Plant Microbiome Engineering

植物微生物组工程

• 批准号: RGPIN-2014-05274
• 负责人: Yergeau, Etienne
• 金额: $ 2.26万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=611541
• 关键词: Plant; Microbiome; Engineering

Recent leaps in ‘omics technologies have provided us with an unprecedented understanding of the numerous health implications of interactions between humans and the human microbiome. The door is now open to comprehensively characterize another crucial component of the biosphere: the plant microbiome. Plants are responsible for most primary production in terrestrial environments, and are vital components of food production systems. The plant microbiome can both benefit and undermine plant health, and shifting the balance of this assemblage has huge implications for food production. Beneficial microbes can increase nutrient availability, promote plant growth, suppress pathogens, and may help plants to withstand heat and drought. Even though it has been known for decades that the plant microbiome is a key component of plant health, we are only beginning to produce a system-level understanding of it. As soil microbial assemblages are a rich source of functional diversity with demonstrated plasticity, a better understanding of the plant microbiome will allow it to be engineered to promote specific beneficial microbial taxa, functions and activities. Therefore, the goals of my research program are twofold: 1) use ‘omics technologies and large-scale data analysis to understand the interactions between plants and their microbiome and, in the longer-term, 2) harness this unique relationship to engineer the plant microbiome and generate real-world solutions to problems such as food production, soil pollution, and global warming. For the next five to ten years, my research program will be focused on three main aims, using one of the most important Canadian crops, wheat (Triticum aestivum), as a model crop plant. The overarching goal is to engineer a wheat microbiome that would be better adapted to future climate scenarios for southern Canada, and that allows growth in sub-optimal conditions, promoting more sustainable agriculture. The proposed program will benefit from the synergy offered by the National Research Council Canada (NRC) Wheat Improvement Flagship Program for which I am involved within the Beneficial Biotic Interaction theme. The three aims are: 1) The Canadian wheat microbiome. The goal of this aim is to find microbial genes and organisms that would promote plant adaptation to limiting conditions. 2) The plant-microbe meta-organism. The goal of this aim is to identify how the plant and its microbiome interact and if this interaction can be recreated in sterile plants using microbial isolates. 3) New approaches for plant microbiome engineering. This aim will focus on generating a proof of concept for plant microbiome engineering. This research program will innovate by generating a new understanding of the plant microbiome at an unprecedented level of detail, and will lay the ground for targeted rhizosphere engineering. In agro-ecosystems, I expect that a full understanding of the plant microbiome will enable an optimization of plant health, nutrition, and yields, toward a more sustainable agriculture.

组学技术的最新飞跃为我们提供了对人类与人类微生物组之间相互作用的众多健康影响的前所未有的理解。现在，全面描述生物圈另一个重要组成部分的大门已经打开：植物微生物组。植物负责陆地环境中的大多数初级生产，是食物生产系统的重要组成部分。植物微生物组既可以有益于植物健康，也可以破坏植物健康，改变这种组合的平衡对粮食生产有着巨大的影响。有益微生物可以增加养分的可用性，促进植物生长，抑制病原体，并可能帮助植物抵御高温和干旱。尽管几十年来人们已经知道植物微生物组是植物健康的关键组成部分，但我们才刚刚开始对其进行系统水平的了解。由于土壤微生物组合是功能多样性的丰富来源，具有已证实的可塑性，因此更好地了解植物微生物组将使其能够被改造以促进特定的有益微生物类群，功能和活动。因此，我的研究计划的目标是双重的：1）使用组学技术和大规模数据分析来了解植物与其微生物组之间的相互作用，从长远来看，2）利用这种独特的关系来设计植物微生物组，并为粮食生产，土壤污染和全球变暖等问题提供现实世界的解决方案。在接下来的五到十年里，我的研究计划将集中在三个主要目标上，使用加拿大最重要的作物之一小麦（Triticum aestivum）作为模式作物。总体目标是设计一种小麦微生物组，使其更好地适应加拿大南部未来的气候情景，并允许在次优条件下生长，促进更可持续的农业。拟议的计划将受益于加拿大国家研究理事会（NRC）小麦改良旗舰计划提供的协同作用，我参与了有益的生物相互作用主题。这三个目标是： 1)加拿大小麦微生物群这个目标的目标是找到微生物基因和生物体，将促进植物适应限制条件。 2)植物-微生物超有机体。这一目标的目的是确定植物及其微生物组如何相互作用，以及这种相互作用是否可以使用微生物分离株在无菌植物中重现。 3)植物微生物组工程的新方法。这一目标将侧重于为植物微生物组工程提供概念验证。 这项研究计划将通过以前所未有的细节水平对植物微生物组产生新的理解来进行创新，并将为有针对性的根际工程奠定基础。在农业生态系统中，我希望对植物微生物组的充分了解将有助于优化植物健康，营养和产量，从而实现更可持续的农业。