scholarly journals Different revegetation types alter soil physical-chemical characteristics and fungal community in the Baishilazi Nature Reserve

PeerJ ◽  
2019 ◽  
Vol 6 ◽  
pp. e6251 ◽  
Author(s):  
Jiaojiao Deng ◽  
You Yin ◽  
Jiyao Luo ◽  
Wenxu Zhu ◽  
Yongbin Zhou
Keyword(s):  
Environmental Factors ◽  
Fungal Community ◽  
Nature Reserve ◽  
Fungal Communities ◽  
Coniferous Forests ◽  
Pinus Koraiensis ◽  
Chemical Characteristics ◽  
Broadleaf Forest ◽  
Physical Chemical ◽  
Soil Environmental Factors

The effects of different revegetation types on soil physical–chemical characteristics and fungal community diversity and composition of soils sampled from five different revegetation types (JM, Juglans mandshurica; QM, Quercus mongolica; conifer-broadleaf forest (CB); LG, Larix gmelinii; PK, Pinus koraiensis) in the Baishilazi Nature Reserve were determined. Soil fungal communities were assessed employing ITS rRNA Illunima Miseq high-throughput sequencing. Responses of the soil fungi community to soil environmental factors were assessed through canonical correspondence analysis (CCA) and Pearson correlation analysis. The coniferous forests (L. gmelinii, P. koraiensis) and CB had reduced soil total carbon (C), total nitrogen (N), and available nitrogen (AN) values compared with the broadleaf forest (J. mandshurica, Q. mongolica). The average fungus diversity according to the Shannon, ACE, Chao1, and Simpson index were increased in the J. mandshurica site. Basidiomycota, Ascomycota, Zygomycota, and Rozellomycota were the dominant fungal taxa in this region. The phylum Basidiomycota was dominant in the Q. mongolica, CB, L. gmelinii, and P. koraiensis sites, while Ascomycota was the dominant phylum in the J. mandshurica site. The clear differentiation of fungal communities and the clustering in the heatmap and in non-metric multidimensional scaling plot showed that broadleaf forests, CB, and coniferous forests harbored different fungal communities. The results of the CCA showed that soil environmental factors, such as soil pH, total C, total N, AN, and available phosphorus (P) greatly influenced the fungal community structure. Based on our results, the different responses of the soil fungal communities to the different revegetation types largely dependent on different forest types and soil physicochemical characteristic in Baishilazi Nature Reserve.

scholarly journals Soil Physicochemical Properties and the Rhizosphere Soil Fungal Community in a Mulberry (Morus alba L.)/Alfalfa (Medicago sativa L.) Intercropping System

Forests ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 167 ◽  
Author(s):  
Mengmeng Zhang ◽  
Ning Wang ◽  
Jingyun Zhang ◽  
Yanbo Hu ◽  
Dunjiang Cai ◽  
...  
Keyword(s):  
Community Structure ◽  
Environmental Factors ◽  
Physicochemical Properties ◽  
Fungal Community ◽  
Total Carbon ◽  
Soil Physicochemical Properties ◽  
Planting Pattern ◽  
Fungal Community Structure ◽  
Soil Fungal Community ◽  
Soil Environmental Factors

A better understanding of soil fungal communities is very useful in revealing the effects of an agroforestry system and would also help us to understand the fungi-mediated effects of agricultural practices on the processes of soil nutrient cycling and crop productivity. Compared to conventional monoculture farming, agroforestry systems have obvious advantages in improving land use efficiency and maintaining soil physicochemical properties, reducing losses of water, soil material, organic matter, and nutrients, as well as ensuring the stability of yields. In this study, we attempted to investigate the impact of a mulberry/alfalfa intercropping system on the soil physicochemical properties and the rhizosphere fungal characteristics (such as the diversity and structure of the fungal community), and to analyze possible correlations among the planting pattern, the soil physicochemical factors, and the fungal community structure. In the intercropping and monoculture systems, we determined the soil physicochemical properties using chemical analysis and the fungal community structure with MiSeq sequencing of the fungal ITS1 region. The results showed that intercropping significantly improved the soil physicochemical properties of alfalfa (total nitrogen, alkaline hydrolysable nitrogen, available potassium, and total carbon contents). Sequencing results showed that the dominant taxonomic groups were Ascomycota, Basidiomycota, and Mucoromycota. Intercropping increased the fungal richness of mulberry and alfalfa rhizosphere soils and improved the fungal diversity of mulberry. The diversity and structure of the fungal community were predominantly influenced by both the planting pattern and soil environmental factors (total nitrogen, total phosphate, and total carbon). Variance partitioning analysis showed that the planting pattern explained 25.9% of the variation of the fungal community structure, and soil environmental factors explained 63.1% of the variation. Planting patterns and soil physicochemical properties conjointly resulted in changes of the soil fungal community structure in proportion.

