ArticleAmino acids2010
Analysis of alanine aminotransferase in various organs of soybean (Glycine max) and in dependence of different nitrogen fertilisers during hypoxic stress.
Article in Amino acids, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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31 citing papers in PubMed, 97 citations in OpenAlex.
- Modulation of nitrogen metabolising enzymes and the photosynthetic pigments in wheat upon exogenous application of marigold leachates.Scientific reports · 2025Article
- Overexpression of pxAlaAT3 in Populus × xiaohei alleviates root growth inhibition under ammonium nitrogen stress.Plant cell reports · 2025Article
- Role of alanine aminotransferase in crop resilience to climate change: a critical review.Physiology and molecular biology of plants : an international journal of functional plant biology · 2024Review
- Aspartate aminotransferase ofMicrobiology (Reading, England) · 2024Article
- Origin and Function of Amino Acids in Nectar and Nectaries ofPlants (Basel, Switzerland) · 2023Article
- Primary Metabolite Screening Shows Significant Differences between Embryogenic and Non-Embryogenic Callus of Tamarillo (Plants (Basel, Switzerland) · 2023Article
- Comparative Metabolomics Profiling Reveals Key Metabolites and Associated Pathways Regulating Tuber Dormancy in White Yam (Metabolites · 2023Article
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- Effects of Hypoxia Stress on Growth, Root Respiration, and Metabolism ofLife (Basel, Switzerland) · 2022Article
- Cereal Germination under Low Oxygen: Molecular Processes.Plants (Basel, Switzerland) · 2022Review
- Article
- Expression of a cucumber alanine aminotransferase2 gene improves nitrogen use efficiency in transgenic rice.Journal, genetic engineering & biotechnology · 2019Article
- Comparative Proteomics Analysis of the Seedling Root Response of Drought-sensitive and Drought-tolerant Maize Varieties to Drought Stress.International journal of molecular sciences · 2019Article
- The Synthesis and Role of β-Alanine in Plants.Frontiers in plant science · 2019Review
- Exploring Legume-Rhizobia Symbiotic Models for Waterlogging Tolerance.Frontiers in plant science · 2019Review
- Temperature-dependent metabolic adaptation of Triticum aestivum seedlings to anoxia.Scientific reports · 2018Article
- A Systems Biology Study in Tomato Fruit Reveals Correlations between the Ascorbate Pool and Genes Involved in Ribosome Biogenesis, Translation, and the Heat-Shock Response.Frontiers in plant science · 2018Article
- Article
- Identification and expression analyses of the alanine aminotransferase (AlaAT) gene family in poplar seedlings.Scientific reports · 2017Article
- Metabolomics for Plant Improvement: Status and Prospects.Frontiers in plant science · 2017Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alanine aminotransferase (AlaAT) catalyses the reversible conversion of pyruvate and glutamate into alanine and oxoglutarate. In soybean, two subclasses were identified, each represented by two highly similar members. To investigate the role of AlaAT during hypoxic stress in soybean, changes in transcript level of both subclasses were analysed together with the enzyme activity and alanine content of the tissue. Moreover, the dependency of AlaAT activity and gene expression was investigated in relation to the source of nitrogen supplied to the plants. Using semi-quantitative PCR, GmAlaAT genes were determined to be highest expressed in roots and nodules. Under normal growth conditions, enzyme activity of AlaAT was detected in all organs tested, with lowest activity in the roots. Upon waterlogging-induced hypoxia, AlaAT activity increased strongly. Concomitantly, alanine accumulated. During re-oxygenation, AlaAT activity remained high, but the transcript level and the alanine content decreased. Our results show a role for AlaAT in the catabolism of alanine during the initial period of re-oxygenation following hypoxia. GmAlaAT also responded to nitrogen availability in the solution during waterlogging. Ammonium as nitrogen source induced both gene expression and enzyme activity of AlaAT more than when nitrate was supplied in the nutrient solution. The work presented here indicates that AlaAT might not only be important during hypoxia, but also during the recovery phase after waterlogging, when oxygen is available to the tissue again.
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