Gene Details:

• MSU gene ID: LOC_Os09g23640
• RAPdb gene ID: Os09g0401100
• Gene Symbol: STR1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Mutation of either of the Oryza sativa (rice) ABCG transporters blocked arbuscule growth of different AM fungi at a small and stunted stage, recapitulating the phenotype of Medicago truncatula stunted arbuscule 1 and 2 (STR1 and str2) mutants that are deficient in homologous ABCG genes.
• The half-size ABC transporters STR1 and STR2 are indispensable for mycorrhizal arbuscule formation in rice.
• Analogous to STR1 and STR2, at the root cortex level, the antiSTR1 transcript is specifically detected in arbusculated cells, suggesting unexpected modes of STR1 regulation in rice.
• Malnutrition of the fungus underlying limited arbuscular growth was excluded by the absence of complementation of the STR1 phenotype by wild-type nurse plants.
• Strigolactones have previously been hypothesized to operate as intracellular hyphal branching signals and possible substrates of STR1 and STR2.
• However, full arbuscule development in the strigolactone biosynthesis mutants d10 and d17 suggested strigolactones to be unlikely substrates of STR1/STR2.

Function-related keywords:

• transporter ,  root ,  growth ,  strigolactone ,  branching

Literature:

• The half-size ABC transporters STR1 and STR2 are indispensable for mycorrhizal arbuscule formation in rice .  DOI:  10.1111/j.1365-313X.2011.04842.x ;  PMID:  22077667

Related News:

Gene Resources:

• NCBI ID: JN608807
• UniProt accessions:

Sequences: