College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China.
National Wolfberry Engineering Research Center, Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China.
Microbiol Spectr. 2022 Apr 27;10(2):e0229321. doi: 10.1128/spectrum.02293-21. Epub 2022 Mar 2.
The symbiotic relationship of arbuscular mycorrhizal fungi (AMF) is important for , a highly nutritious and medicinal crop. However, the influence of environmental factors on AMF communities remains largely elusive. Based on MiSeq sequencing, we analyzed AMF communities in rhizosphere soils of with growth synchronization in three typical cultivation sites in China. The Zhongning region has poor soils with a high richness of AMF communities. Geographical environmental variances lead to differences in AMF communities which in turn affects the active ingredients of fruit. Furthermore, different genera of AMF showed significant correlations with environmental factors and fruit ingredients. The three genera, , and correlated to environmental factors and fruits ingredients in a similar manner affecting the whole sugar (TS) and flavonoids (FLA) contents in the fruits of . Also, these showed a significantly positive correlation with soil pH. This fact was unknown so far due to different soil acidity/alkalinity in different studies. The climatic and ecological environment is a complex phenomenon, involving various environmental factors that regulate the diversity and population distribution structure of AMF communities affecting plant growth, crop composition, and yield. Current studies on the effects of environmental factors on AMF communities have mainly focused on soil conditions and host plants. Fewer studies have been conducted on the correlation between temperature, enzyme activity, plant fruiting, and AMF communities. The present study investigated the diversity of AMF communities and the influence of environmental factors on their distribution patterns, which showed similar effects on some AMF species. The results suggest that screening AMF fungicides that meet the target may significantly help soil restoration reducing the use of chemical fertilizers and a large amount of human and material resources.
丛枝菌根真菌（AMF）的共生关系对 （一种营养丰富且具有药用价值的作物）非常重要。然而，环境因素对 AMF 群落的影响在很大程度上仍难以捉摸。基于 MiSeq 测序，我们分析了中国三个典型 种植区中生长同步的 根际土壤中的 AMF 群落。中宁地区土壤贫瘠，但 AMF 群落丰富度较高。地理环境差异导致 AMF 群落存在差异，进而影响 果实的活性成分。此外，不同属的 AMF 与环境因素和果实成分呈显著相关性。三个属，即 、 和 与环境因素和果实成分呈相似的相关性，影响果实的总糖（TS）和类黄酮（FLA）含量。此外，这些与土壤 pH 值呈显著正相关。由于不同研究中土壤的酸度/碱度不同，到目前为止，这一事实还不为人知。气候和生态环境是一种复杂的现象，涉及各种环境因素，这些因素调节 AMF 群落的多样性和种群分布结构，从而影响植物的生长、作物组成和产量。目前，关于环境因素对 AMF 群落影响的研究主要集中在土壤条件和宿主植物上。关于温度、酶活性、植物结实和 AMF 群落之间的相关性的研究较少。本研究调查了 AMF 群落的多样性及其分布模式受环境因素的影响，结果表明某些 AMF 物种的影响相似。结果表明，筛选符合目标的 AMF 杀菌剂可能会显著有助于土壤修复，减少化肥的使用以及大量的人力和物力资源。
