Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab

Anthracnose is the fungal disease that affects many plants, including vegetables, fruits, and trees. It causes dark, sunken lesions on leaves, stems, flowers, and fruits. This study was conducted to determine the host specificity and pathogenicity of fungal pathogen isolated from black pepper anthra...

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Main Author:	Abdul Wahab, Azrul Ezwan Shah
Format:	Student Project
Published:	Faculty of Plantation and Agrotechnology 2019
Subjects:	Agriculture and the environment SB Plant culture Pests and diseases
Online Access:	http://ir.uitm.edu.my/id/eprint/23869/

id	uitm-23869
recordtype	eprints
spelling	uitm-238692019-04-22T02:16:09Z http://ir.uitm.edu.my/id/eprint/23869/ Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab Abdul Wahab, Azrul Ezwan Shah Agriculture and the environment SB Plant culture Pests and diseases Anthracnose is the fungal disease that affects many plants, including vegetables, fruits, and trees. It causes dark, sunken lesions on leaves, stems, flowers, and fruits. This study was conducted to determine the host specificity and pathogenicity of fungal pathogen isolated from black pepper anthracnose. Pathogenicity test was conducted on the leaves of black pepper, red chilli and bird’s eye chilli using mycelia plug technique. The study had identified Colletotrichum spp as the fungal pathogen of anthracnose disease. The black pepper, red chilli and bird’s eye chilli leaves became infected with Colletotrichum spp and developed symptoms. The symptoms start to appear on the wounded part of inoculated leaves on the fourth day after inoculation. On the 9th day after inoculation, dark brown lesions of anthracnose have already spread. Pathogenicity test using mycelia plug method showed that all representative isolates of Colletotrichum spp. were pathogenic on wounded treatments. Black pepper leaves produced highest disease severity index, 92.59% followed by bird’s eye chilli, 77.77% and red chilli, 70.37%. Hence, susceptibility presence with degree of virulence that ranges from low to very high. Unwounded and control treatment did not show any symptoms of anthracnose even after 9 days of inoculation. Morphological characteristics of the isolates re-isolated from the lesions were similar with morphological characteristics of Colletotrichum spp. isolates obtained from pure culture and thus Koch’s postulates were fulfilled. Faculty of Plantation and Agrotechnology 2019 Student Project NonPeerReviewed Abdul Wahab, Azrul Ezwan Shah (2019) Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
topic	Agriculture and the environment SB Plant culture Pests and diseases
spellingShingle	Agriculture and the environment SB Plant culture Pests and diseases Abdul Wahab, Azrul Ezwan Shah Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
description	Anthracnose is the fungal disease that affects many plants, including vegetables, fruits, and trees. It causes dark, sunken lesions on leaves, stems, flowers, and fruits. This study was conducted to determine the host specificity and pathogenicity of fungal pathogen isolated from black pepper anthracnose. Pathogenicity test was conducted on the leaves of black pepper, red chilli and bird’s eye chilli using mycelia plug technique. The study had identified Colletotrichum spp as the fungal pathogen of anthracnose disease. The black pepper, red chilli and bird’s eye chilli leaves became infected with Colletotrichum spp and developed symptoms. The symptoms start to appear on the wounded part of inoculated leaves on the fourth day after inoculation. On the 9th day after inoculation, dark brown lesions of anthracnose have already spread. Pathogenicity test using mycelia plug method showed that all representative isolates of Colletotrichum spp. were pathogenic on wounded treatments. Black pepper leaves produced highest disease severity index, 92.59% followed by bird’s eye chilli, 77.77% and red chilli, 70.37%. Hence, susceptibility presence with degree of virulence that ranges from low to very high. Unwounded and control treatment did not show any symptoms of anthracnose even after 9 days of inoculation. Morphological characteristics of the isolates re-isolated from the lesions were similar with morphological characteristics of Colletotrichum spp. isolates obtained from pure culture and thus Koch’s postulates were fulfilled.
format	Student Project
author	Abdul Wahab, Azrul Ezwan Shah
author_facet	Abdul Wahab, Azrul Ezwan Shah
author_sort	Abdul Wahab, Azrul Ezwan Shah
title	Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
title_short	Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
title_full	Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
title_fullStr	Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
title_full_unstemmed	Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab
title_sort	host specificity and pathogenicity test of colletotrichum spp. isolated from black pepper (piper nigrum l.) anthracnose / azrul ezwan shah abdul wahab
publisher	Faculty of Plantation and Agrotechnology
publishDate	2019
url	http://ir.uitm.edu.my/id/eprint/23869/
first_indexed	2023-09-18T23:11:32Z
last_indexed	2023-09-18T23:11:32Z
_version_	1777418834707218432

Host specificity and pathogenicity test of Colletotrichum Spp. isolated from black pepper (Piper nigrum l.) anthracnose / Azrul Ezwan Shah Abdul Wahab

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