[Effects of exogenous nitric oxide donor on lipid peroxidation of pear leaves infected by Physalosproa pirico Nose].
This paper studied the effects of 0.3 mmol x L(-1) SNP on the antioxidant enzymes and reactive oxygen in pear leaves infected by Physalosproa piricola Nose. The results showed that compared with CK1 (spraying leaves with water and infecting with P. piricola Nose), 0.3 mmol x L(-1) SNP could increase the activities of leaf POD, SOD, CAT and PPO and the contents of leaf ASA, GSH and proline by 39.41%, 21.11%, 41.61%, 13.04%, 44.45%, 48.32% and 33.80%, while decrease the contents of leaf MDA and H2O2 and the generating rate of O2- by 20.45%, 6.93% and 6.27%, respectively, indicating that lower concentration SNP could reduce the damage of P. piricola Nose to pear leaves.
Liu
Zhao-Long
ZL
College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. nnzlf@sina.com
Zhang
Shao-Ling
SL
Suen
Yi-Lin
YL
D001203:Ascomycota / Q000254:growth & development*; D002374:Catalase / Q000378:metabolism; D015227:Lipid Peroxidation / Q000187:drug effects*; D020030:Nitric Oxide Donors / Q000494:pharmacology*; D010935:Plant Diseases / Q000382:microbiology; D018515:Plant Leaves / Q000378:metabolism* / Q000382:microbiology; D031989:Pyrus / Q000378:metabolism* / Q000382:microbiology; D013482:Superoxide Dismutase / Q000378:metabolism
D020030:Nitric Oxide Donors; D002374:Catalase; D013482:Superoxide Dismutase