Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
基本信息
- 批准号:RGPIN-2018-03930
- 负责人:
- 金额:$ 5.83万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2022
- 资助国家:加拿大
- 起止时间:2022-01-01 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Worldwide, there is increasing use of biofertilizers, in particular arbuscular mycorrhizal (AM) fungal inoculants. In nature, these root-dwelling fungi are essential, providing their host plants with a benefits such as improved nutrient uptake, water relations and pathogen defense. Because of these benefits, there is a global industry for AM fungal biofertilizers, and they are marketed for use in agriculture, gardening and landscape restoration. Despite the increased uptake by growers around the world, there is little to indicate that these inoculants promote plant or soil health. Further, these inoculants have not been properly vetted, so evidence for their efficacy is scant, incomplete, or lacking altogether. Basic questions about their performance remain to be answered: What are the factors that determine establishment success? Can growers ensure a positive outcome? Currently, there are no recommendations for growers on best practices, nor can they monitor inoculation success. Perhaps more troubling is that the scientific community has almost no idea of the consequences of biofertilizer use. Only a small number of AM fungal genotypes are commercially produced. These isolates have undergone intense selection for aggressive growth and generalist growth habit. These traits render them an invasion threat, but there is no information on the fate of these inoculants in natural systems.My research looks at factors affecting inoculant establishment and persistence in a novel system. Using greenhouse and field studies, I will use plant and fungal traits to predict which fungi are most likely to establish and persist in the field. Specifically, I will track the inoculation for commercial and local fungi using molecular probes under different host and soil scenarios. I will test for invasion risk by surveying dispersal vectors in real-world agricultural settings, using molecular probes to track the inoculants. Additionally, in a global survey, I will establish baseline occurrence for the world's most widely used AM fungal biofertilizer. Finally, using Next Generation Sequencing, I will evaluate how these introductions affect the local fungal communities.Currently, the use of AM fungal biofertilizers represents at best a financial risk for growers. At worst, these inoculants may perturb local soil and plant communities, possibly disrupting ecosystem functioning. This is a clear case where industrial practices are not supported by scientific knowledge. The ethical, and economic implications of such oversight are profound, ranging from customer quality assurance to soil biodiversity and ecosystem functioning. The products of this research will help inform both practitioners and policy makers about the use of AM fungal inoculum. It will also help form the basis of a best practices tool for growers wishing to use AM fungal inoculum.
