CYANIDIA (CYANIDIALES) POPULATION DIVERSITY AND DYNAMICS IN AN ACID-SULFATE-CHLORIDE SPRING IN YELLOWSTONE NATIONAL PARK

Fire in 1988 created a situation that allowed a rare aspen seedling recruitment event to occur within Yellowstone National Park. Through the use of (i) 194 randomly amplified polymorphic DNA (RAPD) markers from 14 select primers, (ii) measures of population diversity, and (iii) neighbor-joining analysis it was determined that the postfire aspen seedling population contains greater diversity within each of the four sampled stands than that found within all of the 10 sampled mature aspen stands that pre-existed the fire. Unlike previous studies, a large portion of the molecular variation in both the seedling and mature populations was partitioned among stands. Furthermore, variation was unexpectedly detected among ramets within each mature stand. The mature stands appear to be clonally derived, yet individual ramets within stands varied slightly and incrementally in their RAPD profile. These data suggest that somatic mutations may be occurring and accumulating in clonal aspen stands. A proposed scenario of stand establishment and development involving the accumulation of somatic mutations and elimination of genetically related seedlings arising from a rare founder event provides the theoretical basis for the observed differences among and within seedling and mature stands of aspen in Yellowstone National Park.

Download Full-text

Biomineralization of As(V)-hydrous ferric oxyhydroxide in microbial mats of an acid-sulfate-chloride geothermal spring, Yellowstone National Park

Geochimica et Cosmochimica Acta ◽

10.1016/j.gca.2003.09.020 ◽

2004 ◽

Vol 68 (15) ◽

pp. 3141-3155 ◽

Cited By ~ 72

Author(s):

William P Inskeep ◽

Richard E Macur ◽

Gregory Harrison ◽

Benjamin C Bostick ◽

Scott Fendorf

Keyword(s):

Yellowstone National Park ◽

National Park ◽

Microbial Mats ◽

Acid Sulfate ◽

Geothermal Spring ◽

Ferric Oxyhydroxide

Download Full-text

Sulfur geochemistry of hydrothermal waters in Yellowstone National Park: IV Acid–sulfate waters

Applied Geochemistry ◽

10.1016/j.apgeochem.2008.11.019 ◽

2009 ◽

Vol 24 (2) ◽

pp. 191-207 ◽

Cited By ~ 81

Author(s):

D. Kirk Nordstrom ◽

R. Blaine McCleskey ◽

James W. Ball

Keyword(s):

Yellowstone National Park ◽

National Park ◽

Acid Sulfate

Download Full-text

Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100072757 ◽

1973 ◽

Vol 31 ◽

pp. 462-463

Author(s):

M. R. Edwards ◽

J. D. Mainwaring

Keyword(s):

Yellowstone National Park ◽

National Park ◽

Ultrastructural Localization ◽

Review Of Literature ◽

Cyanidium Caldarium ◽

Taxonomic Rank ◽

Thin Sections ◽

Standard Methods ◽

Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

Download Full-text