| 高耐铝红酵母RS1耐铝特性初步研究 |
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| 引用本文： | 王 超,赵学强,沈仁芳.高耐铝红酵母RS1耐铝特性初步研究[J].土壤,2013,45(3):501-505. |
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| 作者姓名： | 王 超 赵学强 沈仁芳 |
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| 作者单位： | 1. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京210008;中国科学院大学,北京100049
2. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008 |
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| 基金项目： | 国家自然科学基金项目(41025005；40871144；31000933)资助 |
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| 摘 要： | 红酵母RS1是从酸性土壤中筛选出的一株高耐铝微生物,本文对其耐铝特性进行了初步研究.结果发现,RS1可以在pH 2.5的培养基中生长,50 ～ 200 mmol/L A13+处理对RS1产生了毒害作用,其毒害并未对细胞表面形态产生影响.RS1对Al2(SO4)3的忍耐能力高于AlCl3,这种高的忍耐能力是遗传固有的,并不被诱导产生.此外,RS1可以增加体内蛋白含量来适应高的铝毒,其中蛋白型巯基可能在耐铝中表现重要作用.
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| 关 键 词： | 红酵母RS1 铝毒 pH 蛋白质 巯基 |
A Study on High Aluminum-tolerant Characteristic of Rhodotorula sp. RS1 |
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| WANG Chao,ZHAO Xue-qiang,SHEN Ren-fang.A Study on High Aluminum-tolerant Characteristic of Rhodotorula sp. RS1[J].Soils,2013,45(3):501-505. |
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| Authors: | WANG Chao ZHAO Xue-qiang SHEN Ren-fang |
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| Institution: | State Key Laboratory of Soil and Sustainable Agriculture (Institute of Soil Science, Chinese Academy of Sciences) |
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| Abstract: | Rhodotorula sp. RS1 isolated from acidic oil-tea fields is a high Al-tolerant microorganism. In this study, its Al-tolerant characteristic was studied. Results showed that the growth of RS1 colony was inhibited under the treatment of 50-200 mmol/L Al3+; however, Al toxicity did not obviously influence the cell morphology. RS1 showed higher tolerant ability for Al2(SO4)3 than AlCl3, and this high Al-tolerant ability was not induced by Al3+. Under the treatment of highly Al toxicity, RS1 could increase protein content, and protein thiols may play an important role in high tolerance of RS1 to Al. |
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| Keywords: | Rhodotorula sp RS1 Al toxicity pH Protein Thiols |
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