Interactions between cyanobacterium and fungus during 15N2-incorporation and metabolism in the lichen Peltigera canina

1983 ◽  
Vol 134 (2) ◽  
pp. 136-142 ◽  
Author(s):  
Amar N. Rai ◽  
Peter Rowell ◽  
William D. P. Stewart
2006 ◽  
Vol 63 (1) ◽  
pp. 54-60 ◽  
Author(s):  
S. Omarsdottir ◽  
B.O. Petersen ◽  
H. Barsett ◽  
B. Smestad Paulsen ◽  
J.Ø. Duus ◽  
...  

Mycologia ◽  
2003 ◽  
Vol 95 (6) ◽  
pp. 1181 ◽  
Author(s):  
Jolanta Miadlikowska ◽  
Francois Lutzoni ◽  
Trevor Goward ◽  
Stefan Zoller ◽  
David Posada

1997 ◽  
Vol 29 (1) ◽  
pp. 91-96 ◽  
Author(s):  
M. Webster ◽  
D. H. Brown

AbstractPeltigera canina thalli have been successfully transplanted onto soil in a garden and in flowerpots. Garden samples showed marked seasonality and achieved growth rates of 6·4 cm per year. Pot-grown samples showed variation in the growth of individual thallus lobes and established that, under different soil hydration regimes, permanently hydrated thalli could sustain considerable linear growth rates for at least 140 days.


Biologia ◽  
2010 ◽  
Vol 65 (4) ◽  
Author(s):  
Bazyli Czeczuga ◽  
Ewa Czeczuga-Semeniuk ◽  
Adrianna Semeniuk

AbstractThe effect of light quality on the photosynthetic pigments as chromatic adaptation in 8 species of lichens were examined. The chlorophylls, carotenoids in 5 species with green algae as phycobionts (Cladonia mitis, Hypogymnia physodes, H. tubulosa var. tubulosa and subtilis, Flavoparmelia caperata, Xanthoria parietina) and the chlorophyll a, carotenoids and phycobiliprotein pigments in 3 species with cyanobacteria as photobionts (Peltigera canina, P. polydactyla, P. rufescens) were determined. The total content of photosynthetic pigments was calculated according to the formule and particular pigments were determined by means CC, TLC, HPLC and IEC chromatography. The total content of the photosynthetic pigments (chlorophylls, carotenoids) in the thalli was highest in red light (genus Peltigera), yellow light (Xanthoria parietina), green light (Cladonia mitis) and at blue light (Flavoparmelia caperata and both species of Hypogymnia). The biggest content of the biliprotein pigments at red and blue lights was observed. The concentration of C-phycocyanin increased at red light, whereas C-phycoerythrin at green light.In Trebouxia phycobiont of Hypogymnia and Nostoc photobiont of Peltigera species the presence of the phytochromes was observed.


1993 ◽  
Vol 34 (5) ◽  
pp. 761-764 ◽  
Author(s):  
Xuemin Yang ◽  
Yuzuru Shimizu ◽  
Jorge Rios Steiner ◽  
Jon Clardy

Planta ◽  
1981 ◽  
Vol 152 (6) ◽  
pp. 544-552 ◽  
Author(s):  
A. N. Rai ◽  
P. Rowell ◽  
W. D. P. Stewart
Keyword(s):  

1987 ◽  
Vol 65 (7) ◽  
pp. 1468-1477 ◽  
Author(s):  
Jean-Claude Boissière ◽  
Marie-Claude Boissière ◽  
Patrick Champion-Arnaud ◽  
Richard Lallemant ◽  
Jean Wagner

The isolation and culture of Nostoc symbionts of four Peltigera and of Collema tenax has revealed the presence of a biological cycle. Our observations, taken in conjunction with those of other authors on free-living species, suggest that the photosymbiont of Peltigera canina, P. rufescens, P. horizontalis, and P. spuria is Nostoc punctiforme (Kütz.) Hariot, that of Collema tenax is Nostoc commune Vauch. In the lichen thallus, Nostoc is at the stage called "punctiforme." This stage stays stable as long as the thallus is undamaged. If wounding occurs, the opening of the polysaccharide sheath of the trichomes causes motile hormogonia to escape. These, in nature, colonize the squamuliform isidia of Peltigera praetextata and, in culture, they allow isolation of Nostoc strains from the lichens studied.


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