在世界范围内,越来越多地使用生物肥料,特别是丛枝菌根(AM)真菌接种剂。在自然界中,这些根栖真菌是必不可少的,为它们的宿主植物提供了诸如改善营养吸收、水分关系和病原体防御等益处。由于这些好处,AM真菌生物肥料在全球范围内形成了一个产业,它们被用于农业、园艺和景观恢复。尽管世界各地的种植者越来越多地使用这些接种剂,但几乎没有迹象表明这些接种剂促进了植物或土壤健康。此外,这些接种剂还没有经过适当的审查,因此其有效性的证据很少,不完整或完全缺乏。 关于它们的业绩的基本问题仍然有待回答:决定建立成功的因素是什么?种植者能否确保取得积极成果? 目前,没有为种植者提供最佳实践建议,也无法监控接种成功情况。也许更令人不安的是,科学界几乎不知道使用生物肥料的后果。只有少数AM真菌基因型是商业化生产的。 这些分离物经历了强烈的选择,积极的增长和通才的增长习惯。这些特性使它们成为入侵威胁,但没有关于这些接种体在自然系统中命运的信息。我的研究着眼于影响接种体在新系统中建立和持久性的因素。 使用温室和田间研究,我将使用植物和真菌性状来预测哪些真菌最有可能在田间建立和持续存在。具体来说,我将跟踪接种的商业和本地真菌在不同的主机和土壤的情况下使用分子探针。我将通过在现实世界的农业环境中调查传播媒介来测试入侵风险,使用分子探针来跟踪接种剂。此外,在一项全球调查中,我将为世界上最广泛使用的AM真菌生物肥料建立基线。最后,使用下一代测序,我将评估这些引进如何影响当地的真菌群落。目前,使用AM真菌生物肥料最多代表了种植者的财务风险。 在最坏的情况下,这些接种物可能会扰乱当地的土壤和植物群落,可能会破坏生态系统的功能。这是一个没有科学知识支持的工业做法的明显例子。这种监督的道德和经济影响是深远的,从客户质量保证到土壤生物多样性和生态系统功能。这项研究的成果将有助于告知从业者和政策制定者关于AM真菌接种物的使用。 它还将有助于为希望使用AM真菌接种物的种植者提供最佳实践工具的基础。
项目成果
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会议论文数量(0)
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Hart, Miranda其他文献
Using mock communities of arbuscular mycorrhizal fungi to evaluate fidelity associated with Illumina sequencing
- DOI:
10.1016/j.funeco.2018.01.004 - 发表时间:
2018-06-01 - 期刊:
- 影响因子:2.9
- 作者:
Egan, Cameron Patrick;Rummel, Alexii;Hart, Miranda - 通讯作者:
Hart, Miranda
Inoculation with arbuscular mycorrhizal fungi improves the nutritional value of tomatoes
- DOI:
10.1007/s00572-014-0617-0 - 发表时间:
2015-07-01 - 期刊:
- 影响因子:3.9
- 作者:
Hart, Miranda;Ehret, David L.;Franken, Philipp - 通讯作者:
Franken, Philipp
Fungal Communities Resist Recovery in Sand Mine Restoration
- DOI:
10.3389/ffgc.2019.00078 - 发表时间:
2019-11-26 - 期刊:
- 影响因子:3.2
- 作者:
Hart, Miranda;Gorzelak, Monika A.;Nevill, Paul - 通讯作者:
Nevill, Paul
Wild plant species growing closely connected in a subalpine meadow host distinct root-associated bacterial communities
- DOI:
10.7717/peerj.804 - 发表时间:
2015-02-26 - 期刊:
- 影响因子:2.7
- 作者:
Aleklett, Kristin;Leff, JonathanW.;Hart, Miranda - 通讯作者:
Hart, Miranda
Arbuscular mycorrhizal fungus-mediated interspecific nutritional competition of a pasture legume and grass under drought-stress
- DOI:
10.1016/j.rhisph.2021.100349 - 发表时间:
2021-04-10 - 期刊:
- 影响因子:3.7
- 作者:
Mickan, Bede S.;Hart, Miranda;Abbott, Lynette K. - 通讯作者:
Abbott, Lynette K.
Hart, Miranda的其他文献
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{{ truncateString('Hart, Miranda', 18)}}的其他基金
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
RGPIN-2018-03930 - 财政年份:2021
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
RGPIN-2018-03930 - 财政年份:2020
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
RGPIN-2018-03930 - 财政年份:2019
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
RGPIN-2018-03930 - 财政年份:2018
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
326368-2012 - 财政年份:2016
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
326368-2012 - 财政年份:2015
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
326368-2012 - 财政年份:2014
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
326368-2012 - 财政年份:2013
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Introduction and persistence of arbuscular mycorrhizal fungal inoculum
丛枝菌根真菌接种物的引入和持久性
- 批准号:
326368-2012 - 财政年份:2012
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual
Promoting vineyard sustainability through arbuscular mycorrhizal fungi
通过丛枝菌根真菌促进葡萄园的可持续性
- 批准号:
445941-2012 - 财政年份:2012
- 资助金额:
$ 5.83万 - 项目类别:
Engage Grants Program
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Introduction and persistence of arbuscular mycorrhizal fungal inoculum
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$ 5.83万 - 项目类别:
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- 资助金额:
$ 5.83万 - 项目类别:
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Introduction and persistence of arbuscular mycorrhizal fungal inoculum
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- 批准号:
326368-2012 - 财政年份:2012
- 资助金额:
$ 5.83万 - 项目类别:
Discovery Grants Program - Individual