Comparative Analysis of Fungal Diversity and Community Structure of Different Volcanic Soils in Wudalianchi, China

2021 ◽  
Vol 50 (2) ◽  
pp. 327-334
Author(s):  
Fan Yang ◽  
Liqiang Mu ◽  
Qingyang Huang ◽  
Lihong Xie ◽  
Hongjie Cao ◽  
...  
Keyword(s):  
Community Structure ◽  
Environmental Factors ◽  
Fungal Community ◽  
Fungal Diversity ◽  
Chemical Properties ◽  
Fungal Community Structure ◽  
Α Diversity ◽  
Physical And Chemical ◽  
The Relationship ◽  
Soil Environmental Factors

The relationship between the fungal community characteristics and soil environmental factors of volcanic ecosystem in Wudalianchi, China were investigated. The soil fungal community structure and diversity of new, old, and non-erupting volcanos were explored through highthroughput sequencing technology. The result showed that the physical and chemical properties of three plots were significantly different. Through sequencing 578 species, 366 genera, 202 families, 89 orders, 32 classes, and 11 phyla were detected. Among them Ascomycota and Basidiomycota were the dominant fungi phyla. The relative abundance of various flora determined by phylum classification showed significant differences. The Shannon, Simpson, Ace, and Chao1 indices for the soil fungi in the three plots were also significantly different. Redundancy and correlation analyses showed that the α diversity of fungi was significantly correlated with pH, organic matter and total nitrogen in the soil. These results indicate that soil environmental factors influence the fungal diversity in the different volcanic ecosystems in Wudalianchi, China. Bangladesh J. Bot. 50(2): 327-334, 2021 (June)

scholarly journals Succession of the Fungal Endophytic Microbiome in Wheat is Dependent on Tissue-Specific Interactions of Host Genotype and Environment

2020 ◽  
Author(s):  
Meike Anna Christine Latz ◽  
Mads Herbert Kerrn ◽  
Helle Sørensen ◽  
David Brian Collinge ◽  
Birgit Jensen ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Genetic Control ◽  
Fungal Community ◽  
Fungal Communities ◽  
Tissue Type ◽  
Wheat Genotype ◽  
Host Genotype ◽  
Host Genetic ◽  
Leaves And Roots ◽  
Abiotic Environmental Factors

Abstract Background: Fungi living inside seeds, leaves and roots of plants affect many aspects of plant health. Understanding the role of plant genotype, presence of fungal inoculum in the environment, abiotic environmental factors, and interaction of those factors in shaping the plant-associated fungal microbiome is of great relevance for modern agriculture. This knowledge can have direct implications in plant disease management, plant breeding, and development of microorganism-based biocontrol agents. These are important tools also in the context of increasing sustainability and adaption of crop production to a changing climate. In order to disentangle the effects of host genotype, environmental factors, and fungi present in seed stock, air and soil on endophytic fungal communities over one generation, we conducted a large-scale pot experiment with closely related cultivars of wheat over one growth-season. We studied fungi present inside the plants (endophytic fungi), in soil and air with metabarcoding, and monitored abiotic factors during the experimental period.Results: Abiotic environmental factors, wheat genotype, and wheat tissue type were all found to influence fungal communities significantly. While the effect of wheat genotype was limited, there was evidence for host genetic control of fungal communities in leaves and roots but not in seeds. The degree of relatedness between wheat cultivars and resistance levels to the leaf disease STB was not reflected in the microbiome. The effect of host genetic control on the fungal community did not differ between abiotic environments. For the phyllosphere, abiotic environmental factors largely explained differences in fungal community abundance, diversity, and presence of pathogens between the locations, whereas location-dependent differences affected the rhizosphere communities to an only small extent. We found indications that airborne fungi are the primary source of inoculum for above-ground fungal communities of wheat, since a large proportion of leaf-associated fungi were also present in the air but not in soil and seed stocks.Conclusions: Our study demonstrates how the factors genotype, environment, and presence of fungi in the environment shape the endophytic fungal community in wheat over one growing season.

