期刊
NEW PHYTOLOGIST
卷 208, 期 4, 页码 1227-1240出版社
WILEY
DOI: 10.1111/nph.13614
关键词
endophyte; metabolism; mutualism; RNAseq; ryegrass; symbiosis
资金
- Bio-Protection Research Centre
- Massey University
- Royal Society of New Zealand Rutherford Fellowship [RDF-10-MAU-001]
- Royal Society of New Zealand Marsden Fund grant [MAU-14-03, MAU-13-02]
- Australian Research Council [FT110100698]
- AgResearch
- Australian Research Council [FT110100698] Funding Source: Australian Research Council
Beneficial associations between plants and microbes play an important role in both natural and agricultural ecosystems. For example, associations between fungi of the genus Epichloe, and cool-season grasses are known for their ability to increase resistance to insect pests, fungal pathogens and drought. However, little is known about the molecular changes induced by endophyte infection. To study the impact of endophyte infection, we compared the expression profiles, based on RNA sequencing, of perennial ryegrass infected with Epichloe festucae with noninfected plants. We show that infection causes dramatic changes in the expression of over one third of host genes. This is in stark contrast to mycorrhizal associations, where substantially fewer changes in host gene expression are observed, and is more similar to pathogenic interactions. We reveal that endophyte infection triggers reprogramming of host metabolism, favouring secondary metabolism at a cost to primary metabolism. Infection also induces changes in host development, particularly trichome formation and cell wall biogenesis. Importantly, this work sheds light on the mechanisms underlying enhanced resistance to drought and super-infection by fungal pathogens provided by fungal endophyte infection. Finally, our study reveals that not all beneficial plant-microbe associations behave the same in terms of their effects on the host.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据