Biological characteristics and fungicide sensitivity of Pyricularia variabilis

In recent years, the pathogen that causes leaf blast on Amomum tsao-ko repeatedly infected the plants in a large area of Luchun County, Honghe Prefecture, Yunnan Province, China. The disease is caused by the pathogen Pyricularia variabilis. The effects of light, temperature, pH, carbon, and nitrogen...

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Autores principales:	Zhang Yiming, Wu Tingguan, He Yonghong
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	amomum tsao-ko leaf blast mycelial growth pyricularia variabilis plant disease Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/2d6e53dab4e6458495794c66346eff37
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spelling	oai:doaj.org-article:2d6e53dab4e6458495794c66346eff372021-12-05T14:10:41ZBiological characteristics and fungicide sensitivity of Pyricularia variabilis2391-541210.1515/biol-2021-0095https://doaj.org/article/2d6e53dab4e6458495794c66346eff372021-09-01T00:00:00Zhttps://doi.org/10.1515/biol-2021-0095https://doaj.org/toc/2391-5412In recent years, the pathogen that causes leaf blast on Amomum tsao-ko repeatedly infected the plants in a large area of Luchun County, Honghe Prefecture, Yunnan Province, China. The disease is caused by the pathogen Pyricularia variabilis. The effects of light, temperature, pH, carbon, and nitrogen sources on the growth of the pathogen were determined, and its sensitivity to six fungicides was determined using the mycelial growth rate method. The optimal conditions for mycelial growth were as follows: temperature: 20–25°C; carbon source: maltose, nitrogen source beef extract, media corn flour, and potato dextrose agar. The mycelia could grow under four types of light conditions: 24 h light, 24 h dark, 12 h light/12 h dark, and 16 h light/8 h dark. In addition, Propiconazole was the most effective inhibitor, with an EC50 value of 0.030 μg/mL, and prochloraz was the second most effective, with an EC50 value of 0.076 μg/mL. It is suggested that the two fungicides should be alternated when used in production. Carbendazim and chlorothalonil were ineffective in inhibiting the fungus, with EC50 values of 6.137 and 3.765 μg/mL, respectively.Zhang YimingWu TingguanHe YonghongDe Gruyterarticleamomum tsao-koleaf blastmycelial growthpyricularia variabilisplant diseaseBiology (General)QH301-705.5ENOpen Life Sciences, Vol 16, Iss 1, Pp 950-960 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	amomum tsao-ko leaf blast mycelial growth pyricularia variabilis plant disease Biology (General) QH301-705.5
spellingShingle	amomum tsao-ko leaf blast mycelial growth pyricularia variabilis plant disease Biology (General) QH301-705.5 Zhang Yiming Wu Tingguan He Yonghong Biological characteristics and fungicide sensitivity of Pyricularia variabilis
description	In recent years, the pathogen that causes leaf blast on Amomum tsao-ko repeatedly infected the plants in a large area of Luchun County, Honghe Prefecture, Yunnan Province, China. The disease is caused by the pathogen Pyricularia variabilis. The effects of light, temperature, pH, carbon, and nitrogen sources on the growth of the pathogen were determined, and its sensitivity to six fungicides was determined using the mycelial growth rate method. The optimal conditions for mycelial growth were as follows: temperature: 20–25°C; carbon source: maltose, nitrogen source beef extract, media corn flour, and potato dextrose agar. The mycelia could grow under four types of light conditions: 24 h light, 24 h dark, 12 h light/12 h dark, and 16 h light/8 h dark. In addition, Propiconazole was the most effective inhibitor, with an EC50 value of 0.030 μg/mL, and prochloraz was the second most effective, with an EC50 value of 0.076 μg/mL. It is suggested that the two fungicides should be alternated when used in production. Carbendazim and chlorothalonil were ineffective in inhibiting the fungus, with EC50 values of 6.137 and 3.765 μg/mL, respectively.
format	article
author	Zhang Yiming Wu Tingguan He Yonghong
author_facet	Zhang Yiming Wu Tingguan He Yonghong
author_sort	Zhang Yiming
title	Biological characteristics and fungicide sensitivity of Pyricularia variabilis
title_short	Biological characteristics and fungicide sensitivity of Pyricularia variabilis
title_full	Biological characteristics and fungicide sensitivity of Pyricularia variabilis
title_fullStr	Biological characteristics and fungicide sensitivity of Pyricularia variabilis
title_full_unstemmed	Biological characteristics and fungicide sensitivity of Pyricularia variabilis
title_sort	biological characteristics and fungicide sensitivity of pyricularia variabilis
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/2d6e53dab4e6458495794c66346eff37
work_keys_str_mv	AT zhangyiming biologicalcharacteristicsandfungicidesensitivityofpyriculariavariabilis AT wutingguan biologicalcharacteristicsandfungicidesensitivityofpyriculariavariabilis AT heyonghong biologicalcharacteristicsandfungicidesensitivityofpyriculariavariabilis
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Biological characteristics and fungicide sensitivity of Pyricularia variabilis

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