| 三种荒漠地衣共生菌藻的耐热性研究 |
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| 引用本文： | 陈凯,魏江春.三种荒漠地衣共生菌藻的耐热性研究[J].菌物学报,2015,34(5):1007-1014. |
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| 作者姓名： | 陈凯 魏江春 |
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| 作者单位： | 1中国科学院微生物研究所真菌学国家重点实验室 北京 1001012中国科学院大学 北京 100049 |
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| 基金项目： | 国家自然科学基金（31470149） |
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| 摘 要： | 作为沙漠生物地毯工程研究的组成部分,对荒漠地衣石果衣Endocarpon pusillum、节瘤微孢衣Acarospora nodulosa以及荒漠微孢衣A. schleicheri的共生菌藻进行了耐热性研究。结果表明,3种荒漠地衣的共生菌藻在湿润条件下对温度的最大忍受力仅为50℃,而在干燥条件下石果衣的共生菌藻的最大忍受力均为75℃,而其他两种地衣共生菌藻的最大忍受力均为80℃。3种荒漠地衣共生菌、藻分别对高温胁迫的耐受力,在干燥状态下均比在湿润状态下明显增高。
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| 关 键 词： | 生物地毯工程 湿润 干燥 温度 |
| 收稿时间： | 2014-03-10 |
Heat tolerance of the mycobionts and phycobionts from three desert lichens |
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| Authors: | Kai CHEN Jiang-Chun WEI |
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| Institution: | 1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China2University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | This paper deals with the heat tolerance of mycobionts and phycobionts isolated from desert lichens Endocarpon pusillum, Acarospora nodulosa, and A. schleicheri. This study is a part of the research program of the desert biological carpet engineering. The results showed that the mycobionts and phycobionts of the three desert lichens can only tolerate the temperature of 50°C under the moist conditions. However, under the arid conditions both the mycobiont and phycobiont of E. pusillum can tolerate the temperature of 75°C, and those of the other two lichens can tolerate the temperature of 80°C. It is concluded that the high-temperature tolerance of mycobionts and phycobionts isolated from desert lichens is much stronger under arid conditions than that under moist conditions. |
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| Keywords: | biological carpet engineering moist arid temperature |
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