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首页> 外文期刊>Acta Physiologiae Plantarum >Ultrastructural events during hypersensitive response of potato cv. Rywal infected with necrotic strains of potato virus Y
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Ultrastructural events during hypersensitive response of potato cv. Rywal infected with necrotic strains of potato virus Y

机译：马铃薯简历过敏反应期间的超微结构事件。 Rywal感染了马铃薯Y病毒的坏死株

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摘要

Potato plants cv. Rywal with hypersensitivity gene Ny-1 infected with PVYN or PVYNTN reacted in local necroses 3 days after infection. Potato virus Y (PVY) particles were found in epidermis, mesophyll, phloem and xylem cells in inoculated leaves. Noncapsidated virus particles (without capsid protein) were observed already 10 h after infection by using electron microscopy in situ. Capsid protein on one terminus of noncapsidated virus particles was located 5 days after inoculation with the use of immunogold labeling method. Whereas cytoplasmic inclusions were observed for the first time 24 days after infection during hypersensitive response. Ultrastructural studies showed that ER may take part in PVY RNA replication and capsidation of Potyvirus particles. Observed cytopathological changes and virus particles indicate that cell nucleus and mitochondrion might participate in PVY life cycle. During hypersensitive response PVY particles were found in plasmodesmata as well as in phloem and xylem.
机译：马铃薯植株简历。感染PVY N 或PVY NTN 的超敏基因Ny-1的Rywal在感染后3天发生局部坏死。在接种叶片的表皮，叶肉，韧皮部和木质部细胞中发现了马铃薯病毒Y（PVY）颗粒。感染后10 h通过电子显微镜原位观察到非衣壳病毒颗粒（无衣壳蛋白）。接种后5天，使用免疫金标记方法将未衣壳病毒颗粒的一个末端上的衣壳蛋白定位。感染后24天首次在超敏反应中观察到胞浆内含物。超微结构研究表明，ER可能参与了PVY RNA复制和波多病毒颗粒的衣壳化。观察到的细胞病理学变化和病毒颗粒表明细胞核和线粒体可能参与了PVY生命周期。在超敏反应过程中，在胞膜，韧皮部和木质部中发现了PVY颗粒。

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