Diversity, distribution and function of plant-microbe symbioses

研究一再表明，复杂的植物-微生物相互作用对植物的生长、质量和生命特征有深远的影响。一些微生物具有一系列的能力，通过消除压力和植物拮抗剂，或通过动员营养物质来帮助促进生长。相反，其他人通过寄生积极地拖累了几个关键的增长参数。在这些相互作用中，有很大一部分发生在根际，即植物根系周围的土壤区域。在这些相互作用中，丛枝菌根(AM)是植物和真菌之间相互共生的组织，是目前已知的最广泛的有益共生之一。直到最近，所有丛枝菌根真菌都被认为属于球菌门。近年来，属于毛霉菌门的细根内生菌(FRES)形成了类似的AM共生。不幸的是，在对AM共生的历史研究中，通过经典的AM提取方法，FRES的存在被无意中减少了，或者在许多情况下完全被去除了。正因为如此，我们对AM的功能、多样性、生态学和生活史的集体知识几乎完全基于丛枝菌属真菌。该项目将着眼于调查这些丛枝菌根在变化的环境中的多样性、分布、基因组和功能，跨越一系列因素(时间、空间分布、生物和生物)。重点是比较分析那些位于经典的球菌门和新的毛霉菌(重点是FRES)之间的AM，试图确定两个不同的AM组之间的相似和不同本项目旨在突出控制FRE和球囊菌属共生的分布和多样性的关键因素。“

"Research has repeatedly shown that complex plant-microbe interactions have profound impacts upon a plant's growth, quality and life traits. Some microbes confer a range of abilities which help to promote growth through the removal of stress and plant antagonists, or through the mobilisation of nutrients. Conversely, others actively cause a drag on several key growth parameters through parasitism. A large portion of these interactions happen with the rhizosphere, the region of soil surrounding a plants root systemOf these interactions, arbuscular mycorrhiza (AM), a mutual symbiotic association between plants and fungi, presents one of the most widespread beneficial symbioses currently known. Until recently, all arbuscular mycorrhizal fungi were thought to have belonged to the phylum Glomeromycota. In recent years it has become apparent that fine root endophytes (FREs) belonging to the phylum Mucoromycotina form similar AM symbiosis. Unfortunately, Within historical studies on AM symbiosis the presence of FREs has inadvertently been reduced, or in many cases completely removed, through the classic methods of AM extraction. Due to this, our collective knowledge of AM function, diversity, ecology and life history has been based almost exclusively on the glomeromycotan fungi. This project will look to investigate the diversity, distribution, genome and function of these arbuscular mycorrhizae in changing environments, across a series of factors (time, spatial distribution, biotic and abotic). A key focus on comparative analysis between those that sit within the classic Glomeromycota and the newer Mucoromycotinas (focusing on the FREs) will be undertaken in attempt to identify both the similarities and differences between the two distinct groups of AM. This project aims to highlight the key factors that appear to govern the distribution and diversity of FRE and Glomeromycotan symbiosis. "