ArticlePlant physiology2010
Increased phloem transport of S-methylmethionine positively affects sulfur and nitrogen metabolism and seed development in pea plants.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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35 citing papers in PubMed, 93 citations in OpenAlex.
- Evolutionary and functional relationships between plant and microbial CThe New phytologist · 2025Review
- The activity of soil microbial taxa in the rhizosphere predicts the success of root colonization.mSystems · 2025Article
- UMAMIT44 is a key player in glutamate export from Arabidopsis chloroplasts.The Plant cell · 2024Article
- The serine-glycine-one-carbon metabolic network orchestrates changes in nitrogen and sulfur metabolism and shapes plant development.The Plant cell · 2024Article
- Foliar Application of Sulfur-Containing Compounds-Pros and Cons.Plants (Basel, Switzerland) · 2023Review
- Production of S-methyl-methionine using engineered Saccharomyces cerevisiae sake K6.Journal of industrial microbiology & biotechnology · 2023Article
- Genetic and molecular understanding for the development of methionine-rich maize: a holistic approach.Frontiers in plant science · 2023Review
- Tissue specific expression of UMAMIT amino acid transporters in wheat.Scientific reports · 2022Article
- Review
- Micrografting Provides Evidence for Systemic Regulation of Sulfur Metabolism between Shoot and Root.Plants (Basel, Switzerland) · 2021Article
- Fate of nitrogen in agriculture and environment: agronomic, eco-physiological and molecular approaches to improve nitrogen use efficiency.Biological research · 2020Review
- Role of ureides in source-to-sink transport of photoassimilates in non-fixing soybean.Journal of experimental botany · 2020Article
- Synchronization of developmental, molecular and metabolic aspects of source-sink interactions.Nature plants · 2020Review
- Targeting Nitrogen Metabolism and Transport Processes to Improve Plant Nitrogen Use Efficiency.Frontiers in plant science · 2020Review
- Rice OsLHT1 Functions in Leaf-to-Panicle Nitrogen Allocation for Grain Yield and Quality.Frontiers in plant science · 2020Article
- Cysteine and Methionine Biosynthetic Enzymes Have Distinct Effects on Seed Nutritional Quality and on Molecular Phenotypes Associated With Accumulation of a Methionine-Rich Seed Storage Protein in Rice.Frontiers in plant science · 2020Article
- The CaThe Plant cell · 2019Article
- Function of pea amino acid permease AAP6 in nodule nitrogen metabolism and export, and plant nutrition.Journal of experimental botany · 2018Article
- The long and winding road: transport pathways for amino acids in Arabidopsis seeds.Plant reproduction · 2018Review
- Leaf Amino Acid Supply Affects Photosynthetic and Plant Nitrogen Use Efficiency under Nitrogen Stress.Plant physiology · 2018Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Seeds of grain legumes are important energy and food sources for humans and animals. However, the yield and quality of legume seeds are limited by the amount of sulfur (S) partitioned to the seeds. The amino acid S-methylmethionine (SMM), a methionine derivative, has been proposed to be an important long-distance transport form of reduced S, and we analyzed whether SMM phloem loading and source-sink translocation are important for the metabolism and growth of pea (Pisum sativum) plants. Transgenic plants were produced in which the expression of a yeast SMM transporter, S-Methylmethionine Permease1 (MMP1, YLL061W), was targeted to the phloem and seeds. Phloem exudate analysis showed that concentrations of SMM are elevated in MMP1 plants, suggesting increased phloem loading. Furthermore, expression studies of genes involved in S transport and metabolism in source organs, as well as xylem sap analyses, support that S uptake and assimilation are positively affected in MMP1 roots. Concomitantly, nitrogen (N) assimilation in root and leaf and xylem amino acid profiles were changed, resulting in increased phloem loading of amino acids. When investigating the effects of increased S and N phloem transport on seed metabolism, we found that protein levels were improved in MMP1 seeds. In addition, changes in SMM phloem loading affected plant growth and seed number, leading to an overall increase in seed S, N, and protein content in MMP1 plants. Together, these results suggest that phloem loading and source-sink partitioning of SMM are important for plant S and N metabolism and transport as well as seed set.
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