Single-site root inoculations on eggplant with microsclerotia ofVerticillium dahliae

Bejarano-Alcázar, José; Termorshuizen, A.J.; Jiménez-Dı́az, Rafael M.

doi:10.1007/bf02981484

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…The plant mortality was the highest, and growth of surviving ones was gradually decreasingly inhibited from the stage of transplanting due to given inoculum. This interpretation is consistent with a previous study on infection that could be achieved by single-site inoculations of roots of eggplant seedlings with microsclerotia of the wilt-causing V. dahliae (Bejarano-Alcazar at al., 1999). Afterwards, we reached the opinion that plant growth had accelerated owing to reducing of the number plant per plot and increasing the soil temperature.…”

Section: Plant Growthsupporting

confidence: 93%

“…In that practical application, considering the possibility of infection of V. dahliae instead of the first one, that is, with "+S +12 kg FCM m -2 +Vd" treatment, this increase was 4.3 folds according to last one (Figure 4). These findings obtained by us in field conditions are consistent with those of earlier studies in controlled environments (Grogan et al, 1979;Paplomatas et al, 1992;Pullman and DeVay, 1982;Xiao and Subbarao, 1998;Bejarano-Alcazar at al., 1999).…”

Section: Treatmentssupporting

confidence: 93%

“…The young eggplant seedlings must have been died by inoculums mixed in the ground of seedling planting. In fact this interpretation is consistent with previous studies reporting that infection could be achieved by single-site inoculations of roots of eggplant seedlings with microsclerotia of the wilt-causing V. dahliae (Bejarano-Alcazar et al, 1999), and that occurrence of Verticillium wilt and its severity increased with increasing soil inoculum level of V. dahliae (Grogan et al, 1979; Paplomatas et al, 1992;Pullman and DeVay, 1982;Xiao and Subbarao, 1998). Decreasing seedling losses, the severity of V. dahliae infection with artificial inoculum must have been reduced because chicken manure is rich organic manure, stimulating the growth of antagonistic saprophytic microorganisms.…”

Section: The Determination Of Plant Mortality and Disease Severitysupporting

confidence: 93%

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Effect of solarization with fresh chicken manure on verticillium wilt (Verticillium dahliae Klebb) and yield in eggplant

Cimen¹,

Başaran²

2016

Afr. J. Biotechnol.

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The present study was carried out to evaluate the effect of reducing wilt disease through the medium of fresh chicken manure (FCM) mixed with soil before solarized and then artificial Verticillium dahliae (V.d) inoculation on yield of eggplant (Solanum melongena L.) under field conditions. According to the splitplot design, solarization of main plots, sub-plots with fresh chicken manure and V dahliae inoculation were established as a mini parcel in experiment with three replications. During solarization, the average temperature values were ensured by means of increasing the fresh chicken manure per unit area recorded 24 times per day (24 h) at intervals of one week. Among the 6 applications form, the highest average temperature was obtained at "12 kg FCM m-2 +solarization" application for soil surface, 10, 20 and 30 cm depth. There was increasing 18°C, a temperature according to control (no FCM), and this difference decreased with increasing soil depth, which was calculated as 8°C at 30 cm depth soil. During the day, the highest temperature values were obtained in the middle of the day on the ground, and underground measurements were performed at night.

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Section: Plant Growthsupporting

confidence: 93%

Section: Treatmentssupporting

confidence: 93%

Section: The Determination Of Plant Mortality and Disease Severitysupporting

confidence: 93%

See 1 more Smart Citation

Effect of solarization with fresh chicken manure on verticillium wilt (Verticillium dahliae Klebb) and yield in eggplant

Cimen¹,

Başaran²

2016

Afr. J. Biotechnol.

