ATP ‐binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat
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Wiley
2024
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| author | Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei |
| author_facet | Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei |
| collection | Wiley Open Access |
| contents | ATP ‐binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei Molecular Plant Pathology Abstract ATP‐binding cassette (ABC) transporters hydrolyse ATP to transport various substrates. Previous studies have shown that ABC transporters are responsible for transporting plant hormones and heavy metals, thus contributing to plant immunity. Herein, we identified a wheat G‐type ABC transporter, TaABCG2‐5B, that responds to salicylic acid (SA) treatment and is induced by Fusarium graminearum , the primary pathogen causing Fusarium head blight (FHB). The loss‐of‐function mutation of TaABCG2 ‐5B (Δ Taabcg2 ‐5B) reduced SA accumulation and increased susceptibility to F. graminearum . Conversely, overexpression of TaABCG2 ‐5B (OE‐ TaABCG2 ‐5B) exerted the opposite effect. Quantification of intracellular SA in Δ Taabcg2 ‐5B and OE‐ TaABCG2 ‐5B protoplasts revealed that TaABCG2‐5B acts as an importer, facilitating the transport of SA into the cytoplasm. This role was further confirmed by Cd 2+ absorption experiments in wheat roots, indicating that TaABCG2‐5B also participates in Cd 2+ transport. Thus, TaABCG2‐5B acts as an importer and is crucial for transporting multiple substrates. Notably, the homologous gene TaABCG2 ‐5A also facilitated Cd 2+ uptake in wheat roots but did not significantly influence SA accumulation or FHB resistance. Therefore, TaABCG2 could be a valuable target for enhancing wheat tolerance to Cd 2+ and improving FHB resistance. 10.1111/mpp.70013 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| doi_str_mv | 10.1111/mpp.70013 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_mpp_70013 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | ATP ‐binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei Molecular Plant Pathology ATP ‐binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat Ya‐Zhou Zhang Jie Man Lan Wen Si‐Qi Tan Shun‐Li Liu Ying‐Hui Li Peng‐Fei Qi Qian‐Tao Jiang Yu‐Ming Wei Molecular Plant Pathology Abstract ATP‐binding cassette (ABC) transporters hydrolyse ATP to transport various substrates. Previous studies have shown that ABC transporters are responsible for transporting plant hormones and heavy metals, thus contributing to plant immunity. Herein, we identified a wheat G‐type ABC transporter, TaABCG2‐5B, that responds to salicylic acid (SA) treatment and is induced by Fusarium graminearum , the primary pathogen causing Fusarium head blight (FHB). The loss‐of‐function mutation of TaABCG2 ‐5B (Δ Taabcg2 ‐5B) reduced SA accumulation and increased susceptibility to F. graminearum . Conversely, overexpression of TaABCG2 ‐5B (OE‐ TaABCG2 ‐5B) exerted the opposite effect. Quantification of intracellular SA in Δ Taabcg2 ‐5B and OE‐ TaABCG2 ‐5B protoplasts revealed that TaABCG2‐5B acts as an importer, facilitating the transport of SA into the cytoplasm. This role was further confirmed by Cd 2+ absorption experiments in wheat roots, indicating that TaABCG2‐5B also participates in Cd 2+ transport. Thus, TaABCG2‐5B acts as an importer and is crucial for transporting multiple substrates. Notably, the homologous gene TaABCG2 ‐5A also facilitated Cd 2+ uptake in wheat roots but did not significantly influence SA accumulation or FHB resistance. Therefore, TaABCG2 could be a valuable target for enhancing wheat tolerance to Cd 2+ and improving FHB resistance. 10.1111/mpp.70013 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| title | ATP ‐binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat |
| topic | Molecular Plant Pathology |
| url | https://bsppjournals.onlinelibrary.wiley.com/doi/10.1111/mpp.70013 |