First report of <i>Sclerotinia sclerotiorum</i> causing pod rot disease on okra in Bangladesh

Prova, Ananya; Akanda, Abdul Mannan; Islam, Shaikhul; Hossain, Md. Motaher

doi:10.1080/07060661.2017.1278723

Cited by 8 publications

(10 citation statements)

References 11 publications

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“…In Bangladesh, S. sclerotiorum was previously reported on hyacinth bean, marigold, jackfruit and okra ( Prova et al . , 2012 , 2014 , 2017 ; Rahman et al . , 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Characterization of Sclerotinia sclerotiorum, an Emerging Fungal Pathogen Causing Blight in Hyacinth Bean (Lablab purpureus)

et al. 2018

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“…In Bangladesh, S. sclerotiorum was previously reported on hyacinth bean, marigold, jackfruit and okra ( Prova et al . , 2012 , 2014 , 2017 ; Rahman et al . , 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Characterization of Sclerotinia sclerotiorum, an Emerging Fungal Pathogen Causing Blight in Hyacinth Bean (Lablab purpureus)

et al. 2018

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“…Although S. sclerotiorum has been reported to be the pathogen of the white mold of a pea in other countries [33,34], this is the first documented occurrence to our knowledge of a strain infecting pea in Bangladesh [9]. In Bangladesh, S. sclerotiorum was previously reported on hyacinth bean, jackfruit, and okra [10,17,28,34], implying that the pathogen has the potential to expanse to other host species.…”

Section: Discussionmentioning

confidence: 81%

“…Temperature and pH value of substrates have a strong influence on mycelial growth, cellular morphology, metabolite biosynthesis, and sclerotial formation of the fungus [18]. Equally, nitrogen and carbon resonate mycelial growth and sclerotial formation of the fungus and are considered as initial nutrient sources for infection, [19,10]. Knowledge of the environmental conditions conducive to S. sclerotiorum inoculum formation is essential for the successful management of white mold disease.…”

Section: Introductionmentioning

confidence: 99%

White Mold on Pea Caused by <em>Sclerotinia sclerotiorum</em>: A New Threat for Pea Cultivation in Bangladesh

Islam¹,

Prova²,

Rubayet³

et al. 2020

Preprint

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A new disease causing the tan to light brown blighted stems and pods has occurred in 2.6% pea (Pisum sativum L.) plants with an average disease severity rating of 3.7 in Chapainawabganj district, Bangladesh. A fungus with white appressed mycelia and large sclerotia was consistently isolated from symptomatic tissues. The fungus formed funnel-shaped apothecia with sac-like ascus and endogenously formed ascospores. Healthy pea plants inoculated with the fungus produced typical white mold symptoms. The internal transcribed spacer sequences of the fungus were 100% similar to that recovered from an epitype of Sclerotinia sclerotiorum, considering the fungus to be the causative agent of white mold. Mycelial growth and sclerotial development of S. sclerotiorum were favored at 20°C and pH 5.0. Glucose was the best carbon sources to support hyphal growth and sclerotia formation. Bavistin and Amistar Top inhibited the radial growth of the fungus completely at the lowest concentration. In planta, foliar application of Amistar Top showed the considerable potential to control the disease at 1.0% concentration until 7 days after spraying, while Bavistin prevented infection significantly until 15 days after spraying. A large majority (70.93%) of genotypes including tested released pea cultivars were susceptible, while six genotypes (6.98%) appeared resistant to the disease. These results could be important for management strategies aiming to control the incidence of S. Sclerotinia and eliminate yield loss in pea.

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“…White mold caused by S. sclerotiorum is an important disease with higher incidences on many cultivated crops [10]. The disease has a worldwide occurrence and causes significant yield loss.…”

Section: Introductionmentioning

confidence: 99%

“…In canola, yield is reported to be reduced by 0.5% (equivalent to 12.75 kg/ha) for every 1% increment in Sclerotinia stem rot disease [14]. S. sclerotiorum has an extensive dispersal in many countries, infecting more than 400 plants such as beans, okra, potato, sunflower, soybean, marigold, pea, and jackfruit [10,15–17]. The pathogen infects all aboveground plant parts such as stems, leaves, flowers, and pods, producing prominent black sclerotia within the mycelium and in cavities of infected plant parts.…”

Section: Introductionmentioning

confidence: 99%

First characterization of a newly emerging phytopathogen, Sclerotinia sclerotiorum causing white mold in pea

2021

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Pea (Pisum sativum L.) is of global importance as a food crop for its edible pod and seed. A new disease causing the tan to light brown blighted stems and pods has occurred in pea (P. sativum L.) plants in Chapainawabganj district, Bangladesh. A fungus with white‐appressed mycelia and large sclerotia was consistently isolated from symptomatic tissues. The fungus formed funnel‐shaped apothecia with sac‐like ascus and endogenously formed ascospores. Healthy pea plants inoculated with the fungus produced typical white mold symptoms. The internal transcribed spacer sequences of the fungus were 100% similar to Sclerotinia sclerotiorum, considering the fungus to be the causative agent of white mold disease in pea, which was the first record in Bangladesh. Mycelial growth and sclerotial development of S. sclerotiorum were favored at 20°C and pH 5.0. Glucose was the best carbon source to support hyphal growth and sclerotia formation. Bavistin and Amistar Top inhibited the radial growth of the fungus completely at the lowest concentration. In planta, foliar application of Amistar Top showed the considerable potential to control the disease at 1.0% concentration until 7 days after spraying, while Bavistin prevented infection significantly until 15 days after spraying. A large majority (70.93%) of genotypes, including tested released pea cultivars, were susceptible, while six genotypes (6.98%) appeared resistant to the disease. These results on identification, characterization, host resistance, and fungicidal control of white mold could be valuable to achieve improved management of a new disease problem for pea cultivation.

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First report of Sclerotinia sclerotiorum causing pod rot disease on okra in Bangladesh

Cited by 8 publications

References 11 publications

Characterization of Sclerotinia sclerotiorum, an Emerging Fungal Pathogen Causing Blight in Hyacinth Bean (Lablab purpureus)

Characterization of Sclerotinia sclerotiorum, an Emerging Fungal Pathogen Causing Blight in Hyacinth Bean (Lablab purpureus)

White Mold on Pea Caused by <em>Sclerotinia sclerotiorum</em>: A New Threat for Pea Cultivation in Bangladesh

First characterization of a newly emerging phytopathogen, Sclerotinia sclerotiorum causing white mold in pea

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