The differing responses of two Arabidopsis ecotypes to ammonium are modulated by the photoperiod regime
文献类型：期刊论文
| 作者 | Li, Baohai1,2; Shi, Weiming1; Su, Yanhua1 |
| 刊名 | ACTA PHYSIOLOGIAE PLANTARUM
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 33期号:2页码:325-334 |
| 关键词 | Accessions Glutamine synthetase Glutamate dehydrogenase Circadian clocks NH(4)(+) toxicity |
| ISSN号 | 0137-5881 |
| DOI | 10.1007/s11738-010-0551-5 |
| 通讯作者 | Shi, Weiming(wmshi@issas.ac.cn) |
| 英文摘要 | Responses to excessive ammonium (NH(4) (+)) were compared between two Arabidopsis ecotypes (Col-0, JA22) with respect to different photoperiods in hydroponics. In this study, we showed that external extra NH(4) (+) led to severe growth suppression, accumulations of free NH(4) (+) and amino acids and increased the activities of glutamine synthetase (GS) and glutamate dehydrogenase (GDH) in shoots of the two Arabidopsis ecotypes. However, the levels of free NH(4) (+) and total amino acids increased, whereas the activities of GS, NADH-dependent glutamate synthase and GDH decreased under the continuous light when compared with the light (16 h)-dark (8 h) cycle photoperiod. Statistical analyses suggested that strong correlations exist among the growth reduction, accumulations of free NH(4) (+), total amino acids and levels of GS activity in shoots under the high NH(4) (+) stress regardless of the photoperiod regimes. Interestingly, under the continuous light, Col-0 showed more resistant to such growth reduction and maintained about onefold higher capability of converting excess free NH(4) (+) into amino acids, with onefold higher GS activity induced by the external NH(4) (+) when compared with JA22. In contrast, these differences were abolished between Col-0 and JA22 under the light-dark cycle condition. Taken together, our results conclude that the sensitivity to NH(4) (+) of Col-0 and JA22 is changed between the continuous light and the light-dark cycle photoperiod, which is correlative to the alteration of the GS activity in shoots. |
| 收录类别 | SCI |
| WOS关键词 | NAD(H)-DEPENDENT GLUTAMATE-DEHYDROGENASE ; GDP-MANNOSE PYROPHOSPHORYLASE ; NITROGEN DEPOSITION ; HIGHER-PLANTS ; IN-VIVO ; PHASEOLUS-VULGARIS ; ROOT-GROWTH ; ASSIMILATION ; METABOLISM ; TOBACCO |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000287499300011 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559011 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shi, Weiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Baohai,Shi, Weiming,Su, Yanhua. The differing responses of two Arabidopsis ecotypes to ammonium are modulated by the photoperiod regime[J]. ACTA PHYSIOLOGIAE PLANTARUM,2011,33(2):325-334. |
| APA | Li, Baohai,Shi, Weiming,&Su, Yanhua.(2011).The differing responses of two Arabidopsis ecotypes to ammonium are modulated by the photoperiod regime.ACTA PHYSIOLOGIAE PLANTARUM,33(2),325-334. |
| MLA | Li, Baohai,et al."The differing responses of two Arabidopsis ecotypes to ammonium are modulated by the photoperiod regime".ACTA PHYSIOLOGIAE PLANTARUM 33.2(2011):325-334. |
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来源：南京土壤研究所
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