Sugarcane cultivar-dependent changes in assemblage of soil rhizosphere fungal communities in subtropical ecosystem

Abstract Background There is a growing awareness of the importance of root-associated bacteria and fungi to plant growth. At present, little is known about whether different ginseng cultivars affect the soil rhizosphere microbial community. Results Here, we examined the changes in the microorganismal diversity and composition of the rhizospheres of different ginseng cultivars. We found that fungal communities were more influenced by the cultivars than bacterial communities and revealed differences in the microbial community composition and diversity among the different ginseng cultivars. We found that fungal diversity was negatively correlated with bacterial diversity in CBGL, JYSH and SZSZ; however, TSBT had the lowest bacterial and fungal diversity. We also discovered certain rhizosphere microorganisms that may be associated with pathogenicity and the lifespan of ginseng cultivars, including Bacillus, Alternaria alternata and Cladosporium spp. Conclusions Our results showed that the microbial diversity and community structures under different ginseng cultivars are significantly different and are related to the host cultivar. This result is helpful in providing information that could be used for the breeding of Panax ginseng.

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Studies on the communities of soil fungi in selected mountain stands in southern Poland

Acta Mycologica ◽

10.5586/am.1980.003 ◽

2014 ◽

Vol 16 (1) ◽

pp. 55-87 ◽

Cited By ~ 4

Author(s):

Stefan Kowalski

Keyword(s):

Natural Regeneration ◽

Soil Fungi ◽

Fungal Communities ◽

Southern Poland ◽

Soil Rhizosphere

In the paper results are presented of a study on isolated fungi from the soil, rhizosphere, roots and mycorrhiza of fir natural regeneration in selected stands of the Carpathian and Sudety Mts. A comparison was made of the fungal communities in stands where fir regenerated well with those in stands where such regeneration was lacking.

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Effect of fungal communities from the environment of culture of Trifolium pratense L. Dactylis glomerata L. on fungi pathogennic for clover.

Acta Mycologica ◽

10.5586/am.1983.005 ◽

2014 ◽

Vol 19 (1) ◽

pp. 47-53

Author(s):

Maria Dorenda

Keyword(s):

Fusarium Oxysporum ◽

Trifolium Pratense ◽

Dactylis Glomerata ◽

Fungal Communities ◽

Saprophytic Fungi ◽

Sclerotinia Trifoliorum ◽

Orchard Grass ◽

Trifolium Pratense L ◽

Soil Rhizosphere ◽

Dactylis Glomerata L

Thebiotic function of communities of saprophytic fungi in the soil, rhizosphere, planospohere and roots of clover, orchard grass and their mixed cultures in respect to selected pathogenes of clover was examined. The pathogens were Fusarium oxysporum f. sp. trifolii and Sclerotinia trifoliorum. These communities were not able to resist Fusarium oxysporum f. sp. trifolii. However, most of the components of these communities limited the development of Sclerotinia trifoliorum.

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Influence of soil fungi community in selected mountain stands on the development of Cylindrocarpon destructans (Zins.) Scholt.

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.1980.044 ◽

2014 ◽

Vol 49 (4) ◽

pp. 487-492 ◽

Cited By ~ 3

Author(s):

Stefan Kowalski

Keyword(s):

Soil Fungi ◽

Resistance Index ◽

Abies Alba ◽

Fungal Communities ◽

Parasitic Fungus ◽

Silver Fir ◽

Mountain Forests ◽

Cylindrocarpon Destructans ◽

Soil Fungal Community ◽

Soil Rhizosphere

A trial based on the method of biotic series (M a ń k a, 1974) was undertaken in order to study the effect of the fungal communities isolated from the soil, rhizosphere, roots, and mycorhiza of silver fir self-seed on the development of a parasitic fungus Cylindrocarpon destructans (Zins.) Scholt., which causes dying of fir seedlings in some mountain forests (K o w a l s k i, 1980a). It was found that on the plots where the self-regeneration of the fir (Abies alba Mil.) was good the resistance index of the investigated soil fungal community was about four times as high as in the plots where no self-seed of silver fir was observed.

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

10.32942/osf.io/cu4jh ◽

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.

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Temporal dynamics of mycorrhizal fungal communities and co-associations with grassland plant communities following experimental manipulation of rainfall

10.32942/osf.io/t82ug ◽

2019 ◽

Cited By ~ 1

Author(s):

Coline Deveautour ◽

Sally Power ◽

Kirk Barnett ◽

Raul Ochoa-Hueso ◽

Suzanne Donn ◽

...

