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[Objective] The paper was to understand whether abscisic acid (ABA) participates the defense effect of hosts against Turnip crinkle virus (TCV). [Method] By external application of ABA and using the corresponding mutants, TCV coat protein levels of various plants were detected by western-blot, and the expression of defense-related genes was analyzed by RT-PCR. [Result] After external application of SA, JA, ET and ABA, only SA and ABA could significantly inhibit TCV accumulation. In arabidopsis-TCV interaction system, SA and ABA had antagonistic effect with each other, the defense effect against TCV induced by ABA was independent on SA pathway. [Conclusion] The plants could activate distinct signal pathways to adjust the defense of hosts against virus.
[Objective] The paper was to understand whether abscisic acid (ABA) participates the defense effect of hosts against Turnip crinkle virus (TCV). [Method] By external application of ABA and using the corresponding mutants, TCV coat protein levels of various plants were detected by western-blot, and the expression of defense-related genes were analyzed by RT-PCR. [Result] After external application of SA, JA, ET and ABA, only SA and ABA could inhibit inhibitory effect on TCV accumulation. interaction system, SA and ABA had antagonistic effect with each other, the defense effect against TCV induced by ABA was independent on SA pathway. [Conclusion] The plants could activate distinct signal pathways to adjust the defense of hosts against virus.