Toxicity of three herbicides to some nitrogen-fixing cyanobacteria.

  title={Toxicity of three herbicides to some nitrogen-fixing cyanobacteria.},
  author={Alok Kumar Mishra and Ayodhya Pandey},
  journal={Ecotoxicology and environmental safety},
  volume={17 2},
The effects of some common rice field herbicides, such as 2,4-dichlorophenoxyacetic acid (2,4-D), Machete, and Saturn, on the paddy field nitrogen-fixing cyanobacteria Nostoc linckia, Nostoc calcicola, Nostoc sp., and Anabaena doliolum were studied. These cyanobacteria were found to be more tolerant to 2,4-D (lethal doses 1500-2000 micrograms/ml) than to Machete and Saturn (lethal doses 6-8 micrograms/ml). The effects of these three herbicides on some physiological processes of N. linckia were… CONTINUE READING