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Pathogens
Volume 8
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10.3390/pathogens8040227
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Open AccessArticle

Resistance Sources to Brown Blotch Disease (Pseudomonas tolaasii) in a Diverse Collection of Pleurotus Mushroom Strains

by
Benjamin Azu Okorley
1,2,
Frederick Leo Sossah
1,2,
Dan Dai
1,2,
Shuai Xu
1,2,
Zhenghui Liu
1,
Bing Song
1,2,
Hongyan Sheng
3,
Yongping Fu
1,2,* and
Yu Li
1,2,*
1
International Cooperation Research Center of China for New Germplasm and Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
2
Department of Plant Pathology, Jilin Agricultural University, Changchun 130118, China
3
Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA
*
Authors to whom correspondence should be addressed.
Pathogens 2019, 8(4), 227; https://doi.org/10.3390/pathogens8040227
Received: 11 October 2019 / Revised: 6 November 2019 / Accepted: 7 November 2019 / Published: 9 November 2019
(This article belongs to the Section Plant Pathogens)
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Abstract

Brown blotch disease (BBD) caused by Pseudomonas tolaasii is one of the most devastating diseases of Pleurotus spp. worldwide. Breeding for resistant strains is the most effective method for controlling BBD. To identify resistant germplasm for BBD management, 97 strains comprising 21 P. cf. floridanus, 20 P. ostreatus, and 56 P. pulmonarius were screened by two different methods; namely, inoculation of the pathogen on the mushroom pileus (IMP) and on the spawned substrate (IMSS) under controlled conditions. Out of the 97 strains screened, 22 P. pulmonarius, and four P. cf. floridanus were moderately resistant to BBD using the IMP method. Eleven P. pulmonarius, six P. cf. florida, and one P. ostreatus strains were highly resistant to BBD using the IMSS method. All of the 97 strains showed varying degrees of susceptibility using the IMP method, but eight strains were completely resistant using the IMSS method. Combining these two methods, five strains were highly resistant (four P. pulmonarius and one P. cf. floridanus) and 11 were moderately resistant (eight P. pulmonarius and three P. cf. floridanus). The resistance sources to P. tolaasii identified in P. pulmonarius and P. cf. floridanus could be used for further breeding of Pleurotus spp. View Full-Text
Keywords: brown blotch disease; Pseudomonas tolaasii; P. pulmonarius; P. cf. floridanus; P. ostreatus; mushroom; IMP; IMSS and resistance brown blotch disease; Pseudomonas tolaasii; P. pulmonarius; P. cf. floridanus; P. ostreatus; mushroom; IMP; IMSS and resistance
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MDPI and ACS Style

Azu Okorley, B.; Leo Sossah, F.; Dai, D.; Xu, S.; Liu, Z.; Song, B.; Sheng, H.; Fu, Y.; Li, Y. Resistance Sources to Brown Blotch Disease (Pseudomonas tolaasii) in a Diverse Collection of Pleurotus Mushroom Strains. Pathogens 2019, 8, 227. https://doi.org/10.3390/pathogens8040227

AMA Style

Azu Okorley B, Leo Sossah F, Dai D, Xu S, Liu Z, Song B, Sheng H, Fu Y, Li Y. Resistance Sources to Brown Blotch Disease (Pseudomonas tolaasii) in a Diverse Collection of Pleurotus Mushroom Strains. Pathogens. 2019; 8(4):227. https://doi.org/10.3390/pathogens8040227

Chicago/Turabian Style

Azu Okorley, Benjamin; Leo Sossah, Frederick; Dai, Dan; Xu, Shuai; Liu, Zhenghui; Song, Bing; Sheng, Hongyan; Fu, Yongping; Li, Yu. 2019. "Resistance Sources to Brown Blotch Disease (Pseudomonas tolaasii) in a Diverse Collection of Pleurotus Mushroom Strains" Pathogens 8, no. 4: 227. https://doi.org/10.3390/pathogens8040227

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