Extracellular polysaccharidases synthesized by the epiphytic lichen Evernia prunastri (L.) Ach

E Yagüe; M I Orus; M P Estevez

doi:10.1007/BF00402856

Extracellular polysaccharidases synthesized by the epiphytic lichen Evernia prunastri (L.) Ach

Planta. 1984 Mar;160(3):212-6. doi: 10.1007/BF00402856.

Authors

E Yagüe¹, M I Orus, M P Estevez

Affiliation

¹ Cátedra de Fisiologia Vegetal, Facultad de Biologia, Universidad Complutense, Madrid-3, Spain.

PMID: 24258502
DOI: 10.1007/BF00402856

Abstract

Evernia prunastri Ach., an epiphytic lichen growing on Quercus rotundifolia Lam., produces a β-1,4-glucanase (EC 3.2.1.4) and a polygalacturonase (EC 3.2.1.15). The activity of these polysaccharidases increases as a response to incubation of the lichen with carboxymethylcellulose or sodium polygalacturonate, respectively. This increase in activity is thought to be the result of enzyme induction because it is inhibited by both cycloheximide and 8-azaguanine. Both polysaccharide-degrading enzymes are partially secreted into the incubation media.