Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides

Current approaches to control papaya disease rely on the use of chemicals fungicide which is detrimental to human health and environment. Thus, there is a need to find and develop biological means of controlling pathogens of papaya. One of the most serious threats to papaya crop is anthracnose...

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Main Author:	Zainal, Tengku Siti Nor Zaimas Tengku
Format:	Thesis
Language:	English
Published:	2012
Subjects:	QH1 Natural history (General - Including nature conservation geographical distribution)
Online Access:	http://eprints.usm.my/44003/1/Tengku%20Siti%20Nor%20Zaimas%20Binti%20Tengku%20Zainal24.pdf
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id	my-usm-ep.44003
record_format	uketd_dc
spelling	my-usm-ep.440032019-04-12T05:26:19Z Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides 2012-12 Zainal, Tengku Siti Nor Zaimas Tengku QH1 Natural history (General - Including nature conservation, geographical distribution) Current approaches to control papaya disease rely on the use of chemicals fungicide which is detrimental to human health and environment. Thus, there is a need to find and develop biological means of controlling pathogens of papaya. One of the most serious threats to papaya crop is anthracnose disease caused by Colletotrichum gloeosporioides. This study was conducted to investigate the potential of endophytic bacteria from Carica papaya as biological control agents against anthracnose by in vitro means. A total of 47 and 57 bacterial endophytes were isolated from fruits and leaves of papaya, respectively. The endophytic bacteria were identified based on their morphological and physiological characteristics, BIOLOG Identification System, and 16S rDNA sequence analysis. Based on the results, both strains F21 and L63 were identified as Bacillus species. These Bacillus spp. successfully showed inhibitory effects against C. gloeosporioides isolates 1 and 2. Based on dual culture test, Bacillus sp. L63 has the potential to be biocontrol agent against C. gloeosporiroides isolates 1 and 2 with percentage of inhibition 47.05% and 58.06%, respectively. Severe morphological changes were observed on the fungal mycelia when treated with Bacillus sp. L63. In conclusion, Bacillus sp. L63 has the potential to serve as biological control agents against C. gloeosporioides. 2012-12 Thesis http://eprints.usm.my/44003/ http://eprints.usm.my/44003/1/Tengku%20Siti%20Nor%20Zaimas%20Binti%20Tengku%20Zainal24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH1 Natural history (General - Including nature conservation geographical distribution)
spellingShingle	QH1 Natural history (General - Including nature conservation geographical distribution) Zainal, Tengku Siti Nor Zaimas Tengku Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
description	Current approaches to control papaya disease rely on the use of chemicals fungicide which is detrimental to human health and environment. Thus, there is a need to find and develop biological means of controlling pathogens of papaya. One of the most serious threats to papaya crop is anthracnose disease caused by Colletotrichum gloeosporioides. This study was conducted to investigate the potential of endophytic bacteria from Carica papaya as biological control agents against anthracnose by in vitro means. A total of 47 and 57 bacterial endophytes were isolated from fruits and leaves of papaya, respectively. The endophytic bacteria were identified based on their morphological and physiological characteristics, BIOLOG Identification System, and 16S rDNA sequence analysis. Based on the results, both strains F21 and L63 were identified as Bacillus species. These Bacillus spp. successfully showed inhibitory effects against C. gloeosporioides isolates 1 and 2. Based on dual culture test, Bacillus sp. L63 has the potential to be biocontrol agent against C. gloeosporiroides isolates 1 and 2 with percentage of inhibition 47.05% and 58.06%, respectively. Severe morphological changes were observed on the fungal mycelia when treated with Bacillus sp. L63. In conclusion, Bacillus sp. L63 has the potential to serve as biological control agents against C. gloeosporioides.
format	Thesis
qualification_level	Master's degree
author	Zainal, Tengku Siti Nor Zaimas Tengku
author_facet	Zainal, Tengku Siti Nor Zaimas Tengku
author_sort	Zainal, Tengku Siti Nor Zaimas Tengku
title	Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
title_short	Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
title_full	Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
title_fullStr	Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
title_full_unstemmed	Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides
title_sort	potential of endophytic bacteria from papaya (carica papaya) to control colletotrichum gloeosporioides
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2012
url	http://eprints.usm.my/44003/1/Tengku%20Siti%20Nor%20Zaimas%20Binti%20Tengku%20Zainal24.pdf
_version_	1747821317213650944

Potential Of Endophytic Bacteria From Papaya (Carica Papaya) To Control Colletotrichum Gloeosporioides

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