Trentepohlia


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Trentepohlia

 

a genus of green algae of the class Ulotricho-phyceae. There are about 60 species. The algae form a brick-red or yellow powdery coating on tree barks, rocks, and walls of buildings. The thallus, which consists of weakly branching spreading and ascending filaments, is formed from a single row of cells. The cells have a lamellate membrane, disklike chloroplasts lacking pyrenoids, and drops of oil with heterochromatic substances. The color of the thallus is determined by these substances. There are no vacuoles. The algae reproduce asexually by means of parts of the filaments, individual cells, and zoospores. Sexual reproduction (isogamy) also occurs.

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Of the 100 species of lichen-forming fungi, the majority (80 species, 80%) was associated with green coccoid algal photobionts and 17 species (17%) were associated with the chain-forming green algal photobiont Trentepohlia. Lichen-forming fungi that associate with Trentepohlia are more diverse and frequent in tropical regions (Aptroot & van Herk 2007, Marini et al.
Hirano, "Removal of nitrate, nitrite, ammonium and phosphate ions from water by the aerial microalga Trentepohlia aurea," Journal of Applied Phycology, vol.
To the best of our knowledge, no specific study has been conducted to see the response of Desmococcus or Trentepohlia towards any stress factor.
Ultrastructure of plasmodesmata and cross walls in Cephaleuros, Phycopeltis, and Trentepohlia (Chroolepidaceae, Chlorophyta).
CHARACTER TAXA OF THE CLASS: Apatococcus lobatus, Desmococcus olivaceus, Klebsormidium flaccidum, Porphyridium purpureum, Prasiola crispa, Rosenvingiella radicans, Schizogonium murale, Trentepohlia abietina, Trentepohlia umbrina.
El fotobionte es siempre Trentepohlia. Los ascomas son apotecios, con o sin excipulo talino, frecuentemente pruinosos, con un hipotecio muy desarrollado, castano o negro y un epitecio tambien negro.
As macroscopic observation of red staining suggested that the alga Trentepohlia was certainly present, we assume that the standard media used by Thor were not suitable for the growth of all microorganisms, and especially not for algae.
Baloch and Grube (2006) found in the Porinaceae that the lichen species contained a wide range of different Trentepohlia species many of which are known to occur unlichenized.
It can be confused with Julella, which lacks a photobiont while Anisomeridium has Trentepohlia.
Key Words: cave algae, lichens, microlichens, Physolinum, Trentepohlia