Rhizopogon

Molina, Randy; Trappe, James M.; Grubisha, Lisa C.; Spatafora, Joseph W.

doi:10.1007/978-3-662-06827-4_5

Cited by 47 publications

(32 citation statements)

References 100 publications

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“…Although improving outplanting performance of seedlings inoculated with Rhizopogon species has been reported [25], growth results are generally of low value for the forester in a practical sense. However, we have shown that the significant survival increase of R. roseolus-inoculated Pinus pinea after transplantation (20% over control seedlings at the end of the experiment) is high enough to be taken into account, especially when analyzing the cost-benefit balance of nursery inoculations to reduce further field replanting.…”

Section: Discussionmentioning

confidence: 99%

“…Fungal inoculations in the nursery were performed with two Rhizopogon species. The genus Rhizopogon is considered a good candidate for controlled mass inoculations in nurseries since it occurs both in young and old stands [25], can be easily inoculated in the nursery as spore suspension [5,22,29] and there are reported effects on increasing field performance of inoculated plants [4,31]. In this study, we present the plant performance data monitored in the two established plots along 34 and 43 months after transplantation.…”

Section: Introductionmentioning

confidence: 99%

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Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land

et al. 2004

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-The effect of mycorrhizal inoculation on field performance of Pinus pinea and P. halepensis seedlings, established in formerly arable land, was evaluated for up to 43 months after outplanting. Containerized seedlings of both tree species were produced in two different substrates, peat:bark and peat:vermiculite, and inoculated with spores of either Rhizopogon luteolus or R. roseolus. One month prior to outplanting, more than 50% of P. pinea short roots were colonized by either inoculated fungi, whereas a maximum of 32% of P. halepensis short roots were colonized by R. roseolus. Seedlings inoculated with R. roseolus were generally taller than non-inoculated ones at transplantation. However, significant differences disappeared or remained small in absolute values during the monitoring period (less than 7 cm in the best case, 34 months after outplanting). Inoculation with R. roseolus increased in 20% the survival of P. pinea seedlings over noninoculated ones after 43 months in the field. Under the experimental conditions tested, these differences in survival were large enough to justify inoculation costs since spore inoculation with Rhizopogon species in the nursery is easy and inexpensive. Transplant Stress Indices allowed to detect overall post-transplantation stress and further recovery periods although no clear relationship between inoculation and planting check was detected.afforestation / field performance / mycorrhizal inoculation / Pinus / Rhizopogon Résumé -Performances de Pinus pinea et P. halepensis inoculés avec Rhizopogon spp. et transplantés sur un ancien terrain agricole. L'effet de l'inoculation mycorhizienne sur la croissance et la survie de Pinus pinea et P. halepensis établis sur un ancien terrain agricole a été évalué pendant 43 mois après la mise en place de la plantation. Les plants des deux espèces ont été produits en conteneur sur deux substrats différents : tourbe:écorce et tourbe:vermiculite, et inoculés avec des spores de Rhizopogon luteolus, ou R. roseolus. Un mois avant la plantation, tous les plants de P. pinea inoculés avaient plus de 50 % des racines courtes colonisées par le champignon inoculé sans distinction d'espèce ou de substrat. Les plants de P. halepensis n'avaient au maximum que 32 % des racines courtes colonisées par R. roseolus. Les plants inoculés avec R. roseolus étaient généralement les plus hauts au moment de la transplantation. Ces différences significatives sont néanmoins restées petites voire ont disparu au cours du temps (moins de 7 cm, dans le meilleur cas, 34 mois après l'établissement de la plantation). La survie des plants de P. pinea inoculés avec R. roseolus a augmenté de 20 % par rapport à celle des plants témoins après 43 mois en plantation. Dans les conditions expérimentées, les différences de survie étaient assez grandes pour justifier le coût de l'inoculation, surtout parce que l'inoculation avec des spores de champignons du genre Rhizopogon est facile à appliquer en pépinière. L'utilisation d'Index de Stress après transplantation ont permis de ...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land

et al. 2004

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“…Rhizopogon vinicolor/vesiculosus are host specialists to Douglasfir and have been observed at all stages of succession in studies examining ECM fungi of Douglas-fir forests (e.g., Molina et al, 1999;Luoma et al, 2004Luoma et al, , 2006Horton et al, 2005;Twieg et al, 2007). They are considered strong networking species in Douglasfir forests and provide an even tighter link within Douglas-fir than other generalist fungi (Molina et al, 1999).…”

Section: Low To Moderate Severity Disturbancementioning

confidence: 99%

The foundational role of mycorrhizal networks in self-organization of interior Douglas-fir forests

Simard

2009

Forest Ecology and Management

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“…Fungal organisms are known to transfer nutrients between different tree organisms and species, based on individual needs and environmental conditions (Beiler et al 2010;Brady and Weil 1999). Mycorrhizal associations between Rhizopogon fungi, one of the species used in this study, have been known to aid in Douglas fir (Pseudotsuga menziesii) seedling establishment, growth, and resiliency (Beiler 2010;Molina et al 1999). Fungal hyphae, the individual filaments, are known to stretch 5-10cm from plant roots, which increases the absorptive surface area of the root system by up to 10 times (Brady and Weil 1999).…”

Section: Fungi and Mycoremediationmentioning

confidence: 99%

Assessment of a Mycorrhizal Fungi Application to Treat Stormwater in an Urban Bioswale

Melville¹

2000

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This study assessed the effect of an application of mycorrhizal fungi to stormwater filter media on urban bioswale soil and stormwater in an infiltrationbased bioswale aged 20 years with established vegetation. The study tested the use of commercially available general purpose biotic soil blend PermaMatrix ® BSP Foundation as a treatment to enhance Earthlite ™ stormwater filter media amelioration of zinc, copper, and phosphorus in an ecologically engineered structure designed to collect and infiltrate urban stormwater runoff before it entered the nearby Willamette River.These results show that the application of PermaMatrix ® BSP Foundation biotic soil amendment to Earthlite ™ stormwater filter media contributed to the reduction of extractable zinc in bioswale soil (-24% and -26%), as compared to the control, which received a treatment of Earthlite ™ stormwater filter media only, and experienced an increase in extractable zinc levels (23% and 39%). The results presented also show evidence that after establishment mycorrhizal treatment demonstrated lowered levels of phosphorus in bioswale soil (-41%) and stormwater (-100%), in contrast to the control, which had increased phosphorus levels. The treatment contributed to reductions between 67% and 100% in every metric detected in stormwater after an establishment period of 17 weeks, while the bioswale with no mycorrhizal treatment had increases between 50% and 117%.Treatment also appeared to enhance the reduction of ammonium and nitrates, while contributing to a greater increase in soil pH.ii

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Rhizopogon

Cited by 47 publications

References 100 publications

Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land

Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land

The foundational role of mycorrhizal networks in self-organization of interior Douglas-fir forests

Assessment of a Mycorrhizal Fungi Application to Treat Stormwater in an Urban Bioswale

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