Expansins are cell wall loosening proteins, which are encoded by multigene families.
However, the physiological role of most expansin genes is still poorly understood. Here, we
functionally characterized an Al‐inducible expansin gene, Os EXPA 10, which is regulated
by a C2H2‐type zinc‐finger transcription factor, ART 1 in rice. A detailed expression analysis
showed that Os EXPA 10 was expressed in both the roots and shoots at a similar level, but
only the expression in the roots was rapidly upregulated in response to Al. Furthermore …

Expansins are cell wall loosening proteins, which are encoded by multigene families.
However, the physiological role of most expansin genes is still poorly understood. Here, we
functionally characterized an Al-inducible expansin gene, OsEXPA10, which is regulated by
a C2H2-type zinc-finger transcription factor, ART1 in rice. A detailed expression analysis
showed that OsEXPA10 was expressed in both the roots and shoots at a similar level, but
only the expression in the roots was rapidly upregulated in response to Al. Furthermore …