ArticlePlant signaling & behavior2010
Maize SUT1 functions in phloem loading.
Article in Plant signaling & behavior, 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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Who cites it
31 citing papers in PubMed, 66 citations in OpenAlex.
- SnRK2.6 phosphorylates sucrose transporter ZmSUT1 to enhance yield by modulating leaf senescence in maize.Science advances · 2026Article
- Towards a Holistic View of the Orchestration Between Sugar Transporters in Cereal Crops.Plants (Basel, Switzerland) · 2026Article
- Assembly of Arundinella anomala genome to facilitate single-cell resolved functional and developmental characterization of CNature plants · 2026Article
- Plant SUT Sucrose Transporters: Structure, Evolution and Biological Functions.Current protein & peptide science · 2026Review
- The transcription factors ERF105 and NAC72 regulate expression of a sugar transporter gene and hexose accumulation in grape.The Plant cell · 2024Article
- Article
- Sugar sensing in C4 source leaves: a gap that needs to be filled.Journal of experimental botany · 2024Review
- From acidity to sweetness: a comprehensive review of carbon accumulation in grape berries.Molecular horticulture · 2024Review
- Maize plant expresses SWEET transporters differently when interacting withFrontiers in plant science · 2023Article
- Characterization of Stem Nodes Associated with Carbon Partitioning in Maize in Response to Nitrogen Availability.International journal of molecular sciences · 2022Article
- Sugar loading is not required for phloem sap flow in maize plants.Nature plants · 2022Article
- Maize Brittle Stalk2-Like3, encoding a COBRA protein, functions in cell wall formation and carbohydrate partitioning.The Plant cell · 2021Article
- Physiology and whole-plant carbon partitioning during stem sugar accumulation in sweet dwarf sorghum.Planta · 2021Article
- Plant SWEETs: from sugar transport to plant-pathogen interaction and more unexpected physiological roles.Plant physiology · 2021Review
- Plant guttation provides nutrient-rich food for insects.Proceedings. Biological sciences · 2020Article
- Interaction Between Induced and Natural Variation atG3 (Bethesda, Md.) · 2020Article
- Senescence-induced expression of ZmSUT1 in cotton delays leaf senescence while the seed coat-specific expression increases yield.Plant cell reports · 2019Article
- Genome-wide identification of MST, SUT and SWEET family sugar transporters in root parasitic angiosperms and analysis of their expression during host parasitism.BMC plant biology · 2019Article
- Maize Carbohydrate partitioning defective1 impacts carbohydrate distribution, callose accumulation, and phloem function.Journal of experimental botany · 2018Article
- The role of Tre6P and SnRK1 in maize early kernel development and events leading to stress-induced kernel abortion.BMC plant biology · 2017Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The functions of dicot sucrose transporters (SUTs) in apoplastic phloem loading of sucrose are well established; however, whether SUTs similarly function in monocots was unresolved. To address this question, we recently provided genetic evidence that ZmSUT1 from maize (Zea mays) is required for efficient phloem loading. sut1-m1 mutant plants hyperaccumulate carbohydrates in leaves, are defective in loading sucrose into the phloem, and have altered biomass partitioning. Presumably due to the hyperaccumulation of soluble sugars in leaves, mutations in ZmSUT1 lead to downregulation of chlorophyll accumulation, photosynthesis and stomatal conductance. However, because we had identified only a single mutant allele, we were not able to exclude the possibility that the mutant phenotypes were instead caused by a closely linked mutation. Based on a novel aspect of the sut1 mutant phenotype, secretion of a concentrated sugar solution from leaf hydathodes, we identified an additional mutant allele, sut1-m4. This confirms that the mutation of SUT1 is responsible for the impairment in phloem loading. In addition, the sut1-m4 mutant does not accumulate transcripts, supporting the findings reported previously that the original mutant allele is also a null mutation. Collectively, these data demonstrate that ZmSUT1 functions to phloem load sucrose in maize leaves.
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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 OpenQuestion graph.