PGIP1 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana.
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Nature408(6814)823-6(2000 Dec)

the transcription level of AtPGIP1 and AtPGIP2 was both up-regulated in response to infection with Stemphylium solani which caused hypersensitive cell death, but the transcription level of AtPGIP2 was less induced than AtPGIP1
Title: Spatial distribution of polygalacturonase-inhibiting proteins in Arabidopsis and their expression induced by Stemphylium solani infection.

PGIP1 activity contributes to basal resistance to Botrytis cinerea and is suggested to play a role in Arabidopsis innate immunity.
Title: Antisense expression of the Arabidopsis thaliana AtPGIP1 gene reduces polygalacturonase-inhibiting protein accumulation and enhances susceptibility to Botrytis cinerea.