Lettuce growth improvement by Azospirillum argentinense and fluorescent Pseudomonas co-inoculation depends on strain compatibility

Díaz, Pablo R; Merlo, Fracisco; Carrozzi, Liliana; Valverde, Claudio; Creus, Cecilia M.; Maroniche, Guillermo Andrés

doi:10.1016/j.apsoil.2023.104969

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…Single-strain inoculants generally performed better (stronger reduction of insect traits) but this may be due to the choice of multi-strain inoculant communities as opposed to loss of effect. Interestingly, for the sucking herbivores, single-strain Bacillus inoculants performed better than multi-strain Bacillus inoculants, indicating potential strain incompatibility could affect outcomes (Díaz et al 2023). Lastly, we also observed a loss of insect fitness reduction under field trial conditions compared to controlled pots.…”

Section: Discussionmentioning

confidence: 64%

Rhizobacteria inoculation of plants for reducing insect pests: A meta-analysis on insect behaviour and fitness

Zytynska,

Parker,

Sanchez-Mahecha

2024

Preprint

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Rhizobacteria inoculation of plants has shown promising potential for enhancing resistance against insect pests by reducing herbivore fitness and altering herbivore-natural enemy interactions. Understanding interactions among specific rhizobacterial species and their plants in the rhizosphere is crucial for developing effective strategies to harness these benefits for pest management in agriculture. We present a meta-analysis examining the impact of rhizobacteria inoculation on herbivore interactions with plants. The findings indicate that rhizobacteria inoculation generally reduces herbivore fitness and host choice behaviours. Rhizobacteria inoculation may also enhance the recruitment of natural enemies of herbivores, thus increasing top-down predator control. The effects on herbivores varied significantly depending on the rhizobacterial species, with Bacillus spp. showing stronger effects compared to other commonly studied Pseudomonas spp. Rhizobacteria notably reduced traits such as host choice, leaf consumption, survival, and reproduction of chewing herbivores, while primarily impacting sucking herbivores by reducing reproduction. Single-strain inoculants tended to perform better, especially for sucking herbivores, suggesting potential strain incompatibility issues with multi-strain inoculants. Furthermore, field trials showed less impact on insect fitness reduction compared to experiments under controlled conditions, possibly due to soil diversity and environmental factors affecting inoculant persistence. These results underscore the need for considering broader environmental interactions when developing effective rhizobacteria-based pest management strategies. Understanding specific and generalist rhizosphere interactions can aid in developing synthetic microbial communities with broad protective functions across various plants and environments.

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Section: Discussionmentioning

confidence: 64%

Rhizobacteria inoculation of plants for reducing insect pests: A meta-analysis on insect behaviour and fitness

Zytynska,

Parker,

Sanchez-Mahecha

2024

Preprint

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“…Estas interacciones dependen de la síntesis y percepción de compuestos físicos y químicos (Leach et al, 2017). Díaz et al (2023) probaron el crecimiento de lechuga con la inoculación simultánea de Azospirillum argentiniense y Pseudomonas fluorescens, en el que mencionan que las cepas compatibles muestran sinergia en el crecimiento y las que no son compatibles interfieren entre ellas con la capacidad de promoción del crecimiento.…”

Section: Discussionunclassified

Effect of a plant growth-promoting rhizobacteria consortium to promote growth in lettuce (Lactuca sativa L.) and chili pepper (Capsicum annuum L.)

Bugueño-Guerrero,

Catalán-Barrera,

Carballo-Sánchez

2024

Mexjbiotechnol

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Plant growth-promoting rhizobacteria (PGPR) are biostimulants that favor plant development. We evaluated the effect of PGPR in chilli pepper (Capsicum annuum L.) and lettuce (Lactuca sativa L.). An experimental design of 5 treatments and 4 replicates was used for each crop. The bacterial species were Achromobacter xylosoxidans (C56), Arthobacter pokkalii (JLB4), Bacillus pumilus (AV5) and their combination as a consortium. The variables evaluated were: plant height, shoot diameter, relative chlorophyll index (SPAD) and freshweight of aerial part. In these experiments were observed significant differences with C56 to stimulate 11% plant height compared with the other treatments. Bacterial consortium stimulates 7.8% the relative chlorophyll index in lettuce and showing a trend to stimulate freshweight in both plants. The use of PGPR in consortium is an alternative that should be further studied to minimize the use of chemicals, enhance agricultural practicese and mitigate climate change.

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Microbial Consortia: Promising Tool as Plant Bioinoculants for Agricultural Sustainability

Negi,

Sharma,

Jan

et al. 2024

Curr Microbiol

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Lettuce growth improvement by Azospirillum argentinense and fluorescent Pseudomonas co-inoculation depends on strain compatibility

Cited by 5 publications

References 26 publications

Rhizobacteria inoculation of plants for reducing insect pests: A meta-analysis on insect behaviour and fitness

Rhizobacteria inoculation of plants for reducing insect pests: A meta-analysis on insect behaviour and fitness

Effect of a plant growth-promoting rhizobacteria consortium to promote growth in lettuce (Lactuca sativa L.) and chili pepper (Capsicum annuum L.)

Microbial Consortia: Promising Tool as Plant Bioinoculants for Agricultural Sustainability

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