title: Encapsulation as a response of Azospirillum brasilense sp7 to zinc stress.
abstract: Azospirillum brasilense sp7 was exposed to 2MM Zn(2+) in minimal medium upon which the cells turned black and non-motile within 24 h. A streptomycin-resistant variant did not exhibit this phenomenon and is sensitized to zinc. A prelude to encystation was the elution of a melanin-like pigment into the medium.
authors.affiliation: , .
authors.forename: P M
authors.initials: PM
authors.lastname: Gowri
authors.forename: S
authors.initials: S
authors.lastname: Srivastava