Claim · model-written summary
Tetrachaetum elegans secreted a presumed exo-pectin lyase and a pectin esterase.
- Taxon
- Tetrachaetum elegans
Tetrachaetum eleganse0 - Outcome
- secreted a presumed exo-pectin lyase and a pectin esterasee0
Verbatim
e0“Tetrachaetum elegans secreted a presumed exo-pectin lyase and a pectin esterase”
Title
Pectinases in Leaf Degradation by Aquatic Hyphomycetes: the Enzymes and Leaf Maceration
A.-C. Chamier; P. A. Dixon Microbiology 1982. doi:10.1099/00221287-128-10-2469
Other claims from this paper (13)
- Observation All seven tested aquatic hyphomycetes produced polygalacturonases and pectin lyases.
- Observation Aquatic hyphomycete polygalacturonases were constitutive.
- Intervention effect Pectic substrates at pH 6.5 and above induced pectin lyases in aquatic hyphomycetes.
- Observation Some aquatic hyphomycetes grew on pectic substrates at pH 5 and pH 7.
- Observation Other aquatic hyphomycetes grew on pectic substrates only at pH 7.
- Intervention effect Tricladium splendens grew equally well on polypectate and glucose.
- Observation Tricladium splendens produced three endo-polygalacturonase isoenzymes.
- Observation Articulospora tetracladia produced three endo-polygalacturonase isoenzymes.
- Observation Mycocentrospora angulata secreted an endo-pectin lyase and a pectin esterase.
- Observation The four fungal species completely macerated alder leaf strips within 9 to 12 days at stream pH 7.
- Mechanism Pectin lyases and pectin esterases were the predominant enzymes used in alder leaf maceration.
- Mechanism Ca2+ stimulates these enzymes and may explain rapid plant decay in calcium-rich streams at pH 6.5 and above.
- Association Fungal occurrence on experimental stream leaf packs did not appear related to pectolytic capability.