Plant Physiol BiochemJClub
Characterization of a salt-responsive promoter from the moss Physcomitrium patens.
Plant Physiology and Biochemistry · · Journal Article · Open access
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Abstract ↗AI summary
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Pp3c20_8210 is a salt-inducible promoter in Physcomitrium patens that maintains continuous salt-responsive Venus expression in engineered promoter fragments.
- Why it matters: Salt-responsive gene regulation is needed to build abiotic stress-tolerant plants, but promoter architecture and key cis-elements remain insufficiently defined.
- What they did: The authors monitored protein expression from native Physcomitrium patens promoters under high osmotic and saline stress, then tested shorter engineered versions of Pp3c20_8210 with deletions of Homeodomain, MYB, GATA, and Dof binding sites.
- The result: Removing Homeodomain and GATA sites reduced Venus reporter expression, while MYB and Dof deletions showed no statistically significant change, suggesting primary roles for Homeodomain/GATA and possible compensation by other elements.
The findingWhy it mattersWhat they didThe result
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