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Spent pleurotus ostreatus substrate has potential for managing Fusarium Wilt of Banana

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Title Spent pleurotus ostreatus substrate has potential for managing Fusarium Wilt of Banana
 
Creator Ocimati, Walter
Were, Evans M.
Tazuba, Anthony Fredrick Kadama
Dita Rodriguez, Miguel Angel
Zheng, Si-Jun
Blomme, Guy
 
Subject basidiomycota
biological control
pathogens
metabolites
fusarium oxysporum
control biológico
organismos patógenos
 
Description A range of basidiomycetes including the edible mushroom Pleurotus ostreatus (Po) can suppress plant pathogens such as Fusarium spp. With the current increase in production and
consumption of Po in Uganda, the spent Po substrate (SPoS) could be an alternative to manage Fusarium wilt of banana (FWB), caused by the soil borne pathogen Fusarium oxysporum f. sp. cubense, race 1 (Foc). This study determined the potential of SPoS to inhibit Foc in vitro and in potted plants. In vitro studies confirmed suppression of Foc in pure co-culture (Po vs. Foc) assays and media amended with different concentrations (0% to 50% w/v) of un-sterilized SPoS filtrates. Foc growth in the sterile SPoS filtrate was comparable to the water control, suggesting possible roles of biotic or thermolabile components of the SPoS. To further verify the suppressive effects of SPoS, pot experiments were carried out with a resistant (‘Mbwazirume’, AAA) and susceptible (‘Sukali Ndizi’, AAB) banana cultivar using both artificially and naturally infested soils. Independent of the inoculation method, SPoS significantly reduced the severity of FWB in pot experiments. Susceptible cultivar ‘Sukali Ndizi’ growing in substrates amended with SPoS showed lower (1.25) corm damage (Scale 0–5) than the un-amended control (3.75). No corm damage was observed in uninoculated controls. The resistant cultivar ‘Mbwazirume’, showed slight (0.25) corm damage only in the Foc-inoculated plants without SPoS. These findings suggest that SPoS could be used as part of the management practices to reduce the impact of FWB.
 
Date 2021-11-09
2021-12-03T15:02:07Z
2021-12-03T15:02:07Z
 
Type Journal Article
 
Identifier Ocimati, W.; Were, E.; Tazuba, A.F.; Dita, M.; Zheng, S.-J.; Blomme, G. (2021) Spent pleurotus ostreatus substrate has potential for managing Fusarium Wilt of Banana. Journal of Fungi 7(11): 946. ISSN: 2309-608X
2309-608X
https://hdl.handle.net/10568/116504
https://doi.org/10.3390/jof7110946
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher MDPI AG
 
Source Journal of Fungi