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Bubble Algae (Valonia ventricosa) Saltwater Marco Algae Single Cell

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has a coenocytic structure with multiple nuclei and chloroplasts.[5] This organism possesses a large central vacuole that is multilobular in structure (lobules radiating from a central spheroid region).

The entire cell contains several cytoplasmic domains, with each domain having a nucleus and a few chloroplasts.[5] Cytoplasmic domains are interconnected by cytoplasmic “bridges” that are supported by microtubules.[5] The peripheral cytoplasm (whose membrane is overlaid by the cell wall) is only about 40 nm thick.[5]

Valonia ventricosa typically grow individually, but in rare cases they can grow in groups.

They appear in tidal zones of tropical and subtropical areas, like the Caribbean, north through Florida, south to Brazil, and in the Indo-Pacific.[3] Overall, they inhabit every ocean throughout the world,[6] often living in coral rubble.[7] The greatest observed depth for viability is approximately 80 metres (260 ft).

The single-cell organism has forms ranging from spherical to ovoid, and the color varies from grass green to dark green, although in water they may appear to be silver, teal, or even blackish.[3] This is determined by the quantity of chloroplasts of the specimen.[7] The surface of the cell shines like glass when clean due to being extremely smooth with no texture.

Valonia ventricosa is among the largest known single-celled organisms. Its thallus consists of a thin-walled, tough, multinucleate cell with a diameter that ranges typically from 1 to 4 centimetres (0.4 to 1.6 in), although it may achieve a diameter of up to 5.1 centimetres (2.0 in) in rarer cases. The “bubble” alga is attached by rhizoids to the substrate fibers.[3]

Reproduction occurs by segregative cell division, where the multinucleate parent cell makes child cells, and individual rhizoids form new bubbles, which become separate from the parent cell.

ABOVE INFORMATION FROM https://en.wikipedia.org/wiki/Valonia_ventricosa

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