Revisiting bacterial volatile-mediated plant growth promotion: lessons from the past and objectives for the future

Sharifi, Rouhallah; Ryu, Choong-Min

doi:10.1093/aob/mcy108

Cited by 158 publications

(90 citation statements)

References 91 publications

(164 reference statements)

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“…This methodology has shown that a large number of PGPRs may modify the RSA as well as root functionality, leading to the increase in uptake of nutrients and water and improve the overall growth of the whole plant [47]. A common pattern of root architecture adaptation to PGPR, including the reduction of the primary roots growth, was enhanced lateral root branching and development of root hairs was also documented [3,5,52,59]. In this study, PS01 altered the Arabidopsis RSA by inhibiting primary root elongation and promoting lateral root and root hair formation.…”

Section: Discussionmentioning

confidence: 93%

“…In addition to IAA, VOCs produced by bacteria may not only promote plant growth by modifying the root architecture system but also by playing an important role in inducing systemic resistance against plant pathogen. It has been suggested that 2,3-butanediol and its precursor acetoin play a role on plant growth promotion [52]. In this study, genes involved in acetoin and 2,3-butaneldiol synthesis such as acetolactate synthase, acetolactate decarboxylase, butaneldiol dehydrogenase and acetoin reductase were identified in the PS01 genome (Table S2).…”

Section: Identification Of Genes Associated With Iaa and Vocs Productmentioning

confidence: 85%

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Pseudomonas PS01 Isolated from Maize Rhizosphere Alters Root System Architecture and Promotes Plant Growth

2020

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The objectives of this study were to evaluate the plant growth promoting effects on Arabidopsis by Pseudomonas sp. strains associated with rhizosphere of crop plants grown in Mekong Delta, Vietnam. Out of all the screened isolates, Pseudomonas PS01 isolated from maize rhizosphere showed the most prominent plant growth promoting effects on Arabidopsis and maize (Zea mays). We also found that PS01 altered root system architecture (RSA). The full genome of PS01 was resolved using high-throughput sequencing. Phylogenetic analysis identified PS01 as a member of the Pseudomonas putida subclade, which is closely related to Pseudomonas taiwanensis.. PS01 genome size is 5.3 Mb, assembled in 71 scaffolds comprising of 4820 putative coding sequence. PS01 encodes genes for the indole-3-acetic acid (IAA), acetoin and 2,3-butanediol biosynthesis pathways. PS01 promoted the growth of Arabidopsis and altered the root system architecture by inhibiting primary root elongation and promoting lateral root and root hair formation. By employing gene expression analysis, genetic screening and pharmacological approaches, we suggested that the plant-growth promoting effects of PS01 and the alteration of RSA might be independent of bacterial auxin and could be caused by a combination of different diffusible compounds and volatile organic compounds (VOCs). Taken together, our results suggest that PS01 is a potential candidate to be used as bio-fertilizer agent for enhancing plant growth.

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Section: Discussionmentioning

confidence: 93%

Section: Identification Of Genes Associated With Iaa and Vocs Productmentioning

confidence: 85%

Pseudomonas PS01 Isolated from Maize Rhizosphere Alters Root System Architecture and Promotes Plant Growth

2020

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“…Regarding signalling, an advanced publication (Ye et al ., ) indicates a role for mitogen‐activated kinases and WRKY transcription factors in indole‐mediated priming, similar to what has been shown for GLV signaling in Arabidopsis (Ameye et al ., ), perhaps pointing to signalling commonalities. Finally, one very intriguing aspect is the response of plants to microbial volatiles (Ryu et al ., ; Sharifi and Ryu, ). With, for instance, clear growth responses to specific volatiles as read out, genetic screens to identify potential receptors and signal transduction cascades should be more feasible than with volatiles in plant−plant communication (Scala et al ., ).…”

Section: Molecular Mechanisms Underlying Voc Perceptionmentioning

confidence: 99%

The role of volatiles in plant communication

et al. 2019

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SummaryVolatiles mediate the interaction of plants with pollinators, herbivores and their natural enemies, other plants and micro‐organisms. With increasing knowledge about these interactions the underlying mechanisms turn out to be increasingly complex. The mechanisms of biosynthesis and perception of volatiles are slowly being uncovered. The increasing scientific knowledge can be used to design and apply volatile‐based agricultural strategies.

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“…Besides degradation of plant compounds, LAB also produce metabolites that directly affect plant development (e.g. 2,3‐butanediol and acetoin) (Pedersen et al ., ; Sharifi and Ryu, ). This was shown for L. plantarum WCFS1, which when incubated under slow growth, substrate‐limited conditions, was found to produce plant hormone‐like compounds that interfered with plant root development (Goffin et al ., ).…”

Section: Characteristics Of Lab Relevant For Colonization Of Plant Sumentioning

confidence: 99%

Abundance, diversity and plant‐specific adaptations of plant‐associated lactic acid bacteria

Leveau

Marco

2019

Environ Microbiol Rep

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Summary Lactic acid bacteria (LAB) are essential for many fruit, vegetable and grain food and beverage fermentations. However, the numbers, diversity and plant‐specific adaptions of LAB found on plant tissues prior to the start of those fermentations are not well understood. When measured, these bacteria have been recovered from the aerial surfaces of plants in a range from <10 CFU g−1 to over 108.5 CFU g−1 of plant tissue and in lower quantities from the soil and rhizosphere. Plant‐associated LAB include well‐known generalist taxa such as Lactobacillus plantarum and Leuconostoc mesenteroides, which are essential for numerous food and beverage fermentations. Other plant‐associated LAB encompass specialist taxa such as Lactobacillus florum and Fructobacillus, many of which were discovered relatively recently and their significance on plants and in foods is not yet recognized. LAB recovered from plants possess the capacity to consume plant sugars, detoxify phenolic compounds and tolerate the numerous biotic and abiotic stresses common to plant surfaces. Although most generalist and some specialist LAB grow rapidly in food and beverages fermentations and can cause spoilage of fresh and fermented fruits and vegetables, the importance of living plants as habitats for these bacteria and LAB contributions to plant microbiomes remain to be shown.

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Revisiting bacterial volatile-mediated plant growth promotion: lessons from the past and objectives for the future

Cited by 158 publications

References 91 publications

Pseudomonas PS01 Isolated from Maize Rhizosphere Alters Root System Architecture and Promotes Plant Growth

Pseudomonas PS01 Isolated from Maize Rhizosphere Alters Root System Architecture and Promotes Plant Growth

The role of volatiles in plant communication

Abundance, diversity and plant‐specific adaptations of plant‐associated lactic acid bacteria

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