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Volvox aureus
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Volvox aureus

green algae
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Quick Summary

Volvox aureus is a species of freshwater green algae found worldwide. These algae form hollow, spherical colonies, often visible to the naked eye, containing thousands of cells embedded in a gelatinous layer.1

Volvox colonies are studied for their development of specialized cells, showing differentiation between non-reproductive (somatic) and reproductive cells. This characteristic is significant in understanding the evolution of complex organisms. Each somatic cell has flagella for movement, a chloroplast for photosynthesis, and an eyespot for light detection. Cells communicate via cytoplasmic strands, and the colony moves through coordinated flagellar action.1

Volvox reproduces both asexually and sexually. Asexual reproduction involves reproductive cells called gonidia, which form daughter colonies. Sexual reproduction involves the development of ova and spermatozoa, leading to zygotes that can survive as resting stages. Volvox aureus can contribute to harmful algal blooms in nutrient-rich waters.1

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2 Britannica Sources
  1. Volvox
  2. volvocid

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