Limnetica 34

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Variation in the synthesis of microcystin in response to saline and osmotic stress in Microcystis aeruginosa PCC 7806

Beatriz Martín-Luna, Emma Sevilla, M. Teresa Bes, María F. Fillat & M. Luisa Peleato
2015
34
1
205-214
DOI: 
10.23818/limn.34.16

The growth and synthesis of microcystin in Microcystis aeruginosa PCC7806 was studied in cells grown in the presence of NaCl or with sucrose. The saline stress caused a decrease in the transcript levels of mcyD, one of the genes involved in microcystin synthesis, which was correlated with a decrease in the content of microcystin-LR in the cells. The cells treated with sucrose also had reduced levels of mcyD transcripts and contents of microcystin-LR.

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