An endoevaporitic microbial mat within a gypsum crust: zonation of phototrophs, photopigments, and light penetration

A. Oren, M. Kuhl, U. Karsten

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

A layered community of cyanobacteria and purple bacteria that developed within a gypsum crust on the bottom of a hypersaline saltern pond was characterized in Eilat, Israel. The upper 1 to 2 cm of the 4 to 5 cm thick gypsum crust is inhabited by carotenoid-rich unicellular cyanobacteria (Aphanothece sp. and others), imparting an orange-brown color to the gypsum. Under the brown layer, a green layer dominated by unicellular cyanobacteria of the genus Synechococcus is found, with filamentous Phormidium-type cyanobacteria as a minor component. Below these layers of oxygenic phototrophs is a red layer of purple bacteria. -from Authors

Original languageAmerican English
Pages (from-to)151-159
Number of pages9
JournalMarine Ecology - Progress Series
Volume128
Issue number1-3
DOIs
StatePublished - 1995

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