Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)

Several bacteria are found to be potential as antagonists due to their capacity in producing extracellular enzymes amylase, protease, gelatinase, cellulose and chitinase. In this research, we collected bacteria from both healthy and anthracnose-infecting chili plants (root, stem and leaf). The resul...

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Main Authors: Tarigan Rasiska, Lisnawita Lisnawita, Tantawi A.R., Hermanto Catur
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:BIO Web of Conferences
Online Access:https://www.bio-conferences.org/articles/bioconf/pdf/2025/09/bioconf_icsard2024_03021.pdf
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author Tarigan Rasiska
Lisnawita Lisnawita
Tantawi A.R.
Hermanto Catur
author_facet Tarigan Rasiska
Lisnawita Lisnawita
Tantawi A.R.
Hermanto Catur
author_sort Tarigan Rasiska
collection DOAJ
description Several bacteria are found to be potential as antagonists due to their capacity in producing extracellular enzymes amylase, protease, gelatinase, cellulose and chitinase. In this research, we collected bacteria from both healthy and anthracnose-infecting chili plants (root, stem and leaf). The results revealed that 27 bacterial isolates are non-pathogenic and non-hemolytic to plants, which are 10 bacteria isolated from roots, 8 bacteria isolated from leaves, 7 bacteria isolated from stems and 2 bacteria isolated from fruits. Morphology identification showed that most of non-pathogenic bacteria are circular, irregular and punctiform, with elevation flat, raised and umbonate. White and milky bacteria are dominant, with varied opacity (transparent, translucent and opaque) and textures (slimy, mucoid, shiny and dry). Enzymatic activity test revealed 11 isolates produced protease, amylase and chitinase enzymes (isolates 11, 34, 42, 48, 111,118, 139, 188, 215, 216 and 218).
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publishDate 2025-01-01
publisher EDP Sciences
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series BIO Web of Conferences
spelling doaj-art-93382f1eb3be490ebfbe0282c6b2316a2025-08-20T02:13:41ZengEDP SciencesBIO Web of Conferences2117-44582025-01-011580302110.1051/bioconf/202515803021bioconf_icsard2024_03021Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)Tarigan Rasiska0Lisnawita Lisnawita1Tantawi A.R.2Hermanto Catur3Research Center for Horticulture, National Research and Innovation AgencyDepartment of Agrotechnology, Faculty of Agriculture, Universitas Medan AreaDepartment of Agrotechnology, Faculty of Agriculture, Universitas Medan AreaResearch Center for Horticulture, National Research and Innovation AgencySeveral bacteria are found to be potential as antagonists due to their capacity in producing extracellular enzymes amylase, protease, gelatinase, cellulose and chitinase. In this research, we collected bacteria from both healthy and anthracnose-infecting chili plants (root, stem and leaf). The results revealed that 27 bacterial isolates are non-pathogenic and non-hemolytic to plants, which are 10 bacteria isolated from roots, 8 bacteria isolated from leaves, 7 bacteria isolated from stems and 2 bacteria isolated from fruits. Morphology identification showed that most of non-pathogenic bacteria are circular, irregular and punctiform, with elevation flat, raised and umbonate. White and milky bacteria are dominant, with varied opacity (transparent, translucent and opaque) and textures (slimy, mucoid, shiny and dry). Enzymatic activity test revealed 11 isolates produced protease, amylase and chitinase enzymes (isolates 11, 34, 42, 48, 111,118, 139, 188, 215, 216 and 218).https://www.bio-conferences.org/articles/bioconf/pdf/2025/09/bioconf_icsard2024_03021.pdf
spellingShingle Tarigan Rasiska
Lisnawita Lisnawita
Tantawi A.R.
Hermanto Catur
Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
BIO Web of Conferences
title Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
title_full Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
title_fullStr Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
title_full_unstemmed Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
title_short Isolation and characterization of potential amylolytic, proteolytic, gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants (Colletotrichum spp.)
title_sort isolation and characterization of potential amylolytic proteolytic gelatinolytic and chitinolytic properties in bacterial antagonists obtained from chilli plants colletotrichum spp
url https://www.bio-conferences.org/articles/bioconf/pdf/2025/09/bioconf_icsard2024_03021.pdf
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