ArticlePlant physiology2003
Diurnal and light-regulated expression of AtSTP1 in guard cells of Arabidopsis.
Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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Who cites it
53 citing papers in PubMed, 123 citations in OpenAlex.
- Article
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- In Vitro Conditions Research ofPlants (Basel, Switzerland) · 2025Article
- Single-cell RNA-seq reveals a link of ovule abortion and sugar transport inFrontiers in plant science · 2024Article
- Article
- Leaf starch metabolism sets the phase of stomatal rhythm.The Plant cell · 2023Article
- The functional analysis of sugar transporter proteins in sugar accumulation and pollen tube growth in pummelo (Frontiers in plant science · 2022Article
- Plant glucose transporter structure and function.Pflugers Archiv : European journal of physiology · 2020Review
- Glucose uptake to guard cells via STP transporters provides carbon sources for stomatal opening and plant growth.EMBO reports · 2020Article
- Role of blue and red light in stomatal dynamic behaviour.Journal of experimental botany · 2020Review
- Genome-wide identification, expression, and association analysis of the monosaccharide transporter (MST) gene family in peanut (3 Biotech · 2020Article
- TaSTP13 contributes to wheat susceptibility to stripe rust possibly by increasing cytoplasmic hexose concentration.BMC plant biology · 2020Article
- Common and unique Arabidopsis proteins involved in stomatal susceptibility to Salmonella enterica and Pseudomonas syringae.FEMS microbiology letters · 2019Article
- Article
- Molecular Evolution and Interaction of Membrane Transport and Photoreception in Plants.Frontiers in genetics · 2019Review
- INDUCER OF CBF EXPRESSION 1 is a male fertility regulator impacting anther dehydration in Arabidopsis.PLoS genetics · 2018Article
- Glucose Uptake via STP Transporters Inhibits in Vitro Pollen Tube Growth in a HEXOKINASE1-Dependent Manner inThe Plant cell · 2018Article
- The Sugar-Signaling Hub: Overview of Regulators and Interaction with the Hormonal and Metabolic Network.International journal of molecular sciences · 2018Review
- Roles of Chloroplast Retrograde Signals and Ion Transport in Plant Drought Tolerance.International journal of molecular sciences · 2018Review
- Sugar Transporter STP7 Specificity for l-Arabinose and d-Xylose Contrasts with the Typical Hexose Transporters STP8 and STP12.Plant physiology · 2018Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Guard cell chloroplasts are unable to perform significant photosynthetic CO2 fixation via Rubisco. Therefore, guard cells depend on carbon supply from adjacent cells even during the light period. Due to their reversible turgor changes, this import cannot be mediated by plasmodesmata. Nevertheless, guard cells of several plants were shown to use extracellular sugars or to accumulate sucrose as an osmoticum that drives water influx to increase stomatal aperture. This paper describes the first localization of a guard cell-specific Arabidopsis sugar transporter involved in carbon acquisition of these symplastically isolated cells. Expression of the AtSTP1 H+-monosacharide symporter gene in guard cells was demonstrated by in situ hybridization and by immunolocalization with an AtSTP1-specific antiserum. Additional RNase protection analyses revealed a strong increase of AtSTP1 expression in the dark and a transient, diurnally regulated increase during the photoperiod around midday. This transient increase in AtSTP1 expression correlates in time with the described guard cell-specific accumulation of sucrose. Our data suggest a function of AtSTP1 in monosaccharide import into guard cells during the night and a possible role in osmoregulation during the day.
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