Aislados agresivos de Citrus tristeza virus en Chile son MCA13 positivo y tipo VT mientras que los aislados leves son MCA13 negativo y tipo T30

Translated title of the contribution: Aggressive Citrus tristeza virus isolates in Chile are MCA13-positive and VT type, while mild isolates are MCA13-negative and T30 type

XIMENA ALEJANDRA BESOAIN CANALES, Edson Bertolini, Rocío Camps, Fiona Ramella, María Teresa Gorris, Margarita Torres, Mariano Cambra

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Citrus tristeza virus (CTV) was reported in the 1960’s to affect Meyer lemon trees in Chile, but no field symptoms were observed. This study performed a complete biological, serological and molecular characterization of one hundred CTV isolates obtained from different hosts and geographical origins. Decline symptoms (DI) were not found on trees grafted onto sour orange. In Pica Oasis in northern Chile, stem pitting (SP) was found to affect grapefruit and Mexican lime trees. Most isolates present in the central area were considered mild (MCA-13-negative), while in the northern area aggressive isolates were observed and detected. Some of these isolates were capable of causing SP on grapefruit under field and greenhouse conditions and on sweet orange under greenhouse conditions. Almost all of these isolates were MCA13-positive and had nucleotide sequences associated with the VT genotype.

Translated title of the contributionAggressive Citrus tristeza virus isolates in Chile are MCA13-positive and VT type, while mild isolates are MCA13-negative and T30 type
Original languageSpanish
Pages (from-to)251-262
Number of pages12
JournalCiencia e Investigacion Agraria
Volume42
Issue number2
DOIs
StatePublished - 1 Aug 2015

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