Stable extracellular enzyme activities are associated with soil colloids and persist even in harsh environments that would limit intracellular microbiological activity. Thus, only strictly intracellular enzyme activities can truly reflect microbial activity because the contribution of free extracellular enzyme released by active microbial cells is negligible; indeed, these enzymes are shortlived because they are degraded by proteases unless they are adsorbed by clays.
yes. acid and alkaline phosphatases
"Phosphatase enzyme is used to describe a broad group of enzymes that hydrolyse organic phosphorus compounds to inorganic polyphosphates which occur in soils, which is essential for P cycling for soils deficient in phosphorus "
https://www.scielo.br/pdf/bjm/v35n4/v35n4a06.pdf
https://faseb.onlinelibrary.wiley.com/doi/abs/10.1096/fasebj.2018.32.1_supplement.533.74
Внеклеточная ферментная активность сохраняется только при благоприятных условиях среды, при которой микроорганизмы непрерывно выделяют их в окружающую среду для получения питательных элементов для своего роста и развития. При наступлении неблагоприятных условий, микроорганизмы теряют активность и перестают выделять ферменты.
- Badges
- Science topic
- Similar topics
- Biological Science
- Microbiology