Gene Details:

• Gene ID: AT5G20830
• Gene Symbol: ASUS1, atsus1, SUS1, SUSY1
• Gene Name: sucrose synthase 1, Sucrose Synthase 1
• Description: sucrose synthase 1;(source:Araport11)
• TAIR Accession:
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT5G20830.1     AT5G20830.2     AT5G20830.3

Plant Ontology Annotations:

• PO:0009005  — root — raíz (Spanish, exact), radices (exact, plural), radix (exact), 根 (Japanese, exact), aerial root (narrow), climbing root (narrow)
• PO:0000013  — cauline leaf — hoja caulinar (Spanish, exact), 茎生葉、茎葉 (Japanese, exact)
• PO:0000014  — rosette leaf — hoja en roseta (Spanish, exact), ロゼット葉 (Japanese, exact)
• PO:0000035  — cotyledon vascular system — sistema vascular del cotiledón (Spanish, exact), 子葉維管系 (Japanese, exact)
• PO:0000036  — leaf vascular system — sistema vascular de la hoja (Spanish, exact), 葉維管系 (Japanese, exact), leaf venation (related)
• PO:0000056  — flower bud — floral bud (exact), yema floral (Spanish, exact), 花芽 (Japanese, exact)
• PO:0008003  — fruit vascular system — sistema vascular del fruto (Spanish, exact), 果実維管 系 (Japanese, exact)
• PO:0009001  — fruit — frucht (exact, German), fruto (exact, Spanish), 果実 (exact, Japanese), coenocarp (narrow), syncarp (narrow), aggregate fruit (broad), compound fruit (broad), dehiscent fruit (broad), diaspore (broad), indehiscent fruit (broad), multiple fruit (broad), propagule (broad)
• PO:0009010  — seed — semilla (Spanish, exact), 種子 (Japanese, exact), pyrene (narrow), diaspore (broad)
• PO:0009046  — flower — flor (Spanish, exact), 花 (Japanese, exact), floret (related), Asteraceae floret (narrow), basal flower (narrow), double flower (narrow), hermaphrodite flower (narrow), monoclinous flower (narrow), perfect flower (narrow)
• PO:0009047  — stem — caña (Spanish, exact), culm (exact), eje primario (Spanish, exact), primary axis (exact), primary stem (exact), tallo (Spanish, exact), tronco (Spanish, exact), 茎 (Japanese, exact), bole (narrow), cane (narrow), caudex (narrow), caudices (narrow), core (narrow), primocane (narrow), scape (narrow), stalk (narrow), trunk (narrow)
• PO:0009052  — inflorescence flower pedicel — 小花柄 (Japanese, related), pedicelo (Spanish, broad)
• PO:0000084  — plant sperm cell — célula espermática o esperma (Spanish, exact), male gamete (exact), microgamete (exact), 植物精子細胞 (Japanese, exact), sperm nucleus (related), sperm cell (broad)

Germplasm Phenotype:

• CS2109806  — susceptible to waterlogging (SUS1 and SUS4 are together necessary for tolerance of hypoxic conditions)
• sus1 (SALK)  — No visible phenotype.
• sus1 (SALK)  — The amounts of glucose, fructose, sucrose, cellulose (roots) and starch in the mutant were not statistically significantly different from those of the equivalent wild-type lines grown under the same conditions at the same time.
• sus1 sus4  — The activity of SUS was reduced to 10% of wild-type levels in leaves of the mutant, and was undetectable (reduced to less than 10% of wild-type levels) in roots. The activity of invertase was unaffected in roots of this mutant, but in leaves neutral invertase activity was elevated by about 40%.
• sus1 sus4  — The double mutant line was much more severely affected by flooding. After the 4 days of flooding, root weight had increased by only 44% (compared to 72% for wild type), and there was not statistically significant gain in root weight in the 3 days following flooding. At the end of the 7-day period, the flooding treatment had reduced the gain in root weight by 71% relative to unflooded control plants (compared to 33% for wild type).
• sus1 sus4  — The sugar content of leaves was substantially higher than that of the wild-type control. This was most pronounced at the end of the night, when glucose and fructose were almost ninefold higher in mutant than wild-type leaves and sucrose was more than twofold higher.
• sus1 sus4  — When grown in soil, the double mutant line was not obviously different from wild-type controls. However, when grown hydroponically, the mutants grew considerably more slowly.

