Macrophomina phaseolina: density and longevity of microsclerotia in soybean root tissues and free on the soil, and competitive saprophytic ability

Reis, Erlei Melo; Boaretto, Cristiane; Danelli, Anderson Luiz Durante

doi:10.1590/0100-5405/1921

Cited by 21 publications

(11 citation statements)

References 17 publications

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“…Macrophomina phaseolina (Tassi) Goid., the fungus causing charcoal rot infects more than 500 plant species, including some of the world's most important crops such as soybean, cotton and corn (Su et al 2001;Gupta et al 2012). In Brazil, charcoal rot is common and it is considered one of the most prevalent disease problems of soybean (Reis et al 2014).…”

mentioning

confidence: 99%

Pathogenicity and aggressiveness of Macrophomina phaseolina isolates to castor (Ricinus communis)

Claudino¹,

Soares²

2014

Trop. plant pathol.

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Charcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of castor (Ricinus communis) in the growing regions of Northeastern Brazil, particularly in the State of Bahia, which concentrates 65% of the country's production. The pathogenicity and aggressiveness of the charcoal rot pathogen was assessed in twenty-seven isolates of M. phaseolina obtained from six plant species: Ricinus communis (n=21), Gossypium hirsutum (n=2), Sesamum indicum (n=1), Helianthus annuus (n=1), Jatropha gossypifolia (n=1) and Arachis hypogaea (n=1). All isolates were pathogenic and exhibited a range of aggressiveness towards BRS Energia cultivar regardless of their host of origin.

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mentioning

confidence: 99%

Pathogenicity and aggressiveness of Macrophomina phaseolina isolates to castor (Ricinus communis)

Claudino¹,

Soares²

2014

Trop. plant pathol.

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“…Macrophomina phaseolina has been reported to be an opportunistic pathogen that may become severe in plants growing in soils with low fertility or growing under water stress with high soil temperatures (Barnard, 1994). The M. phaseolina pathogen survives and spreads more efficiently in dry soils and in plant debris (Dingra and Sinclair, 1975;Islam et al, 2012;Papavizas, 1977;Reis et al, 2014;Short et al, 1980). Environmental conditions that favor M. phaseolina such as low moisture and high temperature are likely to occur repeatedly during field production period and in landscape plantings, thereby escalating the impact of this disease in flowering dogwood.…”

Section: Resultsmentioning

confidence: 99%

Flowering Dogwood Infections with Macrophomina phaseolina

Mmbaga¹,

Mackasmiel²,

Mrema³

2018

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Macrophomina phaseolina was isolated from the crown region and roots of mature flowering dogwood (Cornus florida L.) trees in the landscape and nursery plantings. Although this pathogen has been reported in Cornus species, its occurrence and impact on C. florida has not been reported. Pathogenicity tests were conducted on dogwood seedlings, and all inoculated seedlings developed root necrotic lesions and no small lateral roots, whereas the non-inoculated control seedlings remained disease-free and developed numerous small roots. Seedlings inoculated with M. phaseolina exhibited numerous microsclerotia, but non-inoculated seedlings did not. In greenhouse experiments, plants inoculated on the stems near the soil line developed brown canker-like lesions and swellings around the inoculated area. These were not observed on non-inoculated plants.

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“…In a study, carried out on saprophytic colonization, M. phaseolina failed to colonize saprophytically on any dead tissues of Avena strigosa , Avena sativa , Hordeum vulgare , Brassica napus , Gossypium hirsutum , Secale cereal , Helianthus annus , Triticosecale rimpaui and Triticum aestivum , but was isolated from infected root tissues of Amaranthus viridis , Bidens pilosa , Cardiospermum halicacabum , Euphorbia heterophylla , Ipomoea sp. and Richardia brasiliensis (Reis, Boaretto, & Danelli, ).…”

Section: Amendmentsmentioning

confidence: 99%

“…Soybean planting dates did not affect the soil population density of M. phaseolina , but the differences in density among years were found to be significant (Wrather, Shannon, & Mengistu, ). In field experiments, the density of M. phaseolina microsclerotia in root tissues of naturally colonized soybean cultivars was quantified (Reis et al, ). The density of free sclerotia on the soil was determined for plots having crop rotation (soybean–corn) and soybean monoculture soon after soybean harvest.…”

Section: Cropping Systemmentioning

confidence: 99%

Population dynamics of Macrophomina phaseolina in relation to disease management: A review

Lodha

Mawar

2019

Journal of Phytopathology

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Macrophomina phaseolina (Tassi) Goid. causes seedling blight, charcoal rot, leaf blight, stem and pod rot on over 500 plant species in different parts of the world. The pathogen survives as sclerotia formed in host tissues which are released into the soil as tissue decay. Low soil moisture is considered the more important predisposing factor for M. phaseolina-induced diseases than high temperature. The intensity of the disease on a crop is related to the population of viable sclerotia in the soil and abiotic factors. The influence of various management strategies in reducing the number of viable propagules of the pathogen in the soil has been studied in order to minimize the impact of the disease. Any management approach that reduces inoculum density in the soil may reduce disease incidence on the host. However, to reduce inoculum density, quantitative determination of viable propagules from soil is necessary in order to understand the effect of management strategies on the population dynamics of this pathogen.Considerable work has been done on organic amendments, changing crop sequences with tolerant crops, fumigants, herbicides and tillage in managing M. phaseolina populations in the soil and the resulting disease. Solarization has been used in controlling M. phaseolina in different countries where this pathogen is causing disease on economically valuable crops. However, this method of soil disinfestation was effective in eliminating viable populations at the top soil layer although by combining other approaches its effectiveness was improved at lower soil depth. Use of biological control agents with or without organic amendments or after solarization has emerged to be a practical management approach in the control of M. phaseolina. In this paper, an attempt has been made to review those research findings where the influence of various management approaches on survival of M. phaseolina mainly sclerotia have been investigated.

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Macrophomina phaseolina: density and longevity of microsclerotia in soybean root tissues and free on the soil, and competitive saprophytic ability

Cited by 21 publications

References 17 publications

Pathogenicity and aggressiveness of Macrophomina phaseolina isolates to castor (Ricinus communis)

Pathogenicity and aggressiveness of Macrophomina phaseolina isolates to castor (Ricinus communis)

Flowering Dogwood Infections with Macrophomina phaseolina

Population dynamics of Macrophomina phaseolina in relation to disease management: A review

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