Investigation of Growth, Free Amino Acids, and Carbohydrate Concentration in the Roots of Perennial Ryegrass in Response to Soil Salinity at Subsurface Soil Depths
文献类型：期刊论文
| 作者 | Zhao, Zhuangjun1; Gitau, Margaret Mukami1,2; Hu, Tao1; Xie, Yan1; Hu, Longxing1; Fu, Jinmin1 |
| 刊名 | JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE
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| 出版日期 | 2016-11-01 |
| 卷号 | 141期号:6页码:539-547 |
| 关键词 | Lolium perenne metabolic processes physiological mechanisms tolerance adaptation |
| ISSN号 | 0003-1062 |
| DOI | 10.21273/JASHS03793-16 |
| 英文摘要 | Plants growing in salt-affected soils may have retarded growth and inhibited or altered metabolic processes. This study aims at investigating the impact of subsurface soil salinity on root growth and metabolic processes in perennial ryegrass (Lolium perenne). The seeds of perennial ryegrass (cv. Quick Start II) were planted in polyvinyl chloride (PVC) tubes (10 cm diameter x 42 cm long) for 2 months. The experiment consisted of three treatments: 1) control, 40 cm filled with sand-peat mixture (7 sand : 3 peat wt/wt); 2) T20, a 20-cm-deep layer of saline soil covered with a 20-cm-deep layer of sand-peat mixture; and 3) T30, a 30-cm-deep layer of saline soil covered with a 10-cm-deep layer of sand-peat mixture. Our study showed that soil salinity at the subsurface inhibited the growth of perennial ryegrass roots. Compared with the control, the root activity in saline soil layer decreased, whereas it remained high in themixture-soil zone. The content of amino acids in the roots obtained from the surface soil (0-10 cm) in T30 was greater than that in both the T20 and the control regimes. The content of soluble sugars in the roots went up with the decrease of the depth of sand-peat mixture. The increased root activity and free amino acids content in the roots sampled from the upper soil layers coupled with the increased soluble sugars in the roots subjected to soil salinity stress in the bottom soil layer represents some adaptive responses and regulative mechanisms in perennial ryegrass. |
| 资助项目 | science and technology service (STS) program of the Chinese Academy of Science[KFJ-EW-STS-120] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000391868300001 |
| 出版者 | AMER SOC HORTICULTURAL SCIENCE |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/3062]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Fu, Jinmin |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhuangjun,Gitau, Margaret Mukami,Hu, Tao,et al. Investigation of Growth, Free Amino Acids, and Carbohydrate Concentration in the Roots of Perennial Ryegrass in Response to Soil Salinity at Subsurface Soil Depths[J]. JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE,2016,141(6):539-547. |
| APA | Zhao, Zhuangjun,Gitau, Margaret Mukami,Hu, Tao,Xie, Yan,Hu, Longxing,&Fu, Jinmin.(2016).Investigation of Growth, Free Amino Acids, and Carbohydrate Concentration in the Roots of Perennial Ryegrass in Response to Soil Salinity at Subsurface Soil Depths.JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE,141(6),539-547. |
| MLA | Zhao, Zhuangjun,et al."Investigation of Growth, Free Amino Acids, and Carbohydrate Concentration in the Roots of Perennial Ryegrass in Response to Soil Salinity at Subsurface Soil Depths".JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE 141.6(2016):539-547. |
入库方式： OAI收割
来源：武汉植物园
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