| 盐胁迫下巴西蕉幼苗CaM含量的变化 |
| |
| 引用本文： | 王文昌,周双云,乔 飞,吉福桑,李元元,李新国.盐胁迫下巴西蕉幼苗CaM含量的变化[J].热带作物学报,2017,37(2):12-15. |
| |
| 作者姓名： | 王文昌 周双云 乔 飞 吉福桑 李元元 李新国 |
| |
| 作者单位： | 1 海南大学园艺园林学院 海南海口 570228；2 广西农业科学院园艺研究所 广西南宁 530007;2 广西农业科学院园艺研究所 广西南宁 530007;3 中国热带农业科学院热带作物品种资源研究所 海南儋州 571737;1 海南大学园艺园林学院 海南海口 570228;1 海南大学园艺园林学院 海南海口 570228;1 海南大学园艺园林学院 海南海口 570228 |
| |
| 摘 要： | 研究巴西蕉幼苗在60 mmol/L NaCl人工模拟的盐胁迫0、4、8、12、24和48 h不同时间下，通过增加外源CaCl2和钙离子螯合剂EGTA处理后，测定其叶片和根的钙调蛋白(CaM)含量的变化。结果表明，与对照处理相比，在NaCl胁迫过程中，叶片CaM含量在4、8、12 h显著增加而在24和48 h显著减少；根的CaM含量则是在4、12、24 h显著增加，在8 h显著降低。在NaCl胁迫中添加CaCl2处理能显著提高CaM含量，而在NaCl胁迫中添加EGTA处理能显著降低CaM含量。以上说明，通过
|
| 关 键 词： | 巴西蕉幼苗 盐胁迫 CaM含量 |
The Change of CaM content in Brazil Banana Seedlings under Salt Stress |
| |
| Institution: | 1 College of Horticulture and Landscape Architecture,HainanUniversity, Haikou, Hainan 570228; 2 Horticultural Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007;2 Horticultural Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007;3 Tropical Crops Genetic Resource Institute, CATAS, Danzhou, Hainan 571737;1 College of Horticulture and Landscape Architecture,HainanUniversity, Haikou, Hainan 570228;1 College of Horticulture and Landscape Architecture,HainanUniversity, Haikou, Hainan 570228;1 College of Horticulture and Landscape Architecture,HainanUniversity, Haikou, Hainan 570228 |
| |
| Abstract: | Brazil banana seedlings were treated with salt under 60 mmol/L NaCl salt stress environment at 0, 4, 8, 12, 24 or 48 h and added with exogenous CaCl2 and calcium chelator EGTA to determine their CaM content in roots and leaves. The results showed that the CaM content of the leaves significantly increased at 4 h, 8 h or 12 h and significantly decreased at 24 h or 48 h under NaCl stress as compared to the control. The CaM content of the roots significantly increased at 4 h, 12 h or 24 h, and significantly decreased at 8 h. The CaM content could significantly increased by adding CaCl2 under the NaCl stress, and significantly decreased by adding EGTA under the NaCl stress. This indicates that calcium signaling system may be involved in the salt regulation of banana through the change of CaM content. |
| |
| Keywords: | Brazil banana seedling Salt stress CaM content |
|
| 点击此处可从《热带作物学报》浏览原始摘要信息 |
| 点击此处可从《热带作物学报》下载免费的PDF全文 |
|
