High-efficient production of mushroom polyketide compounds in a platform host Aspergillus oryzae.
Aspergillus oryzae
Basidiomycetes
Orsellinic acid
Polyketide synthase
o-Orsellinaldehyde
Journal
Microbial cell factories
ISSN: 1475-2859
Titre abrégé: Microb Cell Fact
Pays: England
ID NLM: 101139812
Informations de publication
Date de publication:
30 Mar 2023
30 Mar 2023
Historique:
received:
28
11
2022
accepted:
24
03
2023
medline:
3
4
2023
entrez:
30
3
2023
pubmed:
31
3
2023
Statut:
epublish
Résumé
Orsellinic acid (2,4-dihydroxy-6-methylbenzoic acid, OA) and its structural analog o-Orsellinaldehyde, have become widely used intermediates in clinical drugs synthesis. Although the research on the biosynthesis of such compounds has made significant progress, due to the lack of suitable hosts, there is still far from the industrial production of such compounds based on synthetic biology. With the help of genome mining, we found a polyketide synthase (PKS, HerA) in the genome of the Hericium erinaceus, which shares 60% amino acid sequence homology with ArmB from Armillaria mellea, an identified PKS capable of synthesizing OA. To characterize the function of HerA, we cloned herA and heterologously expressed it in Aspergillus oryzae, and successfully detected the production of OA. Subsequently, the introduction of an incomplete PKS (Pks5) from Ustilago maydis containing only three domains (AMP-ACP-R), which was into herA-containing A. oryzae, the resulted in the production of o-Orsellinaldehyde. Considering the economic value of OA and o-Orsellinaldehyde, we then optimized the yield of these compounds in A. oryzae. The screening showed that when maltose was used as carbon source, the yields of OA and o-Orsellinaldehyde were 57.68 mg/L and 15.71 mg/L respectively, while the yields were 340.41 mg/Kg and 84.79 mg/Kg respectively in rice medium for 10 days. Herein, we successfully expressed the genes of basidiomycetes using A. oryzae heterologous host. As a fungus of ascomycetes, which not only correctly splices genes of basidiomycetes containing multiple introns, but also efficiently produces their metabolites. This study highlights that A. oryzae is an excellent host for the heterologous production of fungal natural products, and has the potential to become an efficient chassis for the production of basidiomycete secondary metabolites in synthetic biology.
Sections du résumé
BACKGROUND
BACKGROUND
Orsellinic acid (2,4-dihydroxy-6-methylbenzoic acid, OA) and its structural analog o-Orsellinaldehyde, have become widely used intermediates in clinical drugs synthesis. Although the research on the biosynthesis of such compounds has made significant progress, due to the lack of suitable hosts, there is still far from the industrial production of such compounds based on synthetic biology.
RESULTS
RESULTS
With the help of genome mining, we found a polyketide synthase (PKS, HerA) in the genome of the Hericium erinaceus, which shares 60% amino acid sequence homology with ArmB from Armillaria mellea, an identified PKS capable of synthesizing OA. To characterize the function of HerA, we cloned herA and heterologously expressed it in Aspergillus oryzae, and successfully detected the production of OA. Subsequently, the introduction of an incomplete PKS (Pks5) from Ustilago maydis containing only three domains (AMP-ACP-R), which was into herA-containing A. oryzae, the resulted in the production of o-Orsellinaldehyde. Considering the economic value of OA and o-Orsellinaldehyde, we then optimized the yield of these compounds in A. oryzae. The screening showed that when maltose was used as carbon source, the yields of OA and o-Orsellinaldehyde were 57.68 mg/L and 15.71 mg/L respectively, while the yields were 340.41 mg/Kg and 84.79 mg/Kg respectively in rice medium for 10 days.
CONCLUSIONS
CONCLUSIONS
Herein, we successfully expressed the genes of basidiomycetes using A. oryzae heterologous host. As a fungus of ascomycetes, which not only correctly splices genes of basidiomycetes containing multiple introns, but also efficiently produces their metabolites. This study highlights that A. oryzae is an excellent host for the heterologous production of fungal natural products, and has the potential to become an efficient chassis for the production of basidiomycete secondary metabolites in synthetic biology.
Identifiants
pubmed: 36998045
doi: 10.1186/s12934-023-02071-9
pii: 10.1186/s12934-023-02071-9
pmc: PMC10064546
doi:
Substances chimiques
o-orsellinaldehyde
15U7JE2JVK
Polyketides
0
Catechols
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
60Subventions
Organisme : National Natural Science Foundation of China
ID : 31800031
Organisme : National Natural Science Foundation of China
ID : U22A20369
Organisme : Natural Science Foundation from Shandong Province
ID : ZR2022QC186
Organisme : Key innovation Project of the Qilu University of Technology (Shandong Academy of Sciences)
ID : 2022JBZ01-06
Organisme : Innovation & Development Joint Fund of Natural Science Foundation from Shandong Province
ID : ZR2021LSW022
Informations de copyright
© 2023. The Author(s).
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