Gene Details:

• MSU gene ID: LOC_Os02g49840
• RAPdb gene ID: Os02g0731200
• Gene Symbol: OsMADS57
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• An activation-tagged mutant OsMADS57-1 and OsMADS57-overexpression lines showed increased tillers, whereas OsMADS57 antisense lines had fewer tillers.
• OsMIR444a-overexpressing lines exhibited suppressed OsMADS57 expression and tillering.
• Furthermore, OsMADS57-1 was insensitive to strigolactone treatment to inhibit axillary bud outgrowth, and OsMADS57’s function in tillering was dependent on D14.
• Therefore, OsMIR444a-regulated OsMADS57, together with OsTB1, target D14 to control tillering.
• The interaction between OsMADS57 and OsTB1 modulates rice tillering via DWARF14.
• Here we report that OsMADS57 interacts with OsTB1 (TEOSINTE BRANCHED1) and targets D14 (Dwarf14) to control the outgrowth of axillary buds in rice.
• Here, we demonstrate that interacting transcription factors OsMADS57 and OsTB1 directly target the defense gene OsWRKY94 and the organogenesis gene D14 to trade off the functions controlling/moderating rice tolerance to cold.
• However, D14 transcription was directly promoted by OsMADS57 for suppressing tillering under the chilling treatment, whereas D14 was repressed for enhancing tillering under normal condition.
• Overexpression of OsMADS57 maintains rice tiller growth under chilling stress.
• OsMADS57 together with OsTB1 coordinates transcription of its target OsWRKY94 and D14 to switch its organogenesis to defense for cold adaptation in rice.
• We demonstrated that OsMADS57 and OsTB1 conversely affect rice chilling tolerance via targeting OsWRKY94.
• OsMADS57 binds directly to the promoter of OsWRKY94, activating its transcription for the cold stress response, while suppressing its activity under normal temperatures.
• OsMADS57 is abundantly expressed in xylem parenchyma cells of root stele and is induced by nitrate.
• 2 mM nitrate, OsMADS57 mutants had 31% less xylem loading of nitrate, while overexpression lines had two-fold higher levels.
• Rapid NO3- root influx experiments showed that mutation of OsMADS57 did not affect root nitrate uptake.
• Moreover, seminal root elongation was inhibited in OsMADS57 mutants, which may be associated with higher auxin levels in and auxin polar transport to root tips of mutant plants.
• Taken together, these results suggest that OsMADS57 has a role in regulating nitrate translocation from root to shoot via OsNRT2.
• 3a functions in nitrate translocation, indicating the possible interaction between OsMADS57 and OsNRT2.
• Rice transcription factor OsMADS57 regulates plant height by modulating gibberellin catabolism.
• These results indicated that OsMADS57 acts as an important transcriptional regulator that regulates stem elongation and panicle exsertion in rice via GA-mediated regulatory pathway.
• Here we investigated the functions of OsMADS57 in plant vegetative growth in rice (Oryza sativa).
• Knockdown of OsMADS57 reduced the plant height, internode elongation and panicle exsertion in rice plants.
• Moreover, OsMADS57 knockdown plants were more sensitive to gibberellic acid (GA3), and contained less bioactive GA3 than wild-type plants, which implied that OsMADS57 is involved in gibberellin (GA) pathway.
• The level of EUI1 transcripts involved in GA deactivation was also increased in OsMADS57 knockdown plants.
• In addition, OsMADS57 also modulated the expression of multiple genes involved in GA metabolism or GA signaling pathway, indicating the key and complex regulatory role of OsMADS57 in GA pathway in rice.
• However, the role of the transcription factor OsMADS57 under salinity stress is still unknown.
• Moreover, less reactive oxygen species (ROS) accumulated in OsMADS57 overexpressing lines when exposed to salt stress, as measured by 3, 3’-diaminobenzidine (DAB) or nitroblue tetrazolium (NBT) staining.
• Further experiments exhibited that overexpression of OsMADS57 in rice significantly increased the tolerance ability of plants to oxidative damage under salt stress, mainly by increasing the activities of antioxidative enzymes such as superoxide dismutase (SOD) and peroxidase (POD), reducing malonaldehyde (MDA) content and improving the expression of stress-related genes.
• Taken together, these results demonstrated that OsMADS57 plays a positive role in enhancing salt tolerance by activating the antioxidant system.

Function-related keywords:

• tiller ,  growth ,  strigolactone ,  tillering ,  dwarf ,  transcription-factor ,  defense ,  tolerance ,  cold-stress ,  stress ,  chilling ,  stress-response ,  xylem ,  root ,  shoot ,  auxin ,  root-elongation ,  nitrate ,  xylem-parenchyma ,  stem ,  panicle ,  gibberellin ,  vegetative ,  ga ,  height ,  plant-height ,  Gibberellin ,  GA ,  transcriptional-regulator ,  GA-deactivation ,  salinity ,  salt ,  oxidative ,  salt-tolerance ,  salt-stress ,  salinity-stress ,  reactive-oxygen-species

Literature:

• The interaction between OsMADS57 and OsTB1 modulates rice tillering via DWARF14 .  DOI:  10.1038/ncomms2542 ;  PMID:  23463009
• OsMADS57 together with OsTB1 coordinates transcription of its target OsWRKY94 and D14 to switch its organogenesis to defense for cold adaptation in rice .  DOI:  10.1111/nph.14977 ;  PMID:  29364524
• A Transcription Factor, OsMADS57, Regulates Long-Distance Nitrate Transport and Root Elongation .  DOI:  10.1104/pp.19.00142 ;  PMID:  30886113
• Rice transcription factor OsMADS57 regulates plant height by modulating gibberellin catabolism .  DOI:  10.1186/s12284-019-0298-6 ;  PMID:  31139953
• MiR529a controls plant height, tiller number, panicle architecture and grain size by regulating SPL target genes in rice (Oryza sativa L.) .  DOI:  10.1016/j.plantsci.2020.110728 ;  PMID:  33288029
• A rice transcription factor, OsMADS57, positively regulates high salinity tolerance in transgenic Arabidopsis thaliana and Oryza sativa plants .  DOI:  10.1111/ppl.13508 ;  PMID:  34287928

Related News:

Gene Resources:

• NCBI ID: AK241644
• UniProt accessions:

Sequences: