title: Protection by CO(2) against Sodium Deficiency in a Mutant of Nostoc muscorum.
abstract: The effects of Na-deficient culture were studied on a mutant of Nostoc muscorum unable to fix N(2). Na deficiency made the cells sensitive to photooxidation, thus at a light intensity of lO W m(-2) and a low concentration of CO(2) (0.03 %), Na deficiency caused chlorosis and cell lysis. At a lower light intensity, cell damages did not take place. Higher levels of CO(2) prevented photooxidation, so that only a partial inhibition of photosynthetic oxygen evolution was found under these conditions.
authors.affiliation: Departamento de Biología General, Facultad de Ciencias Universidad Autonoma de Madrid. Canto Blanco, Madrid 34.
authors.forename: E
authors.initials: E
authors.lastname: Fernández Valiente
authors.forename: I
authors.initials: I
authors.lastname: Zamoro
authors.forename: E
authors.initials: E
authors.lastname: Sanchez Maeso
authors.forename: I
authors.initials: I
authors.lastname: Bonilla