ArticlePlant physiology2002
Leaf urea metabolism in potato. Urease activity profile and patterns of recovery and distribution of (15)N after foliar urea application in wild-type and urease-antisense transgenics.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 145 citations in OpenAlex.
- The influence of combined carbon and nitrogen application on the growth and metabolism of Ilex rotunda.BMC plant biology · 2026Article
- Urea and potassium nitrate synergy in sesame cultivation: boosting growth, yield, and antioxidant resilience through tailored nitrogen fertilization.Scientific reports · 2025Article
- Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.).Scientific reports · 2022Article
- Article
- Effect of urea fertilization on growth of broad bean (Vicia faba L.) under various nickel (Ni) levels with or without acetic acid addition, usingEnvironmental geochemistry and health · 2021Article
- Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea.Frontiers in plant science · 2021Article
- Exogenous application of urea and a urease inhibitor improves drought stress tolerance in maize (Zea mays L.).Journal of plant research · 2017Article
- Effect of soybean ureases on seed germination and plant development.Genetics and molecular biology · 2017Article
- Short-Term Treatment with the Urease Inhibitor N-(n-Butyl) Thiophosphoric Triamide (NBPT) Alters Urea Assimilation and Modulates Transcriptional Profiles of Genes Involved in Primary and Secondary Metabolism in Maize Seedlings.Frontiers in plant science · 2016Article
- Both Free Indole-3-Acetic Acid and Photosynthetic Performance are Important Players in the Response of Medicago truncatula to Urea and Ammonium Nutrition Under Axenic Conditions.Frontiers in plant science · 2016Article
- The Urease Inhibitor NBPT Negatively Affects DUR3-mediated Uptake and Assimilation of Urea in Maize Roots.Frontiers in plant science · 2015Article
- The ureide-degrading reactions of purine ring catabolism employ three amidohydrolases and one aminohydrolase in Arabidopsis, soybean, and rice.Plant physiology · 2013Article
- Ubiquitous urease affects soybean susceptibility to fungi.Plant molecular biology · 2012Article
- Biochemical and structural studies on native and recombinant Glycine max UreG: a detailed characterization of a plant urease accessory protein.Plant molecular biology · 2012Article
- Identification and characterization of proteins involved in rice urea and arginine catabolism.Plant physiology · 2010Article
- Molecular mechanisms of urea transport in plants.The Journal of membrane biology · 2006Review
- Identification of three urease accessory proteins that are required for urease activation in Arabidopsis.Plant physiology · 2005Article
- Interallelic complementation at the ubiquitous urease coding locus of soybean.Plant physiology · 2003Article
- AtDUR3 encodes a new type of high-affinity urea/H+ symporter in Arabidopsis.The Plant cell · 2003Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The influence of urease activity on N distribution and losses after foliar urea application was investigated using wild-type and transgenic potato (Solanum tuberosum cv Désirée) plants in which urease activity was down-regulated. A good correlation between urease activity and (15)N urea metabolism (NH(3) accumulation) was found. The general accumulation of ammonium in leaves treated with urea indicated that urease activity is not rate limiting, at least initially, for the assimilation of urea N by the plant. It is surprising that there was no effect of urease activity on either N losses or (15)N distribution in the plants after foliar urea application. Experiments with wild-type plants in the field using foliar-applied (15)N urea demonstrated an initial rapid export of N from urea-treated leaves to the tubers within 48 h, followed by a more gradual redistribution during the subsequent days. Only 10% to 18% of urea N applied was lost (presumably because of NH(3) volatilization) in contrast to far greater losses reported in several other studies. The pattern of urease activity in the canopy was investigated during plant development. The activity per unit protein increased up to 10-fold with leaf and plant age, suggesting a correlation with increased N recycling in senescing tissues. Whereas several reports have claimed that plant urease is inducible by urea, no evidence for urease induction could be found in potato.
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