First report of Athelia rolfsii (Sclerotium rolfsii Sacc.) causing collar rot disease on sunflower in Turkey

Cer, Ceren; Uysal-Morca, Ayşe

doi:10.1007/s42161-020-00512-7

Cited by 7 publications

(3 citation statements)

References 2 publications

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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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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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“…The production of pectolytic enzymes enhances tissue penetration by the pathogen and this causes rapid deterioration of the host outer cell layer. These enzymes in conjunction with the production of oxalic acid, an exogenous nonspecific metabolite, are important determinants of its pathogenicity status and carbohydrate metabolism (Cer & Morca, 2020). The soilborne fungus thrives in soil organic matter which increases the multiplication rate and disease development (Paul et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity of Sclerotium rolfsii Isolates Causing Stem and Root Rot Disease of Cowpea Vigna unguiculata (L.) Walp and Management Using Trichoderma Species

Dania

Henry

2022

Agrivita.J.Agr.Sci

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Sclerotium rolfsii is a soil-borne pathogen causing stem and root rot disease with concomitant reduction in growth and yield of cowpea. Therefore, this study evaluated pathogenicity of S. rolfsii isolates and the management of root and stem rot disease using Trichoderma species. The isolates were obtained from cowpea rhizosphere and pathogenicity was determined using a susceptible cowpea genotype ITI0K–815-5 in an experiment arranged in a completely randomized design with four replications. In vitro and in vivo trials of Trichoderma spp. against a selected virulent isolate Sclerotium rolfsii (SR06) were conducted in the laboratory and screenhouse, respectively. All nine S. rolfsii isolates were pathogenic to the cowpea genotype, while isolate SR 06 was the most virulent with 85.56% infectivity rate. Treatments with T. virens and T. atroviride application reduced the disease incidences to 22.2% and 25.3%, respectively, compared to synthetic funguforce fungicide. Plants that were inoculated and treated with T. atroviride had significantly higher yield of 435 kg/ha than other treatments (p<0.037). Findings from this research encourages the incorporation of Trichoderma species in the integrated management of S. rolfsii pathogen and the incidence of stem and root rot disease in cowpea.

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First report of Athelia rolfsii (Sclerotium rolfsii Sacc.) causing collar rot disease on sunflower in Turkey

Cited by 7 publications

References 2 publications

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

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

Pathogenicity of Sclerotium rolfsii Isolates Causing Stem and Root Rot Disease of Cowpea Vigna unguiculata (L.) Walp and Management Using Trichoderma Species

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