Function-related keywords:

• root ,  cauline leaf ,  rosette leaf ,  cotyledon vascular system ,  leaf vascular system ,  flower bud ,  fruit vascular system ,  fruit ,  root ,  seed ,  flower ,  stem ,  inflorescence flower pedicel ,  plant sperm cell

Literature:

• Structure and expression profile of the sucrose synthase multigene family in Arabidopsis.   DOI:  10.1093/jxb/erh047 ;  PMID:  14739263
• Immediate-early and delayed cytokinin response genes of Arabidopsis thaliana identified by genome-wide expression profiling reveal novel cytokinin-sensitive processes and suggest cytokinin action through transcriptional cascades.   DOI:  10.1111/j.1365-313X.2005.02530.x ;  PMID:  16212609
• Analysis of the sucrose synthase gene family in Arabidopsis.   DOI:  10.1111/j.1365-313X.2006.03011.x ;  PMID:  17257168
• Global analysis of Arabidopsis gene expression uncovers a complex array of changes impacting pathogen response and cell cycle during geminivirus infection.   DOI:  10.1104/pp.108.121038 ;  PMID:  18650403
• Normal growth of Arabidopsis requires cytosolic invertase but not sucrose synthase.   DOI:  10.1073/pnas.0900689106 ;  PMID:  19470642
• Sucrose synthase activity in the sus1/sus2/sus3/sus4 Arabidopsis mutant is sufficient to support normal cellulose and starch production.   DOI:  10.1073/pnas.1117099109 ;  PMID:  22184213
• A sensitive method for confocal fluorescence microscopic visualization of starch granules in iodine stained samples.   DOI:  10.4161/psb.21370 ;  PMID:  22899048
• In situ UDP-glucose regeneration unravels diverse functions of plant secondary product glycosyltransferases.   DOI:  10.1016/j.febslet.2012.10.045 ;  PMID:  23159939
• Metabolomic analysis reveals the relationship between AZI1 and sugar signaling in systemic acquired resistance of Arabidopsis.   DOI:  10.1016/j.plaphy.2016.06.016 ;  PMID:  27337039
• Both AtrbohD and AtrbohF are essential for mediating responses to oxygen deficiency in Arabidopsis.   DOI:  10.1007/s00299-017-2128-x ;  PMID:  28337518
• Analysis of a novel mutant allele of GSL8 reveals its key roles in cytokinesis and symplastic trafficking in Arabidopsis.   DOI:  10.1186/s12870-018-1515-y ;  PMID:  30466394
• Salinity Effects on Sugar Homeostasis and Vascular Anatomy in the Stem of the Arabidopsis Thaliana Inflorescence.   DOI:  10.3390/ijms20133167 ;  PMID:  31261714
• Integrative Analysis from the Epigenome to Translatome Uncovers Patterns of Dominant Nuclear Regulation during Transient Stress.   DOI:  10.1105/tpc.19.00463 ;  PMID:  31519798
• Arabidopsis sucrose synthase localization indicates a primary role in sucrose translocation in phloem.   DOI:  10.1093/jxb/erz539 ;  PMID:  31805187
• Impact of Drought on Soluble Sugars and Free Proline Content in Selected Arabidopsis Mutants.   DOI:  10.3390/biology9110367 ;  PMID:  33137965
• An Arabidopsis Prolyl 4 Hydroxylase Is Involved in the Low Oxygen Response.   DOI:  10.3389/fpls.2021.637352 ;  PMID:  33790927
• Sucrose synthase activity is not required for cellulose biosynthesis in Arabidopsis.   DOI:  10.1111/tpj.15752 ;  PMID:  35362151
• A genome-wide analysis of the effects of sucrose on gene expression in Arabidopsis seedlings under anoxia.   DOI:  10.1104/pp.104.057299 ;  PMID:  15734908
• The early responses of Arabidopsis thaliana cells to cadmium exposure explored by protein and metabolite profiling analyses.   DOI:  10.1002/pmic.200500543 ;  PMID:  16502469
• The early responses of Arabidopsis thaliana cells to cadmium exposure explored by protein and metabolite profiling analyses.   DOI:  10.1002/pmic.200500543 ;  PMID:  16502469
• Analysis of protein complexes in Arabidopsis leaves using size exclusion chromatography and label-free protein correlation profiling.   DOI:  10.1016/j.jprot.2017.06.004 ;  PMID:  28627464

Sequences: