Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes

Bryophytes are non-vascular plants with dominant gametophyte stage that play vital ecological roles in natural ecosystems. Unfortunately, their populations are currently in decline due to habitat destruction and various anthropogenic activities. The conservation efforts for bryophytes are hampered b...

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Main Authors: Mathurin Meethangdee, Wasu Pathom-aree
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Current Research in Microbial Sciences
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666517424000671
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author Mathurin Meethangdee
Wasu Pathom-aree
author_facet Mathurin Meethangdee
Wasu Pathom-aree
author_sort Mathurin Meethangdee
collection DOAJ
description Bryophytes are non-vascular plants with dominant gametophyte stage that play vital ecological roles in natural ecosystems. Unfortunately, their populations are currently in decline due to habitat destruction and various anthropogenic activities. The conservation efforts for bryophytes are hampered by their slow growth rates. This study aims to investigate the potential of actinobacteria to promote the growth of bryophytes. In this study, three plant growth-promoting actinobacteria, Dermacoccus abyssi MT1.1T, Micromonospora chalcea CMU55-4 and Streptomyces thermocarboxydus S3 were cultured in International Streptomyces Project medium 2 (ISP2) broth to obtain culture filtrates containing bioactive compounds for enhancing the growth of two bryophyte species, Physcomotrium sphaericum (C. Ludw.) Fürnr and Sphagnum cuspidatulum C. Müll. Interestingly, the incorporation of actinobacterial culture filtrates into 1/16 Murashige and Skoog (MS) medium yielded superior growth performance of P. sphaericum (C. Ludw.) Fürnr and S. cuspidatulum C. Müll, as observed from the thallus height, fresh weight, total chlorophyll contents, and total carotenoid contents compared to control groups. In addition, the inoculation of M. chalcea CMU55-4 on S. cuspidatulum C. Müll grown in sterile peat moss demonstrated the highest values for thallus height, fresh weight, dry weight, total chlorophyll content, and total carotenoid content. All actinobacteria successfully colonized the moss seedlings without any observable negative impacts, indicating beneficial interactions between actinobacteria and bryophytes. This research sheds light on the potential of harnessing plant beneficial actinobacteria to enhance the growth of bryophytes for conservation purposes.
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spelling doaj-art-41f512d5872445c99d429c487114907d2024-12-04T05:14:10ZengElsevierCurrent Research in Microbial Sciences2666-51742024-01-017100284Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytesMathurin Meethangdee0Wasu Pathom-aree1Multidisciplinary and Interdisciplinary School, Chiang Mai University, Chiang Mai 50200, ThailandCenter of Excellence in Microbial Diversity and Sustainable Utilization, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Corresponding author.Bryophytes are non-vascular plants with dominant gametophyte stage that play vital ecological roles in natural ecosystems. Unfortunately, their populations are currently in decline due to habitat destruction and various anthropogenic activities. The conservation efforts for bryophytes are hampered by their slow growth rates. This study aims to investigate the potential of actinobacteria to promote the growth of bryophytes. In this study, three plant growth-promoting actinobacteria, Dermacoccus abyssi MT1.1T, Micromonospora chalcea CMU55-4 and Streptomyces thermocarboxydus S3 were cultured in International Streptomyces Project medium 2 (ISP2) broth to obtain culture filtrates containing bioactive compounds for enhancing the growth of two bryophyte species, Physcomotrium sphaericum (C. Ludw.) Fürnr and Sphagnum cuspidatulum C. Müll. Interestingly, the incorporation of actinobacterial culture filtrates into 1/16 Murashige and Skoog (MS) medium yielded superior growth performance of P. sphaericum (C. Ludw.) Fürnr and S. cuspidatulum C. Müll, as observed from the thallus height, fresh weight, total chlorophyll contents, and total carotenoid contents compared to control groups. In addition, the inoculation of M. chalcea CMU55-4 on S. cuspidatulum C. Müll grown in sterile peat moss demonstrated the highest values for thallus height, fresh weight, dry weight, total chlorophyll content, and total carotenoid content. All actinobacteria successfully colonized the moss seedlings without any observable negative impacts, indicating beneficial interactions between actinobacteria and bryophytes. This research sheds light on the potential of harnessing plant beneficial actinobacteria to enhance the growth of bryophytes for conservation purposes.http://www.sciencedirect.com/science/article/pii/S2666517424000671BryophytePlant growth-promoting actinomycetesDeep-sea actinobacteriaEndophytic actinobacteriaPlant-microbe interactionsColonization
spellingShingle Mathurin Meethangdee
Wasu Pathom-aree
Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
Current Research in Microbial Sciences
Bryophyte
Plant growth-promoting actinomycetes
Deep-sea actinobacteria
Endophytic actinobacteria
Plant-microbe interactions
Colonization
title Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
title_full Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
title_fullStr Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
title_full_unstemmed Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
title_short Unraveling growth-promoting potential of plant beneficial actinobacteria on tropical bryophytes
title_sort unraveling growth promoting potential of plant beneficial actinobacteria on tropical bryophytes
topic Bryophyte
Plant growth-promoting actinomycetes
Deep-sea actinobacteria
Endophytic actinobacteria
Plant-microbe interactions
Colonization
url http://www.sciencedirect.com/science/article/pii/S2666517424000671
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