Ulvella (alga)
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| Ulvella | |
|---|---|
_(6358285809).jpg) | |
| Ulvella scutata | |
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Ulvales |
| Family: | Ulvellaceae |
| Genus: | Ulvella P.L.Crouan & H.M.Crouan, 1859 |
| Type species | |
| Ulvella lens P.L.Crouan & H.M.Crouan | |
Ulvella is a genus of endophytic microalgae in the family Ulvellaceae. Species of Ulvella are found growing within or on other algae, plants, or shells.[1][2] Most species are found in marine habitats, but a few grow in fresh waters.[2]
Ulvella consists of thalli in various forms, ranging from uniseriate (one cell thick) filaments, pseudoparenchymatous discs of filaments, hollow masses of cells, or some combination thereof. Vegetative cells contain a single parietal lobed chloroplast with one or several pyrenoids. Some cells produce long hair-like extensions of the cells (setae).[2]
Ulvella reproduces asexually and sexually. Asexual reproduction occurs via zoospores with two, three or four flagella, which are produced in bottle-shaped or elongated sporangia. Sexual reproduction is anisogamous, with biflagellate gametes. The life history of Ulvella involves an alternation of generations, with haploid and diploid generations being isomorphic.[2]
