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Capturing microbial co-symbiosis to sustain plant productivity

捕捉微生物共生以维持植物生产力

基本信息

批准号：
BB/P002145/1
负责人：
Miriam Gifford
金额：
$ 53.18万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=BB%2FP002145%2F1
关键词：
Capturing microbial co symbiosis sustain

项目摘要

As the world's environment changes it is essential that we produce crop plants adapted to these changes. Within soil, species of bacteria and fungi are involved in symbiotic relationships with the root and at the root-soil interface (so called rhizosphere of crops). The relationship allows each partner to benefit from mutual trading of resources such as critical growth-limiting nutrients. This is important since plants must acquire elemental nutrients such as nitrogen and phosphorus from their surrounding environment and the availability of these nutrients is often a major limitation to plant growth. As well as bringing nutritional enhancement, mutualistic interactions bring additional benefits to improve plant productivity, such as enhanced plant resistance to adverse environmental conditions or pathogen attack. However we cannot gain all of these benefits by simply adding many 'friendly' microbes to soil since the need of one microbe might cancel out the positive effect of another microbe on the plant. How the many rhizosphere microbes compete and combine to affect the plant is a complex question that needs to be studied at a detailed level.We have discovered that an important mutualistic fungus that helps protect plants against disease and supplies plants with phosphorus can also increase 'nodulation' in Medicago, a plant species that is a close relative of peas and beans. Nodulation is an interaction of nitrogen-fixing bacteria with plant roots that enables plants to gain otherwise unusable nitrogen. We will investigate how this enhancement of nodulation occurs, and determine if it still occurs for plants grown in different soil types. To do this we will use a range of state-of-the-art plant, soil and microbe analytical technologies to assess how microbes, plants and the soil type each contribute to the rhizosphere (microbial communities and soil adjacent to the root), and how this affects crop productivity in a range of soil types. New technologies for the identification of soil microbes mean that we are now at a point where we can study the effects of environments on multilateral interactions at the root rhizosphere - one of the most complex ecosystems on Earth. Together the results will help explain the enhanced-mutualistic effects that we have found. It will also help us to determine the importance of specific factors in the rhizosphere for agriculture, and how they could be enhanced to improve crop productivity in new environments.

随着世界环境的变化，我们种植适应这些变化的农作物是至关重要的。在土壤中，细菌和真菌物种与根和根-土壤界面(即所谓的作物根际)存在共生关系。这种关系使每个合作伙伴都能从资源的相互交易中受益，比如关键的限制生长的养分。这一点很重要，因为植物必须从周围环境中获取氮和磷等元素养分，而这些养分的可获得性往往是植物生长的主要限制因素。除了带来营养增强之外，互惠互利的相互作用还带来了提高植物生产力的额外好处，例如增强植物对不利环境条件或病原体攻击的抵抗力。然而，我们不能通过简单地在土壤中添加许多“友好的”微生物来获得所有这些好处，因为一种微生物的需求可能会抵消另一种微生物对植物的积极影响。许多根际微生物如何竞争和结合起来影响植物是一个复杂的问题，需要在详细的水平上进行研究。我们发现，一种重要的互惠真菌，有助于保护植物免受疾病，并为植物提供磷，也可以增加紫花苜蓿的‘结瘤’，紫花苜蓿是豌豆和豆类的近亲。结瘤是固氮细菌与植物根部的相互作用，使植物能够获得原本无法利用的氮素。我们将研究这种结瘤增强是如何发生的，并确定它是否仍然发生在生长在不同土壤类型的植物中。为此，我们将使用一系列最先进的植物、土壤和微生物分析技术来评估微生物、植物和土壤类型各自对根际(微生物群落和根部附近的土壤)的贡献，以及这如何影响一系列土壤类型的作物生产力。识别土壤微生物的新技术意味着，我们现在可以研究环境对根际--地球上最复杂的生态系统之一--的多边相互作用的影响。总而言之，这些结果将有助于解释我们发现的增强的互惠效应。它还将帮助我们确定根际环境中特定因素对农业的重要性，以及如何加强这些因素以提高新环境下的作物生产力。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Elucidating connections between the strigolactone biosynthesis pathway, flavonoid production and root system architecture in Arabidopsis thaliana.

DOI：
10.1111/ppl.13681
发表时间：
2022-03
期刊：
PHYSIOLOGIA PLANTARUM
影响因子：
6.4
作者：
Richmond, Bethany L.;Coelho, Chloe L.;Wilkinson, Helen;McKenna, Joseph;Ratchinski, Pelagie;Schwarze, Maximillian;Frost, Matthew;Lagunas, Beatriz;Gifford, Miriam L.
通讯作者：
Gifford, Miriam L.

Comparative Genomics across Three Ensifer Species Using a New Complete Genome Sequence of the Medicago Symbiont Sinorhizobium (Ensifer) meliloti WSM1022.

使用Medicago Symbiont Sinorhizobium（Ensifer）Meliloti WSM1022的新的完整基因组序列的三个ensifer物种的比较基因组学。

DOI：
10.3390/microorganisms9122428
发表时间：
2021-11-25
期刊：
Microorganisms
影响因子：
4.5
作者：
Baxter L;Roy P;Picot E;Watts J;Jones A;Wilkinson H;Schäfer P;Gifford M;Lagunas B
通讯作者：
Lagunas B

Plant circadian clock control of Medicago truncatula nodulation via regulation of nodule cysteine-rich peptides.

DOI：
10.1093/jxb/erab526
发表时间：
2022-04-05
期刊：
Journal of experimental botany
影响因子：
6.9
作者：
Achom M;Roy P;Lagunas B;Picot E;Richards L;Bonyadi-Pour R;Pardal AJ;Baxter L;Richmond BL;Aschauer N;Fletcher EM;Rowson M;Blackwell J;Rich-Griffin C;Mysore KS;Wen J;Ott S;Carré IA;Gifford ML
通讯作者：
Gifford ML

Polymer nanoparticles pass the plant interface.

DOI：
10.1038/s41467-022-35066-y
发表时间：
2022-11-30
期刊：
NATURE COMMUNICATIONS
影响因子：
16.6
作者：
Parkinson, Sam J.;Tungsirisurp, Sireethorn;Joshi, Chitra;Richmond, Bethany L.;Gifford, Miriam L.;Sikder, Amrita;Lynch, Iseult;O'Reilly, Rachel K.;Napier, Richard M.
通讯作者：
Napier, Richard M.