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生物科学论坛

做大圣娱乐登录:【讲座预告】高精尖中心首席科学家Francis Martin院士学术讲座

[发布日期:2018-10-29 点击数: ]

讲座时间:2018112日(星期五)上午10

讲座地点:生物楼 313

讲座题目:The evolution of modes of nutrition in forest fungi – from wood decay to symbiosis

报 告 人:弗朗西斯·马。Martin, F.M.)博士

报告人简介:弗朗西斯·马。Martin, F.M.)博士,法国农业科学院院士。目前在位于法国南锡的法国国家农业研究所担任特聘研究主任,也是ARBRE卓越实验室的负责人。他在南锡大学和巴黎南部大学获得植物科学博士学位。他在加州大学洛杉矶分校、西罗-珀斯分:兔拦┮挡看笪餮笱芯恐行慕辛瞬┦亢蟮难芯。他的主要研究课题包括菌根共生、真菌演化、比较和古基因组学以及森林生态学的发展途径。他的研究着重于了解真菌如何通过其在重要土壤中的作用来驱动森林生态系统包括分解和养分转化以及碳封存在内的过程。

报告简介:Within the plant microbiota, mycorrhizal fungi are striking examples of microorganisms playing crucial roles in nutrient acquisition. They have coevolved with their hosts since the raise of land plants and the recent development of calibrated phylogenies, linked with the growing understanding of fungal genomes, provides remarkable insights into the evolutionary histories of mycorrhizal symbioses.

The comparison of 100+ genomes from mycorrhizal fungi, wood and soil decomposers has revealed several independent lifestyle transitions from saprotrophism to mutualism in fungal lineages. In addition to reconstructing the evolution of mycorrhizal symbioses, our growing ability to use reference genomes for profiling differentially-expressed transcripts, for instance, is helping us to identify hundreds of symbiosis-related genes.

I will discuss recent genomic studies that have revealed the adaptations that seem to be fundamental to the convergent evolution of ectomycorrhizal fungi, including the loss of some metabolic functions, such as plant cell wall degrading enzymes, and the acquisition of small secreted effector-like proteins that facilitate the accommodation of symbiotic fungi within their host plants. Finally, I will consider how these insights can be integrated into a model of the development of ectomycorrhizal symbioses and pave the way to a better understanding of their role in carbon cycling in forest ecosystems.

本次论坛联系人:戴玉成

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