| NaCl胁迫下不同铵、硝配比对小麦抗氧化酶活性的影响 |
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| 引用本文： | 乔旭,高永红,赛力汗·赛,薛丽华,张永强,陈传信,肖丽,雷钧杰.NaCl胁迫下不同铵、硝配比对小麦抗氧化酶活性的影响[J].新疆农业科学,2021,58(12):2176-2181. |
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| 作者姓名： | 乔旭 高永红 赛力汗·赛 薛丽华 张永强 陈传信 肖丽 雷钧杰 |
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| 作者单位： | 1.新疆农业科学院粮食作物研究所/农业部荒漠绿洲作物生理生态与耕作重点实验室,乌鲁木齐 8300912.中国医学科学院/北京协和医学院药用植物研究所,北京 1001933.新疆农业科学院科研管理处,乌鲁木齐 830091 |
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| 基金项目： | 农业部荒漠绿洲作物生理生态与耕作重点实验室开放课题(25107020-201501);国家小麦产业技术体系(CARS-3-49);天山雪松计划(2019XS16) |
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| 摘 要： | 目的 研究分析减轻盐分胁迫对小麦幼苗伤害的影响。方法 采用水培方法,研究NaCl胁迫下不同铵、硝配比对小麦苗期生长及抗氧化酶活性的影响。结果 在盐分胁迫和非盐分胁迫条件下,相对于纯硝营养,增铵营养在一定程度上能够提高小麦生物量,提高小麦叶片抗氧化酶(SOD、POX和APX)活性,减轻盐分胁迫所导致的细胞膜脂过氧化作用,提高植物的抗逆境胁迫能力。随着盐分浓度的增加小麦叶片质膜透性显著增大,而根系活力、SOD、POX和APX活性则随着盐分浓度的增加显著降低 (P<0.05)。结论 增铵营养在一定程度上对植物抵御盐分胁迫所造成的不利影响有明显的促进作用,并在一定程度上能够减轻盐分的毒害作用。
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| 关 键 词： | NaCl 铵硝配比 小麦 抗氧化酶活性 |
| 收稿时间： | 2020-09-09 |
Influence of Different NH4 +-N/NO3 --N Ratios on Wheat Seedling Antioxidase Activities under NaCl Stress |
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| QIAO Xu,Gao Yonghong,Sailihan Sai,XUE Lihua,ZHANG Yongqiang,CHEN Chuanxin,XIAO Li,LEI Junjie.Influence of Different NH4 +-N/NO3 --N Ratios on Wheat Seedling Antioxidase Activities under NaCl Stress[J].Xinjiang Agricultural Sciences,2021,58(12):2176-2181. |
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| Authors: | QIAO Xu Gao Yonghong Sailihan Sai XUE Lihua ZHANG Yongqiang CHEN Chuanxin XIAO Li LEI Junjie |
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| Institution: | 1. Key Laboratory of Desert-Oasis Crop Physiology, Ecology and Cultivation, MOARA /Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China2. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China3. Scientific Research Management Office, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China |
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| Abstract: | 【Objective】The purpose of this experiment is to explore the effective ways to reduce the damage of salt stress to wheat seedlings from nitrogen form supply. 【Methods】 A hydroponics experiment was carried out to investigate the influence of different NO3 --N/NH4 +-N ratios application on wheat seedling antioxidase activities and membrane permeability under NaCl stress. 【Results】The results showed that under both salt stress and control conditions that wheat seedling plant biomass was significantly increased with increase of the ration of NH4 +-N/NO3 --N supply, and wheat enzyme activities of superoxide dismutase (SOD), peroxidase (POX) and ascorbate peroxidase (APX) were significantly increased as well. Leaf membrane permeability significantly increased with the increase of NaCl concentration, however, root activity, enzyme activities of SOD, POX and APX were significantly decreased with the increase of NaCl concentration (P<0.05). 【Conclusion】The findings indicates that the higher NH4 +-N/NO3 --N ratios (NH4 +-N /NO3 --N, 75/25) and purely NH4 +-N could ameliorate the adverse effect resulting from stress-resistant, and attenuate the toxic effects of salt stress to a certain extent. |
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| Keywords: | NaCl NH4 +-N/NO3 --N ratio wheat antioxidase activity |
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