Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice
Rice is an important food crop, acting as the staple food for more than 50% of the global population. We selected seedlings (two sterile male lines: WA803A and JW803A) that had different cytoplasmic but the same nuclear composition and were heterogeneous. The maintainer line 803B was also used. We a...
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2025-03-01
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| author | Rong Liu Qin Wang Xiyuan Wang Shengmin Yan Guotao Yang Peng Ma Yungao Hu |
| author_facet | Rong Liu Qin Wang Xiyuan Wang Shengmin Yan Guotao Yang Peng Ma Yungao Hu |
| author_sort | Rong Liu |
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| description | Rice is an important food crop, acting as the staple food for more than 50% of the global population. We selected seedlings (two sterile male lines: WA803A and JW803A) that had different cytoplasmic but the same nuclear composition and were heterogeneous. The maintainer line 803B was also used. We aimed to study their nitrogen uptake rate in different concentrations of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>−</sup> and explore the differences in nitrogen uptake efficiency between different cytoplasmic genes. The results showed a significant difference in the nitrogen uptake rate for different seedlings. With ammonium nutrition, the nitrogen uptake efficiency of the JW cytoplasm was significantly higher than that of the WA cytoplasm. In low concentrations of ammonium nitrogen, the JW cytoplasm had an additive effect to the nuclear gene regulation of ammonium uptake. The JW cytoplasm’s ammonium nitrogen absorption effect on nuclear gene regulation was higher than that of the WA cytoplasm. The effect of the WA and JW cytoplasms on the nitrate uptake rate was not significant, and the nuclear gene regulation of both cytoplasms was reduced by absorbing nitrate. Under nitrogen deficiency conditions, the material output and conversion rate of the JW-type cytoplasmic hybrid rice combination was relatively high, significantly higher than those of other cytoplasmic combinations. Under medium nitrogen conditions, the material output and conversion rate of the (N2) W-type hybrid rice combination were significantly higher than those of the other cytoplasmic combinations. The yield of JW-type rice first increased and then decreased with the increase in the nitrogen application rate and was highest, 8195.55 kg/hm<sup>2</sup>, under the N2 treatment. |
| format | Article |
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| publishDate | 2025-03-01 |
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| series | Plants |
| spelling | doaj-art-71d3559fb222414ebd3af504825a181f2025-08-20T02:59:01ZengMDPI AGPlants2223-77472025-03-0114582010.3390/plants14050820Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in RiceRong Liu0Qin Wang1Xiyuan Wang2Shengmin Yan3Guotao Yang4Peng Ma5Yungao Hu6College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaCollege of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaCollege of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaZigong Academy of Agricultural Sciences, Zigong 643000, ChinaCollege of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaCollege of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaCollege of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaRice is an important food crop, acting as the staple food for more than 50% of the global population. We selected seedlings (two sterile male lines: WA803A and JW803A) that had different cytoplasmic but the same nuclear composition and were heterogeneous. The maintainer line 803B was also used. We aimed to study their nitrogen uptake rate in different concentrations of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>−</sup> and explore the differences in nitrogen uptake efficiency between different cytoplasmic genes. The results showed a significant difference in the nitrogen uptake rate for different seedlings. With ammonium nutrition, the nitrogen uptake efficiency of the JW cytoplasm was significantly higher than that of the WA cytoplasm. In low concentrations of ammonium nitrogen, the JW cytoplasm had an additive effect to the nuclear gene regulation of ammonium uptake. The JW cytoplasm’s ammonium nitrogen absorption effect on nuclear gene regulation was higher than that of the WA cytoplasm. The effect of the WA and JW cytoplasms on the nitrate uptake rate was not significant, and the nuclear gene regulation of both cytoplasms was reduced by absorbing nitrate. Under nitrogen deficiency conditions, the material output and conversion rate of the JW-type cytoplasmic hybrid rice combination was relatively high, significantly higher than those of other cytoplasmic combinations. Under medium nitrogen conditions, the material output and conversion rate of the (N2) W-type hybrid rice combination were significantly higher than those of the other cytoplasmic combinations. The yield of JW-type rice first increased and then decreased with the increase in the nitrogen application rate and was highest, 8195.55 kg/hm<sup>2</sup>, under the N2 treatment.https://www.mdpi.com/2223-7747/14/5/820hybrid riceWA cytoplasmJW cytoplasmnitrogen formuptake rate |
| spellingShingle | Rong Liu Qin Wang Xiyuan Wang Shengmin Yan Guotao Yang Peng Ma Yungao Hu Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice Plants hybrid rice WA cytoplasm JW cytoplasm nitrogen form uptake rate |
| title | Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice |
| title_full | Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice |
| title_fullStr | Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice |
| title_full_unstemmed | Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice |
| title_short | Effects of Cytoplasmic Sterility on Roots and Yield of Nitrogen Sources in Rice |
| title_sort | effects of cytoplasmic sterility on roots and yield of nitrogen sources in rice |
| topic | hybrid rice WA cytoplasm JW cytoplasm nitrogen form uptake rate |
| url | https://www.mdpi.com/2223-7747/14/5/820 |
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