Application of sonicated extracts of cyanobacteria and microalgae for the mitigation of bacterial canker in tomato seedlings

Toribio, Ana J.; Jurado, M.M.; Suárez‐Estrella, F.; López-González, Juan A.; Martínez-Gallardo, Maria R.; López, M.J.

doi:10.1007/s10811-021-02599-6

Cited by 17 publications

(4 citation statements)

References 81 publications

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“…Leptolyngbya increased the defense capacity of tomato plants against tomato bacterial cancer ( Clavibacter michiganensis subs. michiganensis ) [ 48 ]. Rhodocytophaga is a genus often associated with soils with high organic matter content and high salinity [ 49 ].…”

Section: Discussionmentioning

confidence: 99%

PGPB and/or AM Fungi Consortia Affect Tomato Native Rhizosphere Microbiota

et al. 2023

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Tomatoes are one of the most important crops worldwide and also play a central role in the human diet. Microbial consortia are microorganism associations, often employed as bioinoculants, that can interact with the native rhizosphere microbiota. The aim of this study was to evaluate the impact of a bacterial-based biostimulant (Pseudomonas fluorescens and Bacillus amyloliquefaciens) (PSBA) in combination, or not, with a commercial inoculum Micomix (Rhizoglomus irregulare, Funnelliformis mosseae, Funnelliformis caledonium, Bacillus licheniformis, Bacillus mucilaginosus) (MYC) on the native rhizosphere communities and on tomato production. The trial was carried out using Solanum lycopersicum in an open field as follows: control full NPK (CFD), control reduced NPK (CRD), MYC, PSBA, PSBA + MYC. Bacterial population in the different samples were characterized using a next generation sequencing approach. The bioinocula effect on the native rhizosphere microbiota resulted in significant variation both in alpha and beta diversity and in a specific signature associated with the presence of biostimulants, especially in the presence of co-inoculation (PSBA + MYC). In particular, the high initial biodiversity shifts in the community composition occurred and consisted in the increase in the abundance of genera correlated to the soil acidification and in an enhanced density of nitrogen-fixing microbes. The results also highlighted the well-known rhizosphere effect.

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Section: Discussionmentioning

confidence: 99%

PGPB and/or AM Fungi Consortia Affect Tomato Native Rhizosphere Microbiota

et al. 2023

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“…These hormones are responsible for the induction of shoots as well as adventitious roots at petiolar and internodal segments (Zhao et al, 2021). Thus, cytokinins produced from cyanobacteria can be used for the in vitro regeneration of plants (Toribio et al, 2021). Toribio et al (2020) observed an enhanced radicle and aerial growth of cucumber seedlings after cyanobacterial inoculation with Trichormus SAB-M304 and Nostoc SAB-M251, due to the cytokinin secretion by these organisms.…”

Section: Cytokinin Production By Cyanobacteriamentioning

confidence: 99%

Cytokinin biosynthesis in cyanobacteria: Insights for crop improvement

Uniyal

Bhandari²,

Singh³

et al. 2022

Front. Genet.

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Cytokinins, a type of phytohormones that induce division of cytoplasm, have considerable value in agriculture due to their influences on several physiological processes of plants such as morphogenesis, development of chloroplast, seed dormancy, leaf senescence, etc. Previously, it was assumed that plants obtain cytokinin from the soil produced by microbes as these hormones were first discovered in soil-inhabiting bacteria i.e., Agrobacterium tumefaciens. Later, the cytokinin biosynthesis gene, i.e., ipt gene, has been reported in plants too. Though plants synthesize cytokinins, several studies have reported that the exogenous application of cytokinins has numerous beneficial effects including the acceleration of plant growth and boosting economic yield. Cyanobacteria may be employed in the soil not only as the source of cytokinins but also as the source of other plant growth-promoting metabolites. These organisms biosynthesize the cytokinins using the enzyme isopentenyl transferases (IPTs) in a fashion similar to the plants; however, there are few differences in the biosynthesis mechanism of cytokinins in cyanobacteria and plants. Cytokinins are important for the establishment of interaction between plants and cyanobacteria as evidenced by gene knockout experiments. These hormones are also helpful in alleviating the adverse effects of abiotic stresses on plant development. Cyanobacterial supplements in the field result in the induction of adventitious roots and shoots on petiolar as well as internodal segments. The leaf, root, and stem explants of certain plants exhibited successful regeneration when treated with cyanobacterial extract/cell suspension. These successful regeneration practices mark the way of cyanobacterial deployment in the field as a great move toward the goal of sustainable agriculture.

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“…They move through the vascular tissue (xylem) to the leaves, fruits, and other parts of the plants where growth and differentiation are required. The introduction of CKs can improve tomato plant and fruits development and as well as the potential to improve pathogenesis in the tomato plant ( Toribio et al, 2021 ). CKs also perform a specific role with auxin to reverse senescence in plants by modifying the level of proteins and synthesizing chlorophyll in the leaves to reduce the yellowing of leaves in plants ( Guo et al, 2021 ).…”

Section: The Rhizospherementioning

confidence: 99%

The application of plant growth-promoting rhizobacteria in Solanum lycopersicum production in the agricultural system: a review

Adedayo

Babalola

Prigent‐Combaret

et al. 2022

PeerJ

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Food safety is a significant challenge worldwide, from plantation to cultivation, especially for perishable products such as tomatoes. New eco-friendly strategies are needed, and beneficial microorganisms might be a sustainable solution. This study demonstrates bacteria activity in the tomato plant rhizosphere. Further, it investigates the rhizobacteria’s structure, function, and diversity in soil. Rhizobacteria that promote the growth and development of tomato plants are referred to as plant growth-promoting bacteria (PGPR). They form a series of associations with plants and other organisms in the soil through a mutualistic relationship where both parties benefit from living together. It implies the antagonistic activities of the rhizobacteria to deter pathogens from invading tomato plants through their roots. Some PGPR are regarded as biological control agents that hinder the development of spoilage organisms and can act as an alternative for agricultural chemicals that may be detrimental to the health of humans, animals, and some of the beneficial microbes in the rhizosphere soil. These bacteria also help tomato plants acquire essential nutrients like potassium (K), magnesium (Mg), phosphorus (P), and nitrogen (N). Some rhizobacteria may offer a solution to low tomato production and help tackle food insecurity and farming problems. In this review, an overview of soil-inhabiting rhizobacteria focused on improving the sustainable production of Solanum lycopersicum.

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Application of sonicated extracts of cyanobacteria and microalgae for the mitigation of bacterial canker in tomato seedlings

Cited by 17 publications

References 81 publications

PGPB and/or AM Fungi Consortia Affect Tomato Native Rhizosphere Microbiota

PGPB and/or AM Fungi Consortia Affect Tomato Native Rhizosphere Microbiota

Cytokinin biosynthesis in cyanobacteria: Insights for crop improvement

The application of plant growth-promoting rhizobacteria in Solanum lycopersicum production in the agricultural system: a review

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