Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Influence of conidial traits and leaf structure on attachment success of aquatic hyphomycetes on leaf litter

Abstract : Attachment of conidia on leaves is a critical first step in the life cycle of aquatic hyphomycetes in streams. In a first series of microcosm experiments, attachment success of three common aquatic hyphomycete species differing in conidial shape (compact, filiform and tetraradiate) was determined on two leaf species, black alder and downy oak. Fungal species identity and leaf surface structure significantly affected conidial attachment after 24 h. The lower sides of oak leaves with extensive tufts trapped 2.4-8.8 more conidia than the upper sides of oak leaves and both sides of alder leaves. In a second experiment with seven fungal species, attachment success of two species with tetraradiate conidia was much greater than that of two other tetraradiate and three compact conidia, which all had similar attachment success. The species with the largest spores was also the most successful, but this pattern was not consistent across the size range of tested conidia. These results highlight the importance of leaf surface structure, possibly conidial shape and size and additional properties of aquatic hyphomycete conidia in determining attachment success on leaves and they point to the potential role of these factors. in structuring fungal communities on decomposing leaves in streams.
Complete list of metadata
Contributor : Open Archive Toulouse Archive Ouverte (OATAO) Connect in order to contact the contributor
Submitted on : Thursday, April 14, 2016 - 8:42:41 AM
Last modification on : Monday, July 4, 2022 - 9:26:01 AM
Long-term archiving on: : Friday, July 15, 2016 - 10:30:14 AM


Files produced by the author(s)




Christian K. Dang, Mark O. Gessner, Eric Chauvet. Influence of conidial traits and leaf structure on attachment success of aquatic hyphomycetes on leaf litter. Mycologia, Mycological Society of America, 2007, 99 (1), pp.24-32. ⟨10.3852/mycologia.99.1.24⟩. ⟨hal-01302323⟩



Record views


Files downloads