Trichome filament

Soon after the HOT time-series began, Leteher and Karl (1996) confirmed that a key N2 fixing species, Trichodesmium, exists in situ as both free trichomes (single filaments) and in the more commonly reported colonial trichome morphologies (fusiform or tuft and spherical or puff ), at Station ALOHA. Based on approximately monthly samphng between October 1989 and December 1992, the average... 

In a micro-autography study, field collected Rhizosolenia-Richelia symbioses were incubated with C-labeUed bi-carbonate. Higher density of silver grains localized on the symbiotic Richelia trichomes than on the host Rhizosolenia filaments, suggesting that the Richelia were actively photosynthesizing and the host diatom were inactive (Weare et al., 1974). An equally plausible explanation for less silver grains on the Rhizosolenia host is that some of the fixed and labeled photosynthetic products were transferred to the host from the symbiont. Similar scenarios of carbon, and nitrogen transfer, are well documented in terrestrial... 

Trichome a many-celled, frequently-branched, filament of bacterial or, less frequently algae. 

Trichosperical a term applied to a spherical microcolony (of microorganisms) consisting of filaments (or trichomes) growing radially from a common centre. 

The simplest cyanobacteria are unicellular rods or cocci, which reproduce by binary fission or budding (a few species)., Many cyanobacteria have a filamentous structure. The filament of cells, called trichome, elongates by intercalary division and reproduces by breaJcage. The trichome can be composed only of vegetative cells. Some vegetative cells are converted into non-reproductive cells known as heterocysts with a special physiological function. 

De Winder B., Stal L.J., and Mur L.R. 1990. Crinalium epipsammum sp. now a filamentous cyanobacterium with trichomes composed of elliptical cells and containing poly-P-(l,4)-glucan (cellulose). J General Microbiol 136 1645-1653. 

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