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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido. |
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Data corrente: |
21/10/2021 |
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Data da última atualização: |
20/02/2025 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
CARNEIRO, R. M. D. G.; SANTOS, M. F. A.; CASTRO, J. M. da C. e. |
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Afiliação: |
REGINA MARIA DECHECHI G CARNEIRO, Cenargen; MARCILENE F. A. SANTOS; JOSE MAURO DA CUNHA E CASTRO, CPATSA. |
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Título: |
Nematodes. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: MITRA, S. Guava: botany, production and uses. Boston: CAB International, 2021. |
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Páginas: |
Cap. 14, p. 270-284. |
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Descrição Física: |
il. color. |
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DOI: |
10.1079/9781789247022.0014 |
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Idioma: |
Inglês |
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Conteúdo: |
Several plant-parasitic nematodes have been detected in association with guava trees in rhizosphere soil samples: Meloidogyne spp., Hoplolaimus spp., Pratylenchus spp., Helicotylenchus spp., Tylenchus spp., Tylenchorhynchus spp., Hemicriconemoides spp., Aphelenchoides spp., Longidorus spp., Xiphinema spp., Rotylenchulus spp. and others. These nematodes appear in studies on the diversity of the nematode community and are not correlated with damage to the guava crop (Ansari and Khan, 2012; Khan et al., 2012). In addition, Helicotylenchus dihystera, Pratylenchus brachyurus, Rotylenchulus reniformis, Mesocriconema sp., Hemicriconemoides strictathecatus, Pratylenchus sp., Tylenchorhynchus contractus, Xiphinema brevicolle and Monotrichodorus monohystera have also been found associated with guava roots with no reference to damage caused (Castellano et al., 2012). Indian authors have suspected that a complex (nematode × fungi) particularly H. dihystera and Fusarium oxysporum f.sp. psidii could be involved with guava wilt (Khan et al., 2001). Surveys conducted in healthy and diseased orchards in five Indian states, as well as experiments under controlled conditions, obtained convincing evidence that H. dihystera is involved in guava wilt. In South Africa, guava wilt is caused by Nalanthamala psidii, without nematode detection (Schoeman et al., 2017) and in India, guava wilt has been attributed to many fungi, with F. oxysporum f.sp. psidii being the most isolated from diseased trees, but no definitive proof of the causal agents of this disease and nematode relationship exists (see Chapter 15, this volume). The root-knot nematode (RKN) (Meloidogyne spp.) is a recognized limiting factor in commercial guava production in Central and South American and other countries (Carneiro et al., 2001; Xu et al., 2004; Iwahori and Ban, 2009; Humphreys et al., 2012; Kumar and Rawat, 2018). In Cuba, Puerto Rico, Mexico, Venezuela and Brazil, guava production has declined during the past quarter of a century due to increasing pressure from Meloidogyne spp. (El-Boraiand Duncan, 2005). Many detections made in the past, using the perineal region as an identification tool, have incorrectly shown the presence of Meloidogyne incognita, Meloidogyne javanica and Meloidogyne arenaria instead of Meloidogyne enterolobii (Moura and Moura, 1989; Villota and Agudelo, 1997; Crozzoli and Casassa, 1998Avelar-Mejía et al., 2001; Gallegos-Morales et al., 2009). In fact, for this nematode species, the perineal region presents very different profiles (Carneiro et al., 2001; Brito et al., 2004), leading to confusion with other species. More recently, surveys carried out in Costa Rica, Vietnam, India and South Africa using enzymatic and molecular markers have shown that the only species that occurs in guava is M. enterolobii (Carneiro et al., 2001; Molinari et al., 2005; Iwahori and Ban, 2009; Humphreys et al., 2012; Castro, 2019; Rashidifard et al., 2019), which is now called the guava RKN. In a greenhouse study of host suitability of guava cultivar Paluma, M. incognita, M. javanica and M. arenaria were not confirmed on the host. These Meloidogyne species did not parasitize guava. Only M. enterolobii reproduced in cultivars of this plant (Rossi et al., 2002; Carneiro et al., 2012). These results confirmed the misindentification of M. enterolobii (= Meloidogyne mayaguensis) using only morphological approaches. The following review of the nematodes from cultivated guava is limited to the major problem caused by M. enterolobii, its idenfication and its management strategies. Introduction; Synonymization of Meloidogyne enterolobii Yang & Eisenback, 1983 with Meloidogyne mayaguensis Rammah & Hirschmann, 1988; Methods of Identifying Meloidogyne Species; Life Cycle and Host Parasite Relationships; Resistance in Psidium spp. to Root-knot Nematodes; New Prospects Using Genetic Resistance in Brazil; Management Strategies. MenosSeveral plant-parasitic nematodes have been detected in association with guava trees in rhizosphere soil samples: Meloidogyne spp., Hoplolaimus spp., Pratylenchus spp., Helicotylenchus spp., Tylenchus spp., Tylenchorhynchus spp., Hemicriconemoides spp., Aphelenchoides spp., Longidorus spp., Xiphinema spp., Rotylenchulus spp. and others. These nematodes appear in studies on the diversity of the nematode community and are not correlated with damage to the guava crop (Ansari and Khan, 2012; Khan et al., 2012). In addition, Helicotylenchus dihystera, Pratylenchus brachyurus, Rotylenchulus reniformis, Mesocriconema sp., Hemicriconemoides strictathecatus, Pratylenchus sp., Tylenchorhynchus contractus, Xiphinema brevicolle and Monotrichodorus monohystera have also been found associated with guava roots with no reference to damage caused (Castellano et al., 2012). Indian authors have suspected that a complex (nematode × fungi) particularly H. dihystera and Fusarium oxysporum f.sp. psidii could be involved with guava wilt (Khan et al., 2001). Surveys conducted in healthy and diseased orchards in five Indian states, as well as experiments under controlled conditions, obtained convincing evidence that H. dihystera is involved in guava wilt. In South Africa, guava wilt is caused by Nalanthamala psidii, without nematode detection (Schoeman et al., 2017) and in India, guava wilt has been attributed to many fungi, with F. oxysporum f.sp. psidii being the most isolated from diseased trees, ... Mostrar Tudo |
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Palavras-Chave: |
M enterolobii; Meloidogyne enterolobii; Nematodes; Nematpoide das galhas. |
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Thesagro: |
Ciclo de Vida; Goiaba; Hospedeiro; Identificação de Estirpe; Nematóide; Resistência Genética. |
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Thesaurus Nal: |
Guavas; Psidium. |
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Categoria do assunto: |
--
A Sistemas de Cultivo |
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Marc: |
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Embrapa Semiárido (CPATSA) |
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