A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses

A plant-growth promoting bacterial consortium of halotolerant Bacillus sp. and Pseudomonas sp. was evaluated for the ability to prime banana (Musa acuminata cv. Berangan) plants against abiotic (salinity) and biotic (Foc-TR4) stress challenges. PGPB consortium-primed banana plants showed better grow...

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Main Authors: Abdussabur M. Kaleh, Pooja Singh, Purabi Mazumdar, Gwo Rong Wong, Kah Ooi Chua, Jennifer Ann Harikrishna
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Current Plant Biology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214662823000233
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author Abdussabur M. Kaleh
Pooja Singh
Purabi Mazumdar
Gwo Rong Wong
Kah Ooi Chua
Jennifer Ann Harikrishna
author_facet Abdussabur M. Kaleh
Pooja Singh
Purabi Mazumdar
Gwo Rong Wong
Kah Ooi Chua
Jennifer Ann Harikrishna
author_sort Abdussabur M. Kaleh
collection DOAJ
description A plant-growth promoting bacterial consortium of halotolerant Bacillus sp. and Pseudomonas sp. was evaluated for the ability to prime banana (Musa acuminata cv. Berangan) plants against abiotic (salinity) and biotic (Foc-TR4) stress challenges. PGPB consortium-primed banana plants showed better growth (plant height, root length and root biomass) and improved physiological parameters (relative water content, chlorophyll, and carotenoid contents) in both stressed conditions compared to non-primed banana plants. In addition, primed banana plants showed a reduction in lipid peroxidation and an increase in proline and antioxidant enzymatic activities (superoxide dismutase, catalase, ascorbate peroxidase, peroxidase, and glutathione reductase). In salt-stress conditions (sea salt at 100 mM NaCl equivalent), primed plants showed higher levels of K+, Ca2+, and Mg2+ and lower levels of Cl- and Na+ compared to non-primed salt-stressed plants. Under Foc-TR4 stress, the primed plants showed significant enhancement in the levels of total soluble phenolics, lignin content and defense-related enzyme activities (β-1, 3-glucanase, phenylalanine ammonia lyase, chitinase, polyphenol oxidase, and lipoxygenase). Expression analysis of nine stress-responsive MaWRKY genes (MaWRKY4, MaWRKY23, MaWRKY24, MaWRKY25, MaWRKY28, MaWRKY45, MaWRKY65, MaWRKY89 and MaWRKY145) showed significant upregulation in primed banana plants under salt and Foc-TR4 stresses compared to non-primed plants. These results demonstrate that inoculation with the PGPB consortium improved banana plant growth characteristics and primed WRKY-mediated protection against abiotic and biotic stresses.
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spelling doaj.art-399af53d89c945f9b36f490ad1e0cffd2023-12-15T07:24:25ZengElsevierCurrent Plant Biology2214-66282023-09-0135100294A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stressesAbdussabur M. Kaleh0Pooja Singh1Purabi Mazumdar2Gwo Rong Wong3Kah Ooi Chua4Jennifer Ann Harikrishna5Centre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, Malaysia; Institute of Biolocial Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, MalaysiaSchool of Science, Monash University Malaysia, 47500 Bandar Sunway, Selangor, MalaysiaCentre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, MalaysiaCentre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, MalaysiaCentre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, MalaysiaCentre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, Malaysia; Institute of Biolocial Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Corresponding author at: Centre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur 50603, Malaysia.A plant-growth promoting bacterial consortium of halotolerant Bacillus sp. and Pseudomonas sp. was evaluated for the ability to prime banana (Musa acuminata cv. Berangan) plants against abiotic (salinity) and biotic (Foc-TR4) stress challenges. PGPB consortium-primed banana plants showed better growth (plant height, root length and root biomass) and improved physiological parameters (relative water content, chlorophyll, and carotenoid contents) in both stressed conditions compared to non-primed banana plants. In addition, primed banana plants showed a reduction in lipid peroxidation and an increase in proline and antioxidant enzymatic activities (superoxide dismutase, catalase, ascorbate peroxidase, peroxidase, and glutathione reductase). In salt-stress conditions (sea salt at 100 mM NaCl equivalent), primed plants showed higher levels of K+, Ca2+, and Mg2+ and lower levels of Cl- and Na+ compared to non-primed salt-stressed plants. Under Foc-TR4 stress, the primed plants showed significant enhancement in the levels of total soluble phenolics, lignin content and defense-related enzyme activities (β-1, 3-glucanase, phenylalanine ammonia lyase, chitinase, polyphenol oxidase, and lipoxygenase). Expression analysis of nine stress-responsive MaWRKY genes (MaWRKY4, MaWRKY23, MaWRKY24, MaWRKY25, MaWRKY28, MaWRKY45, MaWRKY65, MaWRKY89 and MaWRKY145) showed significant upregulation in primed banana plants under salt and Foc-TR4 stresses compared to non-primed plants. These results demonstrate that inoculation with the PGPB consortium improved banana plant growth characteristics and primed WRKY-mediated protection against abiotic and biotic stresses.http://www.sciencedirect.com/science/article/pii/S2214662823000233BananaFusariumPriming against stressPGPBSalinity stressWRKY
spellingShingle Abdussabur M. Kaleh
Pooja Singh
Purabi Mazumdar
Gwo Rong Wong
Kah Ooi Chua
Jennifer Ann Harikrishna
A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
Current Plant Biology
Banana
Fusarium
Priming against stress
PGPB
Salinity stress
WRKY
title A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
title_full A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
title_fullStr A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
title_full_unstemmed A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
title_short A halotolerant plant growth promoting consortium of Bacillus sp. RB3 and Pseudomonas sp. EB3 primes banana, Musa acuminata cv. Berangan, against salinity and Foc-TR4 stresses
title_sort halotolerant plant growth promoting consortium of bacillus sp rb3 and pseudomonas sp eb3 primes banana musa acuminata cv berangan against salinity and foc tr4 stresses
topic Banana
Fusarium
Priming against stress
PGPB
Salinity stress
WRKY
url http://www.sciencedirect.com/science/article/pii/S2214662823000233
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