Please use this identifier to cite or link to this item:

Title: The Dorylaimid family Longidoridae in Portugal: 15 years late
Authors: Gutiérrez, Carlos
Bravo, Maria Antonia
Santos, Margarida
Vieira, Paulo
Mota, Manuel
Keywords: Dagger nematodes
needle nematodes
virus vector nematodes
Issue Date: 19-Aug-2015
Publisher: SBN - XXXII Congresso Brasileiro de Nematologia
Citation: XXXII Congresso Brasileiro de Nematologia
Abstract: Dagger and needle nematodes are one of the main group of parasitic nematodes in grapevine worldwide. They cause severe damage to plants by their direct feeding and, in addition, some species can transmit plant viruses. Grapevine fanleaf virus (GFLV) is transmitted by Xiphinema index and it is the main responsible for a progressive degeneration of grapevines which occurs in most vineyards worldwide. This research area has been deserted for over fifteen years in Portugal. The main objective is to determine the occurrence and distribution of longidorid species from vineyards in Portugal. Surveys are being conducted since 2015 on representative vineyards. A strategy based on the combination of morphometric and morphological characterizations with molecular analysis using ribosomal DNA segments (rDNA) (D2–D3 expansion regions of the 28S gene, ITS1 region, and 18S gene) and a segment of a mitochondrial DNA (mtDNA) (cytochrome c oxidase 1 subunit or COI) were used for identification of longidorids. Severe longidorid infestations were found in grapevine soils, highlighting X. index by its phytopathological importance. Longidorid nematodes detected, in order of decreasing frequency of total soil infestation were Xiphinema pachtaicum, X. index, X. italiae, and Xiphinema sp. Disease symptoms were observed on aboveground plant parts of the infected grapevines with X. index, displaying a yellow mosaic pattern in leaves characteristic of infections by GFLV
Type: lecture
Appears in Collections:MED - Comunicações - Em Congressos Científicos Nacionais

Files in This Item:

File Description SizeFormat
11_GutiérrezGutiérrez C 32 CBN PAG 74-75_2015.pdf2.46 MBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois