The concentric bodies of lichenized fungi

Griffiths, Huw; Greenwood, A. D.

doi:10.1007/bf00409130

Cited by 40 publications

(19 citation statements)

References 21 publications

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“…In addition, Ohnuki et al, 2005, identified the cell surface U precipitates as uranyl-phosphate mineral with a structure similar to that of H-autunite. Intracellular U uptake has been described in fungi, including the lichen Piltigera membranacea where U was localized mainly within cellular organelles termed ''concentric bodies'' Griffiths and Greenwood, 1972). Phosphate groups are important functional groups for the complexation of U(VI) on the cell surface and in our case also inside the fungal cells.…”

Section: 2mentioning

confidence: 96%

Microbial communities in bentonite formations and their interactions with uranium

López-Fernández¹,

Fernández-Sanfrancisco²,

Moreno-García³

et al. 2014

Applied Geochemistry

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Section: 2mentioning

confidence: 96%

Microbial communities in bentonite formations and their interactions with uranium

López-Fernández¹,

Fernández-Sanfrancisco²,

Moreno-García³

et al. 2014

Applied Geochemistry

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“…lg-h;Griffiths & Greenwood, 1972;Galun, Behr & Ben-Shaul, 1974). However, concentric bodies are neither a peculiarity of lichen-forming ascomycetes, nor of the symbiotic way of life per se as they have been found in nonlichenized taxa such as microcolonial ascomycetes of desert rocks (Staley, Palmer & Adams, 1982;TaylorGeorge et al, 1983) and in a range of saprotrophic and plant pathogenic ascomycetes (Bellemere, 1973 ;Tu & Colotelo, 1973;Granett, 1974;Samuelson & Bezerra, 1977;Pons, Gay & Sutton, 1984;Beilharz, 1985).…”

Section: Peculiarities Of the Lichen Symbiosis {A) Cytologicai And Anmentioning

confidence: 99%

Developmental biology of lichens

1993

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SUMMARY Lichen‐forming fungi are a large, taxonomically diverse group of nutritional specialists which acquire fixed carbon from a population of minute green algal or cyanobacterial cells. Mycobionts of foliose or fruticose lichens differ from the rest of the fungi by expressing morphologically and anatomically complex symbiotic phenotypes. The extracellularly located photobiont cell population of these macrolichens is housed and controlled by the quantitatively predominant fungal partner which competes for space above ground, secures adequate illumination and facilitates gas exchange. This review summarizes data on the ontogeny, functional morphology, growth patterns and internal thalline differentiation of macrolichens.

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“…It was found that water drops subjected to strong electric fields would deform and disrupt, with the subsequent release of charge in the form of coronas and charged droplets. Notable studies on corona discharges from single water drops include the works of Dawson (1969), Richards and Dawson (1971) and Griffiths and Latham (1972). These studies yielded corona-threshold electric fields significantly larger than the largest typically observed in thunderclouds.…”

Section: Introductionmentioning

confidence: 99%

Laboratory investigation of positive streamer discharges from simulated ice hydrometeors

Petersen

Bailey

Hallett

et al. 2006

Quart J Royal Meteoro Soc

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SUMMARYPositive streamer discharges have been observed from ice crystals grown from the vapour under controlled temperature and air pressure corresponding to the standard atmosphere and also constant air pressure of 850 hPa. Crystals of size comparable to larger precipitation crystals were grown in a vapour diffusion chamber at various temperatures and pressures, and were subject to electric fields using an in situ electrode assembly. Results show that individual positive streamer discharges can occur at temperatures from near freezing down to at least −38 • C when subject to electric fields on the order of 500 kV m −1 , in contrast to previous reports of continuous positive streamer discharges occurring only at temperatures warmer than −18 • C for pure ice crystals. These results suggest that positive streamer discharges can occur on frozen precipitation particles at high altitudes in thunderclouds, given a sufficiently strong electric field. Such discharges may be a necessary element of the lightning-initiation process.

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The concentric bodies of lichenized fungi

Cited by 40 publications

References 21 publications

Microbial communities in bentonite formations and their interactions with uranium

Microbial communities in bentonite formations and their interactions with uranium

Developmental biology of lichens

Laboratory investigation of positive streamer discharges from simulated ice hydrometeors

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