Tomato resistance to Botrytis cinerea induced by Chitosan | 澶婧澹宠绯璇卞伴浣
2011
Gu Liqiang, Tangshan Teachers College, Tangshan (China)
[Objective] The aim of this study was to explore the effect of tomatos resistance to Botrytis cinerea induced by exogenous Chitosan. [Method] The leaf spraying method was used to determine the induced resistance effect of Chitosan to tomato B. cinerea and the chlorophyll content, soluble protein, soluble sugar, proline influence, the activities of peroxidase (POD), malondialdehyde (MDA) and the Proline content in leaves of tomato. [Result] The induced resistance of Chitosan reached 58.26% at 14th d after treatment; Compared with the B. cinerea stress group, the chlorophyll content in leaves of tomato seedlings of B. cinerea stress + Chitosan group had increased by 34.63%, while that of soluble protein content, soluble sugar content, Pro content and POD activity was 5.30%, 10.83%, 16.21% and 16.88%, respectively (except for the MDA content, which was decreased by 16.54%). [Conclusion] Exogenous Chitosan could improve photosynthetic efficiency and protect enzymes activity to improve the resistance of tomato seedlings to B. cinerea.
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