The ilv2 gene, encoding acetolactate synthase for branched chain amino acid biosynthesis, is required for plant pathogenicity by Leptosphaeria maculans.
Mol Biol Rep
; 51(1): 682, 2024 May 25.
Article
en En
| MEDLINE
| ID: mdl-38796647
ABSTRACT
BACKGROUND:
Control of blackleg disease of canola caused by the fungus Leptosphaeria maculans relies on strategies such as the inhibition of growth with fungicides. However, other chemicals are used during canola cultivation, including fertilizers and herbicides. There is widespread use of herbicides that target the acetolactate synthase (ALS) enzyme involved in branched chain amino acid synthesis and low levels of these amino acids within leaves of Brassica species. In L. maculans the ilv2 gene encodes ALS and thus ALS-inhibiting herbicides may inadvertently impact the fungus. METHODS ANDRESULTS:
Here, the impact of a commercial herbicide targeting ALS and mutation of the homologous ilv2 gene in L. maculans was explored. Exposure to herbicide had limited impact on growth in vitro but reduced lesion sizes in plant disease experiments. Furthermore, the mutation of the ilv2 gene via CRISPR-Cas9 gene editing rendered the fungus non-pathogenic.CONCLUSION:
Herbicide applications can influence disease outcome, but likely to a minor extent.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Acetolactato Sintasa
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Enfermedades de las Plantas
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Leptosphaeria
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Aminoácidos de Cadena Ramificada
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Herbicidas
Idioma:
En
Revista:
Mol Biol Rep
/
Mol. Biol. reports
/
Molecular biology reports
Año:
2024
Tipo del documento:
Article
País de afiliación:
Australia