First Report of <i>Sclerotium rolfsii</i> Causing Southern Blight of <i>Bletilla</i> Orchid in China

Yu, Lin; Zhou, Shijiao; Nie, Qian-wen; Hsiang, Tom; Zhang, K.; Sun, Zhengxiang; Zhou, Yi

doi:10.1094/pdis-08-18-1370-pdn

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…by analyzing the ITS and LSU sequence has also been reported by Xu et al (2010). Molecular characterization of S. rolfsii by ITS sequencing has previously been reported in many other crops (Mahadevakumar et al 2015(Mahadevakumar et al , 2016Yu et al 2019;Paul et al 2021).…”

Section: Discussionmentioning

confidence: 68%

“…along with traditional methods have given positive results, allowing human consumption and inclusion of faba beans in various novel food products (Rahate et al 2021). Besides the human consumption, faba bean is also used as animal and poultry feed in Europe, China Ethiopia, Egypt and many other countries in the world (Jensen et al 2010;Crépon et al 2010;Belete et al 2013;Zhang et al 2019). In Bangladesh this crop grown in northern and middle part of the country as pulse crop for human consumption (Yasmin et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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First occurrence of Sclerotium rolfsii associated with collar and root rot disease of faba bean and its in vitro chemical control

Paul

Gupta

Mahapatra

et al. 2022

Preprint

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Faba bean (Vicia faba L.), a promising grain legume, widely grown in central and northern part of Bangladesh. Disease symptoms resembling to collar and root rot was observed in an experimental field of Bangladesh Agricultural University, Mymensingh, Bangladesh. Disease incidence was ranged between 11–19%. Water-soaked sunken lesions were appeared on the collar region followed by the expansion of rotten areas along with white mycelial mass. The associated pathogen was isolated and identified as Sclerotium rolfsii (Teleomorph: Athelia rolfsii) based on the morphological characteristics and sequence analysis of ITS regions. The isolates grew well in both PDA and OMA media but optimum radial growth (3.31 cm/day) was observed in PDA media. The optimum temperature and pH for radial growth were 30°C and 7.0, respectively. Host range assay revealed that S. rolfsii isolates were strongly virulent to several other important crops such as tomato, brinjal chili, pea and chick pea indicating its potential threat to future agricultural production. Although the isolates were sensitive to Amistar Top, Score and Provax fungicides but Provax was more effective to inhibit the mycelial growth of S. rolfsii at 10 ppm. To best of our knowledge, this is the first confirmed report of S. rolfsii causing collar rot of faba bean in Bangladesh and their in vitro chemical control.

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Section: Discussionmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

First occurrence of Sclerotium rolfsii associated with collar and root rot disease of faba bean and its in vitro chemical control

Paul

Gupta

Mahapatra

et al. 2022

Preprint

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“…by analyzing the ITS and LSU sequence. Molecular characterization of A. rolfsii by ITS and EF1-α sequencing has previously been reported in many other crops [ 12 , 20 , [44] , [45] , [46] ].…”

Section: Discussionmentioning

confidence: 99%

Morpho-molecular, cultural and pathological characterization of Athelia rolfsii causing southern blight disease on common bean

Paul

Gupta

Mahapatra

et al. 2023

Heliyon

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“…f) Andrews), cotton ( Gossypium hirsutum L.), pumpkin ( Cucurbita maxima Duchesne), wild coffee ( Psychotria nervosa Sw.) and many other host plants (Mahadevakumar, Tejaswini, Shilpa, et al, 2015; Mahadevakumar, Tejaswini, Yadav, et al, 2015; Mahadevakumar, Chandana, et al, 2018; Mahadevakumar & Janardhana, 2015, 2016). It is also reported to cause disease on orchids (epiphytic plant) (Yu et al, 2019) and on other economically important crops (Cer & Morca, 2020). The pathogen is soil‐borne, and the inoculum persists in the soil for up to three years and causes new infection as the crop emerges in the next season (Aycock, 1966; Punja, 1985; Smith et al, 1989).…”

Section: Discussionmentioning

confidence: 99%

Molecular detection and pathological investigations on southern blight disease caused by Sclerotium rolfsii on cabbage (Brassica oleracea var. capitata): A new record in India

Tejaswini

Mahadevakumar

Sowmya

et al. 2022

Journal of Phytopathology

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A severe outbreak of foot rot and head rot disease of cabbage was observed during September 2017 to November 2019 in major cabbage growing regions of southern Karnataka state of India. The disease incidence ranged between 3% and 28%. The initial symptoms were observed as tan, water‐soaked lesions at the point of infection and development of mycelia, followed by quick wilting of the whole plant. Subsequently, numerous sclerotia were produced. The pathogen isolated on PDA medium produced white fluffy aerial mycelia and numerous reddish‐brown sclerotia after 7−10 days. A total of 18 fungal isolates were used for mycelial compatibility analysis. Isolate SrBoC28 was used to test for pathogenicity on cabbage, marigold, chilli and brinjal plants. Typical disease symptoms on leaves, stem and roots were evident 5, 8 and 10 days’ post‐inoculation respectively. The isolate was pathogenic on all tested hosts, and the identity was confirmed by re‐isolation and morpho‐cultural and molecular studies. The latter were based on amplification of ITS‐rDNA and phylogenetic analysis which showed 100% sequence similarity with reference sequences. The identity was confirmed as S. rolfsii. This is a well‐known pathogen and causes disease on various economically important crop plants. To date, there are no reports on the association between S. rolfsii and foot and head rot disease of cabbage in India and elsewhere. Thus, to the best of our knowledge, this is the first report of foot rot and head rot of cabbage caused by S. rolfsii in India.

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First Report of Sclerotium rolfsii Causing Southern Blight of Bletilla Orchid in China

Cited by 8 publications

References 2 publications

First occurrence of Sclerotium rolfsii associated with collar and root rot disease of faba bean and its in vitro chemical control

First occurrence of Sclerotium rolfsii associated with collar and root rot disease of faba bean and its in vitro chemical control

Morpho-molecular, cultural and pathological characterization of Athelia rolfsii causing southern blight disease on common bean

Molecular detection and pathological investigations on southern blight disease caused by Sclerotium rolfsii on cabbage (Brassica oleracea var. capitata): A new record in India

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