|
Description: |
Light green filaments, 10 cm long, growing attached to the substrate, and mostly grouped in tufts. Filament unbranched, growing in flocks or communities attached to sand covered or bare rocky substratum, 2-3 cm in height, yellowish green in color. Cells cylindrical, apical cells 111.2-111.5 µm in length and110.5-111.6 µm in breadth, middle cells 54.5-62.2 µm in length and 88.8-89.2 µm in breadth, basal cell much longer than the middle and upper one, showing its length 133.32-144.5 µm and breadth 55.50-58.8 µm, sheath 17-22.5 µm in thickness, sometimes lamellate in mature portion (GHOSH & KESHRI, 2010). Similar species: Burrows suggests that Chaetomorpha aerea (growing attached to the substrate) could be conspecific of Chaetomorpha linum (Mueller) Kuetzing (usually found unattached and resting on stones and other algae): in this case, Chaetomorpha linum would be the correct Specific name. Original publication: Kützing, F.T. (1849). Species algarum. pp. [i]-vi, [1]-922. Lipsiae [Leipzig]: F.A. Brockhaus.
 Download PDF from Alagaebase
|
| Biogeography |
Diffused in Mediterranean, Black Sea, North-Eastern Atlantic (from Scandinavia to Portugal) North-western Atlantic. |
| Uses and compounds |
Ethanol, methanol, acetone, and dichloroethane crude extracts from Chaetomorpha aerea were tested against ten bacterial pathogens. The maximum antibacterial activity was recorded from ethanol extract against Pseudomonos aeruginosa. Minimum activity was noted in methanol extracts against Micrococcus sp. and Salmonella typhi (Umamaheswari et al., 2010). |
| References |
Klotchkova, T.A., Chah, O.-K., West, J.A. & Kim, G.H. (2003). Cytochemical and ultrastructural studies on protoplast formation from disintegrated cells of the marine alga Chaetomorpha aerea (Chlorophyta). European Journal of Phycology 38: 205-216.
Patel, R.J. (1971). Cytotaxonomical studies of British marine species of Chaetomorpha - I Chaetomorpha linum Kütz., and Chaetomorpha aerea Kütz.. Phykos 10: 127-136.
|
| Habitat: |
Ephemeral species, found in intertidal environment, in both exposed and sheltered stations. |
| Type information: |
Basiony: Conferva aerea Dillwyn Type locality: Cromer, Norfolk, England (Lipkin & Silva 2002: 55). Type: D. Turner; BM-K (Lipkin & Silva 2002: 55). Notes: Syntypes: various in England and Wales (Silva et al. 1996). According to Womersley (1984: 174) the type is from Cromer, England; in BM (ex K). |
![Download 'Description and Drawings (in French)' [Visivel]](/macoi/intra/imagens/download.gif "Download 'Description and Drawings (in French)' [Visivel]")