Department of Biochemistry, University of Calcutta, Kolkata, India.
Plant Signal Behav. 2010 Jun;5(6):668-76. doi: 10.4161/psb.5.6.11282. Epub 2010 Jun 1.
Nitric oxide (NO) plays a key role in plant diseases resistance. Here we have first time demonstrated that begomovirus infection in susceptible H. cannabinus plants, results in elevated NO and reactive nitrogen species production during early infection stage not only in infected leaf but also in root and shoot. Production of NO was further confirmed by oxyhemoglobin assay. Furthermore, we used Phenyl alanine ammonia lyase as marker of pathogenesis related enzyme. In addition evidence for protein tyrosine nitration during the early stage of viral infection clearly showed the involvement of nitrosative stress.
一氧化氮(NO)在植物疾病抗性中起着关键作用。在这里,我们首次表明,易感大麻感染单链 DNA 病毒后,不仅在感染叶片中,而且在根和茎中,在早期感染阶段会导致 NO 和活性氮物种的产生增加。NO 的产生通过氧合血红蛋白测定进一步得到证实。此外,我们还使用苯丙氨酸氨裂解酶作为病程相关酶的标记物。此外,病毒感染早期蛋白质酪氨酸硝化的证据清楚地表明了硝化应激的参与。