Ericoid mycorrhizal fungi: some new perspectives on old acquaintances

Perotto, Silvia; Martino, Elena

doi:10.1007/978-94-017-1284-2_5

Cited by 39 publications

(53 citation statements)

References 56 publications

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“…Colonization was indicated by the characteristic presence of round bundles of ericoid mycorrhizae hyphae inside the root cells of the inoculated blueberry plants (Figure 1). The conformation of the fungi coincided with the morphometric aspects described for reference by various authors (Bergero et al, 2000;Perotto et al, 2002). Tian et al (2011) states that to accurately identify the effectiveness of the mycorrhizae applied, colonization by the mycorrhizal fungi in the roots must be quantified and characterized; Figure 1 shows the colonization rates obtained in this research.…”

Section: Degree Of Ericoid Mycorrhizal Colonization In Inoculated Culsupporting

confidence: 71%

“…Molecular DNA studies have demonstrated a lack of specificity in mycorrhizal associations, particularly because the same root can hold three or more species of mycorrhizal fungi, and different root systems can be colonized by the same fungal organism. In this regard, ericoid mycorrhizae have been considered the most specific form of mycorrhizae because they colonize a limited number of hosts; however, observations obtained using molecular methods indicate that they may be able to colonize very distant taxa (Bergero et al, 2000;Perotto et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Colonization of blueberry (Vaccinium corymbosum) plantlets by ericoid mycorrhizae under nursery conditions

et al. 2015

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R. Carrillo, J. Guerrero, M. Rodríguez, and C. Meriño-Gergichevich. 2015. Colonization of blueberry (Vaccinium corymbosum L.) plantlets by ericoid mycorrhizae under nursery conditions. Cien. Inv. Agr. 42(3): 365-374. The ericoid mycorrhiza is a symbiotic interaction that contributes to the improvement of the establishment and production of blueberries (Vaccinium corymbosum L.). The objectives of this paper were to assess the frequency (%) and intensity (%) of the colonization and growth of blueberry plantlets inoculated with ericoid mycorrhizae collected from three different edaphoclimatic conditions in the La Araucanía region of southern Chile under nursery conditions. Plantlets of three blueberry cultivars ("Brigitta", "Duke" and "Legacy") were grown under nursery conditions in sterile peat moss and a vermiculite substrate with fresh ericoid mycorrhizae propagules from Gaultheria pumila (collected in Villarrica National Park), Azalea sp., (from an urban garden in Temuco) or V. corymbosum cv. "Brigitta" (from an organic farm in Temuco). After six months, the development of hyphae characteristic of ericoid micorrhizal fungi was identified in root cells. The frequency and intensity of colonization was greater in the "Duke" cv. given the inoculum derived from V. corymbosum, followed by the "Brigitta" and "Legacy" cultivars treated with inoculum from the G. pumila inoculum. Colonization was lowest in those plants treated with the Azalea sp. inoculum. Contact between the inoculum sources and the fine roots of the micro-propagated blueberry plantlets under nursery conditions for six months was an effective method to promote mycorrhization. However, the development of mycorrhizae did not enhance the growth of the three blueberry cultivars during the evaluation period. The possibility of selecting ericoid inocula from site-specific conditions in southern Chile may eventually be used to support the micro-propagation of blueberry plantlets during acclimation and planting, assuming that mycorrhizal plants will improve conditions for establishment in the field.

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Section: Degree Of Ericoid Mycorrhizal Colonization In Inoculated Culsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Colonization of blueberry (Vaccinium corymbosum) plantlets by ericoid mycorrhizae under nursery conditions

et al. 2015

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“…Through extracellular mechanisms, fungi can prevent Cr(VI) input to the cell, and these include i) uptake of reduced Cr(VI) or increasing efflux of metal; ii) immobilisation of Cr(VI) by adsorption on the cell wall, or extracellular precipitation by neoformed secondary minerals; and iii) extracellular sequestration of Cr(VI) by exopolysaccharides and other extracellular metabolites (Gadd 1993a;Macreadie et al 1994;Blaudez et al 2000;Perotto et al 2002;Baldrian 2003).…”

Section: Extracellular Mechanismsmentioning

confidence: 99%

Metallophilic fungi research: an alternative for its use in the bioremediation of hexavalent chromium

García-Hernández

Villarreal-Chiu

Garza-González

2017

Int. J. Environ. Sci. Technol.

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Contamination by hexavalent chromium has had a large impact on modern society and human health. This problem is a consequence of its great industrial applicability to several products and processes. Short-term exposure to hexavalent chromium can cause irritation, ulceration in skin and stomach and in addition to cancer, dermatitis, and damage to liver, renal circulation and nervous tissues, with even death being observed in response to long-term exposures. Many techniques have been used for the remediation of this pollutant, including physical and chemical approaches and, in more recent years, biological methods. Filamentous fungi isolated from contaminated sites exhibit a significant tolerance to heavy metal; hence, they are an important source of microbiota capable of eliminating hexavalent chromium from the environment. However, these microorganisms can do so in different ways, including biosorption, bioreduction, and bioaccumulation, among others. In this review, we explore several of the most documented mechanisms that have been described for fungi/hexavalent chromium interactions and their potential use in bioremediation.

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“…Cortical cells thicken and become the outer surface of the older roots (Smith and Read 2008). Ericoid hyphae penetrate root epidermal cells individually, possibly functioning as separate units (Perotto et al 2002).…”

Section: Structure Of the Ericoid Symbiosismentioning

confidence: 99%

“…Rhizoscyphus ericae (Zhang and Zhuang 2004) of the order Helotiales, Ascomycota (Perotto et al 2002), a teleomorph of the anamorph Scytalidium vaccinii Dalpe, Litten & Sigler (Egger and Sigler 1993) was originally described as Pezizella ericae then transferred to…”

Section: Ericoid Fungimentioning

confidence: 99%

Identification and community profiling of Vaccinium membranaceum root-associated fungi over an elevation gradient in BC's eastern rocky mountains.

Gorzelak¹

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Ericoid mycorrhizal fungi: some new perspectives on old acquaintances

Cited by 39 publications

References 56 publications

Colonization of blueberry (Vaccinium corymbosum) plantlets by ericoid mycorrhizae under nursery conditions

Colonization of blueberry (Vaccinium corymbosum) plantlets by ericoid mycorrhizae under nursery conditions

Metallophilic fungi research: an alternative for its use in the bioremediation of hexavalent chromium

Identification and community profiling of Vaccinium membranaceum root-associated fungi over an elevation gradient in BC's eastern rocky mountains.

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