ArticleJournal of experimental botany2008
Localization of sucrose synthase in developing seed and siliques of Arabidopsis thaliana reveals diverse roles for SUS during development.
Article in Journal of experimental botany, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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41 citing papers in PubMed, 112 citations in OpenAlex.
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- TaWUS-like-5D affects grain weight and filling by inhibiting the expression of sucrose and trehalose metabolism-related genes in wheat grain endosperm.Plant biotechnology journal · 2025Article
- Raffinose family oligosaccharide hydrolysis by alkaline α-galactosidase CsAGA2 controls seed development in cucumber.The Plant cell · 2025Article
- Sucrose synthase dynamics and its potential role in heat stress tolerance in cereals.Frontiers in plant science · 2025Review
- Sucrose synthase gene family in common bean during pod filling subjected to moisture restriction.Frontiers in plant science · 2024Article
- Divergent Retention of Sucrose Metabolism Genes after Whole Genome Triplication in the Tomato (Plants (Basel, Switzerland) · 2023Article
- The Responses of Sucrose Metabolism and Carbon Translocation in Tomato Seedlings under Different Light Spectra.International journal of molecular sciences · 2023Article
- Genome-Wide Identification and Expression Analysis of the Sucrose Synthase Gene Family in Sweet Potato and Its Two Diploid Relatives.International journal of molecular sciences · 2023Article
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- Sucrose synthases are not involved in starch synthesis in Arabidopsis leaves.Nature plants · 2022Article
- Review
- The nucellus: between cell elimination and sugar transport.Plant physiology · 2021Article
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- Brassica rapa orphan genes largely affect soluble sugar metabolism.Horticulture research · 2020Article
- Simultaneous changes in seed size, oil content and protein content driven by selection ofNational science review · 2020Article
- Metabolomics analysis reveals Embden Meyerhof Parnas pathway activation and flavonoids accumulation during dormancy transition in tree peony.BMC plant biology · 2020Article
- Arabidopsis sucrose synthase localization indicates a primary role in sucrose translocation in phloem.Journal of experimental botany · 2020Article
- Genome-wide characterization of the NUCLEAR FACTOR-Y (NF-Y) family in Citrus grandis identified CgNF-YB9 involved in the fructose and glucose accumulation.Genes & genomics · 2019Article
- Comparative Transcriptome Analysis of Developing Seeds and Silique Wall Reveals Dynamic Transcription Networks for Effective Oil Production inInternational journal of molecular sciences · 2019Article
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigated the roles of sucrose synthase (SUS) in developing seeds and siliques of Arabidopsis thaliana. Enzyme activity assays showed that SUS activity was highest in developing whole siliques and young rosette leaves compared with other tissues including mature leaves, stems, and flowers. Surprisingly, quantitative PCR analyses revealed little correlation between SUS activity and transcript expression, which indicated the importance of examining the role of SUS at the protein level. Therefore, immunolocalization was performed over a developmental time course to determine the previously unreported cellular localization of SUS in Arabidopsis seed and silique tissues. At 3 d and 10 d after flowering (daf), SUS protein localized to the silique wall, seed coat, funiculus, and endosperm. By 13 daf, SUS protein was detected in the embryo and aleurone layer, but was absent from the seed coat and funiculus. Starch grains were also present in the seed coat at 3 and 10 daf, but were absent at 13 daf. Co-localization of SUS protein and starch grains in the seed coat at 3 and 10 daf indicates that SUS may be involved in temporary starch deposition during the early stages of seed development, whilst in the later stages SUS metabolizes sucrose in the embryo and cotyledon. Within the silique wall, SUS localized specifically to the companion cells, indicating that SUS activity may be required to provide energy for phloem transport activities in the silique wall. The results highlight the diverse roles that SUS may play during the development of silique and seed in Arabidopsis.
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