Changes in activity of lysine decarboxylase in winter triticale in response to grain aphid feeding

Sempruch, C. and Leszczyński, B. and Wójcicka, Agnieszka and Makosz, M. and Matok, H. and Chrzanowski, G. (2010) Changes in activity of lysine decarboxylase in winter triticale in response to grain aphid feeding. Acta Biologica Hungarica, 61 (4). pp. 512-515. ISSN 0236-5383

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Abstract

Changes in lysine decarboxylase (LDC) activity caused by Sitobion avenae (F.) feeding on two winter triticale cultivars (cvs) were studied. The aphid fecundity and values of intrinsic rate of natural increase showed that cv Witon was less susceptible to S. avenae than cv Tornado. The grain aphid feeding on more susceptible triticale caused a decrease in the LDC activity, with exceptions of root tissues after two weeks of the feeding. In case of less susceptible cv Witon reduction of the LDC activity was observed only during initial period of S. avenae feeding. Later the aphid infestation induced activity of the LDC within tissues of cv Witon.

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