What is a characteristic of stramenopiles?

What is a characteristic of stramenopiles?

Stramenopiles is a monophyletic eukaryotic group characterized by the presence of two flagella, of which the immature flagellum bears tripartite hairs.

What makes stramenopiles unique?

The unifying feature of this group is the presence of a textured, or “hairy,” flagellum. Many stramenopiles also have an additional flagellum that lacks hair-like projections. Members of this subgroup range in size from single-celled diatoms to the massive and multicellular kelp.

How many species of stramenopiles are there?

100,000 species
That can be the case with stramenopiles, a large group of organisms composed of cells with a distinct form of chlorophyll. There are roughly 100,000 species of different stramenopiles, most of which are various types of algae.

Do all stramenopiles have flagella?

The Stramenopiles are a very large algal kingdom presently included in the Chromalveolata. They range in size from single-celled diatoms to giant multicellur kelp. They all, however, have distinctive flagella in the mobile, single-celled form found at some point in their life cycle.

What are examples of Archaeplastida?

Kingdom Archaeplastida is a taxonomic group comprised of land plants, green algae, red algae, and glaucophytes. It is sometimes used in synonymous to Plantae. However, the stricter use of the term Plantae is one that which includes only the land plants and green algae.

Do stramenopiles reproduce asexually?

Asexual reproduction by means of binary fission, zoosporogenesis, sporogenesis etc. Isogamy to oogamy are known in the sexual reproduction of stramenopiles. Although stramenopiles usually show diplontic life cycle (opalinids, oomycetes, diatoms, Raphidophyceae), the life cycle of brown algae is veried.

Are oomycetes stramenopiles?

The oomycetes comprise the largest group of non-photosynthesizing stramenopiles. Stramenopiles share some distinguishing structural features, such as tubular cristae in their mitochondria and motile asexual spores.

Are Oomycetes stramenopiles?

Do only bacteria have flagella?

A flagellate can have one or several flagella. Flagella vary greatly among the three domains of life, bacteria, archaea, and eukaryotes. All three kinds of flagella can be used for swimming but they differ greatly in protein composition, structure, and mechanism of propulsion. The word flagellum in Latin means whip.

What is the difference between plants and Archaeplastida?

How are archaeplastida different from plants? 1. Archaeplastida is the protist supergroup that includes red algae, green algae, and land plants. The red algae and green algae are photosynthetic protists and land plants are part of the Kingdom Plantae.

Where can Archaeplastida be found?

Red algae are common in tropical waters where they have been detected at depths of 260 meters. Other red algae exist in terrestrial or freshwater environments.

Why oomycetes are called oomycetes?

The oomycetes are also often referred to as water molds (or water moulds), although the water-preferring nature which led to that name is not true of most species, which are terrestrial pathogens. Oomycetes were originally grouped with fungi due to similarities in morphology and lifestyle.

What kind of organisms are the Stramenopiles?

Stramenopiles (also called the heterokonts) are a vast and complex group of organisms that consist of both photosynthetic and nonphotosynthetic cell types as well as unicellular and multicellular species (Andersen, 2004 ).

Where are the hairs located in a stramenopile?

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.

Why are the chloroplasts of stramenopile algae green?

Chloroplasts and pigments. The chloroplasts are discoid but lack the girdle lamella present in all other classes of stramenopile algae. Color of the chloroplasts is green or yellow-green because fucoxanthin, the brown pigment of many other stramenopile algae, is absent (as in the Xanthophyceae).