Spatiotemporal variability of cultivable microfungal communities inhabiting a playa area in the western Negev Desert,Israel |
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| Institution: | 1. Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia;2. Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia;3. Physical Oceanography Laboratory, Institute for Oceanography and Fisheries, Šetalište I. Meštrovića 63, 21000 Split, Croatia;4. Institute for Marine and Coastal Research, University of Dubrovnik, Kneza Damjana Jude 12, 20000 Dubrovnik, Croatia;5. GESTAR/Universities Space Research Association, 7178 Columbia Gateway Drive, Columbia, MD 21046, USA;6. NASA Goddard Space Flight Space Center, Greenbelt, MD 20771, USA;7. Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Villa Comunale, 80121 Naples, Italy |
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| Abstract: | The soil dilution plate method was used to examine spatiotemporal changes in microfungal communities inhabiting the playa and interdune areas in the western Negev Desert, Israel. Soil samples were collected from the 0–50 cm depth at 10 cm intervals at both habitats during the wet and dry seasons of 2010. Forty-six species belonging to 31 genera were identified, 14 and 12 species were common to both habitats during the wet and dry seasons. The colony-forming units (CFUs) ranged from 75 to 4875 and from 500 to 6925 CFU g−1 dry soil at the playa and interdune, respectively. More diverse species and higher microfungal density were recorded during the wet season compared to the dry season at both habitats, and the microfungal communities inhabiting the playa were characterized by lower species diversity and CFU compared with the interdune regardless of soil depth and sampling season. With the increase in soil depth, decreasing trends were found in both species diversity and CFU throughout the study period, especially in the playa soils. Generally, Cladosporium cladosporioides, Alternaria alternata, Ulocladium atrum, and Fusarium spp. were widespread at the playa with high relative abundance, as were Penicillium and Aspergillus spp. at both habitats. |
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