The role of Bacillus megaterium and other bio-agents in controlling root-knot nematodes infecting sugar beet under field conditions

Mostafa, Fatma; Khalil, A.; El-Deen, Ahmed H. Nour; Ibrahim, Doaa

doi:10.1186/s41938-018-0068-6

Cited by 21 publications

(15 citation statements)

References 13 publications

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Section: Discussionmentioning

confidence: 99%

“…Many studies have documented the benefits of adding B. megaterium as arhizosphere-colonizing bacteria owing to its nematicidal activity against several plant parasitic nematodes and proposed its use as a biological control agent in certain crops [23,36,81,82]. In this sense, Khalil et al [10] found that the final nematode population of Meloidogyne javanica and the productivity of the seedless grapevine cultivar "Flame" were significantly affected by the application of the bioproduct Bio-arc TM under field conditions.…”

Section: Plos Onementioning

confidence: 99%

“…Oxamyl is one of chemical nematicides in Egypt, which was shown to be useful to minimize the impact of PPNs and increase grape [10]. Although chemical nematicides are more effective in reducing nematode-associated yield losses than biological-based methods, in many regions, there are ongoing research efforts to find more environment-friendly strategies to manage nematode infections in economically relevant crops [5,36].…”

Section: Introductionmentioning

confidence: 99%

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Meloidogyne incognita population control and nutritional status and productivity of Thompson seedless grapevines managed with different treatments

2020

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A two-year field trial was conducted in a vineyard (northern Egypt)cultivated with Thompson seedless grapevines to evaluate the effectiveness of four "alternative" (biological/chemical) treatments, Bacillus megaterium, boric acid, calcium nitrate and chitosan, against the rootknot nematode Meloidogyne incognita (Mi), compared to that of the nematicide oxamyl. The influence of these treatments on plant nutritional status and fruit yield and quality was also assessed. All treatments significantly inhibited Mi reproduction parameters in both seasons, decreasing the numbers of nematode galls and egg masses (roots) and of second-stage juveniles (soil). Oxamyl application resulted in the highest reductions in Mi-reproduction parameters, followed by boric acid, which also showed the highest relative nematicidal efficacy (respect to oxamyl). In the 1st season, the highest fruit yield (10.34 kg/grapevine) was recorded from boric acid-treated plants, followed by that from oxamyl-treated plants (7.50 kg/grapevine); in the subsequent season (2019), oxamyl use led to the highest yield, followed by boric acid + chitosan use (10.04 and 8.62 kg/grapevine, respectively). In both seasons, application of boric acid alone and combined with chitosan enhanced the total soluble solids (TSS)/total acidity ratio in grape juice. All treatments led to higher nutrient contents (leaf petioles) and chlorophyll levels (leaves) as well as enhanced fruit size and weight. We conclude that the tested treatments can be safely applied for nematode management in Thompson seedless grapevines, with positive effects on fruit yield and quality.

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Section: Discussionmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Meloidogyne incognita population control and nutritional status and productivity of Thompson seedless grapevines managed with different treatments

2020

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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%

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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“…The phyto-parasitic nematode is one of the main harmful diseases and a threat to numerous agricultural crops (Mostafa et al, 2018;Eche and Okafor2020). Generally, rootknot nematodes (RKNS) are responsible for enormous qualitative and quantitative harm to these crops.…”

Section: Introductionmentioning

confidence: 99%

Rice Straw and Peanut Residues Biochars as Eco-Friendly Approaches for Controlling Root-Knot Nematode, Meloidogyne incognita Infecting Eggplant

Ahmed

2021

Egyptian Academic Journal of Biological Sciences, F. Toxicology

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The role of Bacillus megaterium and other bio-agents in controlling root-knot nematodes infecting sugar beet under field conditions

Cited by 21 publications

References 13 publications

Meloidogyne incognita population control and nutritional status and productivity of Thompson seedless grapevines managed with different treatments

Meloidogyne incognita population control and nutritional status and productivity of Thompson seedless grapevines managed with different treatments

Bacteria as Biocontrol Tool against Phytoparasitic Nematodes

Rice Straw and Peanut Residues Biochars as Eco-Friendly Approaches for Controlling Root-Knot Nematode, Meloidogyne incognita Infecting Eggplant

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