GSD1

2015-01-20 | Categories genes  | Tags grain setting  photoassimilate translocation  plasma membrane  grain filling 

• Information
  • Symbol: GSD1
  • MSU: LOC_Os04g52920
  • RAPdb: Os04g0620200
• Publication
  • Grain setting defect 1, encoding a remorin protein, affects the grain setting in rice through regulating plasmodesmatal conductance, 2014, Plant Physiol.
  • Grain setting defect1 GSD1 function in rice depends on S-acylation and interacts with actin 1 OsACT1 at its C-terminal., 2015, Front Plant Sci.
• Genbank accession number
  • NM_001060440
• Key message
  • Grain setting defect 1, encoding a remorin protein, affects the grain setting in rice through regulating plasmodesmatal conductance
  • Together, our results suggest that GSD1 may play a role in regulating photoassimilate translocation through the symplastic pathway to impact grain setting in rice.
  • GSD1 was found to be specifically expressed in the plasma membrane and plasmodesmata (PD) of phloem companion cells.
  • Experimental evidence suggests the phenotype of the gsd1-D mutant is caused by defects in the grain filling process as a result of the impaired transport of carbohydrates from the photosynthetic site to the phloem.
• Connection
  • GSD1, OsACT1, Grain setting defect 1, encoding a remorin protein, affects the grain setting in rice through regulating plasmodesmatal conductance, GSD1 functioned in affecting PD conductance by interacting with OsACT1 in association with the PD callose binding protein PDCB1.
  • GSD1, OsACT1~OsActin-1~OsActin1, Grain setting defect1 GSD1 function in rice depends on S-acylation and interacts with actin 1 OsACT1 at its C-terminal., Grain setting defect1 (GSD1) function in rice depends on S-acylation and interacts with actin 1 (OsACT1) at its C-terminal.
  • GSD1, OsACT1~OsActin-1~OsActin1, Grain setting defect1 GSD1 function in rice depends on S-acylation and interacts with actin 1 OsACT1 at its C-terminal., Furthermore, the coiled-coil domain in GSD1 is necessary for sufficient interaction with OsACT1
  • GSD1, OsACT1~OsActin-1~OsActin1, Grain setting defect1 GSD1 function in rice depends on S-acylation and interacts with actin 1 OsACT1 at its C-terminal., Together, these results reveal that GSD1 attaches to the PM through S-acylation and interacts with OsACT1 through its coiled-coil domain structure to regulate plasmodesmata conductance for photoassimilate transport in rice

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