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Engineered ketocarotenoid biosynthesis in the polyextremophilic red microalga 10D.
Metab Eng Commun
December 2023
Arizona Center for Algae Technology and Innovation, Arizona State University, 7418 Innovation Way South, Mesa, AZ, 85212, United States.
The polyextremophilic Cyanidiophyceae are eukaryotic red microalgae with promising biotechnological properties arising from their low pH and elevated temperature requirements which can minimize culture contamination at scale. 10D is a cell wall deficient species with a fully sequenced genome that is amenable to nuclear transgene integration by targeted homologous recombination. maintains a minimal carotenoid profile and here, we sought to determine its capacity for ketocarotenoid accumulation mediated by heterologous expression of a green algal β-carotene ketolase (BKT) and hydroxylase (CHYB).
View Article and Find Full Text PDFGlobal distribution and diversity of marine euendolithic cyanobacteria.
J Phycol
December 2022
Coastal Research Group, Department of Zoology and Entomology, Rhodes University, Makhanda (Grahamstown), South Africa, 6139.
Euendolithic, or true-boring, cyanobacteria actively erode carbonate-containing substrata in a wide range of environments and pose significant risks to calcareous marine fauna. Their boring activities cause structural damage and increase susceptibility to disease and are projected to only intensify with global climate change. Most research has, however, focused on tropical coral systems, and limited information exists on the global distribution, diversity, and substratum specificity of euendoliths.
View Article and Find Full Text PDFAnthropogenic Anoxic History of the Tuvalu Atoll Recorded as Annual Black Bands in Coral.
Sci Rep
April 2020
Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, Tsukuba, Japan.
Atoll islands are small, low-lying and highly vulnerable to sea level rise (SLR). Because these islands are fully composed of the skeletons from coral reef creatures, the healthy coral ecosystem plays a pivotal role in island resilience against SLR. The environmental deterioration of reefs caused by increases in the human population has been recently reported, but the timing and process are unknown.
View Article and Find Full Text PDFMassive bioconstructions built by Neopycnodonte cochlear (Mollusca, Bivalvia) in a mesophotic environment in the central Mediterranean Sea.
Sci Rep
April 2020
Dipartimento di Biologia, Università degli Studi di Bari Aldo Moro, Via Orabona 4 - 70125, Bari, Italy.
The present paper provides a multidisciplinary fine-scale description of a Mediterranean mesophotic new habitat dominated by the bivalve Neopycnodonte cochlear (Poli, 1795), building large and thick pinnacles on vertical cliffs at two study areas along the southern Italian coast. The pinnacles, constituted by a multilayered aggregation of living and dead specimens of N. cochlear, were interconnected with each other to form a framework of high structural complexity, never observed before for this species.
View Article and Find Full Text PDFDown to the bone: the role of overlooked endolithic microbiomes in reef coral health.
ISME J
February 2020
Red Sea Research Center, Biological and Environmental Sciences and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
Reef-building corals harbour an astonishing diversity of microorganisms, including endosymbiotic microalgae, bacteria, archaea, and fungi. The metabolic interactions within this symbiotic consortium are fundamental to the ecological success of corals and the unique productivity of coral reef ecosystems. Over the last two decades, scientific efforts have been primarily channelled into dissecting the symbioses occurring in coral tissues.
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