Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/39384 |
Resumo: | Due to the toxicity and inefficiency of chemical fungicides to control infestation of Macrophomina phaseolina (Tassi) Goid which causes charcoal rot in plants, a biotechnological approach using β-glucosidase (EC.3.2.1) as the alternative bioactive ingredient in fungicide is hereby, proposed. The extracellular enzyme was isolated from a highly efficient fungal antagonist, Trichoderma harzianum T12. The highly similar molecular masses obtained using SDS-PAGE (96 kDa) and MALDI-TOF mass spectrometry (98.3 kDa) affirmed that the β-glucosidase was purified to homogeneity. Consequently, optimum catalytic parameters that rendered the highest enzyme activity were found to be: 45˚C, pH 7, inoculum size of 10 % (w/v), supplementation with metal ions Zn2+ and Mn2+ ions, and Tween 80. Addition of wheat bran and (NH4)2SO4 as carbon and nitrogen sources also improved enzyme activity. BLASTn showed the sequence of β-glucosidase T12 was highly identical to other β-glucosidases viz. T. harzianum strain IOC-3844 (99%), T. gamsii and T. virens bgl1 (86 %) as well as T. reesei strain SJVTR and T. viride strain AS 3.3711 (84 %). Kinetic assessment showed that β-glucosidase T12 catalyzes hydrolytic activity is characterized by a Km of 0.79 mM and Vmax of 8.45 mM min-1 mg-1 protein, with a corresponding kcat of 10.69 s-1. |
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Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum Avaliações das propriedades catalíticas e cinéticas da betaglucosidase isoladas de um fungo antagonísta altamente eficiente Trichoderma harzianumβ-glucosidaseTrichoderma harzianumKinetic assessmentMacrophomina phaseolinaβ-glicosidaseTrichoderma harzianumAvaliação cinéticaMacrophomina phaseolinaDue to the toxicity and inefficiency of chemical fungicides to control infestation of Macrophomina phaseolina (Tassi) Goid which causes charcoal rot in plants, a biotechnological approach using β-glucosidase (EC.3.2.1) as the alternative bioactive ingredient in fungicide is hereby, proposed. The extracellular enzyme was isolated from a highly efficient fungal antagonist, Trichoderma harzianum T12. The highly similar molecular masses obtained using SDS-PAGE (96 kDa) and MALDI-TOF mass spectrometry (98.3 kDa) affirmed that the β-glucosidase was purified to homogeneity. Consequently, optimum catalytic parameters that rendered the highest enzyme activity were found to be: 45ËšC, pH 7, inoculum size of 10 % (w/v), supplementation with metal ions Zn2+ and Mn2+ ions, and Tween 80. Addition of wheat bran and (NH4)2SO4 as carbon and nitrogen sources also improved enzyme activity. BLASTn showed the sequence of β-glucosidase T12 was highly identical to other β-glucosidases viz. T. harzianum strain IOC-3844 (99%), T. gamsii and T. virens bgl1 (86 %) as well as T. reesei strain SJVTR and T. viride strain AS 3.3711 (84 %). Kinetic assessment showed that β-glucosidase T12 catalyzes hydrolytic activity is characterized by a Km of 0.79 mM and Vmax of 8.45 mM min-1 mg-1 protein, with a corresponding kcat of 10.69 s-1. Devido à toxicidade e ineficiência dos fungicidas químicos para controlar a infestação de Macrophomina phaseolina (Tassi) Goid que causa o apodrecimento das plantas, uma abordagem biotecnológica usando βglicosidase (EC.3.2.1) como o ingrediente bioativo alternativo do fungicida é por este meio, proposto. A enzima extracelular foi isolada de um antagonista fúngico altamente eficiente, o Trichoderma harzianum T12. As massas moleculares altamente similares obtidas usando SDS-PAGE (96 kDa) e espectrometria de massa MALDI-TOF (98,3 kDa) afirmaram que a β-glicosidase foi purificada até a homogeneidade. Consequentemente, os parâmetros catalíticos ótimos que apresentaram a maior atividade enzimática foram: 45˚C, pH 7, tamanho do inóculo de 10% (p / v), suplementação com íons de metais Zn2+ e Mn2+, e Tween 80. Adição de farelo de trigo e (NH4) 2SO4 como fontes de carbono e nitrogênio também melhoraram a atividade enzimática. O BLASTn mostrou que a sequência da β-glicosidase T12 era altamente idêntica a outras β-glicosidase viz. A estirpe T. harzianum IOC-3844 (99%), T. gamsii e T. virens bgl1 (86%) assim comoa estirpe T. reesei SJVTR e a estirpe T. viride AS 3.3711 (84%). A avaliação cinética mostrou que β-glicosidase T12 catalisa a actividade hidrolítica caracterizada por um Km de 0,79 mM e Vmax de 