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Diversity and ecological characterization of sporulating higher filamentous marine Fungi associated with Spartina maritima (Curtis) Fernald in two Portuguese salt marshes

  • Articles in SCI Journals
  • Aug, 2015

Calado, M.L., Carvalho, L., Pang, K.-L. & Barata, M. (2015) Diversity and ecological characterization of sporulating higher filamentous marine Fungi associated with Spartina maritima (Curtis) Fernald in two Portuguese salt marshes.

Microbial Ecology, 70, 612-633. DOI:10.1007/s00248-015-0600-0 (IF2015 3,232; Q1 Ecology)
Summary:

Fungal communities associated with early stages of decomposition of Spartina maritima (Curtis) Fernald were assessed in two geographically distinct salt marshes in Portugal by direct observation of fungal sporulating structures. Twenty-three fungal taxa were identified from 390 plant samples, 11 of which were common to both study sites. Natantispora retorquensByssothecium obiones,Phaeosphaeria spartinicolaPhoma sp. 1 and Stagonospora sp. were the most frequent fungal taxa in the studied communities. The fungal species Anthostomella spissitectaCamarosporium roumegueriiConiothyrium obionesDecorospora gaudefroyiHalosarpheia trulliferaLeptosphaeria marina and Stagonospora haliclysta were recorded for the first time on S. maritima plants; with the exception of C. roumeguerii and L. marina, all of these species were also new records for Portugal. The differences between species composition of the communities associated with S. maritima were attributed to differences in abiotic conditions of the salt marshes. Although the fungal taxa were distributed differently along the host plants, common species to both fungal communities were found on the same relative position, e.g. B. obionesLulworthia sp. and N. retorquens occurred on the basal plant portions, Buergenerula spartinaeDictyosporium pelagicum and Phoma sp. 1 on the middle plant portions and P. spartinicola and Stagonospora sp. on the top plant portions. The distinct vertical distribution patterns reflected species-specific salinity requirements and flooding tolerance, but specially substrate preferences. The most frequent fungi in both communities also exhibited wider distribution ranges and produced a higher number of fruiting structures, suggesting a more active key role in the decay process of S. maritima


http://link.springer.com/article/10.1007/s00248-015-0600-0