Effects of Two Trichoderma Strains on Plant Growth, Rhizosphere Soil Nutrients, and Fungal Community of Pinus sylvestris var. mongolica Annual Seedlings
Effects of Two Trichoderma Strains on Plant Growth, Rhizosphere Soil Nutrients, and Fungal Community of Pinus sylvestris var. mongolica Annual Seedlings
复制标题
两株木霉对樟子松植物生长、根际土壤养分及真菌群落的影响
DOI：
10.3390/f10090758
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发表时间：
2019-09-01
期刊：
影响因子：
2.9
通讯作者：
Song, Ruiqing
中科院分区：
文献类型：
--
作者：
Halifu, Saiyaremu;Deng, Xun;Song, Ruiqing
木霉菌被认为是广泛存在于自然环境中的主要植物生长促进真菌。这些菌株具有快速生长繁殖和高效转化土壤养分的能力。此外，它们还能改变植物根际土壤环境，促进植物生长。樟子松人工蒙古栎具有抗旱性强，生长快的特点，在生态建设和环境修复中发挥着重要作用。研究了不同施肥处理对樟子松一年生幼苗生长、根系结构、根际土壤养分、酶活性和真菌群落结构的影响。蒙古木霉（Trichoderma harzianum E15）和绿木霉（Trichoderma virens ZT 05）对蒙古木霉（Trichoderma mongolica）菌丝生长的影响。结果表明，接种T. harzianum E15和T.与对照相比，绿僵菌ZT 05的幼苗生物量、根系结构指数、土壤养分和土壤酶活性均显著提高（p <0.05）。T. harzianum E15和T.接种绿僵菌ZT 05对樟子松生长和根际土壤养分的影响。蒙古（p <0.05）。E15处理的幼苗苗高、地径和总生物量均高于ZT 05处理，ZT 05处理的根际土壤养分含量和酶活性均高于E15处理。α多样性分析和β多样性分析结果表明，3个处理（接种T.哈茨菌E15、T. virens ZT05，且未接种木霉属）。总的来说，接种木霉菌与根际土壤养分含量的变化相关。
Trichoderma spp. are proposed as major plant growth-promoting fungi that widely exist in the natural environment. These strains have the abilities of rapid growth and reproduction and efficient transformation of soil nutrients. Moreover, they can change the plant rhizosphere soil environment and promote plant growth. Pinus sylvestris var. mongolica has the characteristics of strong drought resistance and fast growth and plays an important role in ecological construction and environmental restoration. The effects on the growth of annual seedlings, root structure, rhizosphere soil nutrients, enzyme activity, and fungal community structure of P. sylvestris var. mongolica were studied after inoculation with Trichoderma harzianum E15 and Trichoderma virens ZT05, separately. The results showed that after inoculation with T. harzianum E15 and T. virens ZT05, seedling biomass, root structure index, soil nutrients, and soil enzyme activity were significantly increased compared with the control (p < 0.05). There were significant differences in the effects of T. harzianum E15 and T. virens ZT05 inoculation on the growth and rhizosphere soil nutrient of P. sylvestris var. mongolica (p < 0.05). For the E15 treatment, the seedling height, ground diameter, and total biomass of seedlings were higher than that those of the ZT05 treatment, and the rhizosphere soil nutrient content and enzyme activity of the ZT05 treatment were higher than that of the E15 treatment. The results of alpha and beta diversity analyses showed that the fungi community structure of rhizosphere soil was significantly different (p < 0.05) among the three treatments (inoculated with T. harzianum E15, T. virens ZT05, and not inoculated with Trichoderma). Overall, Trichoderma inoculation was correlated with the change of rhizosphere soil nutrient content.