| |
DOI: | 10.2134/agronj2013.0447 |
Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/106/3/781 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/106/3/781 Last checked: 11/04/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Berndt, William L.;
Gaussoin, Roch E.;
Vargas, Joseph M. Jr. |
Author Affiliation: | Berndt: PGA Golf Management, Florida Gulf Coast Univ., Fort Myers, FL; Gaussoin: Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE; Vargas: Dep. Plant, Soil and Microbial Sciences, Michigan State Univ., East Lansing, MI |
Title: | Cellulase accelerates short-term decay of thatch-mat |
Section: | Agronomy soils & environmetal quality Other records with the "Agronomy soils & environmetal quality" Section
|
Source: | Agronomy Journal. Vol. 106, No. 3, May/June 2014, p. 781-788. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy |
# of Pages: | 8 |
Related Web URL: | https://dl.sciencesocieties.org/publications/aj/abstracts/106/3/781 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website Notes: Abstract only |
Keywords: | TIC Keywords: Application rates; Cellulase; Hybrid bermudagrasses; Thatch; Trichoderma reesei
|
Abstract/Contents: | "Thatch-mat (TM) is comprised of various cell wall polymers, including cellulose. As cellulase (CEL) hydrolyses cellulose it may accelerate TM decay. Research sought to determine if CEL from Trichoderma reesei accelerates decay of TM from hybrid bermudagrass [Cynodon dactylon (L.) Pers. var. dactylon ^D#^DOE C.transvaalensis Burtt-Davy]. Release of CO2-C from TM in response to two levels of applied CEL and a control was measured daily over 15 d, plotting percent TM-C remaining vs. time. Fitting a double exponential model of the form y = a0e-bx + c0e-dx to resulting curves yielded rate constants for fast-pool C and slow-pool C. After 3 d, total CO2-C released from untreated TM was 2.95 g kg-1, leaving 96.8% C remaining. Treating with 10 and 20 g CEL kg-1 TM increased CO2-C release to 4.30 and 5.84 g kg-1, leaving 95.6 and 93.6% C remaining. Differences in percent C remaining at 15 d were insignificant, averaging 92%. It appeared untreated TM had lost as much C as treated. Treating with 10 g CEL kg-1 decreased turnover time of fast-pool from 3.2 to 1.3 d, and slow-pool from 451 to 309 d. Increasing the rate to 20 g CEL kg-1 did not further reduce turnover time of fast-pool, but increased slow-pool turnover time to 1466 d. Results suggested constituents subject to CEL hydrolysis, which ≅7%, mineralized faster with CEL treatment, but were quickly exhausted slowing subsequent decay. Cellulase accelerated short-term decay, but did not increase total TM mineralized over 15 d." |
Language: | English |
References: | 46 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Berndt, W. L., R. E. Gaussoin, and J. M. Jr. Vargas. 2014. Cellulase accelerates short-term decay of thatch-mat. Agron. J. 106(3):p. 781-788. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=241572 |
| If there are problems with this record, send us feedback about record 241572. |
| Choices for finding the above item: |
| DOI: 10.2134/agronj2013.0447 |
| Web URL(s): https://dl.sciencesocieties.org/publications/aj/articles/106/3/781 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/106/3/781 Last checked: 11/04/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2212646a |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |