The Potential Applications of Commercial Arbuscular Mycorrhizal Fungal Inoculants and Their Ecological Consequences.
The Potential Applications of Commercial Arbuscular Mycorrhizal Fungal Inoculants and Their Ecological Consequences.
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DOI：
10.3390/microorganisms10101897
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发表时间：
2022-09-23
期刊：
影响因子：
4.5
通讯作者：
Hijri M
中科院分区：
文献类型：
--
作者：
Basiru S;Hijri M
丛枝菌根真菌 (AMF) 接种剂是可持续的生物材料，可以为植物提供多种益处，特别是在受干扰的农业生态系统和植物管理干预的背景下。然而，很难预测 AMF 接种剂的有效性及其在野外条件下对土著 AMF 群落的影响。在这篇综述中，我们研究了有关在田间引入基于 AMF 的接种剂后可能产生的结果的文献，包括它们在土壤和植物根部的建立、持久性以及对本地 AMF 群落的影响。大多数研究表明，引入的 AMF 可以在目标田中持续几个月到几年，但丰度下降（60%）或完全排除（30%）。进一步分析表明，AMF 接种对本地 AMF 物种产生积极和消极影响，包括抑制（33%）、刺激（38%）、排斥（19%）和中性影响（10%）。进一步讨论了影响AMF接种剂生态命运的因素，如接种剂的固有性质、接种剂量和频率以及土壤物理和生物因素。虽然监测商业接种剂在现场的成功和下游影响很重要，但用于解析和量化 AMF 分类群的采样方法和分子工具需要改进和标准化，以消除对某些 AMF 菌株的偏见并减少研究之间的差异。最后，接种剂生产商必须专注于选择在该领域成功机会更高的菌株，并且对下游影响很小或可以忽略不计。
Arbuscular mycorrhizal fungal (AMF) inoculants are sustainable biological materials that can provide several benefits to plants, especially in disturbed agroecosystems and in the context of phytomanagement interventions. However, it is difficult to predict the effectiveness of AMF inoculants and their impacts on indigenous AMF communities under field conditions. In this review, we examined the literature on the possible outcomes following the introduction of AMF-based inoculants in the field, including their establishment in soil and plant roots, persistence, and effects on the indigenous AMF community. Most studies indicate that introduced AMF can persist in the target field from a few months to several years but with declining abundance (60%) or complete exclusion (30%). Further analysis shows that AMF inoculation exerts both positive and negative impacts on native AMF species, including suppression (33%), stimulation (38%), exclusion (19%), and neutral impacts (10% of examined cases). The factors influencing the ecological fates of AMF inoculants, such as the inherent properties of the inoculum, dosage and frequency of inoculation, and soil physical and biological factors, are further discussed. While it is important to monitor the success and downstream impacts of commercial inoculants in the field, the sampling method and the molecular tools employed to resolve and quantify AMF taxa need to be improved and standardized to eliminate bias towards certain AMF strains and reduce discrepancies among studies. Lastly, inoculant producers must focus on selecting strains with a higher chance of success in the field, and having little or negligible downstream impacts.
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