Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo

© 2019, Chiang Mai University. All rights reserved. White root disease caused by Rigidoporus microporus is abundant in Hevea brasiliensis plantations in Thailand. Disease control by systemic fungicides is expensive, pollutes the environment and causes health hazards. Plant growth-promoting rhizobact...

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Main Authors: Mathurot Chaiharn, Nikhom Sujada, Wasu Pathom-Aree, Saisamorn Lumyong
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/67634
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spelling th-cmuir.6653943832-676342020-04-02T15:19:36Z Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo Mathurot Chaiharn Nikhom Sujada Wasu Pathom-Aree Saisamorn Lumyong Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy © 2019, Chiang Mai University. All rights reserved. White root disease caused by Rigidoporus microporus is abundant in Hevea brasiliensis plantations in Thailand. Disease control by systemic fungicides is expensive, pollutes the environment and causes health hazards. Plant growth-promoting rhizobacteria (PGPRs) obtained from rubber growing areas were screened for antagonistic activity against R. microporus. In the present study, 120 strains of Actinomycetes and 98 strains of fluorescent pseudomonad were screened for antagonistic traits as siderophore, β-1,3-glucanase, chitinase, cellulase, catalase and antifungal activity, in vitro. On the basis of dual culture assays, Lac 19, Lac 17 and LBR 14 strains were selected based on their bioactive compound-producing activities which included catalase, chitinase and cellulase. According to cell wall composition analysis and 16S rRNA homology, these strains were identified as Streptomyces seoulensis Lac 19, Streptomyces malaysiensis Lac 17, and Streptomyces ahygroscopicus LBR 14, respectively. Application of biocontrol agents, S. malaysiensis Lac 17 and S. ahygroscopicus LBR 14, in nursery stage of H. brasiliensis showed greater suppression of the disease in the same level as hexaconazole. The application of selected Streptomyces would be an alternative for the control of R. microporus in the long-term rubber plantation. 2020-04-02T14:58:22Z 2020-04-02T14:58:22Z 2019-01-01 Journal 01252526 2-s2.0-85073760828 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073760828&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/67634
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
spellingShingle Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
Mathurot Chaiharn
Nikhom Sujada
Wasu Pathom-Aree
Saisamorn Lumyong
Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
description © 2019, Chiang Mai University. All rights reserved. White root disease caused by Rigidoporus microporus is abundant in Hevea brasiliensis plantations in Thailand. Disease control by systemic fungicides is expensive, pollutes the environment and causes health hazards. Plant growth-promoting rhizobacteria (PGPRs) obtained from rubber growing areas were screened for antagonistic activity against R. microporus. In the present study, 120 strains of Actinomycetes and 98 strains of fluorescent pseudomonad were screened for antagonistic traits as siderophore, β-1,3-glucanase, chitinase, cellulase, catalase and antifungal activity, in vitro. On the basis of dual culture assays, Lac 19, Lac 17 and LBR 14 strains were selected based on their bioactive compound-producing activities which included catalase, chitinase and cellulase. According to cell wall composition analysis and 16S rRNA homology, these strains were identified as Streptomyces seoulensis Lac 19, Streptomyces malaysiensis Lac 17, and Streptomyces ahygroscopicus LBR 14, respectively. Application of biocontrol agents, S. malaysiensis Lac 17 and S. ahygroscopicus LBR 14, in nursery stage of H. brasiliensis showed greater suppression of the disease in the same level as hexaconazole. The application of selected Streptomyces would be an alternative for the control of R. microporus in the long-term rubber plantation.
format Journal
author Mathurot Chaiharn
Nikhom Sujada
Wasu Pathom-Aree
Saisamorn Lumyong
author_facet Mathurot Chaiharn
Nikhom Sujada
Wasu Pathom-Aree
Saisamorn Lumyong
author_sort Mathurot Chaiharn
title Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
title_short Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
title_full Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
title_fullStr Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
title_full_unstemmed Biological control of rigidoporus microporus the cause of white root disease in rubber using PGPRs in vivo
title_sort biological control of rigidoporus microporus the cause of white root disease in rubber using pgprs in vivo
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073760828&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/67634
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