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Zoospores may possess one or more distinct types of flagella - tinsel or "decorated", and whiplash, in various combinations. Tinsellated (straminipilous [3]) flagella have lateral filaments known as mastigonemes perpendicular to their main axis, which allow for more surface area, and disturbance of the medium, giving them the property of a rudder, that is, used for steering.
Unlike some algae that reproduce through the production of autosporous (self-generating) spores, Asterochloris propagates through the release of zoospores or aplanospores. These spores are produced through successive cell divisions .
Algae primarily use three different types of spores for asexual reproduction - autospores, zoospores, and aplanospores. [3] Autospores occur in several groups of algae, including Eustigmatophyceae, Dinoflagellates, and green algae. One example of a colonial alga that produces autospores is Dichotomococcus.
In some rare cases, diploid spore is also produced in some algae, or fungi. [6] Under favourable conditions, the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote, which develops into a new sporophyte.
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. [2] They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral- or ribbon-shaped in different species.
Oedogonium is a genus of filamentous, free-living green algae. It was first discovered in the fresh waters of Poland in 1860 by W. Hilse, and later given its name by German scientist K. E. Hirn. The morphology of Oedogonium is unique, with an interior and exterior that function differently from one another and change throughout its life cycle.
The release or escape of alga zoospores from intact lichens is a source of free-living algae colonies or single free-living cells. Moreover, the same Trebouxia species can be associated with many mycobiont species or many Trebouxia strains can inhabit single lichen.
Chlamydomonas (/ ˌ k l æ m ɪ ˈ d ɒ m ə n ə s,-d ə ˈ m oʊ-/ KLAM-ih-DOM-ə-nəs, -də-MOH-) is a genus of green algae consisting of about 150 species [2] of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae". [3]