Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species
文献类型：期刊论文
| 作者 | Zhao, Hongxia1 ; Zhang, Sheng1; Li, Junyu1,2; Song, Mengya1,2; Pang, Jiayin3,4
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| 刊名 | TREES-STRUCTURE AND FUNCTION
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| 出版日期 | 2018-04-01 |
| 卷号 | 32期号:2页码:473-488 |
| 关键词 | Poplar Mn stress Sex dimorphism N sources ROS accumulation |
| ISSN号 | 0931-1890 |
| DOI | 10.1007/s00468-017-1644-1 |
| 英文摘要 | Populus cathayana was employed as a model species to study sexual differences in plant growth, physiological, biochemical, and ultrastructural responses to manganese (Mn) stress with two different nitrogen sources (NH4 (+) and NO3 (-)). Results showed that NH4 (+)-N (3.75 mM) and NO3 (-)-N (3.75 mM) significantly increased plant growth, gas exchange capacity, as well as superoxide dismutase (SOD) and peroxidase (POD) activities in the leaves of both male and female P. cathayana. In addition, NH4 (+)-N supply could improve tolerance to Mn stress in both male and female P. cathayana with higher photosynthetic capabilities, biomass accumulation, antioxidant enzyme activities, superoxide radicals (O-2 (-)) and thiobarbituric acid-reactive substances (TBARS) in leaves. Under the same condition, female plants grown under NO3 (-) supply exhibited significantly lower biomass accumulation, photosynthetic capabilities, and antioxidant enzyme activities than male plants because of higher Mn accumulation in both above- and belowground organs and higher ROS releasing rate in leaves. Moreover, damage to cellular ultrastructure was also observed in leaves of males and females exposed to Mn stress, but more strongly in females, with more visible degradation of mitochondrion in plant leave cells. The difference in the preferences for different N sources between male and female P. cathayana under Mn stress provides important guidance in fertilizing strategy to minimise intraspecific competition between female and male plants. |
| 语种 | 英语 |
| WOS记录号 | WOS:000427709200011 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.imde.ac.cn/handle/131551/22530]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Zhao, Hongxia |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, POB 417, Chengdu 610041, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia 4.Univ Western Australia, Sch Agr & Environm, Perth, WA 6001, Australia |
| 推荐引用方式 GB/T 7714 | Zhao, Hongxia,Zhang, Sheng,Li, Junyu,et al. Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species[J]. TREES-STRUCTURE AND FUNCTION,2018,32(2):473-488. |
| APA | Zhao, Hongxia,Zhang, Sheng,Li, Junyu,Song, Mengya,&Pang, Jiayin.(2018).Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species.TREES-STRUCTURE AND FUNCTION,32(2),473-488. |
| MLA | Zhao, Hongxia,et al."Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species".TREES-STRUCTURE AND FUNCTION 32.2(2018):473-488. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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