Yellow-green algae

Yellow-green algae or xanthophytes are an important group of heterokont algae. Most live in freshwater, but some are found in marine and soil habitats. They vary from single-celled flagellates to simple colonial and filamentous forms. Unlike other heterokonts, their chloroplasts do not contain fucoxanthin, which accounts for their lighter colour. They appear to be the closest relatives of the brown algae.

Orders

The Xanthophyceae have been divided into the following four orders in some classification systems:

Order Botrydiales
Asterosiphon
Botrydium
Order Mischococcales
Botrydiopsis
Botryochloris
Bumilleriopsis
Chlorellidium
Mischococcus
Monodus
Ophiocytium
Pleurochloris
Pseudobumilleriopsis
Sphaerosorus
Order Tribonematales Pascher
Bumilleria
Heterococcus
Heterothrix
Tribonema
Xanthonema
Order Vaucheriales Nägeli ex Bohlin
Vaucheria

Recent ultrastructural and molecular phylogenetic DNA (nuclear and plastid) research shows that the Mischococcales might be paraphyletic, and the Tribonematales and Botrydiales polyphyletic, and suggests two orders at most be used until the relationships within the division are sorted.

Translation of "Yellow-green algae"

Czech: Různobrvky, German: Gelbgrüne Algen, Estonian: Eriviburvetikad, Spanish: Xanthophyta, French: Xanthophyceae, Hebrew: צהוביות, Georgian: მოყვითალო-მწვანე წყალმცენარეები, Lithuanian: Gelsvadumbliai, Hungarian: Sárgászöld moszatok, Polish: Różnowiciowce, Portuguese: Xanthophyceae, Russian: Жёлто-зелёные водоросли, Serbian: Жутозелене алге, Finnish: Keltalevät, Chinese: 黄藻.