What is the example of Xanthophyceae?
Yellow-green algae or the Xanthophyceae (xanthophytes) are an important group of heterokont algae. Most live in fresh water, but some are found in marine and soil habitats….
| Yellow-green algae | |
|---|---|
| Phylum: | Ochrophyta |
| Class: | Xanthophyceae Allorge, 1930, emend. Fritsch, 1935 |
| Synonyms |
What is the pigment of Xanthophyceae?
Xanthophyceae is a class comprised of xanthophytes or the yellow-green algae. The color is due to the presence of pigments such as xanthophylls and beta carotene. They also have chlorophyll pigments. They have chlorophyll a and c.
Why Xanthophyta are called yellow green algae?
Like these other chromists however, they lack chlorophyll b, and instead have chlorophyll c. This gives them a characteristic yellowish-green color, as opposed to the golden color or their relatives, which may make them difficult to recognize as chromists.
What is the ecology of Xanthophyta?
Ecology. Xanthophyta are generally found in freshwater, wet soil and tree trunks, but there are several marine species. Most of the species occur singly and are found around other algae, making it difficult to find the same species twice. They do very well at low pH in habitats that are rich in iron.
What are the characteristics of Xanthophyta?
Commonly known as yellow-green algae, the Xanthophyta include one Class, Xanthophyceae, characterized by the following general features: (1) the photosynthetic pigments consist of chlorophyll-a and -e, β carotene and xanthophylls; of these, β carotene is usually present in fairly high concentrations; (2) the food …
What are the characteristics of Xanthophyceae?
Main characteristics of Xanthophyceae (Yellow Green algae)
- Mostly fresh water with unicellular to siphonous body.
- Cells are eukaryotic with silica and pectin in the cell wall.
- Chief pigments include chlorophyll a and e, beta carotene, neoxanthin and violaxanthin.
What type of pigments are characteristic features of Xanthophyta?
What are the reserve food materials found in Xanthophyceae?
Yellow-green algae or the Xanthophyceae are an important group of heterokont algae.
What is reserve food in Xanthophyta?
The Xanthophyceae are distinguished by their food reserve (oil), the quantity of β-carotene in their plastids, and motile cells with unequal flagella. Frequently their cell walls are two overlapping halves. The usual method of asexual reproduction is by motile zoospores or nonmotile resting aplanospores.
Are Xanthophyceae motile?
The Xanthophyceae are distinguished by their food reserve (oil), the quantity of β-carotene in their plastids, and motile cells with unequal flagella. Frequently their cell walls are two overlapping halves.
Which type of chlorophyll is rare in Xanthophyceae?
Chlorophyll b is absent.