Molecular characterization of epiphytic bacterial communities on Charophycean green algae

Article Abstract:

Bacterial epiphytes of members of the Charophycean green algal group were characterized using the 16S rDNA method. Samples of 20 cloned sequences were obtained from the epiphytic bacterial communities composed of Desmidium grevilii, Hyalotheca dissiliens and Spondylosium pulchrum. None of the cloned sequences observed were identical to any sequences found through the Ribosomal Database Project. Results suggest that majority of the sequences represent bacterial species that have not yet been phenotypically described.

Bacterial genetics, Cloning, Green algae

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Detection and quantification of snow algae with an airborne imaging spectrometer

Article Abstract:

Researchers have measured the biomass of the snow alga Chlamydomonas nivalis in the Sierra Nevada range in California using NASA's Airborne Visible Infrared Imaging Spectrometer. This is possible because the carotenoids and chlorophylls a and b absorb at different wavelengths than snow without algae.

Usage, Measurement, Remote sensing, Spectrophotometer, Spectrophotometers

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Mercury analysis of acid- and alkaline-reduced biological samples: Identification of meta-cinnabar as the major biotransformed compound in algae

Article Abstract:

A study was conducted to investigate the biotransformation of Hg(super II) in pH-controlled and aerated algal cultures. It was observed that the biotransformation of Hg(super II) into meta-cinnabar, under aerobic conditions, occurred in both prokaryotic and eukaryotic algae.

Science & research, Identification and classification, Mercury compounds, Cinnabar

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