Advances in Food Mycology

Hocking, Ailsa D.; Pitt, John I.; Samson, Robert A.; Thrane, Ulf

doi:10.1007/0-387-28391-9

Cited by 36 publications

(1 citation statement)

References 367 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, chemical pesticides are not always equally effective against B. sorokiniana and all Fusarium species. Moreover, fungicidal treatments sometimes stimulate mycotoxin production in Fusaria [13,28], and herbicide application can lead to the increased colonization of wheat and barley plants or crop residues by these fungi [29]. Crop rotation alone can be ineffective or even increase the risk of FCR and Fusarium head blight development [30].…”

Section: Introductionmentioning

confidence: 99%

An Extract Purified from the Mycelium of a Tomato Wilt-Controlling Strain of Fusarium sambucinum Can Protect Wheat against Fusarium and Common Root Rots

et al. 2018

View full text Add to dashboard Cite

An approach to manage seed-transmitted Fusarium crown-foot-root rot (FCR, Fusarium spp.) and common root rot (CRR, Bipolaris sorokiniana) on wheat, avoiding environmental risks of chemicals, is seed treatments with microbial metabolites. F. sambucinum strain FS-94 that induces resistance to tomato wilt was shown by this study to be a source of non-fungitoxic wheat-protecting metabolites, which were contained in a mycelium extract purified by gel-chromatography and ultrafiltration. Plant-protecting effect of the purified mycelial extract (PME) was demonstrated in vegetation experiments using a rolled-towel assay and by small-plot field trials. To elucidate mechanisms putatively underlying PME protective activity, tests with cultured Triticum aestivum and T. kiharae cells, particularly the extracellular alkalinization assay, as well as gene expression analysis in germinated wheat seeds were used. Pre-inoculation treatments of seeds with PME significantly decreased the incidence (from 30 to 40%) and severity (from 37 to 50%) of root rots on seedlings without any inhibition of the seed germination and potentiation of deoxynivalenol (DON), DON monoacetylated derivatives and zearalenon production in FCR agents. In vegetation experiments, reductions in the DON production were observed with doses of 0.5 and 1 mg/mL of PME. Pre-sowing PME application on seeds of two spring wheat cultivars naturally infected with FCR and CRR provided the mitigation of both diseases under field conditions during four growing seasons (2013–2016). PME-induced ion exchange response in cultured wheat cells, their increased survivability, and up-regulated expression of some defensins’ genes in PME-exposed seedlings allow the suggestion of the plant-mediated character of disease-controlling effect observed in field.

show abstract

Section: Introductionmentioning

confidence: 99%