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陶小苏

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Although a causal connection between the accumulation of
chitinase and -1,3-glucanase and systemic protection has not yet
been established, the occurrence of high levels of these enzymes
in systemically protected tissue suggest their involvement in
disease resistance. In fresh apples, the onset of the systemic resistance
to B. cinerea closely paralleled the increase in chitinase and
-1,3-glucanase activity in systemically protected tissue. These
results, which are consistent with the temporal and spatial induction
of pathogenesis-related (PR) proteins and likely concomitantly
with induced resistance (8,21), show that apple fruit are capable
of responding to microbial elicitor treatment as seen in other
crops. In several plant–pathogen interactions, the induction and
accumulation of PR proteins including chitinase and -1,3-glucanase
is often correlated with the onset of induced resistance (12,
17,21,22). Chitinase and -1,3-glucanase hydrolyze fungal cell
walls and in combination they have been shown to inhibit the in
vitro growth of several pathogenic fungi (18,20).
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sltmac: 金币+1 2012-06-10 10:03:21
sltmac: 违规存档, 机器翻译 2012-07-24 11:05:35

陶小苏

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