of 7-day-old wheat plants in the presence and absence of exogenous cytokinin applied as zeatin. Zeatin treatment increased the total accumulation of cytokinin in roots and shoots but the effect was smaller for the shoots. Immunohistochemical localization of cytokinins using zeatin-specific antibodies showed an increase in immunostaining of the cells adjacent to xylem in the roots of zeatin-treated plants. Inhibition of secondary active cytokinin uptake by CCCP application decreased cytokinin accumulation in root cells but increased both flow from the roots and accumulation in the shoots. The possible importance of secondary active uptake of cytokinins by root cells for the control of their export to the shoot is discussed.
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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.