Differences in the cell walls and extracellular polymers of the two Trebouxia microalgae coexisting in the lichen Ramalina farinacea are consistent with their distinct capacity to immobilize extracellular Pb

1. Casano, L.M.
2. Braga, M.R.
3. Álvarez, R.
4. del Campo, E.M.
5. Barreno, E.