Comparative analysis of proteome changes induced by the two spotted spider miteTetranychus urticae and methyl jasmonate in citrus leaves
B.E. Maserti, R. Del Carratore, C.M. Della Croce, A. Podda, Q. Migheli, Y. Froelicher, F. Luro, R. Morillon, P. Ollitrault, M. Talon and M. Rossignol
Journal of Plant Physiology, Volume 168, Issue 4, 1 March 2011, Pages 392-402
2011
บทคัดย่อ
Citrusplantsare currently facing biotic and abiotic stresses. Therefore, the characterization of molecular traits involved in the response mechanisms to stress could facilitate selection of resistant varieties. Although large cDNA microarray profiling has been generated in citrus tissues, the available protein expression data are scarce. In this study, to identify differentially expressed proteins in Citrusclementina leaves after infestation by the two-spotted spider miteTetranychus urticae, a proteome comparison was undertaken using two-dimensional gel electrophoresis. The citrus leaf proteome profile was also compared with that of leaves treated over 0–72 h with methyl jasmonate, a compound playing a key role in the defense mechanisms of plants to insect/arthropod attack. Significant variations were observed for 110 protein spots after spider miteinfestation and 67 protein spots after MeJA treatments. Of these, 50 proteins were successfully identified by liquid chromatography–mass spectrometry–tandem mass spectrometry. The majority constituted photosynthesis- and metabolism-related proteins. Five were oxidative stress associated enzymes, including phospholipid glutathione peroxidase, a salt stressed associated protein, ascorbate peroxidase and Mn-superoxide dismutase. Seven were defense-related proteins, such as the pathogenesis-related acidic chitinase, the protease inhibitor miraculin-like protein, and a lectin-like protein. This is the first report of differentially regulated proteins after T. urticae attack and exogenous MeJA application in citrus leaves.