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| Authors | Mohamed, DJ; Martiny, JBH |
| Author Full Name | Mohamed, Devon J.; Martiny, Jennifer B. H. |
| Title | Patterns of fungal diversity and composition along a salinity gradient |
| Source | ISME JOURNAL |
| Language | English |
| Document Type | Article |
| Author Keywords | community composition; estuary; fungi; ribosomal RNA; salinity |
| Keywords Plus | AMMONIA-OXIDIZING BACTERIA; MICROBIAL COMMUNITIES; PLANT DIVERSITY; MYCORRHIZAL FUNGI; SOIL; BIODIVERSITY; PRODUCTIVITY; BIOGEOGRAPHY; SUCCESSION; SEDIMENTS |
| Abstract | Estuarine salinity gradients are known to influence plant, bacterial and archaeal community structure. We sequenced 18S rRNA genes to investigate patterns in sediment fungal diversity (richness and evenness of taxa) and composition (taxonomic and phylogenetic) along an estuarine salinity gradient. We sampled three marshes-a salt, brackish and freshwater marsh-in Rhode Island. To compare the relative effect of the salinity gradient with that of plants, we sampled fungi in plots with Spartina patens and in plots from which plants were removed 2 years prior to sampling. The fungal sediment community was unique compared with previously sampled fungal communities; we detected more Ascomycota (78%), fewer Basidiomycota (6%) and more fungi from basal lineages (16%) (Chytridiomycota, Glomeromycota and four additional groups) than typically found in soil. Across marshes, fungal composition changed substantially, whereas fungal diversity differed only at the finest level of genetic resolution, and was highest in the intermediate, brackish marsh. In contrast, the presence of plants had a highly significant effect on fungal diversity at all levels of genetic resolution, but less of an effect on fungal composition. These results suggest that salinity (or other covarying parameters) selects for a distinctive fungal composition, and plants provide additional niches upon which taxa within these communities can specialize and coexist. Given the number of sequences from basal fungal lineages, the study also suggests that further sampling of estuarine sediments may help in understanding early fungal evolution. The ISME Journal (2011) 5, 379-388; doi: 10.1038/ismej.2010.137; published online 30 September 2010 |
| Author Address | [Mohamed, Devon J.; Martiny, Jennifer B. H.] Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA; [Mohamed, Devon J.] Brown Univ, Dept Ecol & Evolutionary Biol, Providence, RI 02912 USA |
| Reprint Address | Martiny, JBH (corresponding author), Univ Calif Irvine, Dept Ecol & Evolutionary Biol, 321 Steinhaus, Irvine, CA 92697 USA. |
| E-mail Address | jmartiny@uci.edu |
| ResearcherID Number | Martiny, Jennifer/AAB-9323-2019; Guan, Xiaokang/A-6675-2012 |
| ORCID Number | Martiny, Jennifer/0000-0002-2415-1247 |
| Funding Agency and Grant Number | NSFNational Science Foundation (NSF) [MCB-0701494]; Gordon and Betty Moore FoundationGordon and Betty Moore Foundation |
| Funding Text | We gratefully acknowledge Keryn Bromberg Gedan, Caitlin Mullan Crain and Mark Bertness for the establishment and maintenance of field sites. We are indebted to Claudia Weihe, Manasa Panda, Sneha Pathak, Mani Vahidi and Heather Reed for laboratory help. We also thank Steven Allison, Keryn Bromberg Gedan, Adam Martiny and several anonymous reviewers for comments that greatly improved the manuscript. This work was supported by an NSF Graduate Research Fellowship to DJB, NSF grant MCB-0701494, and the Gordon and Betty Moore Foundation. |
| Times Cited | 100 |
| Total Times Cited Count (WoS, BCI, and CSCD) | 103 |
| Publisher | NATURE PUBLISHING GROUP |
| Publisher City | LONDON |
| Publisher Address | MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND |
| ISSN | 1751-7362 |
| 29-Character Source Abbreviation | ISME J |
| ISO Source Abbreviation | ISME J. |
| Publication Date | MAR |
| Year Published | 2011 |
| Volume | 5 |
| Issue | 3 |
| Beginning Page | 379 |
| Ending Page | 388 |
| Digital Object Identifier (DOI) | 10.1038/ismej.2010.137 |
| Page Count | 10 |
| Web of Science Category | Ecology; Microbiology |
| Subject Category | Environmental Sciences & Ecology; Microbiology |
| Document Delivery Number | 756NZ |
| Unique Article Identifier | WOS:000290021000002 |
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