IbINV Positively Regulates Resistance to Black Rot Disease Caused by Ceratocystis fimbriata in Sweet Potato
Black rot disease, caused by Ceratocystis fimbriata Ellis & Halsted, severely affects both plant growth and post-harvest storage of sweet potatoes. Invertase (INV) enzymes play essential roles in hydrolyzing sucrose into glucose and fructose and participate in the regulation of plant defense responses. However, little is known about the functions of INV in the growth and responses to black rot disease in sweet potato. In this study, we identified and characterized an INV-like gene, named IbINV, from sweet potato. IbINV contained a pectin methylesterase-conserved domain. IbINV transcripts were most abundant in the stem and were significantly induced in response to C. fimbriata, salicylic acid, and jasmonic acid treatments. Overexpressing IbINV in sweet potato (OEV plants) led to vigorous growth and high resistance to black rot disease, while the down-regulation of IbINV by RNA interference (RiV plants) resulted in reduced plant growth and high sensitivity to black rot disease. Furthermore, OEV plants contained a decreased sucrose content and increased hexoses content, which might be responsible for the increased INV activities; not surprisingly, RiV plants showed the opposite effects. Taken together, these results indicate that IbINV positively regulates plant growth and black rot disease resistance in sweet potato, mainly by modulating sugar metabolism.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:24 |
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| Enthalten in: |
International journal of molecular sciences - 24(2023), 22 vom: 17. Nov. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yang, Dongjing [VerfasserIn] |
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| Links: |
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| Themen: |
57-50-1 |
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| Anmerkungen: |
Date Completed 27.11.2023 Date Revised 27.11.2023 published: Electronic Citation Status MEDLINE |
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| doi: |
10.3390/ijms242216454 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM364948604 |
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| 520 | |a Black rot disease, caused by Ceratocystis fimbriata Ellis & Halsted, severely affects both plant growth and post-harvest storage of sweet potatoes. Invertase (INV) enzymes play essential roles in hydrolyzing sucrose into glucose and fructose and participate in the regulation of plant defense responses. However, little is known about the functions of INV in the growth and responses to black rot disease in sweet potato. In this study, we identified and characterized an INV-like gene, named IbINV, from sweet potato. IbINV contained a pectin methylesterase-conserved domain. IbINV transcripts were most abundant in the stem and were significantly induced in response to C. fimbriata, salicylic acid, and jasmonic acid treatments. Overexpressing IbINV in sweet potato (OEV plants) led to vigorous growth and high resistance to black rot disease, while the down-regulation of IbINV by RNA interference (RiV plants) resulted in reduced plant growth and high sensitivity to black rot disease. Furthermore, OEV plants contained a decreased sucrose content and increased hexoses content, which might be responsible for the increased INV activities; not surprisingly, RiV plants showed the opposite effects. Taken together, these results indicate that IbINV positively regulates plant growth and black rot disease resistance in sweet potato, mainly by modulating sugar metabolism | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a sweet potato | |
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| 700 | 1 | |a Chen, Jingwei |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Jukui |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Chengling |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Houjun |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Yiping |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Zongyun |e verfasserin |4 aut | |
| 700 | 1 | |a Kwak, Sang-Soo |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Daifu |e verfasserin |4 aut | |
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