8,45 mM min-1 mg-1 de proteína, com um correspondente kcat de 10,69 s-1.EDUFU2018-08-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/3938410.14393/BJ-v34n1a2018-39384Bioscience Journal ; Vol. 34 No. 4 (2018): July/Aug.; 830-847Bioscience Journal ; v. 34 n. 4 (2018): July/Aug.; 830-8471981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/39384/22642Copyright (c) 2018 Elham Khalili, Fahrul Huyop, Muhammad Arshad Javed, Naji Arafat Mahat, Kalaivani Batumalaie, Roswanira Abdul Wahabhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessKhalili, ElhamHuyop, FahrulJaved, Muhammad ArshadMahat, Naji ArafatBatumalaie, KalaivaniWahab, Roswanira Abdul2022-03-22T22:36:24Zoai:ojs.www.seer.ufu.br:article/39384Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-03-22T22:36:24Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum Avaliações das propriedades catalíticas e cinéticas da betaglucosidase isoladas de um fungo antagonísta altamente eficiente Trichoderma harzianum |
title |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
spellingShingle |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum Khalili, Elham β-glucosidase Trichoderma harzianum Kinetic assessment Macrophomina phaseolina β-glicosidase Trichoderma harzianum Avaliação cinética Macrophomina phaseolina |
title_short |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
title_full |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
title_fullStr |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
title_full_unstemmed |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
title_sort |
Assessments on the catalytic and kinetic properties of beta-glucosidase isolated from a highly efficient antagonistic fungus Trichoderma harzianum |
author |
Khalili, Elham |
author_facet |
Khalili, Elham Huyop, Fahrul Javed, Muhammad Arshad Mahat, Naji Arafat Batumalaie, Kalaivani Wahab, Roswanira Abdul |
author_role |
author |
author2 |
Huyop, Fahrul Javed, Muhammad Arshad Mahat, Naji Arafat Batumalaie, Kalaivani Wahab, Roswanira Abdul |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Khalili, Elham Huyop, Fahrul Javed, Muhammad Arshad Mahat, Naji Arafat Batumalaie, Kalaivani Wahab, Roswanira Abdul |
dc.subject.por.fl_str_mv |
β-glucosidase Trichoderma harzianum Kinetic assessment Macrophomina phaseolina β-glicosidase Trichoderma harzianum Avaliação cinética Macrophomina phaseolina |
topic |
β-glucosidase Trichoderma harzianum Kinetic assessment Macrophomina phaseolina β-glicosidase Trichoderma harzianum Avaliação cinética Macrophomina phaseolina |
description |
Due to the toxicity and inefficiency of chemical fungicides to control infestation of Macrophomina phaseolina (Tassi) Goid which causes charcoal rot in plants, a biotechnological approach using β-glucosidase (EC.3.2.1) as the alternative bioactive ingredient in fungicide is hereby, proposed. The extracellular enzyme was isolated from a highly efficient fungal antagonist, Trichoderma harzianum T12. The highly similar molecular masses obtained using SDS-PAGE (96 kDa) and MALDI-TOF mass spectrometry (98.3 kDa) affirmed that the β-glucosidase was purified to homogeneity. Consequently, optimum catalytic parameters that rendered the highest enzyme activity were found to be: 45˚C, pH 7, inoculum size of 10 % (w/v), supplementation with metal ions Zn2+ and Mn2+ ions, and Tween 80. Addition of wheat bran and (NH4)2SO4 as carbon and nitrogen sources also improved enzyme activity. BLASTn showed the sequence of β-glucosidase T12 was highly identical to other β-glucosidases viz. T. harzianum strain IOC-3844 (99%), T. gamsii and T. virens bgl1 (86 %) as well as T. reesei strain SJVTR and T. viride strain AS 3.3711 (84 %). Kinetic assessment showed that β-glucosidase T12 catalyzes hydrolytic activity is characterized by a Km of 0.79 mM and Vmax of 8.45 mM min-1 mg-1 protein, with a corresponding kcat of 10.69 s-1. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-08-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/39384 10.14393/BJ-v34n1a2018-39384 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/39384 |
identifier_str_mv |
10.14393/BJ-v34n1a2018-39384 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/39384/22642 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 34 No. 4 (2018): July/Aug.; 830-847 Bioscience Journal ; v. 34 n. 4 (2018): July/Aug.; 830-847 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069078349742080 |