Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes
Commercial vineyards in southern Spain were surveyed and sampled during October to December 2004 to determine the extent to which common weeds present were suitable hosts of root-knot nematodes infesting soils of those vineyards. Seven weed species commonly growing in grapevine soils in southern Spain were found infected by either Meloidogyne incognita or M. javanica: Amaranthus retroflexus (redroot pigweed), Anchusa azurea (ox-tongue), Chenopodium album (goosefoot), Erodium moschatum (musk stork’s bill), Malva rotundifolia (low mallow), Sinapis alba (white mustard), and Solanum nigrum (black nightshade). The host suitability of the weeds to root-knot nematodes was evaluated on the basis of root galling severity and nematode population densities in soil and roots. Also, the host–parasite relationship in these naturally Meloidogyne-infected weeds was examined. All the weed species in the study were considered suitable hosts for M. incognita and M. javanica because: (a) high Meloidogyne spp. populations occurred in roots and surrounding soil of the weed species; (b) the severity of root galling was high, and (c) well-established permanent feeding sites were observed in the histopathological studies of infected root tissues. In addition, this study presents the first reports of S. alba and A. azurea as hosts for M. incognita, and of E. moschatum as a new host for M. javanica, thus increasing the list of reported weed hosts for Meloidogyne spp. These results indicate that noticeable population densities of M. incognita and M. javanica can be maintained or increased in these weeds, at population levels higher than those previously reported for the same nematodes infecting grapevine roots. The weeds infesting vineyards thus represent an important source of inoculum of Meloidogyne spp., and furthermore may act as reservoirs of these nematodes which can be disseminated within or among vineyards by agricultural operations.
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Format: | artículo biblioteca |
Language: | English |
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Springer
2008-01
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Subjects: | Alternative hosts, Grapevine, Histopathology, Host-parasite relationships, Meloidogyne incognita, Meloidogyne javanica, Nematode reproduction, Reservoir host, |
Online Access: | http://hdl.handle.net/10261/11069 |
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dig-ias-es-10261-110692019-02-25T10:53:56Z Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes Castillo, Pablo Rapoport, Hava F. Palomares Rius, Juan E. Jiménez-Díaz, Rafael M. Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host Commercial vineyards in southern Spain were surveyed and sampled during October to December 2004 to determine the extent to which common weeds present were suitable hosts of root-knot nematodes infesting soils of those vineyards. Seven weed species commonly growing in grapevine soils in southern Spain were found infected by either Meloidogyne incognita or M. javanica: Amaranthus retroflexus (redroot pigweed), Anchusa azurea (ox-tongue), Chenopodium album (goosefoot), Erodium moschatum (musk stork’s bill), Malva rotundifolia (low mallow), Sinapis alba (white mustard), and Solanum nigrum (black nightshade). The host suitability of the weeds to root-knot nematodes was evaluated on the basis of root galling severity and nematode population densities in soil and roots. Also, the host–parasite relationship in these naturally Meloidogyne-infected weeds was examined. All the weed species in the study were considered suitable hosts for M. incognita and M. javanica because: (a) high Meloidogyne spp. populations occurred in roots and surrounding soil of the weed species; (b) the severity of root galling was high, and (c) well-established permanent feeding sites were observed in the histopathological studies of infected root tissues. In addition, this study presents the first reports of S. alba and A. azurea as hosts for M. incognita, and of E. moschatum as a new host for M. javanica, thus increasing the list of reported weed hosts for Meloidogyne spp. These results indicate that noticeable population densities of M. incognita and M. javanica can be maintained or increased in these weeds, at population levels higher than those previously reported for the same nematodes infecting grapevine roots. The weeds infesting vineyards thus represent an important source of inoculum of Meloidogyne spp., and furthermore may act as reservoirs of these nematodes which can be disseminated within or among vineyards by agricultural operations. This research was supported in part by grant P06-AGR-01360 from Consejería de Innovación Ciencia y Empresa (CICE) of Junta de Andalucía. Peer reviewed 2009-02-27T10:39:28Z 2009-02-27T10:39:28Z 2008-01 artículo http://purl.org/coar/resource_type/c_6501 European Journal of Plant Pathology 120, nº1: 43-51 (2008) 0929-1873 http://hdl.handle.net/10261/11069 10.1007/s10658-007-9195-8 1573-8469 en http://dx.doi.org/10.1007/s10658-007-9195-8 none 4085 bytes image/gif Springer |
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Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host |
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Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host Castillo, Pablo Rapoport, Hava F. Palomares Rius, Juan E. Jiménez-Díaz, Rafael M. Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
description |
Commercial vineyards in southern Spain were surveyed and sampled during October to December 2004 to determine the extent to which common weeds present were suitable hosts of root-knot nematodes infesting soils of those vineyards. Seven weed species commonly growing in grapevine soils in southern Spain were found infected by either Meloidogyne incognita or M. javanica: Amaranthus retroflexus (redroot pigweed), Anchusa azurea (ox-tongue), Chenopodium album (goosefoot), Erodium moschatum (musk stork’s bill), Malva rotundifolia (low mallow), Sinapis alba (white mustard), and Solanum nigrum (black nightshade). The host suitability of the weeds to root-knot nematodes was evaluated on the basis of root galling severity and nematode population densities in soil and roots. Also, the host–parasite relationship in these naturally Meloidogyne-infected weeds was examined. All the weed species in the study were considered suitable hosts for M. incognita and M. javanica because: (a) high Meloidogyne spp. populations occurred in roots and surrounding soil of the weed species; (b) the severity of root galling was high, and (c) well-established permanent feeding sites were observed in the histopathological studies of infected root tissues. In addition, this study presents the first reports of S. alba and A. azurea as hosts for M. incognita, and of E. moschatum as a new host for M. javanica, thus increasing the list of reported weed hosts for Meloidogyne spp. These results indicate that noticeable population densities of M. incognita and M. javanica can be maintained or increased in these weeds, at population levels higher than those previously reported for the same nematodes infecting grapevine roots. The weeds infesting vineyards thus represent an important source of inoculum of Meloidogyne spp., and furthermore may act as reservoirs of these nematodes which can be disseminated within or among vineyards by agricultural operations. |
format |
artículo |
topic_facet |
Alternative hosts Grapevine Histopathology Host-parasite relationships Meloidogyne incognita Meloidogyne javanica Nematode reproduction Reservoir host |
author |
Castillo, Pablo Rapoport, Hava F. Palomares Rius, Juan E. Jiménez-Díaz, Rafael M. |
author_facet |
Castillo, Pablo Rapoport, Hava F. Palomares Rius, Juan E. Jiménez-Díaz, Rafael M. |
author_sort |
Castillo, Pablo |
title |
Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
title_short |
Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
title_full |
Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
title_fullStr |
Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
title_full_unstemmed |
Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes |
title_sort |
suitability of weed species prevailing in spanish vineyards as hosts for root-knot nematodes |
publisher |
Springer |
publishDate |
2008-01 |
url |
http://hdl.handle.net/10261/11069 |
work_keys_str_mv |
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_version_ |
1777662927179874304 |