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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Fungal root symbionts of the seagrasses Posidonia oceanica (Posidoniaceae) and Thalassodendron ciliatum (Cymodoceaceae)
 Soperová, Beáta ; Vohník, Martin (advisor) ; Mrnka, Libor (referee)
Seagrasses form an important part of the marine vegetation and its growth create a habitat for many other organisms. Equal to the terrestrial plants, seagrasses can associate with various fungal species ranging from the parasitic to the endophytic ones. Posidonia oceanica and Thalassodendron ciliatum, whose ontogenetic development are very similar, are considered to be the ones of the best studied seagrass. Seedlings of both species have a primary root densely covered with root hairs, which is later replaced by secondary roots. In the vast majority of cases, the adult P. oceanica and T. ciliatum do not form root hairs on the secondary roots. In the case of P. oceanica, this transition from roots with root hairs to roots lacking root hairs appears to be associated with interaction with endophytic fungi. The incidence of interaction with endophytic fungi is still unclear for T. ciliatum. A summary of existing knowledge of the root hairs and fungal root symbionts of P. oceanica and T. ciliatum has revealed an incomplete knowledge of the effect of endophytic fungi on roots and root hairs formation in P. oceanica and a complete absence of studies of T. ciliatum mycobionts. The summary has further led to the hypothesis of possible coevolution of endophytic fungi and seagrass P. oceanica.
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