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Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.)
Hexanal, a C-6 aldehyde has been implicated to have antimicrobial properties. Hence, this study was conducted to determine the antifungal activities of hexanal vapor against major postharvest pathogens of banana viz., Colletotrichum gloeosporioides and Lasiodiplodia theobromae. The pathogens were cu...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Society of Plant Pathology
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143517/ https://www.ncbi.nlm.nih.gov/pubmed/32296293 http://dx.doi.org/10.5423/PPJ.OA.03.2019.0072 |
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author | Dhakshinamoorthy, Durgadevi Sundaresan, Srivignesh Iyadurai, Arumukapravin Subramanian, Kizhaeral Sevathapandian Janavi, Gnanaguru Janaki Paliyath, Gopinathan Subramanian, Jayasankar |
author_facet | Dhakshinamoorthy, Durgadevi Sundaresan, Srivignesh Iyadurai, Arumukapravin Subramanian, Kizhaeral Sevathapandian Janavi, Gnanaguru Janaki Paliyath, Gopinathan Subramanian, Jayasankar |
author_sort | Dhakshinamoorthy, Durgadevi |
collection | PubMed |
description | Hexanal, a C-6 aldehyde has been implicated to have antimicrobial properties. Hence, this study was conducted to determine the antifungal activities of hexanal vapor against major postharvest pathogens of banana viz., Colletotrichum gloeosporioides and Lasiodiplodia theobromae. The pathogens were cultured in vitro and exposed to hexanal vapor at 600, 800, 1,000 and 1,200 ppm. Mycelial growth of both fungal pathogens were inhibited completely at 800 ppm and the incidence of anthracnose and stem-end rot diseases reduced by 75.2% and 80.2%, respectively. The activities of peroxidase, polyphenol oxidase, phenylalanine ammonia-lyase and glucanase had transiently increased in hexanal vapor treated banana by 5 to 7 days and declined thereafter. Postharvest treatment of banana with hexanal vapor resulted in phospholipase D inhibition and also resulted in cell wall thickening of the treated fruit, which impeded the penetration of the pathogenic spores. This was further confirmed by scanning electron micrographs. The defense-related protein intermediaries had increased in hexanal vapor treated banana fruit, which suggests induced resistance against C. gloeosporioides and L. theobromae, via., the phenylpropanoid pathway which plays a significant role in hindering the pathogen quiescence. Delayed ripening due to inhibition of phospholipase D enzyme, inhibition of mycelial growth and induced systemic resistance by defense enzymes collectively contributed to the postharvest disease reduction and extended shelf life of fruit. |
format | Online Article Text |
id | pubmed-7143517 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Korean Society of Plant Pathology |
record_format | MEDLINE/PubMed |
spelling | pubmed-71435172020-04-15 Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) Dhakshinamoorthy, Durgadevi Sundaresan, Srivignesh Iyadurai, Arumukapravin Subramanian, Kizhaeral Sevathapandian Janavi, Gnanaguru Janaki Paliyath, Gopinathan Subramanian, Jayasankar Plant Pathol J Research Article Hexanal, a C-6 aldehyde has been implicated to have antimicrobial properties. Hence, this study was conducted to determine the antifungal activities of hexanal vapor against major postharvest pathogens of banana viz., Colletotrichum gloeosporioides and Lasiodiplodia theobromae. The pathogens were cultured in vitro and exposed to hexanal vapor at 600, 800, 1,000 and 1,200 ppm. Mycelial growth of both fungal pathogens were inhibited completely at 800 ppm and the incidence of anthracnose and stem-end rot diseases reduced by 75.2% and 80.2%, respectively. The activities of peroxidase, polyphenol oxidase, phenylalanine ammonia-lyase and glucanase had transiently increased in hexanal vapor treated banana by 5 to 7 days and declined thereafter. Postharvest treatment of banana with hexanal vapor resulted in phospholipase D inhibition and also resulted in cell wall thickening of the treated fruit, which impeded the penetration of the pathogenic spores. This was further confirmed by scanning electron micrographs. The defense-related protein intermediaries had increased in hexanal vapor treated banana fruit, which suggests induced resistance against C. gloeosporioides and L. theobromae, via., the phenylpropanoid pathway which plays a significant role in hindering the pathogen quiescence. Delayed ripening due to inhibition of phospholipase D enzyme, inhibition of mycelial growth and induced systemic resistance by defense enzymes collectively contributed to the postharvest disease reduction and extended shelf life of fruit. Korean Society of Plant Pathology 2020-04-01 2020-04-01 /pmc/articles/PMC7143517/ /pubmed/32296293 http://dx.doi.org/10.5423/PPJ.OA.03.2019.0072 Text en © The Korean Society of Plant Pathology This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Dhakshinamoorthy, Durgadevi Sundaresan, Srivignesh Iyadurai, Arumukapravin Subramanian, Kizhaeral Sevathapandian Janavi, Gnanaguru Janaki Paliyath, Gopinathan Subramanian, Jayasankar Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title | Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title_full | Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title_fullStr | Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title_full_unstemmed | Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title_short | Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.) |
title_sort | hexanal vapor induced resistance against major postharvest pathogens of banana (musa acuminata l.) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143517/ https://www.ncbi.nlm.nih.gov/pubmed/32296293 http://dx.doi.org/10.5423/PPJ.OA.03.2019.0072 |
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