Infection and Colonization of Potato Roots byVerticillium dahliaeas Affected byPratylenchus penetransandP. crenatus

Bowers, John H.

doi:10.1094/phyto-86-614

Cited by 83 publications

(47 citation statements)

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“…The colonizing hyphae of a GFPexpressing strain of V. dahliae and a long-spored crucifer strain were absent from the root tips of oilseed rape (Brassica napus) in a gnotobiotic (aseptic) system, but were found intermingled with developing root hairs and surface regions along main and lateral roots. Most studies are in agreement that wounded root tissues (whether by biotic or abiotic means) and areas of lateral root emergence are not predisposed to colonization by V. dahliae (20,48,59,112,163).…”

Section: A Novel Look At the Verticillium Disease Cyclementioning

confidence: 65%

“…No epiphytic colonies were observed along potato roots growing in soil infested with microsclerotia of V. dahliae. Instead, only the root tip was colonized (20). En masse, these findings suggest that successful vascular infection of the host is probably more dependent on the initial colonization site, rather than the frequency of root colonization.…”

Section: Wwwannualreviewsorg • Verticillium Species 45mentioning

confidence: 86%

“…Most studies of V. dahliae using immunoenzymatic and histological staining techniques observed colonization of the root cap and within the zone of root elongation on cotton (58), potato (20,112), and sainfoin (68). Conversely, Gerik & Huisman (59), using immunoenzymatic techniques, observed V. dahliae colonization at distances greater than 1 mm from the root tip on cotton.…”

Section: A Novel Look At the Verticillium Disease Cyclementioning

confidence: 99%

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Diversity, Pathogenicity, and Management of Verticillium Species

Klosterman

Atallah

Vallad

et al. 2009

Annu. Rev. Phytopathol.

636

564

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The genus Verticillium encompasses phytopathogenic species that cause vascular wilts of plants. In this review, we focus on Verticillium dahliae, placing emphasis on the controversy surrounding the elevation of a long-spored variant as a new species, recent advances in the analysis of compatible and incompatible interactions, highlighted by the use of strains expressing fluorescent proteins, and the genetic diversity among Verticillium spp. A synthesis of the approaches to explore genetic diversity, gene flow, and the potential for cryptic recombination is provided. Control of Verticillium wilt has relied on a panoply of chemical and nonchemical strategies, but is beset with environmental or site-specific efficacy problems. Host resistance remains the most logical choice, but is unavailable in most crops. The genetic basis of resistance to Verticillium wilt is unknown in most crops, as are the subcellular signaling mechanisms associated with Ve-mediated, race-specific resistance. Increased understanding in each of these areas promises to facilitate management of Verticillium wilts across a broad range of crops.

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Section: A Novel Look At the Verticillium Disease Cyclementioning

confidence: 65%

Section: Wwwannualreviewsorg • Verticillium Species 45mentioning

confidence: 86%

Section: A Novel Look At the Verticillium Disease Cyclementioning

confidence: 99%

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Diversity, Pathogenicity, and Management of Verticillium Species

Klosterman

Atallah

Vallad

et al. 2009

Annu. Rev. Phytopathol.

636

564

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“…Bowers 1996;Evans 1987). It is therefore essential to understand and appreciate the importance of each such relationship between pathogens in order to control disease through appropriate management methods.…”

Section: Introductionmentioning

confidence: 99%

Cultivar Effects on the Interaction between Free-Living Plant-Parasitic Nematodes and the Fungal Pathogen Rhizoctonia solani in Potato

2017

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Crop damage is associated with infection by plant pathogens but can also arise through abiotic factors. However, the plant pathogens are involved in biotic interactions with other plant pathogens, and these interactions may differ depending of the cultivar of the crop. Here, the interaction between the fungus Rhizoctonia solani (AG3) and free-living plant-parasitic nematodes was investigated in a pot experiment with different potato cultivars. No synergistic interaction between R. solani and plant-parasitic nematodes was found, instead there was an effect of treatment with lower tuber yield when nematodes occurred alone. There were differences among the cultivars regarding incidence of black scurf, dry weight of stems and tubers, and there was interactive effects between treatment and cultivar regarding dry weight of stolons and roots. Therefore, results concerning incidence and damage of R. solani and/or plant-parasitic nematodes found for one cultivar may not be applicable to other cultivars.Resumen El daño en el cultivo se asocia con infección por fitopatógenos, pero también puede surgir a través de factores abióticos. No obstante, los patógenos de plantas están involucrados en interacciones bióticas con otros patógenos, y estas interacciones pudieran diferir dependiendo de la variedad del cultivo. Aquí, se investigó la interacción entre el hongo Rhizoctonia solani (AG3) y nematodos fitoparásitos de vida libre en un experimento en macetas con diferentes variedades de papa. No se encontró una interacción sinergística entre R. solani y los nematodos fitoparásitos, en cambio, hubo un efecto de tratamiento con rendimiento más bajo de tubérculo cuando los nematodos estaban solos. Hubo diferencias entre variedades en relación a la incidencia de costra negra, peso seco de los tallos y los tubérculos, y hubo efectos interactivos entre tratamiento y variedad en relación al peso seco de los estolones y las raíces. De aquí que los resultados concernientes a la incidencia y daño de R. solani y/o nematodos fitoparásitos que se encontraron para una variedad pudieran no ser aplicables a otras.

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“…The most obvious solution is to use chemical methods to control one of the interacting organisms and thus prevent the disease complex from occurring. However, it is fundamental to have prior knowledge of the interaction involved, as even low densities of fungi or nematode can result in a disease complex of significant importance (Bowers et al, 1996). Carbofuran belonging to the carbamates group is a non-fumigant and had been reported to cure root-knot nematodes on various crops (Butool et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Studies on the management of root-knot nematode,Meloidogyne incognita-wilt fungus,Fusarium oxysporumdisease complex of green gram,Vigna radiatacv ML-1108

Haseeb

Sharma

Shukla

2005

J. Zhejiang Univ. Sci.

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Haseeb et al. / J Zhejiang Univ SCI 2005 6B(8):736-Abstract: Studies were conducted under pot conditions to determine the comparative efficacy of carbofuran at 1 mg a.i./kg soil, bavistin at 1 mg a.i./kg soil, neem (Azadirachta indica) seed powder at 50 mg/kg soil, green mould (Trichoderma harzianum) at 50.0 ml/kg soil, rhizobacteria (Pseudomonas fluorescens) at 50.0 ml/kg soil against root-knot nematode, Meloidogyne incognita-wilt fungus, Fusarium oxysporum disease complex on green gram, Vigna radiata cv ML-1108. All the treatments significantly improved the growth of the plants as compared to untreated inoculated plants. Analysis of data showed that carbofuran and A. indica seed powder increased plant growth and yield significantly more in comparison to bavistin and P. fluorescens. Carbofuran was highly effective against nematode, bavistin against fungus, A. indica seed powder against both the pathogens and both the bioagents were moderately effective against both the pathogens.

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Infection and Colonization of Potato Roots byVerticillium dahliaeas Affected byPratylenchus penetransandP. crenatus

Cited by 83 publications

References 0 publications

Diversity, Pathogenicity, and Management of Verticillium Species

Diversity, Pathogenicity, and Management of Verticillium Species

Cultivar Effects on the Interaction between Free-Living Plant-Parasitic Nematodes and the Fungal Pathogen Rhizoctonia solani in Potato

Studies on the management of root-knot nematode,Meloidogyne incognita-wilt fungus,Fusarium oxysporumdisease complex of green gram,Vigna radiatacv ML-1108

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