Combined of salicylic acid and Pseudomonas fluorescens CHA0 on the expression of PR1 gene and control of Meloidogyne javanica in tomato

Dehghanian, Seyedeh Zahra; Abdollahi, Mohammad; Charehgani, Habiballah; Niazi‎, Ali

doi:10.1016/j.biocontrol.2019.104134

Cited by 22 publications

(10 citation statements)

References 27 publications

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“…The search for novel biocontrol often leads to the plant rhizosphere, where the number of bacteria is 100 times higher than in other regions. These bacteria are mainly Bacillus and Pseudomonas and play a significant role in biocontrol by suppressing RKNs ( Mandic-Mulec et al, 2015 ; Abd-Elgawad, 2016 ; Dehghanian et al, 2020 ). Compared with other biological control bacteria, Bacillus has outstanding advantages in production, transportation, storage, and application ( Lalloo et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

The Biocontrol Functions of Bacillus velezensis Strain Bv-25 Against Meloidogyne incognita

Tian

Zhao

et al. 2022

Front. Microbiol.

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Meloidogyne incognita is obligate parasitic nematode with a wide variety of hosts that causes huge economic losses every year. In an effort to identify novel bacterial biocontrols against M. incognita, the nematicidal activity of Bacillus velezensis strain Bv-25 obtained from cucumber rhizosphere soil was measured. Strain Bv-25 could inhibit the egg hatching of M. incognita and had strong nematicidal activity, with the mortality rate of second-stage M. incognita juveniles (J2s) at 100% within 12 h of exposure to Bv-25 fermentation broth. The M. incognita genes ord-1, mpk-1, and flp-18 were suppressed by Bv-25 fumigation treatment after 48 h. Strain Bv-25 could colonize cucumber roots, with 5.94 × 107 colony-forming units/g attached within 24 h, effectively reducing the infection rate with J2s by 98.6%. The bacteria up-regulated the expression levels of cucumber defense response genes pr1, pr3, and lox1 and induced resistance to M. incognita in split-root trials. Potted trials showed that Bv-25 reduced cucumber root knots by 73.8%. The field experiment demonstrated that disease index was reduced by 61.6%, cucumber height increased by 14.4%, and yield increased by 36.5% in Bv-25–treated plants compared with control. To summarize, B. velezensis strain Bv-25 strain has good potential to control root-knot nematodes both when colonizing the plant roots and through its volatile compounds.

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Section: Introductionmentioning

confidence: 99%

The Biocontrol Functions of Bacillus velezensis Strain Bv-25 Against Meloidogyne incognita

Tian

Zhao

et al. 2022

Front. Microbiol.

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“…Treatment of tomato plants with the rhizosphere bacteria Pseudomonas fluorescens CHA0 prevented the decrease of plant growth, as well as the fresh and dry weight of shoots and roots, induced by nematodes Meloidogyne javanica [ 19 ]. However, in the latter case the observed prevention could be due to a decrease of the pest reproduction rate on the roots of treated plants.…”

Section: Discussionmentioning

confidence: 99%

Endophytic Strain Bacillus subtilis 26D Increases Levels of Phytohormones and Repairs Growth of Potato Plants after Colorado Potato Beetle Damage

Sorokan

Веселова

Benkovskaya

et al. 2021

Plants

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Plant damage caused by defoliating insects has a long-term negative effect on plant growth and productivity. Consequently, the restoration of plant growth after exposure to pathogens or pests is the main indicator of the effectiveness of the implemented defense reactions. A short-term Leptinotarsa decemlineata Say attack on potato tube-grown plantlets (Solanum tuberosum L.) led to a reduction of both the length and mass of the shoots in 9 days. The decrease of the content of phytohormones—indole-3-acetic acid (IAA), abscisic acid (ABA), zeatin and zeatin–riboside—in shoots of damaged potato plants was found. Endophytic strain Bacillus subtilis 26D (Cohn) is capable of secreting up to 83.6 ng/mL IAA and up to 150 ng/mL cytokinins into the culture medium. Inoculation of potato plants with cells of the B. subtilis 26D increases zeatin–riboside content in shoots and the mass of roots of undamaged plants, but does not influence content of IAA and ABA and growth of shoots. The presence of B. subtilis 26D in plant tissues promoted a rapid recovery of the growth rates of shoots, as well as the wet and dry mass of roots of plants after the pest attack, which we associate with the maintenance of a high level of IAA, ABA and cytokinins in their tissues.

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“…Many reports have shown that PGPB can promote plant growth and enhance yield from plants affected by nematodes under greenhouse, microplot and field conditions [ 6 , 22 , 43 , 55 , 56 , 57 , 58 , 59 , 60 ]. A microplot experiment was carried out in the National Agriculture Research Center (Tsukuba, Japan) on low-humic and M.incognita infested soil to ivestigate the nematicidal effects of Pasteuria penetrans .…”

Section: Growth Stimulation and Productivity Of Plantsmentioning

confidence: 99%

“…Particular attention is paid to the members of the families Bacillaceae and Pseudomonadaceae, focusing on their applications to control the nematode of the Meloidogyne genus. Bacilli and pseudomonads widely occur in natural environments, especially in the root system of plants [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Bacteria as Biocontrol Tool against Phytoparasitic Nematodes

Мигунова

Sasanelli

2021

Plants

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Phytoparasitic nematodes cause severe damage and yield losses to numerous agricultural crops. Considering the revision of the EU legislation on the use of pesticides on agricultural crops, control strategies with low environmental impact are required. The approach based on the use of bacteria seems particularly promising as it also helps to reduce the applied amounts of chemicals and stabilize ecological changes. This paper gives an overview of the main types of bacteria that can be used as biological control agents against plant parasitic nematodes and their interrelationships with plants and other organisms. Many experiments have given positive results of phytoparasitic nematode control by bacteria, showing possible prospects for their application. In vitro, greenhouse and field experiments have shown that bacteria can regulate the development of ecto- and endoparasitic nematodes by different modes of action. Triggering the induction of plant defense mechanisms by bacteria is seen as the optimum tool because the efficacy of bacterial treatment can be higher than that of chemical pesticides or at least close to it. Moreover, bacterial application produces additional positive effects on growth stimulation, raises yields and suppresses other pathogenic microorganisms. Commercial formulations, both as single bacterial strains and bacterial complexes, are examined.

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Combined of salicylic acid and Pseudomonas fluorescens CHA0 on the expression of PR1 gene and control of Meloidogyne javanica in tomato

Cited by 22 publications

References 27 publications

The Biocontrol Functions of Bacillus velezensis Strain Bv-25 Against Meloidogyne incognita

The Biocontrol Functions of Bacillus velezensis Strain Bv-25 Against Meloidogyne incognita

Endophytic Strain Bacillus subtilis 26D Increases Levels of Phytohormones and Repairs Growth of Potato Plants after Colorado Potato Beetle Damage

Bacteria as Biocontrol Tool against Phytoparasitic Nematodes

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