新闻 > 国内
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China

把实验室搬到5200米海底 深海微生物刷新人类认知

2017-09-28 09:07:51   

原标题:5200米海底,深海微生物刷新人类认知

紫色的海参、红色的游虾、白色的小鱼、蓝色的海葵……色彩斑斓的生命在海底一隅欢快地游弋,上演了一出生动的“海底总动员”。

“利用深海摄像,我们清楚地观测到5200米海底的热闹景象,其实,那些肉眼看不到的微生物才是潜藏深海的‘主角’。”中国大洋第45航次首席科学家林辉告诉科技日报记者,连日来,大洋45航次科考队利用大面积调查和原位富集培养等方式,在东太平洋密集开展深海微生物菌株及其基因资源调查。

此前,我国深海生物基因调查大多集中在西南印度洋、南大西洋和东太平洋洋中脊热液区,在类似东太平洋多金属结核区深海平原的调查相对较少。

实验室搬到5200米海底

深达数千米的大洋深处,高压、幽暗、寒冷,曾被人类视为生命禁区。目前人类认识的深海微生物还不足1%,对海底环境中微生物的生命活动及能量代谢过程也知之甚少。

不仅如此,在陆地实验室完全模拟深海环境来培养微生物,也是当前的世界性技术瓶颈。就在前几天,大洋45航次科考队成功回收在海底工作12天的深海微生物原位富集系统,该系统将实验室“搬到”5200多米的海底,利用深海原位的高压、低温、寡营养等极端环境以及开放的物质交换条件,富集和培养在陆地实验室无法获取的海洋微生物。

“我们用滤膜截流由不同底物获取的原位富集菌体,用于种群结构分析。”来自国家海洋局海洋生物遗传资源重点实验室的董纯明博士说。

微生物是新药开发的独特资源

“极端的深海环境赋予微生物独特的种群结构和代谢机制,蕴含着如嗜压、嗜冷及功能待确认的极端菌。深海微生物资源的价值,体现在科研和应用上。”国家海洋局海洋生物遗传资源重点实验室主任邵宗泽表示,开展深海微生物基因研究,有助于我们探寻深海生命的起源和进化机制。

在推动基础研究稳步向前的同时,深海微生物资源在生物医药、工农业、食品、环境等领域均获重要进展,已经形成数十亿美元的产业。

“深海微生物的特殊代谢途径,将产生大量结构全新的药物候选物,为生物技术产业发展和新药开发提供独特的资源。”邵宗泽介绍,科研人员已分离鉴定出50个具有抗肿瘤、抗衰老、抗氧化或抗菌、抗病毒等活性的小分子化合物。其中,深海微生物抗超级耐药性细菌MRSA与流感病毒H1N1的新结构化合物已获发明专利,并将进入成药性评价环节。

我国微生物资源库仍存不足

经过15年的不懈努力,我国已建成库藏量和种类数世界领先的海洋微生物资源库。

“我国在资源库数量等方面跻身世界前列,但在相关的数据挖掘、开发利用,以及知识产权保护方面关注不够。”大洋45航次临时党委书记黄浩坦言。

“相比发达国家,我国深海调查与样品采集方面技术手段有待加强,观测与采样工具正在逐步完善,生物资源研发方面也需补齐短板。”邵宗泽坦言。

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170928/31524375.html
Server: cms-8-251
Date: 2024/11/15 23:49:17

Powered by China
China