Eggplant latent viroid: a friendly experimental system in the family Avsunviroidae
Eggplant latent viroid: a friendly experimental system in the family Avsunviroidae
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DOI：
10.1111/mpp.12358
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发表时间：
2016-10-01
影响因子：
4.9
通讯作者：
Daros, Jose-Antonio
中科院分区：
文献类型：
--
作者：
Daros, Jose-Antonio
茄子潜伏类病毒（EggplantLatentaneviroid，ELVd）是茄属病毒科（Avsunviroidae）中唯一的一种。Avsunviroidae家族中的所有类病毒在两种极性的链中都含有锤头状核酶，并且被认为在受感染细胞的叶绿体中复制。该家族包括另外两个属：Avsunvioid和Pelamovioid。物理性质ELVd由332-335个核苷酸的单链环状非编码RNA组成，其折叠成分支准棒状最小自由能构象。互补极性的RNA存在于受感染的细胞中，被认为是复制中间体。正（+）极性被任意分配给在感染组织中以较高浓度积累的链。宿主迄今为止，ELVd仅被证明感染茄子（SolanummelongenaL.），它被发现的物种。非常狭窄的宿主范围似乎是Avsunviroidae家族成员的共同特性。症状ELVd感染茄子显然是无菌的。传播ELVd是通过机械和种子传播的。有用的网站。
TaxonomyEggplant latent viroid (ELVd) is the only species of the genus Elaviroid (family Avsunviroidae). All the viroids in the family Avsunviroidae contain hammerhead ribozymes in the strands of both polarities, and are considered to replicate in thechloroplasts of infected cells. This family includes two other genera: Avsunviroid and Pelamoviroid.Physical propertiesELVd consists of a single-stranded, circular, non-coding RNA of 332-335 nucleotides that folds in a branched quasi-rod-like minimum free-energy conformation. RNAs of complementary polarity exist in infected cells and are considered to be replication intermediates. Plus (+) polarity is assigned arbitrarily to the strand that accumulates at a higher concentration in infected tissues.HostTo date, ELVd has only been shown to infect eggplant (Solanum melongena L.), the species in which it was discovered. A very narrow host range seems to be a common property in members of the family Avsunviroidae.SymptomsELVd infections of eggplants are apparently symptomless.TransmissionELVd is transmitted mechanically and by seed.Useful website.