Morphological and molecular analyses of ectomycorrhizal diversity in Pinus densiflora seedlings

Ma, Dalong; Yang, Guoting; Mu, Liqiang

doi:10.1007/s13199-010-0079-x

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…Thelephora sp. was also found in red pine (Pinus densiflora) seedlings in a natural regenerating area of a mature forest (Ma et al, 2010) and in European larch (Larix decidua Mill.) seedlings in forest nursery conditions (Leski and Rudawska, 2012).…”

Section: Discussionmentioning

confidence: 86%

Effects of simulated nitrogen deposition on ectomycorrhizae community structure in hybrid larch and its parents grown in volcanic ash soil: The role of phosphorous

Wang

Agathokleous

et al. 2018

Science of The Total Environment

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With the rapid industrial development and modern agricultural practices, increasing nitrogen (N) deposition can cause nutrient imbalance in immature volcanic ash soil commonly found in Japan. Larch species, widely distributed in northeast Eurasia, are associated with ectomycorrhizal (ECM) fungi which play a critical role in nutrient acquisition for their hosts. In this study, we investigated species richness and diversity of ECM fungi associated with a hybrid larch (F) and its parents, Dahurian larch (Larix gmelinii var. japonica) and Japanese larch (L. kaempferi), under simulated N deposition (0 and 100kghayr) with/without phosphorous (P) (0 and 50kghayr). Seedlings planted in immature volcanic ash with low nutrient availability were subjected to the N and P treatments for fifteen months. We found that response of ECM community structure to the increased nutrient availability depended on host genotypes. Nutrient addition significantly affected ECM structure in Japanese larch, but no such significant effect was found for Dahurian larch. Effects of the nutrient addition to ECM fungal community in F were intermediate. F was tolerant to high N loading, which was due to consistent, relatively high association with Suillus sp. and Hebeloma sp. F showed heterosis in relative biomass, which was most apparent under high N treatments. This co-variation of ECM fungal community structure and F biomass in response to N loading suggest that ECM community structure might play an important role in host growth. The present findings indicate effects of N deposition on ECM fungal community structure can depend on larch species, thus it is challenging to predict general trends.

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Section: Discussionmentioning

confidence: 86%

Effects of simulated nitrogen deposition on ectomycorrhizae community structure in hybrid larch and its parents grown in volcanic ash soil: The role of phosphorous

Wang

Agathokleous

et al. 2018

Science of The Total Environment

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“…Laccaria laccata, an EMF of Pinus sylvestris seedlings, is less sensitive to flooding [13], which supports our finding that Laccaria species are tolerant to frequent inundation and flooding. The absence of C. geophilum, a successful EMF of red pine seedlings [36], in the streamside samples was unexpected as it was observed in 26% of the forest seedlings in this study (Table 2), and it is hydrophilic [37]. However, C. geophilum is sensitive to the host type and precise water potential in flooding areas [12], which could explain its absence from the roots of streamside seedlings.…”

Section: Discussionmentioning

confidence: 63%

Ectomycorrhizal Fungi Associated with Pinus densiflora Seedlings under Flooding Stress

et al. 2021

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Flooding is an environmental stress for plants that not only limits aeration and nutrient acquisition, but also disturbs underground plant-associated fungal communities. Despite frequent flooding, red pine (Pinus densiflora) seedlings thrive in streamside environments. However, whether the compatible ectomycorrhizal fungi (EMF) of red pine are affected by natural flooding is unclear. As EMF are vital symbionts for the development of many trees and allow them to overcome various environmental stresses, in this study, the EMF species associated with red pine seedlings in a streamside environment in Korea were investigated after flooding. The EMF species in 47 seedlings collected from the streamside site were identified by observing their different morphotypes using internal transcribed spacer sequence analysis, and a total of 10 EMF species were identified. The EMF species diversity was lower than that in samples collected from a nearby forest analyzed as a control. The dominant EMF species of streamside seedlings included Amphinema spp., Rhizopogon luteolus, Suillus luteus, and Thelephora terrestris. This study could serve as a basis for investigating the mechanisms by which advantageous EMF aid plant development under flooding stress.

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“…terrestris being the only ECM fungus detected in association with the P. radiata seedlings in the PF Olsen Nursery experiment and T. ellisii in the Lincoln University experiment. This is considerably lower than that observed in bare root nurseries (five species) and Pinus forest communities (10–41 species) (Jonsson et al ., ; Ma et al ., ; Walbert et al ., 2010 a ; Gassibe et al ., ). Th.…”

Section: Discussionmentioning

confidence: 99%

Influence of inoculation with a Trichoderma bio‐inoculant on ectomycorrhizal colonisation of Pinus radiata seedlings

Minchin

Ridgway

Condron

et al. 2012

Annals of Applied Biology

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Trichoderma species, through mechanisms such as mycoparasitism, antibiosis, induced resistance and competition, are able to suppress the growth and activity of soil microbes and therefore have the potential to influence ectomycorrhizal (ECM) fungal colonisation. ECM colonisation potential of Pinus radiata seedlings inoculated with the commercially available Trichoderma species bio-inoculant, ArborGuard™, was investigated in a commercial containerised nursery setting and in a separate glasshouse experiment. Application of ArborGuard™ to P. radiata seedlings in both the containerised nursery and glasshouse experiment had no detrimental effect on the ability of the naturally occurring ECM fungi to colonise the seedlings. Thelephora terrestris was the only ECM species colonising the P. radiata root tips in the containerised system while Tomentella ellisii was the dominant species found colonising the P. radiata root tips in the glasshouse experiment. No seedling growth promotion was observed with the addition of ArborGuard™. The results show that the Trichoderma bio-inoculant ArborGuard™ does not affect ECM colonisation of P. radiata seedlings by Th. terrestris and T. ellisii in a containerised nursery system.

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Morphological and molecular analyses of ectomycorrhizal diversity in Pinus densiflora seedlings

Cited by 10 publications

References 22 publications

Effects of simulated nitrogen deposition on ectomycorrhizae community structure in hybrid larch and its parents grown in volcanic ash soil: The role of phosphorous

Effects of simulated nitrogen deposition on ectomycorrhizae community structure in hybrid larch and its parents grown in volcanic ash soil: The role of phosphorous

Ectomycorrhizal Fungi Associated with Pinus densiflora Seedlings under Flooding Stress

Influence of inoculation with a Trichoderma bio‐inoculant on ectomycorrhizal colonisation of Pinus radiata seedlings

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