Transmission, plasticity and the molecular identification of cyanobacterial symbionts in the Red Sea sponge Diacarnus erythraenus

Matan Oren, Laura Steindler, Micha Ilan

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

Cyanobacterial symbionts in the sponge Diacarnus erythraenus from the Red Sea were identified in both adult sponges and their larvae by 16S rDNA sequencing. A single cyanobacterial type was found in all samples. This cyanobacterial type is closely related to other sponge cyanobacterial symbionts. The cyanobacterial rDNA, together with the morphological analysis by electron and fluorescence microscopy, provided evidence for vertical transmission of the symbionts in this sponge. In addition, we show phenotypic plasticity of the symbionts inside the sponge, probably as a result of variability in light availability inside the sponge tissue. Finally, the reproduction of Diacarnus erythraenus is also described.

Original languageEnglish
Pages (from-to)35-41
Number of pages7
JournalMarine Biology
Volume148
Issue number1
DOIs
StatePublished - Nov 2005
Externally publishedYes

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