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First report of leaf blight and petiole rot of carrot caused by Rhizoctonia solani AG-1 IB

Abstract

Carrot plants with leaf blight and petiole rot were found in Hokkaido, Japan, in September 2016. The causal fungus, identified as Rhizoctonia solani anastomosis group (AG)-1 IB, caused leaf blight and petiole rot on carrot but not root rot in inoculation tests. We also confirmed that it can be discriminated on the basis of symptoms and pathogenicity from the pathogen R. solani AG-2-2 IV, which causes carrot root rot. This is the first report of leaf blight and petiole rot of carrot caused by R. solani AG-1 IB.

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References

  • Carling DE (1996) Grouping in Rhizoctonia solani by hyphal anastomosis reaction. In: Sneh B, Jabaji-Hare S, Neate S, Dijst G (eds) Rhizoctonia species: taxonomy, molecular biology, ecology, pathology and disease control. Kluwer, Dordrecht, pp 37–47

    Google Scholar 

  • Kuninaga S (2003) Current situation of the taxonomy of Rhizoctonia solani (in Japanese). Plant Prot 57:219–222

    Google Scholar 

  • Martin B (1987) Rapid tentative identification of Rhizoctonia spp. associated with diseased turfgrasses. Plant Dis 71:47–49

    Article  Google Scholar 

  • Misawa T, Komatsu T, Tsuji H (2013) Damping-off of carrot caused by Rhizoctonia solani AG-1 IC (in Japanese with English summary). Annu Rept Plant Prot North Jpn 64:76–80

    Google Scholar 

  • Misawa T, Kubota M, Sasaki J, Kuninaga S (2015) First report of broccoli foot rot caused by Rhizoctonia solani AG-2-2 IV and pathogenicity comparison of the pathogen with related pathogens. J Gen Plant Pathol 81:15–23

    Article  Google Scholar 

  • Misawa T, Kurose D, Kuninaga S (2017) First report of leaf sheath rot of Welsh onion caused by nine taxa of Rhizoctonia spp. and characteristics of the pathogens. J Gen Plant Pathol 83:121–130

    Article  CAS  Google Scholar 

  • Mori M, Misawa T, Sato T (2020) First report of stem and root rot of monkshood caused by Rhizoctonia spp. in Japan. J Gen Plant Pathol 86:224–226

    Article  CAS  Google Scholar 

  • Nagai Y, Fukatsu R (1971) Root rot symptom of carrot caused by Rhizoctonia solani (abstract in Japanese). Ann Phytopathol Soc Jpn 37:369

    Google Scholar 

  • Ogoshi A (1976) Studies on the grouping of Rhizoctonia solani Kühn with hyphal anastomosis and on the perfect stages of groups (in Japanese with English summary). Bull Nat Inst Agric Sci Ser C 30:1–63

    Google Scholar 

  • Ogoshi A (1987) Ecology and pathogenicity of anastomosis and intraspecific groups of Rhizoctonia solani Kühn. Annu Rev Phytopathol 25:125–143

    Article  Google Scholar 

  • Watanabe B, Matsuda A (1966) Studies on grouping Rhizoctonia solani Kühn pathogenic to upland crops (in Japanese with English summary). Bull Appoint Exp 7:1–131

    Google Scholar 

  • Yamauchi N, Sato F, Shirakawa T (2012) Seedling damping-off of carrot caused by Rhizoctonia solani AG-4 HG-I (in Japanese with English summary). Annu Rep Kanto-Tosan Plant Prot Soc 59:19–21

    Google Scholar 

  • Yonemoto K, Hirota K, Hyakumachi M (2008) Seedling damping-off of carrot caused by Rhizoctonia solani AG-4 HG-II (in Japanese with English summary). Jpn J Phytopathol 74:20–23

    Article  Google Scholar 

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Acknowledgments

We thank Dr. M. Kubota (Institute of Vegetable and Floriculture Science, NARO) for his support.

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Correspondence to Manami Mori.

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Mori, M., Bannai, T. & Misawa, T. First report of leaf blight and petiole rot of carrot caused by Rhizoctonia solani AG-1 IB. J Gen Plant Pathol 87, 42–45 (2021). https://doi.org/10.1007/s10327-020-00966-8

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  • DOI: https://doi.org/10.1007/s10327-020-00966-8

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