丛枝菌根真菌对车轴草属植物生长影响的Meta分析
摘要
目前，全球气温变化愈发剧烈。旱涝灾害，温度的剧烈变化，环境的日益恶化等自然灾害发生愈发频繁，致使地球承担着重负。而这些变化均会以直接或间接的方式严重影响着农林牧业的生产和发展。基于这些问题，人们不停寻找新的方式来保护生态环境，确保世界环境的安全，维持生态平衡。丛枝菌根（AM）主要是指植物的根系以及丛枝菌根真菌（ArbuscularMycorrhizalfungi，AMF）结合而成的共生体，而AM真菌-植物体系广泛存在与自然界中。
本文主要是通过Meta分析(Metaanalysis)的方法用定量的方法分析了AM真菌对车轴草属植物的营养吸收的影响。通过WebofScience强大数据库支持下，搜索后一共有30篇相关文献，并且从中找出525个独立样本数值。探究结果体现出，在接种AM真菌后，可以让车轴草属的相关植物在地上、地下生物量以及生物总量是在增加的效果，加强了其对氮磷吸收能力。在AM真菌种类和车轴草类型上存在的差异，对研究结果也会带来一定的影响，通过实验研究表明，其中在车轴草属植物的生物量吸收上，珠状巨抱囊霉的效果最显著。通过胁迫处理能够显著降低AM真菌对植物在地上、地下生物量的吸收效应。对其进行培养，AM真菌对钾、锌、氮元素的吸收，随会时间增加而增多。
A meta-analysis of arbuscular mycorrhizal fungi effects on Trifolium Plants growth
ABSTRACT
With frequent drought, water logging, high temperature, low temperature,environmental degradation as well as pollution ecological disasters caused by global change,the biosphere is suffering unprecedented environmental pressure, and those changes willseriously affect the production and development of agriculture, forestry and animalhusbandry in a direct or indirect way. For this reason, people actively explore new ways ofprotecting habitat environment, keeping ecological balance, and improving environmentalsafety. Arbuscular Mycorrhizal (Arbuscular Mycorrhiza, AM) is a kind of symbiont formedby plant roots and Arbuscular Mycorrhizal fungi (Arbuscular Mycorrhizal fungi, AMF).What’s more, AM fungi-plant system widely exist in the nature.
Meta analysis was performed to quantify the effect of AM fungi inoculation on plant biomass and nutrientuptake of Trifolium plant. In this research, 525 independent observations were extracted from 30 published scientif-is papers through database search of Web of Science.The results indicated that total biomass, shoot biomass androot biomass of Trifolium were significantly increased by AM fungi inoculum. Plant uptake of nitrogen and phos-phorus was also promoted. Both AM fungi species and Trifolium species showed influence on the effect of inocula-tion. Gigaspora margarita inoculation showed the largest amount of biomass enhancement in Trifolium, while the shoot and root biomass of T.alexaudriuum strongly responded to AM fungi inoculation. The stress treatment signifi-candy reduced the effect size of plant shoot and root biomass. The effect size of plant N, K and Zn uptake was sig-nificantly positively correlated with incubation.
Key words: Arbuscular mycorrhizal fungi; meta-analysis; inoculated; effect size
