ArticleJournal of experimental botany2019
Symplasmic phloem unloading and radial post-phloem transport via vascular rays in tuberous roots of Manihot esculenta.
Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Dodder seedlings benefit from apoplastic nutrition by inducing SWEET15-mediated unloading of sucrose from the host's phloem.The New phytologist · 2026Article
- Understanding and modifying starch metabolism to limit yield losses in field-grown cassava.Plant physiology · 2026Article
- Variations in carbon flux allocation among cassava (Manihot esculenta) cultivars arise from balanced competition between starch accumulation and structural component development.Communications biology · 2026Article
- Integrated omics analysis on organic fertilizer-mediated regulation of starch synthesis in cassava.Frontiers in plant science · 2026Article
- High-resolution transcriptomics of stem and storage root vascular cambia highlight regulatory processes for xylem parenchyma differentiation in cassava.BMC genomics · 2025Article
- Engineering vascular potassium transport increases yield and drought resilience of cassava.Nature plants · 2025Article
- AraceaeDB: a functional genomics database of the Araceae family with a focus on konjac glucomannan biosynthesis inHorticulture research · 2025Article
- Review
- Advancements and strategies of genetic improvement in cassava (Horticulture research · 2025Article
- Article
- Symplasmic phloem loading and subcellular transport in storage roots are key factors for carbon allocation in cassava.Plant physiology · 2024Article
- RNA-Seq Reveals That Multiple Pathways Are Involved in Tuber Expansion in Tiger Nuts (International journal of molecular sciences · 2024Article
- Physiological, anatomical and quality indexes of root tuber formation and development in chayote (Sechium edule).BMC plant biology · 2023Article
- Transcriptome profiling reveals the genes involved in tuberous root expansion in Pueraria (Pueraria montana var. thomsonii).BMC plant biology · 2023Article
- Carbon allocation in cassava is affected by water deficit and potassium application - ARapid communications in mass spectrometry : RCM · 2023Article
- Integrated mRNA and Small RNA Sequencing Reveals a microRNA Regulatory Network Associated with Starch Biosynthesis in Lotus (International journal of molecular sciences · 2022Article
- Integrative omics approaches revealed a crosstalk among phytohormones during tuberous root development in cassava.Plant molecular biology · 2022Article
- Polysaccharides of nutritional interest in jicama (Food science & nutrition · 2022Article
- A promoter toolbox for tissue-specific expression supporting translational research in cassava (Frontiers in plant science · 2022Article
- Auxin signaling and vascular cambium formation enable storage metabolism in cassava tuberous roots.Journal of experimental botany · 2021Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cassava (Manihot esculenta) is one of the most important staple food crops worldwide. Its starchy tuberous roots supply over 800 million people with carbohydrates. Yet, surprisingly little is known about the processes involved in filling of those vital storage organs. A better understanding of cassava carbohydrate allocation and starch storage is key to improving storage root yield. Here, we studied cassava morphology and phloem sap flow from source to sink using transgenic pAtSUC2::GFP plants, the phloem tracers esculin and 5(6)-carboxyfluorescein diacetate, as well as several staining techniques. We show that cassava performs apoplasmic phloem loading in source leaves and symplasmic unloading into phloem parenchyma cells of tuberous roots. We demonstrate that vascular rays play an important role in radial transport from the phloem to xylem parenchyma cells in tuberous roots. Furthermore, enzymatic and proteomic measurements of storage root tissues confirmed high abundance and activity of enzymes involved in the sucrose synthase-mediated pathway and indicated that starch is stored most efficiently in the outer xylem layers of tuberous roots. Our findings form the basis for biotechnological approaches aimed at improved phloem loading and enhanced carbohydrate allocation and storage in order to increase tuberous root yield of cassava.
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