Department of Plant Pathology, Washington State University, Prosser, WA, 99350, USA.
Arch Virol. 2021 May;166(5):1415-1419. doi: 10.1007/s00705-021-05015-z. Epub 2021 Feb 28.
Little cherry virus 2 (LChV-2) is a causal agent of little cherry disease, which produces small, misshapen fruit with poor color and taste. As LChV-2 symptoms are only present near harvest, molecular detection is essential for effective control. Therefore, we determined the titer and distribution of this virus in infected trees over time. While initial infections were found to be basipetal, in field trees, early-stage infection was characterized by uneven distribution and low titer, concentrated in woody stems. In contrast, established infections were systemic, and detection was consistent across tissues. These data provide improved sampling recommendations for the detection of LChV-2.
李属坏死环斑病毒 2 型（LChV-2）是小李果坏死病的病原体，会导致果实变小、畸形，颜色和口感不佳。由于 LChV-2 的症状仅在临近收获期时才会出现，因此分子检测对于有效控制该病毒至关重要。因此，我们确定了该病毒在受感染树木中的滴度和分布随时间的变化情况。虽然最初的感染是向基的，但在田间树木中，早期感染的特点是分布不均匀且滴度低，集中在木质茎部。相比之下，已建立的感染是系统性的，在所有组织中的检测结果都是一致的。这些数据为 LChV-2 的检测提供了改进的采样建议。