scholarly journals Relationship between Soil Fungi and Seedling Density in the Vicinity of Adult Conspecifics in an Arid Desert Forest

Forests ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 92
Author(s):  
Yanxin Long ◽  
Xiaodong Yang ◽  
Yuee Cao ◽  
Guanghui Lv ◽  
Yan Li ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Water Content ◽  
Fungal Community ◽  
Soil Fungi ◽  
Experimental Plot ◽  
Seedling Density ◽  
Soil Fungal Community ◽  
Arid Desert ◽  
Soil Environmental Factors ◽  
Beneficial Fungi

Research Highlights: 1. Soil fungi have a higher influence on seedling density compared to soil environmental factors; 2. Host-specific pathogens and beneficial fungi affect seeding density via different influencing mechanisms. Background and Objectives: The growth and development of seedlings are the key processes that affect forest regeneration and maintain community dynamics. However, the influencing factors of seedling growth around their adult conspecifics are not clear in arid desert forests. Probing the intrinsic relations among soil fungi, soil environmental factors (pH, water content, salinity, and nutrition), and seedling density will improve our understanding of forest development and provide a theoretical basis for forest management and protection. Materials and Methods: Four experimental plot types, depending on the distance to adult conspecifics, were set in an arid desert forest. Soil environmental factors, the diversity and composition of the soil fungal community, and the seedlings’ density and height were measured in the four experimental plot types, and their mutual relations were analyzed. Results: Seedling density as well as the diversity and composition of the soil fungal community varied significantly among the four plot types (p < 0.05). Soil environmental factors, especially soil salinity, pH, and soil water content, had significant influences on the seedling density and diversity and composition of the soil fungal community. The contribution of soil fungi (72.61%) to the variation in seedling density was much higher than the soil environmental factors (27.39%). The contribution of detrimental fungi to the variation in seedling density was higher than the beneficial fungi. Conclusions: Soil fungi mostly affected the distribution of seedling density in the vicinity of adult conspecifics in an arid desert forest. The distribution of seedling density in the vicinity of adults was mainly influenced by the detrimental fungi, while the adults in the periphery area was mainly influenced by the beneficial fungi.

Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities

2019 ◽  
Author(s):  
Coline Deveautour ◽  
Suzanne Donn ◽  
Sally Power ◽  
Kirk Barnett ◽  
Jeff Powell
Keyword(s):  
Fungal Community ◽  
Community Assembly ◽  
Root Length ◽  
Specific Root Length ◽  
Root Traits ◽  
Arbuscular Mycorrhizal ◽  
Fungal Communities ◽  
Rainfall Regime ◽  
Precipitation Regimes ◽  
Rainfall Regimes

Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We characterised arbuscular mycorrhizal (AM) fungal communities in an Australian grassland exposed to experimentally altered rainfall regimes. We used Illumina sequencing to assess the responses of AM fungal communities associated with four plant species sampled in different watering treatments and evaluated the extent to which shifts were associated with changes in root traits. We observed that altered rainfall regimes affected the composition but not the richness of the AM fungal communities, and we found distinctive communities in the increased rainfall treatment. We found no evidence of altered rainfall regime effects via changes in host physiology because none of the studied traits were affected by changes in rainfall. However, specific root length was observed to correlate with AM fungal richness, while concentrations of phosphorus and calcium in root tissue and the proportion of root length allocated to fine roots were correlated to community composition. Our study provides evidence that climate change and its effects on rainfall may influence AM fungal community assembly, as do plant traits related to plant nutrition and water uptake. We did not find evidence that host responses to altered rainfall drive AM fungal community assembly in this grassland ecosystem.

Sign in / Sign up

Export Citation Format

Share Document