ArticlePlant biotechnology journal2025
Modulating the activity of the APC/C regulator SISAMBA improves the sugar and antioxidant content of tomato fruits.
Article in Plant biotechnology journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Reconfiguring biofortification strategies to transform food systems and address micronutrient deficiency of the 21st century.Journal of integrative plant biology · 2026Review
- Transcriptomic Analysis of Early Fruit Development in Micro-Tom Tomato Reveals Conserved and Cultivar-Specific Mechanisms.Plants (Basel, Switzerland) · 2026Article
Corrections and comments
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Authors and funding
20 authors.
Funding
Abstract
The Anaphase-Promoting Complex/Cyclosome (APC/C) is an E3 ubiquitin ligase that plays a crucial role in ubiquitin-dependent proteolysis of key cell cycle regulators, which is completed by the 26S proteasome. Previously, SAMBA, a plant-specific regulator of the APC/C, was identified in Arabidopsis as a critical factor controlling organ size through the regulation of cell proliferation. Here, by assessing its role in the crop tomato (Solanum lycopersicum), we confirm that SAMBA is a conserved APC/C regulator in plants and shows additional roles, including the modulation of fruit shape and changes in sugar metabolism. Two slsamba genome-edited lines were produced and characterized, and showed delayed growth, reduced plant size, and altered fruit morphology, which were linked to changes in cell division and expansion. Notably, untargeted metabolomics revealed altered flavonoid profiles, along with elevated Brix values in the fruits, indicating a sweeter taste. Accordingly, transcriptomics uncovered a change in temporal gene expression gradients during early fruit development, correlating with the alterations in sugar metabolism and revealing changes in cell wall biosynthesis genes. This study provides the first evidence of SAMBA's role in regulating fruit development, metabolic content, and ultimately, quality. These important findings offer potential applications for improving the nutritional quality and overall performance of tomatoes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.