Publications

the biogeography and phylogeny of unicellular cyanobacterial symbionts in sponges from australia and the mediterranean.	the distribution, host associations, and phylogenetic relationships of the unicellular cyanobacterial symbionts of selected marine sponges were investigated with direct 16s rdna sequencing. the results indicate that the symbionts of the marine sponges aplysina aerophoba, ircinia variabilis, and petrosia ficiformis from the mediterranean, four chondrilla species from australia and the mediterranean, and haliclona sp. from australia support a diversity of symbionts comprising at least four closely ...	2004	15546037
impacts of shading on sponge-cyanobacteria symbioses: a comparison between host-specific and generalist associations.	the marine sponge lamellodysidea chlorea contains large populations of the host-specific, filamentous cyanobacterium oscillatoria spongeliae. other marine sponges, including xestospongia exigua, contain the generalist, unicellular cyanobacterium synechococcus spongiarum. the impact of cyanobacterial photosynthesis on host sponges was manipulated by shading these sponge-cyanobacteria associations. if cyanobacteria benefit their hosts, shading should reduce this benefit. chlorophyll a concentratio ...	2005	21676782
cryptic diversity of the symbiotic cyanobacterium synechococcus spongiarum among sponge hosts.	cyanobacteria are common members of sponge-associated bacterial communities and are particularly abundant symbionts of coral reef sponges. the unicellular cyanobacterium synechococcus spongiarum is the most prevalent photosynthetic symbiont in marine sponges and inhabits taxonomically diverse hosts from tropical and temperate reefs worldwide. despite the global distribution of s. spongiarum, molecular analyses report low levels of genetic divergence among 16s ribosomal rna (rrna) gene sequences ...	2008	18489545
diversity and abundance of photosynthetic sponges in temperate western australia.	photosynthetic sponges are important components of reef ecosystems around the world, but are poorly understood. it is often assumed that temperate regions have low diversity and abundance of photosynthetic sponges, but to date no studies have investigated this question. the aim of this study was to compare the percentages of photosynthetic sponges in temperate western australia (wa) with previously published data on tropical regions, and to determine the abundance and diversity of these associat ...	2009	19196460