Inactivation of photosynthetic electron flow during desiccation of desert biological sand crusts and Microcoleus sp.-enriched isolates.

@article{Ohad2005InactivationOP,
  title={Inactivation of photosynthetic electron flow during desiccation of desert biological sand crusts and Microcoleus sp.-enriched isolates.},
  author={Itzhak Ohad and Reinat Nevo and Vlad Brumfeld and Ziv Reich and Tom Tsur and Michael Yair and Aaron Kaplan},
  journal={Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology},
  year={2005},
  volume={4 12},
  pages={
          977-82
        }
}
Filamentous cyanobacteria, the main primary producers in biological sand crusts, survive harsh environmental conditions including diurnal desiccation/rehydration cycles. Here we describe the inactivation of photosystem II during dehydration of native crusts (NC) and Microcoleus sp. isolates grown on nitrocellulose filters (NCF). The morphology of NCF cells, visualized by scanning-transmission and atomic-force microscopy, disclosed long bacterial filaments encapsulated in extracellular… CONTINUE READING
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