Gene Details:

• MSU gene ID: LOC_Os03g06120
• RAPdb gene ID: Os03g0157300
• Gene Symbol: OsMCA1 PAD OsDMT1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• A promoter-reporter assay suggested that OsMCA1 mRNA is widely expressed in seed embryos, proximal and apical regions of shoots, and mesophyll cells of leaves and roots in rice.
• We also generated and characterized OsMCA1-RNAi transgenic plants and cultured cells; OsMCA1-suppressed plants showed retarded growth and shortened rachises, while OsMCA1-suppressed cells carrying Ca2+-sensitive photoprotein aequorin showed partially impaired changes in cytosolic free Ca2+ concentration ([Ca2+]cyt) induced by hypo-osmotic shock and trinitrophenol, an activator of mechanosensitive channels.
• A SNP in OsMCA1 responding for a plant architecture defect by deactivation of bioactive GA in rice.
• Our results revealed the pad is a loss-of-function mutant of the OsMCA1/PAD, leading to upregulation of genes related to GA deactivation, which decreased bioactive GA levels.
• PAD was universally expressed in rice tissues from the vegetative to reproductive growth stages, especially in seedlings, nodes and rachillae.
• Plasma Membrane Ca2+ Permeable Mechanosensitive Channel OsDMT1 Is Involved in Regulation of Plant Architecture and Ion Homeostasis in Rice.
• Here, we isolated and characterized a T-DNA insertion rice mutant OsDMT1 (Oryza sativa dwarf and multi-tillering1) that exhibited a severe dwarf phenotype and multi-tillering.

Function-related keywords:

• seed ,  shoot ,  root ,  growth ,  plant-architecture ,  architecture ,  GA ,  GA-deactivation ,  seedlings ,  node ,  rachillae ,  homeostasis ,  dwarf ,  plasma-membrane

Literature:

• Plasma membrane protein OsMCA1 is involved in regulation of hypo-osmotic shock-induced Ca2+ influx and modulates generation of reactive oxygen species in cultured rice cells .  DOI:  10.1186/1471-2229-12-11 ;  PMID:  22264357
• Roles of a putative mechanosensitive plasma membrane Ca2+-permeable channel OsMCA1 in generation of reactive oxygen species and hypo-osmotic signaling in rice .  DOI:  10.4161/psb.20521 ;  PMID:  22751305
• A SNP in OsMCA1 responding for a plant architecture defect by deactivation of bioactive GA in rice .  DOI:  10.1007/s11103-014-0257-y ;  PMID:  25307286
• Plasma Membrane Ca2+ Permeable Mechanosensitive Channel OsDMT1 Is Involved in Regulation of Plant Architecture and Ion Homeostasis in Rice .  DOI:  10.3390/ijms21031097 ;  PMID:  32046032

Related News:

Gene Resources:

• NCBI ID: AB601973
• UniProt accessions:

Sequences: