A pathogen-responsive cDNA from potato encodes a protein with homology to a phosphate starvation-induced phosphatase.
Infiltration of potato leaves with the phytopathogenic bacteria Pseudomonas syringae pv. maculicola induces local and systemic defense gene expression as well as increased resistance against subsequent pathogen attacks. By cDNA-AFLP a gene was identified that is activated locally in potato leaves in response to bacterial infiltration and after infection with Phytophthora infestans, the causal agent of late blight disease. The encoded protein has high homology to a phosphate starvation-induced acid phosphatase from tomato. Possibly, decreased phosphate availability after pathogen infection acts as a signal for the activation of the potato phosphatase gene.
D000595:Amino Acid Sequence; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D007113:Immunity, Innate / Q000235:genetics; D008969:Molecular Sequence Data; D010710:Phosphates / Q000172:deficiency; D010744:Phosphoric Monoester Hydrolases / Q000235:genetics* / Q000378:metabolism; D010838:Phytophthora / Q000254:growth & development; D010935:Plant Diseases / Q000235:genetics* / Q000382:microbiology; D018515:Plant Leaves / Q000235:genetics / Q000382:microbiology; D011549:Pseudomonas / Q000254:growth & development; D017386:Sequence Homology, Amino Acid; D015398:Signal Transduction / Q000235:genetics / Q000502:physiology; D011198:Solanum tuberosum / Q000201:enzymology / Q000235:genetics* / Q000382:microbiology
D018076:DNA, Complementary; D010710:Phosphates; D010744:Phosphoric Monoester Hydrolases