Keyword(s):

Community Composition ◽

Plant Community ◽

Plant Communities ◽

Fungal Community ◽

Mycorrhizal Fungi ◽

Temporal Dynamics ◽

Arbuscular Mycorrhizal ◽

Fungal Communities ◽

Plant Responses ◽

Rainfall Regimes

Climate models project overall a reduction in rainfall amounts and shifts in the timing of rainfall events in mid-latitudes and sub-tropical dry regions, which threatens the productivity and diversity of grasslands. Arbuscular mycorrhizal fungi may help plants to cope with expected changes but may also be impacted by changing rainfall, either via the direct effects of low soil moisture on survival and function or indirectly via changes in the plant community. In an Australian mesic grassland (former pasture) system, we characterised plant and arbuscular mycorrhizal (AM) fungal communities every six months for nearly four years to two altered rainfall regimes: i) ambient, ii) rainfall reduced by 50% relative to ambient over the entire year and iii) total summer rainfall exclusion. Using Illumina sequencing, we assessed the response of AM fungal communities sampled from contrasting rainfall treatments and evaluated whether variation in AM fungal communities was associated with variation in plant community richness and composition. We found that rainfall reduction influenced the fungal communities, with the nature of the response depending on the type of manipulation, but that consistent results were only observed after more than two years of rainfall manipulation. We observed significant co-associations between plant and AM fungal communities on multiple dates. Predictive co-correspondence analyses indicated more support for the hypothesis that fungal community composition influenced plant community composition than vice versa. However, we found no evidence that altered rainfall regimes were leading to distinct co-associations between plants and AM fungi. Overall, our results provide evidence that grassland plant communities are intricately tied to variation in AM fungal communities. However, in this system, plant responses to climate change may not be directly related to impacts of altered rainfall regimes on AM fungal communities. Our study shows that AM fungal communities respond to changes in rainfall but that this effect was not immediate. The AM fungal community may influence the composition of the plant community. However, our results suggest that plant responses to altered rainfall regimes at our site may not be resulting via changes in the AM fungal communities.

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Influence of Long-term Fertilizations on Nutrients and Fungal Communities in Typical Paddy Soil of South China

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2017.00286 ◽

2017 ◽

Vol 43 (2) ◽

pp. 286 ◽

Cited By ~ 2

Author(s):

Dan-Mei CHEN ◽

Ling YUAN ◽

Jian-Guo HUANG ◽

Jian-Hua JI ◽

Hong-Qian HOU ◽

...

Keyword(s):

South China ◽

Paddy Soil ◽

Fungal Communities

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REGENERATION OF SOMACLONES FROM SUGARCANE CULTIVAR CO-740 & COMPARISON OF THEIR AGRONOMIC CHARACTERS WITH LOCAL VARIETIES.

International Journal of Advanced Research ◽

10.21474/ijar01/1805 ◽

2016 ◽

Vol 4 (10) ◽

pp. 397-406

Author(s):

Dr.Vijaykumar Biradar ◽

◽

Dr.M.S. Patil ◽

Dr. S.B. Mashetty ◽

Pooja Lachuriye ◽

...

Keyword(s):

Agronomic Characters ◽

Local Varieties ◽

Sugarcane Cultivar

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Fungal Diversity in the Phyllosphere of Pinus heldreichii H. Christ—An Endemic and High-Altitude Pine of the Mediterranean Region

Diversity ◽

10.3390/d12050172 ◽

2020 ◽

Vol 12 (5) ◽

pp. 172 ◽

Cited By ~ 3

Author(s):

Jelena Lazarević ◽

Audrius Menkis

Keyword(s):

High Altitude ◽

Bark Beetles ◽

Fungal Pathogens ◽

High Throughput Sequencing ◽

Fungal Communities ◽

High Quality ◽

The Balkans ◽

Fungal Community Structure ◽

Growing Conditions ◽

Coniferous Tree Species

Pinus heldreichii is a high-altitude coniferous tree species naturaly occurring in small and disjuncted populations in the Balkans and southern Italy. The aim of this study was to assess diversity and composition of fungal communities in living needles of P. heldreichii specifically focusing on fungal pathogens. Sampling was carried out at six different sites in Montenegro, where 2-4 year-old living needles of P. heldreichii were collected. Following DNA isolation, it was amplified using ITS2 rDNA as a marker and subjected to high-throughput sequencing. Sequencing resulted in 31,831 high quality reads, which after assembly were found to represent 375 fungal taxa. The detected fungi were 295 (78.7%) Ascomycota, 79 (21.0%) Basidiomycota and 1 (0.2%) Mortierellomycotina. The most common fungi were Lophodermium pinastri (12.5% of all high-quality sequences), L. conigenum (10.9%), Sydowia polyspora (8.8%), Cyclaneusma niveum (5.5%), Unidentified sp. 2814_1 (5.4%) and Phaeosphaeria punctiformis (4.4%). The community composition varied among different sites, but in this respect two sites at higher altitudes (harsh growing conditions) were separated from three sites at lower altitudes (milder growing conditions), suggesting that environmental conditions were among major determinants of fungal communities associated with needles of P. heldreichii. Trees on one study site were attacked by bark beetles, leading to discolouration and frequent dieback of needles, thereby strongly affecting the fungal community structure. Among all functional groups of fungi, pathogens appeared to be an important component of fungal communities in the phyllosphere of P. heldreichii, especially in those trees under strong abiotic and biotic stress.

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