| 不同钼积累水平大豆品种苗期碳氮代谢生理差异 |
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| 引用本文： | 徐守俊,胡承孝,谭启玲,孙学成.不同钼积累水平大豆品种苗期碳氮代谢生理差异[J].中国油料作物学报,2019,41(1):75. |
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| 作者姓名： | 徐守俊 胡承孝 谭启玲 孙学成 |
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| 作者单位： | １．广东省农业科学院农产品公共监测中心／农业部农产品质量安全检测与评价重点实验室（广州），
广东广州，５１０６４０；
２．华中农业大学资源与环境学院／微量元素研究中心，湖北武汉，４３００７０ |
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| 基金项目： | 基金项目：农业部９４８项目（２０１６－Ｘ６１）；国家重点研发计划项目（２０１４ＢＡＤ１４Ｂ０２－０２） |
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| 摘 要： | 为探究不同钼积累能力的大豆品种对缺钼条件下生理代谢的差异，以品种1301（钼高积累）和品种1304（钼低积累）为材料，在营养液培养下研究了两个品种光合碳代谢以及氮代谢生理差异。结果表明：缺钼降低了大豆叶片光合碳代谢能力。缺钼条件下，品种1301叶片光合速率可溶性糖、叶绿素a、叶绿素b以及叶绿素a+b 含量显著高于1304，表明1301具有较高的光合碳代谢能力。缺钼也降低了根中氮代谢能力。缺钼条件下，品种1301中硝酸还原酶活性和铵态氮含量均显著高于品种1304，表明1301具有较强的氮代谢能力。以上结果表明大豆钼高积累品种能累积较多的钼，且表现出较高的碳氮代谢能力。因此认为培育大豆钼高积累品种是提高大豆生理代谢能力的一种经济有效的措施。
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| 关 键 词： | 大豆 钼 累积 效率 碳氮代谢 差异 |
Differences of photosynthetic carbon and nitrogen metabolism between high-Mo-accumulation and low-Mo-accumulation Glycine max seedlings |
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| XU Shou-jun,HU Cheng-xiao,Tan Qi-ling,Sun Xue-cheng.Differences of photosynthetic carbon and nitrogen metabolism between high-Mo-accumulation and low-Mo-accumulation Glycine max seedlings[J].Chinese Journal of Oil Crop Sciences,2019,41(1):75. |
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| Authors: | XU Shou-jun HU Cheng-xiao Tan Qi-ling Sun Xue-cheng |
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| Institution: | 1. Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/ Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture, P R China, Guangzhou 510640, China;
2. College of Resources and Environment/Microelements Research Centre of Huazhong Agricultural University，Wuhan 430070，China |
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| Abstract: | To explore the differences of Mo utilization efficient between high Mo accumulation and low Mo accumulation cultivars, we analyzed the physiological differences of photosynthetic carbon and nitrogen metabolism between high-Mo-accumulation and low-Mo-accumulation soybean cultivars. The results indicated that chlorophyll content, Pn, soluble sugar and shoot dry matter decreased under Mo deficient condition. Under Mo deficient condition, the chlorophyll content, Pn, soluble sugar in 1301 were significantly higher than those in 1304. These results suggested that 1301 (Mo-efficient cultivar) exhibited higher carbon metabolism ability. Meanwhile, the nitrate content and nitrate/ ammonium ratio increased under Mo deficient condition, and NR, GOGAT, GS activity and NH4+-N content decreased under Mo deficient condition. Under Mo deficient condition, NR activity was significantly higher in 1301 than that in 1304, which indicated 1301 exhibited a higher nitrogen assimilation ability than 1304. These results indicated that the high-Mo-accumulation soybean cultivars accumulated high Mo which enhanced the high carbon and nitrogen utilization ability. Thus, breeding high Mo accumulation soybean cultivars could efficiently mprove Mo utilization of soybean. |
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| Keywords: | soybean molybdenum accumulation efficiency carbon/nitrogen metabolism difference |
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