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“…Gerik & Huisman (59) estimated that only 0.02% of root infections by V. dahliae on cotton led to systemic infection of the plant. Similarly, a single-site root inoculation study with microsclerotia on eggplant found that a small number of microsclerotia was sufficient to infect most roots, but only 1 out of 205 inoculations led to a systemically infected plant (14). On lettuce inoculated with conidia of V. dahliae, colonies were distributed at random, but with time only those that initiated at the root cap or zone of root elongation led to vascular infections (163).…”

Section: Wwwannualreviewsorg • Verticillium Species 45mentioning

confidence: 99%

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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“…Probablemente, en olivo la invasión de V. dahliae debe tener lugar directamente a través de la epidermis intacta de las zonas de la raíz en procesos de diferenciación y elongación próximas al ápice radical, o de las zonas de inserción de raíces secundarias, pero está claramente favorecida por micro o macro-heridas de diversa naturaleza. Tras la penetración directa de la epidermis radical, el hongo crece intra-e intercelularmente hasta alcanzar el tejido cortical, pero la mayoría de dichas infecciones fracasan en alcanzar el cilindro vascular y establecer infecciones vasculares, que son imprescindibles para la patogénesis (Garber, 1966;Nagtzaam, 1998;Bejarano Alcázar et al, 1999).…”

Section: Ciclo De Vida V Dahliae Infección Colonización Y Desarrolunclassified

Revisión de antecedentes, presencia, incidencia, severidad, frecuencia de agentes asociados y mermas de rendimiento para “rama seca” del olivo en la provincia de La Rioja

Roca¹

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“Rama seca” es el principal problema del olivar riojano. En una finca en Catinzaco, provincia de La Rioja se estimó su incidencia entre 2001 y 2005. En 2009 se evaluó severidad en plantaciones de 1999 y 2001. Adicionalmente en 2009 y 2010 se realizó el seguimiento de 130 plantas sintomáticas y asintomáticas cv ‘Picual’(plantación 1999) registrando severidad, efecto de variables ambientales, reducción de rendimiento y etiología. La detección de Verticillium dahliae Kleb se efectuó por técnicas tradicionales, qPCR y nPCR. Entre 2001 y 2005, la incidencia aumentó diez veces en el grupo ‘Arbequina’, ‘Barnea’, ‘Kadesh’, ‘Manzanilla’, ‘Nabalí’, ‘Novo’ y ‘Picual’, con los mayores valores para ‘Kadesh’ y ‘Manzanilla’. La plantación 1999, mostró severidad >60% en ‘Mission’ y ‘Sirio’; mientras que en la del 2001, ‘Barnea’ cuadriplicó a ‘Arbequina’ y duplicó a ‘Picual’. ‘Arbequi- na’ mostró los menores valores de incidencia y severidad. La parcela cv ‘Picual’ de 1999, mostró diferencias de severidad entre plantas asintomáticas y enfermas, entre fechas de evaluación e interacción. Las ecuaciones de regresión entre la severidad y las variables climáticas que mejor predijeron el avance de la enfermedad, estuvieron conformadas por un factor lineal con temperaturas inferiores a 20ºC y otro exponencial con temperaturas superiores a 35ºC; el primer factor tendió a disminuir la enfermedad y el segundo a estabilizarla. Asimismo la severidad de “rama seca” tendió a incrementarse con el aumento de las precipitaciones. La reducción en rendimiento alcanzó 93% (2009). La regresión de datos de severidad y rendimiento 2009 y 2010, mostró asociación entre las variables analizadas. La técnica nPCR permitió detectar por primera vez a la cepa defoliante de V. dahliae en ‘Picual’, mientras que qPCR resultó altamente sensible y específico para V. dahliae. Es la primera cita de la detección de la cepa defoliante de V. dahliae en olivo en Argentina y la primera evaluación de pérdidas de rendimiento atribuibles a “rama seca”.

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Single-site root inoculations on eggplant with microsclerotia ofVerticillium dahliae

Cited by 8 publications

References 23 publications

Effect of solarization with fresh chicken manure on verticillium wilt (Verticillium dahliae Klebb) and yield in eggplant

Effect of solarization with fresh chicken manure on verticillium wilt (Verticillium dahliae Klebb) and yield in eggplant

Diversity, Pathogenicity, and Management of Verticillium Species

Revisión de antecedentes, presencia, incidencia, severidad, frecuencia de agentes asociados y mermas de rendimiento para “rama seca” del olivo en la provincia de La Rioja

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