Microbiota and Host Nutrition across Plant and Animal Kingdoms

意不意外，惊不惊喜，动植物微生物组拉通整！

Plants and animals each have evolved specialized organs dedicated to nutrient acquisition, 

植物和动物分别进化出特有的器官专门用于营养的摄取，

and these harbor specific bacterial communities that extend the host’s metabolic repertoire.

这些器官都有着自己特殊的细菌群落来扩充宿主的代谢能力。

 Similar forces driving microbial community establishment in the gut and plant roots include diet/soil-type, 

所以动物的倡导微生物和植物的根际微生物其实受到相似的作用，包括饮食（动物）/土壤类型（植物）、

host genotype, and immune system as well as microbe-microbe interactions. 

宿主的基因型、免疫系统以及微生物之间的互作。

Here we show that there is no overlap of abundant bacterial taxa between the microbiotas of the mammalian gut and plant roots, 

本文发现，哺乳动物肠道里的优势细菌类群与植物根际的并无交集，

whereas taxa overlap does exist between fish gut and plant root communities. 

鱼的肠道里倒是有一些优势细菌类群在植物里也较为普遍。

A comparison of root and gut microbiota composition in multiple host species belonging to the same evolutionary lineage reveals host phylogenetic signals in both eukaryotic kingdoms. 

无论动物的肠道还是植物的根的细菌群落，在一些进化分支上都有系统发育信号。这一结论来自文献综述，见段落：Co-diversification of Host-Microbe Communities。

The reasons underlying striking differences in microbiota composition in independently evolved, yet functionally related, organs in plants and animals remain unclear 

动植物的消化器官虽然是独立进化的，但是功能是有联系的。至于为何这两种器官里的细菌组成差别如此大，

but might include differences in start inoculum and niche-specific factors such as oxygen levels, temperature, pH, and organic carbon availability.

我们猜测跟建群种，以及氧气、温度、pH和有机碳等生态位特异性的因子有关。

怀疑他们一开始是想找到二者共有的细菌类群的...

原文链接：https://doi.org/10.1016/j.chom.2015.04.009