Protein Kinase PoxMKK1 Regulates Plant-Polysaccharide-Degrading Enzyme Biosynthesis, Mycelial Growth and Conidiation in Penicillium oxalicum
The ability to adapt to changing environmental conditions is crucial for living organisms, as it enables them to successfully compete in natural niches, a process which generally depends upon protein phosphorylation-mediated signaling transduction. In the present study, protein kinase PoxMKK1, an ortholog of mitogen-activated protein kinase kinase Ste7 in Saccharomyces cerevisiae, was identified and characterized in the filamentous fungus Penicillium oxalicum. Deletion of PoxMKK1 in P. oxalicum ΔPoxKu70 led the fungus to lose 64.4-88.6% and 38.0-86.1% of its plant-polysaccharide-degrading enzyme (PPDE) production on day 4 after a shift under submerged- and solid-state fermentation, respectively, compared with the control strain ΔPoxKu70. In addition, PoxMKK1 affected hypha growth and sporulation, though this was dependent on culture formats and carbon sources. Comparative transcriptomics and real-time quantitative reverse transcription PCR assay revealed that PoxMKK1 activated the expression of genes encoding major PPDEs, known regulatory genes (i.e., PoxClrB and PoxCxrB) and cellodextrin transporter genes (i.e., PoxCdtD and PoxCdtC), while it inhibited the essential conidiation-regulating genes, including PoxBrlA, PoxAbaA and PoxFlbD. Notably, regulons modulated by PoxMKK1 and its downstream mitogen-activated protein kinase PoxMK1 co-shared 611 differential expression genes, including 29 PPDE genes, 23 regulatory genes, and 16 sugar-transporter genes. Collectively, these data broaden our insights into the diverse functions of Ste7-like protein kinase, especially regulation of PPDE biosynthesis, in filamentous fungi.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:9 |
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| Enthalten in: |
Journal of fungi (Basel, Switzerland) - 9(2023), 4 vom: 23. März |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ma, Bo [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Revised 01.05.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/jof9040397 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM356124274 |
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| 245 | 1 | 0 | |a Protein Kinase PoxMKK1 Regulates Plant-Polysaccharide-Degrading Enzyme Biosynthesis, Mycelial Growth and Conidiation in Penicillium oxalicum |
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| 520 | |a The ability to adapt to changing environmental conditions is crucial for living organisms, as it enables them to successfully compete in natural niches, a process which generally depends upon protein phosphorylation-mediated signaling transduction. In the present study, protein kinase PoxMKK1, an ortholog of mitogen-activated protein kinase kinase Ste7 in Saccharomyces cerevisiae, was identified and characterized in the filamentous fungus Penicillium oxalicum. Deletion of PoxMKK1 in P. oxalicum ΔPoxKu70 led the fungus to lose 64.4-88.6% and 38.0-86.1% of its plant-polysaccharide-degrading enzyme (PPDE) production on day 4 after a shift under submerged- and solid-state fermentation, respectively, compared with the control strain ΔPoxKu70. In addition, PoxMKK1 affected hypha growth and sporulation, though this was dependent on culture formats and carbon sources. Comparative transcriptomics and real-time quantitative reverse transcription PCR assay revealed that PoxMKK1 activated the expression of genes encoding major PPDEs, known regulatory genes (i.e., PoxClrB and PoxCxrB) and cellodextrin transporter genes (i.e., PoxCdtD and PoxCdtC), while it inhibited the essential conidiation-regulating genes, including PoxBrlA, PoxAbaA and PoxFlbD. Notably, regulons modulated by PoxMKK1 and its downstream mitogen-activated protein kinase PoxMK1 co-shared 611 differential expression genes, including 29 PPDE genes, 23 regulatory genes, and 16 sugar-transporter genes. Collectively, these data broaden our insights into the diverse functions of Ste7-like protein kinase, especially regulation of PPDE biosynthesis, in filamentous fungi | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Penicillium oxalicum | |
| 650 | 4 | |a PoxMKK1 | |
| 650 | 4 | |a mycelial development | |
| 650 | 4 | |a plant-polysaccharide-degrading enzyme | |
| 700 | 1 | |a Luo, Xue-Mei |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Shuai |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Jia-Xun |e verfasserin |4 aut | |
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