ArticlePlant physiology2009
Characterization of new maize genes putatively involved in cytokinin metabolism and their expression during osmotic stress in relation to cytokinin levels.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.
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Who cites it
70 citing papers in PubMed, 1 synthesis or guideline pooled it, 166 citations in OpenAlex.
- Role of cytokinins in seed development in pulses and oilseed crops: Current status and future perspective.Frontiers in genetics · 2022Pooled it
- Identification of a cytokinin-responsive core promoter and interacting transcription factors of MtCKX1 in Medicago truncatula.BMC plant biology · 2026Article
- Overexpression of housekeeping geneHorticulture research · 2025Article
- Genome-wide identification and analysis of SmRR gene family in eggplant (Solanum melongena L.) and their response to abiotic stress and auxin.BMC genomics · 2025Article
- Genome-wide investigation of cytokinin oxidase/dehydrogenase (CKX) family genes in Brassica juncea with an emphasis on yield-influencing CKX.Scientific reports · 2025Article
- Identification of a Specific Role of Dihydrozeatin in the Regulation of the Cell Differentiation Activity inPlants (Basel, Switzerland) · 2025Article
- Transcriptome and Metabolome Analyses Reveal a Complex Stigma Microenvironment for Pollen Tube Growth in Tobacco.International journal of molecular sciences · 2024Article
- Epigenetics and plant hormone dynamics: a functional and methodological perspective.Journal of experimental botany · 2024Review
- Genomic insights into CKX genes: key players in cotton fibre development and abiotic stress responses.PeerJ · 2024Article
- Cytokinin Translocation to, and Biosynthesis and Metabolism within, Cereal and Legume Seeds: Looking Back to Inform the Future.Metabolites · 2023Review
- GhCKX14 responding to drought stress by modulating antioxi-dative enzyme activity in Gossypium hirsutum compared to CKX family genes.BMC plant biology · 2023Article
- Multi-Omics Revealed Peanut Root Metabolism Regulated by Exogenous Calcium under Salt Stress.Plants (Basel, Switzerland) · 2023Article
- The trans-zeatin-type side-chain modification of cytokinins controls rice growth.Plant physiology · 2023Article
- Genome-wide identification of the soybean cytokinin oxidase/dehydrogenase gene family and its diverse roles in response to multiple abiotic stress.Frontiers in plant science · 2023Article
- Auxin-Cytokinin Cross Talk in Somatic Embryogenesis ofPlants (Basel, Switzerland) · 2022Article
- The LONELY GUY gene family: from mosses to wheat, the key to the formation of active cytokinins in plants.Plant biotechnology journal · 2022Review
- Article
- Overexpression ofFrontiers in plant science · 2022Article
- Impairment of root auxin-cytokinins homeostasis induces collapse of incompatible melon grafts during fruit ripening.Horticulture research · 2022Article
- Plant Growth Regulators INCYDE and TD-K Underperform in Cereal Field Trials.Plants (Basel, Switzerland) · 2021Article
10 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant hormones, cytokinins (CKs), have been for a long time considered to be involved in plant responses to stress. However, their exact roles in processes linked to stress signalization and acclimatization to adverse environmental conditions are unknown. In this study, expression profiles of the entire gene families of CK biosynthetic and degradation genes in maize (Zea mays) during development and stress responses are described. Transcript abundance of particular genes is discussed in relation to the levels of different CK metabolites. Salt and osmotic stresses induce expression of some CK biosynthetic genes in seedlings of maize, leading to a moderate increase of active forms of CKs lasting several days during acclimatization to stress. A direct effect of CKs to mediate activation of stress responses does not seem to be possible due to the slow changes in metabolite levels. However, expression of genes involved in cytokinin signal transduction is uniformly down-regulated within 0.5 h of stress induction by an unknown mechanism. cis-Zeatin and its derivatives were found to be the most abundant CKs in young maize seedlings. We demonstrate that levels of this zeatin isomer are significantly enhanced during early stress response and that it originates independently from de novo biosynthesis in stressed tissues, possibly by elevated specific RNA degradation. By enhancing their CK levels, plants could perhaps undergo a reduction of growth rates maintained by abscisic acid accumulation in stressed tissues. A second role for cytokinin receptors in sensing turgor response is hypothesized besides their documented function in CK signaling.
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