Early Senescence in Older Leaves of Low Nitrate-Grown Atxdh1 Uncovers a Role for Purine Catabolism in N Supply

A Soltabayeva, S Srivastava, A Kurmanbayeva… - Plant …, 2018 - academic.oup.com
The nitrogen (N)-rich ureides allantoin and allantoate, which are products of purine
catabolism, play a role in N delivery in Leguminosae. Here, we examined their role as an N …

A critical role for ureides in dark and senescence‐induced purine remobilization is unmasked in the Atxdh1 Arabidopsis mutant

G Brychkova, Z Alikulov, R Fluhr, M Sagi - The Plant Journal, 2008 - Wiley Online Library
The remobilization of metabolites during stress and senescence plays an important role in
optimal plant adaptation to the environment. The plant molybdenum co‐factor (MoCo) and …

[HTML][HTML] Disruption of ureide degradation affects plant growth and development during and after transition from vegetative to reproductive stages

H Takagi, S Watanabe, S Tanaka, T Matsuura, IC Mori… - BMC Plant …, 2018 - Springer
Background The ureides allantoin and allantoate are major metabolic intermediates of
purine catabolism with high nitrogen-to-carbon ratios. Ureides play a key role in nitrogen …

Formation of xanthine and the use of purine metabolites as a nitrogen source in Arabidopsis plants

G Brychkova, R Fluhr, M Sagi - Plant Signaling & Behavior, 2008 - Taylor & Francis
In our recent paper in Plant J 1, we described the remobilization of purine metabolites during
natural and dark induced senescence in wild type and Atxdh1 mutant lines impaired in …

A Role for Allantoate Amidohydrolase (AtAAH) in the Germination of Arabidopsis thaliana Seeds

F Yazdanpanah, LAJ Willems, H He… - Plant and Cell …, 2022 - academic.oup.com
Seed dormancy is a very complex trait controlled by interactions between genetic and
environmental factors. Nitrate is inversely correlated with seed dormancy in Arabidopsis …

Allantoin accumulation mediated by allantoinase downregulation and transport by Ureide Permease 5 confers salt stress tolerance to Arabidopsis plants

CI Lescano, C Martini, CA González… - Plant Molecular Biology, 2016 - Springer
Allantoin, a metabolite generated in the purine degradation pathway, was primarily
considered an intermediate for recycling of the abundant nitrogen assimilated in plant …

Update on ureide degradation in legumes

CD Todd, PA Tipton, DG Blevins… - Journal of …, 2006 - academic.oup.com
Warm season N2-fixing legumes move fixed N from the nodules to the aerial portions of the
plant primarily in the form of ureides, allantoin and allantoate, oxidation products of purines …

Supply of nitrogen can reverse senescence processes and affect expression of genes coding for plastidic glutamine synthetase and lysine‐ketoglutarate reductase …

J Schildhauer, K Wiedemuth, K Humbeck - Plant Biology, 2008 - Wiley Online Library
Nitrogen availability has a strong influence on developmental processes in plants. We show
that the time of nitrogen supply regulates the course of leaf senescence in flag leaves of …

The Arabidopsis onset of leaf death5 Mutation of Quinolinate Synthase Affects Nicotinamide Adenine Dinucleotide Biosynthesis and Causes Early Ageing

JHM Schippers, A Nunes-Nesi, R Apetrei, J Hille… - The Plant …, 2008 - academic.oup.com
Leaf senescence in Arabidopsis thaliana is a strict, genetically controlled nutrient recovery
program, which typically progresses in an age-dependent manner. Leaves of the …

Reversal of senescence by N resupply to N-starved Arabidopsis thaliana: transcriptomic and metabolomic consequences

S Balazadeh, J Schildhauer, WL Araújo… - Journal of …, 2014 - academic.oup.com
Leaf senescence is a developmentally controlled process, which is additionally modulated
by a number of adverse environmental conditions. Nitrogen shortage is a well-known trigger …