The front flagellum has tiny, three-part forked brstles running along each side (called mastigonemes). These organisms share morphological characteristics with fungi, but phylogenetic analysis has shown that they are not closely related. Stramenopiles (Fig. The other subgroup of chromalveolates, the stramenopiles, includes photosynthetic marine algae and heterotrophic protists. Microscopic and floating (about the size of a human red blood cell) Oval or elliptical shape, single cell alga; Has two hair-like short tails used for swimming and to attach to things, two saddle-shaped chloroplasts; Often blooms in large numbers 2. Diatoms are a single-celled algae with a unique silicon-based cell wall. This flagellum beats out a water current which moves the … While some lack cell walls, others have scales. Stramenopiles. Physical Characteristics. Ø Both groups undergo sexual reproduction. 2 In the petH phylogeny, at least 5 isoforms were recovered for Karenia. Stramenopiles have two flagella of different length, one at the front of the cell, and one attached further back. Many important photosynthesizers are stramenopiles and not all stramenopiles are single-celled. The unifying feature of this group is the presence of a textured, or “hairy,” flagellum. Neighboring taxonomic group: Based on the phylogenetic analysis with 18S rRNA, oomycetes are more related to Heterokontae which contain diatoms and golden-brown algae 2. Unique Characteristics: Our example is a Trypanosoma ... Stramenopiles 1. A group of non-photosynthetic stramenopiles is the Oomycetes, and there are over 600 described species. This group of protists have flagella with many short hair-like structures along the length of the flagella. Simpson, Y. Eglit, in Encyclopedia of Evolutionary Biology, 2016. A ‘hairy’ flagellum is often paired with a shorter, smooth flagellum. Ø Both groups produce spores as a mode of reproduction. Difference between Oomycetes and True Fungi (1). Stramenopiles (also known as heterokonts) usually have a flagellate stage in the life cycle that has a characteristic type of stiff tubular ‘hairs’ arranged in two rows on one flagellum (see Patterson, 1999).These flagellates swim in the direction the hair-bearing flagellum is pointing. The stramenopiles include the golden algae (Chrysophyta), the brown algae (Phaeophyta), and the diatoms (Bacillariophyta).Stramenopiles have chlorophyll a, chlorophyll c 1 /c 2, and fucoxanthin as photosynthetic pigments.Their storage carbohydrate is chrysolaminarin. Many stramenopiles also have an additional flagellum that lacks hair-like projections (Figure 9). Other articles where Stramenopiles is discussed: protozoan: Annotated classification: Stramenopiles Group consists of 4 heterotrophic clades and 15 predominantly autotrophic clades and contains many examples of secondarily-derived heterotrophs; in autotrophic groups, fucoxanthin is the dominant accessory pigment. 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