Effects of polygalacturonase overexpression on pectin distribution in the elongation zones of roots under aluminium stress.

ABSTRACT: The roots of many plant species contain large amounts of pectin and it contributes to the formation of the rhizosphere. In the present study, the relationship between the root-tip pectin content and aluminium (Al) tolerance in wild-type (WT) and demethylesterified pectin degradation enzyme gene overexpressor (OsPG2-FOX) rice lines was compared. OsPG2-FOX rice showed reduced pectin content in roots, even under control conditions; Al treatment reduced root elongation and the pectin content in the root elongation zone. Wild-type rice showed more pectin accumulation in the root elongation zone after Al treatment. Relative to WT rice, OsPG2-FOX rice showed more Al accumulation in the root elongation zone. These results indicate that the amount of pectin influences Al tolera

SUBMITTER: Nagayama T 

PROVIDER: S-EPMC8963292 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature