OsSWEET3a

• Symbol: OsSWEET3a
• MSU: LOC_Os05g12320
• RAPdb: Os05g0214300

• The dual function of OsSWEET3a as a gibberellin and glucose transporter is important for young shoot development in rice, 2020, Plant Cell Physiol.
• Mutation of OsSAC3, Encoding the Xanthine Dehydrogenase, Caused Early Senescence in Rice., 2022, Int J Mol Sci.

Genbank accession number

• OsSWEET3a expression co-localized with OsGA20ox1 expression in the vascular bundles but not with OsGA3ox2, whose expression was restricted to leaf primordia and young leaves
• Quantitative reverse transcription PCR, GUS staining, and in situ hybridization revealed that OsSWEET3a was expressed in vascular bundles in basal parts of the seedlings
• These results suggest that OsSWEET3a is expressed in the vascular tissue of basal parts of seedlings and is involved in the transport of both GA20 and glucose to young leaves, where GA20 is possibly converted to the bioactive GA1 form by OsGA3ox2, during early plant development
• The dual function of OsSWEET3a as a gibberellin and glucose transporter is important for young shoot development in rice
• Both knockout and overexpression lines of OsSWEET3a showed defects in germination and early shoot development, which were partially restored by GA, especially GA20
• OsSWEET3a efficiently transports GAs in the C13-hydroxylation pathway of GA biosynthesis

• d18~OsGA3ox2, OsSWEET3a, The dual function of OsSWEET3a as a gibberellin and glucose transporter is important for young shoot development in rice, OsSWEET3a expression co-localized with OsGA20ox1 expression in the vascular bundles but not with OsGA3ox2, whose expression was restricted to leaf primordia and young leaves
• d18~OsGA3ox2, OsSWEET3a, The dual function of OsSWEET3a as a gibberellin and glucose transporter is important for young shoot development in rice, These results suggest that OsSWEET3a is expressed in the vascular tissue of basal parts of seedlings and is involved in the transport of both GA20 and glucose to young leaves, where GA20 is possibly converted to the bioactive GA1 form by OsGA3ox2, during early plant development
• OsGA20ox1~GNP1~SDSFL1, OsSWEET3a, The dual function of OsSWEET3a as a gibberellin and glucose transporter is important for young shoot development in rice, OsSWEET3a expression co-localized with OsGA20ox1 expression in the vascular bundles but not with OsGA3ox2, whose expression was restricted to leaf primordia and young leaves
• OsSWEET3a, OsXDH~OsSAC3, Mutation of OsSAC3, Encoding the Xanthine Dehydrogenase, Caused Early Senescence in Rice., Moreover, carbohydrate distribution was changed, leading to the accumulation of sucrose and starch in the leaves containing ossac3 on account of decreased expression of OsSWEET3a, OsSWEET6a and OsSWEET14 and oxidized inactivation of starch degradation enzymes in ossac3
• Os11N3~OsSWEET14, OsSWEET3a, Mutation of OsSAC3, Encoding the Xanthine Dehydrogenase, Caused Early Senescence in Rice., Moreover, carbohydrate distribution was changed, leading to the accumulation of sucrose and starch in the leaves containing ossac3 on account of decreased expression of OsSWEET3a, OsSWEET6a and OsSWEET14 and oxidized inactivation of starch degradation enzymes in ossac3