Evolution of receptor signalling specificity for symbiosis and development
共生和发育的受体信号传导特异性的进化
基本信息
- 批准号:BB/V006029/1
- 负责人:
- 金额:$ 70.99万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2022
- 资助国家:英国
- 起止时间:2022 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
A key event in the evolution of complex life on earth is the transition of plants from water to land. To conquer the terrestrial environment plants had to develop strategies for the acquisition of soil nutrients with initially primitive root precursors. Ever since, plants have lived in symbioses with nutrient-delivering beneficial fungi. Today, the arbuscular mycorrhizal (AM) symbiosis is the most commonly occurring beneficial plant-fungal interaction on Earth, contributing to plant fitness, plant biodiversity and global nutrient cycles. Yet, we are only beginning to unveil the molecular processes leading to the establishment of this intimate association and to control it for modern crop breeding. The Paszkowski group has found that an alpha/beta hydrolase receptor, called DWARF 14 LIKE (D14L), is essential for fungal perception of rice in the rhizosphere. The activation of this receptor is necessary for the unblocking of genetic programmes that enable symbiosis development and induce production of the phytohormone strigolactone (Gutjahr et al., Science 2015; Choi et al., Nat Commun 2020). The receptor is present across the plant kingdom and serves multifunctional roles, including the detection of the smoke constituent karrikin and the modulation of seedling development amongst others. However, D14L receptors from different plant species are functionally not necessarily equivalent. The Paszkowski lab recently found that the D14L homologue from Arabidopsis thaliana was only able to complement the developmental phenotype of rice d14l mutants, but failed to restore AM symbiosis.As D14L receptors are present across terrestrial plants, including early divergent plants and even Charophyte algae, they may have distinctly and successively diversified to acquire the signalling roles we observe today. We now wish to reproduce the evolutionary trajectory in order to define the protein features that condition signalling specificity, and to better understand their emergence. Exploiting the exponentially growing genome sequence resource, we propose here a high-resolution metagenomics approach, employing and developing computational tools that are significantly superior relative to conventional practices. This includes the development of new algorithmic steps enabling 10,000-fold computational acceleration compared to previous approaches. Results obtained from these in silico efforts are then functionally validated in rice to confirm their relevance in vivo.Insights generated here are vital for understanding how receptor functioning integrates and specifies different signalling cues. In doing so, this will open up new areas of research in computational and plant biology and provide a paradigm for which other examples of signalling processes can be assessed.
地球上复杂生命进化的一个关键事件是植物从水到陆地的过渡。为了征服陆地环境,植物必须发展策略,以最初的原始根前体获取土壤养分。从那时起,植物就与提供营养的有益真菌共生。今天,丛枝菌根(AM)共生是地球上最常见的有益植物-真菌相互作用,有助于植物健康,植物生物多样性和全球营养循环。然而,我们才刚刚开始揭示导致这种亲密关系建立的分子过程,并为现代作物育种控制它。Paszkowski小组发现,一种称为DWARF 14 LIKE(D14 L)的α/β水解酶受体对于根际真菌对水稻的感知至关重要。该受体的激活对于开启能够共生发展和诱导植物激素独脚金内酯产生的遗传程序是必需的(Gutjahr等人,Science 2015; Choi等人,Nat Commun 2020)。该受体存在于整个植物界,并发挥多功能作用,包括检测烟雾成分karrikin和调节幼苗发育等。然而,来自不同植物物种的D14 L受体在功能上不一定等同。Paszkowski实验室最近发现,来自拟南芥的D14 L同源物只能补充水稻d14 l突变体的发育表型,但不能恢复AM共生。由于D14 L受体存在于陆生植物中,包括早期分歧植物甚至轮藻,它们可能已经明显地和连续地多样化,以获得我们今天观察到的信号作用。现在,我们希望重现进化轨迹,以确定条件信号特异性的蛋白质特征,并更好地理解它们的出现。利用指数增长的基因组序列资源,我们在这里提出了一个高分辨率的宏基因组学方法,采用和开发的计算工具,显着上级相对于传统的做法。这包括开发新的算法步骤,与以前的方法相比,实现了10,000倍的计算加速。然后在水稻中对这些计算机模拟工作获得的结果进行功能验证,以确认它们在体内的相关性。这里产生的见解对于理解受体功能如何整合和指定不同的信号线索至关重要。在这样做的过程中,这将开辟计算和植物生物学研究的新领域,并提供了一个范例,可以评估其他信号传导过程的例子。
项目成果
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专著数量(0)
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专利数量(0)
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Uta Paszkowski其他文献
The growth defect of lrt1, a maize mutant lacking lateral roots, can be complemented by symbiotic fungi or high phosphate nutrition
- DOI:
10.1007/s004250100642 - 发表时间:
2002-02-01 - 期刊:
- 影响因子:3.800
- 作者:
Uta Paszkowski;Thomas Boller - 通讯作者:
Thomas Boller
Contribution of the arbuscular mycorrhizal symbiosis to heavy metal phytoremediation
- DOI:
10.1007/s00425-006-0225-0 - 发表时间:
2006-03-23 - 期刊:
- 影响因子:3.800
- 作者:
Vera Göhre;Uta Paszkowski - 通讯作者:
Uta Paszkowski
Uta Paszkowski的其他文献
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{{ truncateString('Uta Paszkowski', 18)}}的其他基金
A new presymbiotic recognition mechanism from cereals enabling root invasion by arbuscular mycorrhizal fungi.
来自谷物的一种新的共生前识别机制,使丛枝菌根真菌能够入侵根部。
- 批准号:
BB/Y001133/1 - 财政年份:2024
- 资助金额:
$ 70.99万 - 项目类别:
Research Grant
Discovery of a symbiotic signalling mechanism from maize.
发现玉米共生信号机制。
- 批准号:
BB/V002295/1 - 财政年份:2021
- 资助金额:
$ 70.99万 - 项目类别:
Research Grant
Spatial regulation of rice D14L for pre-symbiotic perception of beneficial fungi
水稻 D14L 对有益真菌共生前感知的空间调节
- 批准号:
BB/P003419/1 - 财政年份:2016
- 资助金额:
$ 70.99万 - 项目类别:
Research Grant
Root type contribution to phosphate nutrition of rice during asymbiosis and interaction with symbiotic fungi.
水稻非共生及与共生真菌相互作用过程中根系类型对磷酸盐营养的贡献。
- 批准号:
BB/N008723/1 - 财政年份:2016
- 资助金额:
$ 70.99万 - 项目类别:
Research Grant
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