title: Enhancement of poly-beta-hydroxybutyrate accumulation in Nostoc muscorum under mixotrophy, chemoheterotrophy and limitations of gas-exchange.
abstract: Nostoc muscorum, a heterocystous cyanobacterium, produced poly-beta-hydroxybutyrate ( PHB) up to 8% (w/w) dry cells when grown photoautotrophically but 35% when grown mixotrophically with 0.4% (w/v) glucose and acetate after 21 d. Gas-exchange limitations under mixotrophy and chemoheterotrophy with 0.4% (w/v) acetate enhanced the accumulation up to 40-43% (w/w) dry cells, the value almost 5-fold higher with respect to photoautotrophic condition.
authors.affiliation: Agricultural and Food Engineering, Department, Indian Institute of Technology, 721302, Kharagpur, India.
authors.forename: Laxuman
authors.initials: L
authors.lastname: Sharma
authors.forename: Nirupama
authors.initials: N
authors.lastname: Mallick
mesh_terms: D005740:Gases; D006885:Hydroxybutyrates / Q000378:metabolism*; D046937:Nostoc / Q000378:metabolism*; D011091:Polyesters / Q000378:metabolism*; D000094122:Polyhydroxybutyrates
chemical_list: D005740:Gases; D006885:Hydroxybutyrates; D011091:Polyesters; C003182:poly-beta-hydroxybutyrate; D000094122:Polyhydroxybutyrates