Calcidiscus leptoporus and Syracolithus quadriperforatus, co
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Calcidiscus leptoporus and Syracolithus quadriperforatus, co
In this scanning electron micrograph, the transition of a life-cycle stage in Calcidiscus is shown from the outer cover to the inner layer. Specimen taken from W. Mediterranean
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Alga Algae Algal Calcite Calcite Group Carbonate Carbonate Mineral Chromalveolata Chromista Coccolith Coccolithophore Coccolithophorid Cycle Electron Electron Micrograph Eukaryote Eukaryotic Haptophyta Haptophyte Mediterranean Micrograph Microscope Microscope Image Microscopic
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In this scanning electron micrograph, we witness the intricate transformation of a life-cycle stage in the coccolithophore algae, Calcidiscus leptoporus, as it progresses from the outer cover to the inner layer. The image, taken from a specimen sourced in the Western Mediterranean, offers a mesmerizing glimpse into the microscopic world of these eukaryotic organisms. Coccolithophores, classified within the Chromalveolata sub-group of the Chromista kingdom, are renowned for their distinctive calcite plates or coccoliths, which they use for protection and buoyancy. Calcidiscus leptoporus, a member of the Calcidiscaceae family, is no exception. The micrograph reveals the intricate calcite structures of this alga, with the outer cover, or epitheca, displaying a complex, interconnected network of platelets. As we delve deeper into the specimen, we observe the development of the inner layer, or hypotheca, where newly formed, smaller platelets begin to coalesce, eventually forming a dense, hexagonal lattice. The coccoliths of Calcidiscus leptoporus belong to the Calcite Group, a classification of calcite minerals that are produced by various haptophytes, including coccolithophores. The presence of these calcite structures in the Mediterranean Sea is a testament to the rich biodiversity of this ecosystem and the crucial role that coccolithophores play in carbonate production and oceanic biogeochemical cycles. This micrograph serves as a reminder of the breathtaking complexity and intricacy that exists at the microscopic level, inviting us to explore further the wonders of the natural world.
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