Cellulase activity of leaf litter and stream-dwelling, shredder macroinvertebrates
The magnitude and temporal variability of exocellulase ( beta -1,4-exoglucanase) activity in leaf litter and guts of shredding macroinvertebrates was determined over one year in four streams in Virginia, USA. The streams flowed in three physiographic provinces and hence varied as to geomorphology, h...
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| Veröffentlicht in: | Hydrobiologia 1991-08, Vol.220 (1), p.29-35 |
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| creator | WALTERS, K. H SMOCK, L. A |
| description | The magnitude and temporal variability of exocellulase ( beta -1,4-exoglucanase) activity in leaf litter and guts of shredding macroinvertebrates was determined over one year in four streams in Virginia, USA. The streams flowed in three physiographic provinces and hence varied as to geomorphology, hydrology, water chemistry and riparian landscape. No significant difference in exocellulase activity occurred between streams over the year. Considerable temporal variation in activity did occur in all streams, with peaks in autumn-early winter and again in spring, corresponding to the primary periods of input of fresh allochthonous organic matter. Litter bag studies showed that peak exocellulase activity occurred after about one month of processing. Exocellulase activity in the guts of shredders was generally correlated with activity in their detrital food, suggesting that gut enzyme activity was acquired. |
| doi_str_mv | 10.1007/BF00017489 |
| format | Article |
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A</creatorcontrib><title>Cellulase activity of leaf litter and stream-dwelling, shredder macroinvertebrates</title><title>Hydrobiologia</title><description>The magnitude and temporal variability of exocellulase ( beta -1,4-exoglucanase) activity in leaf litter and guts of shredding macroinvertebrates was determined over one year in four streams in Virginia, USA. The streams flowed in three physiographic provinces and hence varied as to geomorphology, hydrology, water chemistry and riparian landscape. No significant difference in exocellulase activity occurred between streams over the year. Considerable temporal variation in activity did occur in all streams, with peaks in autumn-early winter and again in spring, corresponding to the primary periods of input of fresh allochthonous organic matter. Litter bag studies showed that peak exocellulase activity occurred after about one month of processing. Exocellulase activity in the guts of shredders was generally correlated with activity in their detrital food, suggesting that gut enzyme activity was acquired.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Invertebrata</topic><topic>Invertebrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WALTERS, K. H</creatorcontrib><creatorcontrib>SMOCK, L. A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Hydrobiologia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WALTERS, K. H</au><au>SMOCK, L. 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| ispartof | Hydrobiologia, 1991-08, Vol.220 (1), p.29-35 |
| issn | 0018-8158 1573-5117 |
| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Freshwater Fundamental and applied biological sciences. Psychology Invertebrata Invertebrates |
| title | Cellulase activity of leaf litter and stream-dwelling, shredder macroinvertebrates |
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