Ectomycorrhizae and ectomycorrhizal fungal fruit bodies in pine stands differentially damaged by pine wilt disease

Ugawa, Shin; Ichihara, Yoshikazu; Fukuda, Kenji; Suzuki, Kazuo

doi:10.1007/s10267-008-0444-2

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…Under natural conditions, PWD interference can alter the composition and diversity of fungal communities (Akema and Futai, 2005;Ugawa et al, 2009;Chu et al, 2016Chu et al, , 2018Nakashima et al, 2016) and bacteria (Mabuhay and Nakagoshi, 2012;Shi et al, 2015) in pine forests. Using DGGE, we analyzed the effects of PWN infection on the diversity and community structure of rhizosphere fungi and bacteria in the greenhouse.…”

Section: Discussionmentioning

confidence: 99%

Inoculation With Ectomycorrhizal Fungi and Dark Septate Endophytes Contributes to the Resistance of Pinus spp. to Pine Wilt Disease

et al. 2021

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Pine wilt disease (PWD) is a deadly disease to pines (Pinus spp.) worldwide. The occurrence of PWD can reduce the relative abundance of root ectomycorrhizal fungi (ECMF) and dark septate endophytes (DSE). However, the effects of exogenous ECMF/DSE inoculation on the rhizosphere microbial community structure of Pinus tabulaeformis infected by pine wood nematode (PWN) is little known. Here, we tested how ECMF/DSE may improve resistance to PWD by quantifying microbial carbon biomass and soil enzymatic activity among different treatments at 6 and 9 months after PWN infection. Denaturing gradient gel electrophoresis (DGGE) was used to study the microbial community structure at 3, 6, and 9 months after PWN infection in the rhizosphere of P. tabulaeformis seedlings inoculated with ECMF/DSE. The results showed that exogenous ECMF/DSE inoculation reduced the disease severity caused by PWN infection. After PWN infection, the rhizosphere microbial carbon of seedlings inoculated with Amanita vaginata, Suillus bovinus, Gaeumannomyces cylindrosporus, and Paraphoma chrysanthemicola was 38.16, 49.67, 42.11, and 96.05% higher than that of the control group, respectively. Inoculation of ECMF/DSE inhibited the decrease of rhizosphere microbial biomass caused by PWN infection. The richness and diversity of P. tabulaeformis rhizosphere fungi at 9 months were reduced by PWN infection but partially recovered by the exogenous fungi (ECMF/DSE) inoculation except for P. chrysanthemicola, which indicates a role of ECMF/DSE in maintaining stability of the microbial community. Inoculation with ECMF/DSE increased the beneficial bacterial (Thauera sp., Mesorhizobium sp., etc.) and fungal groups (Tomentella ellisii, Wilcoxina mikolae, etc.) of in the rhizosphere. In summary, exogenous ECMF/DSE inoculation could increase P. tabulaeformis resistance to PWD probably by improving the rhizosphere microenvironment.

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Section: Discussionmentioning

confidence: 99%

Inoculation With Ectomycorrhizal Fungi and Dark Septate Endophytes Contributes to the Resistance of Pinus spp. to Pine Wilt Disease

et al. 2021

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“…Ectomycorrhizae formed by Astraeus sp., Atheliaceae, Boletaceae, and Thelephoraceae of pine seedlings showed the highest survival and growth rates regardless of the variety of black pine [32]. However, Ugawa et al, (2009) showed that the rates of ectomycorrhizal root tips were similar between heavily and lightly damaged pine stands, but a higher number of ECMF sporocarp and lower relative abundance of Cenococcum geophilum Fr. were observed in the lightly damaged pine stands [36].…”

Section: Introductionmentioning

confidence: 92%

“…However, Ugawa et al, (2009) showed that the rates of ectomycorrhizal root tips were similar between heavily and lightly damaged pine stands, but a higher number of ECMF sporocarp and lower relative abundance of Cenococcum geophilum Fr. were observed in the lightly damaged pine stands [36]. In addition, our previous study found that PWD could alter the community of root-associated fungi and reduce the colonization rate of ECMF and DSE [14,16].…”

Section: Introductionmentioning

confidence: 93%

The Dark Septate Endophytes and Ectomycorrhizal Fungi Effect on Pinus tabulaeformis Carr. Seedling Growth and their Potential Effects to Pine Wilt Disease Resistance

Chu

Wang

et al. 2019

Forests

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Pine wilt disease (PWD), a worldwide threat to pine forests, has caused tremendous damage to conifer forest in the world. However, little research has been conducted on the relationship between symbiosis functions of root associated fungi and pine wilt disease. In this study, we assessed the influence of seven ectomycorrhizal fungi (ECMF) and five dark septate endophytic fungi (DSE) on the growth traits and root morphology as well as the correlation of these parameters to the cumulative mortality and the morbidity rates in Pinus tabulaeformis Carr.showed the lowest cumulative mortality rates. We propose that the ECMF/DSE symbiosis enhanced the resistance of pine wilt disease via mitigation the dysfunction of water caused by PWN infection. Our research provided evidence that inoculation of ECMF/DSE could be a potential way for pine wilt disease prevention. To find highly efficient fungi for pine wilt disease management, more ECMF and DSE species should be tested.

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“…However, the rates of ectomycorrhizal root tips were not different between heavily and lightly damaged pine stands in the study of Ugawa et al . (), although Cenococcum geophilum had high relative abundance and the number of ECMF fruiting bodies was much lower in the heavily damaged pine stand. The symbiotic function of ectomycorrhizae differs among fungal species (Nara ).…”

Section: Introductionmentioning

confidence: 94%

Pinewood nematode infection alters root mycoflora ofPinus tabulaeformisCarr

et al. 2018

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Ectomycorrhizae and ectomycorrhizal fungal fruit bodies in pine stands differentially damaged by pine wilt disease

Cited by 4 publications

References 23 publications

Inoculation With Ectomycorrhizal Fungi and Dark Septate Endophytes Contributes to the Resistance of Pinus spp. to Pine Wilt Disease

Inoculation With Ectomycorrhizal Fungi and Dark Septate Endophytes Contributes to the Resistance of Pinus spp. to Pine Wilt Disease

The Dark Septate Endophytes and Ectomycorrhizal Fungi Effect on Pinus tabulaeformis Carr. Seedling Growth and their Potential Effects to Pine Wilt Disease Resistance

Pinewood nematode infection alters root mycoflora ofPinus tabulaeformisCarr

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