Effects of solar UV radiation on morphology and photosynthesis of filamentous cyanobacterium Arthrospira platensis

Article Abstract:

The morphological changes and photosynthetic performance are examined to study the impact of solar UV radiation on the filamentous cyanobacterium Arthrospira platensis. Results suggest that the increase in UV-B irradiance due to ozone depletion not only might affect photosynthesis but also might alter the morphological development of filamentous cyanobacteria during acclimation or over adaptive time scales.

Ultraviolet radiation, Ozone layer depletion, Genetic research, Photosynthesis

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Luminescent whole-cell cyanobacterial bioreporter for measuring Fe availability in diverse marine environments

Article Abstract:

The luminescence of a synechococcus sp. strain PCC 7002 Fe bioreporter was characterized with respect to the free ferric ion concentration in trace metal-buffered synthetic medium. The implementation of a living system like bioreporter organism would assist in gaining a better understanding of the availability of Fe from the perspective of a living cell, particularly for picocyanobacteria of marine systems.

Luminescence

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Different genotypes of anatoxin-producing cyanobacteria coexist in the Tarn River, France

Article Abstract:

Cyanobacterial neurotoxic alkaloid anatoxin is detected in the extracts of water samples from the shores of the Tarn River in southern France. Benthic neurotoxic cyanobacteria are the likely cause for the dog deaths at the river.

France, Bacterial toxins, Alkaloids

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