Back to Search
Start Over
In Vitro Assessment of Biocontrol Effects on Fusarium Head Blight and Deoxynivalenol (DON) Accumulation by DON-Degrading Bacteria
- Source :
- Toxins, Volume 12, Issue 6, Toxins, Vol 12, Iss 399, p 399 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- Fusarium head blight (FHB) of cereals is a severe disease caused by the Fusarium graminearum species complex. It leads to the accumulation of the mycotoxin deoxynivalenol (DON) in grains and other plant tissues and causes substantial economic losses throughout the world. DON is one of the most troublesome mycotoxins because it is a virulence factor to host plants, including wheat, and exhibits toxicity to plants and animals. To control both FHB and DON accumulation, a biological control approach using DON-degrading bacteria (DDBs) is promising. Here, we performed a disease control assay using an in vitro petri dish test composed of germinated wheat seeds inoculated with F. graminearum (Fg) and DDBs. Determination of both grown leaf lengths and hyphal lesion lengths as a measure of disease severity showed that the inoculation of seeds with the DDBs Devosia sp. strain NKJ1 and Nocardioides spp. strains SS3 or SS4 were protective against the leaf growth inhibition caused by Fg. Furthermore, it was as effective against DON accumulation. The inoculation with strains SS3 or SS4 also reduced the inhibitory effect on leaves treated with 10 &micro<br />g mL&minus<br />1 DON solution (without Fg). These results indicate that the DDBs partially suppress the disease by degrading DON.
- Subjects :
- Devosia
Fusarium
Hypha
Health, Toxicology and Mutagenesis
Trichothecene
trichothecene
deoxynivalenol
lcsh:Medicine
Nocardioides
Germination
Biology
Toxicology
Article
03 medical and health sciences
chemistry.chemical_compound
biocontrol
Mycotoxin
Pest Control, Biological
Triticum
Fusarium graminearum
030304 developmental biology
Plant Diseases
0303 health sciences
phytotoxin
030306 microbiology
Inoculation
lcsh:R
fungi
mycotoxin degradation
food and beverages
Phytotoxin
biology.organism_classification
Plant Leaves
Horticulture
chemistry
Seeds
Edible Grain
Trichothecenes
Bacteria
Subjects
Details
- Language :
- English
- ISSN :
- 20726651
- Database :
- OpenAIRE
- Journal :
- Toxins
- Accession number :
- edsair.doi.dedup.....a7e9876a7ee77efba23cc2ccc9fdedd0
- Full Text :
- https://doi.org/10.3390/toxins12060399