Biocontrol strategies: an eco-smart tool for integrated pest and diseases management

Jaiswal, Durgesh Kumar; Gawande, S. J.; Soumia, P. S.; Krishna, Ram; Vaishnav, Anukool; Ade, Avinash B.

doi:10.1186/s12866-022-02744-2

Cited by 25 publications

(15 citation statements)

References 50 publications

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“…IPM is a widely used strategy in modern agriculture [67]. The results from the tests examining the tolerance of the selected biocontrol microorganisms to different types of agricultural pesticides suggest that they have the potential to be combined with chemical pesticides within the frames of IPM strategies.…”

Section: Discussionmentioning

confidence: 99%

Development of a Multicomponent Microbiological Soil Inoculant and Its Performance in Sweet Potato Cultivation

et al. 2023

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The cultivation and consumption of sweet potato (Ipomoea batatas) are increasing globally. As the usage of chemical fertilizers and pest control agents during its cultivation may lead to soil, water and air pollution, there is an emerging need for environment-friendly, biological solutions enabling increased amounts of healthy crop and efficient disease management. Microbiological agents for agricultural purposes gained increasing importance in the past few decades. Our goal was to develop an agricultural soil inoculant from multiple microorganisms and test its application potential in sweet potato cultivation. Two Trichoderma strains were selected: Trichoderma ghanense strain SZMC 25217 based on its extracellular enzyme activities for the biodegradation of plant residues, and Trichoderma afroharzianum strain SZMC 25231 for biocontrol purposes against fungal plant pathogens. The Bacillus velezensis strain SZMC 24986 proved to be the best growth inhibitor of most of the nine tested strains of fungal species known as plant pathogens, therefore it was also selected for biocontrol purposes against fungal plant pathogens. Arthrobacter globiformis strain SZMC 25081, showing the fastest growth on nitrogen-free medium, was selected as a component with possible nitrogen-fixing potential. A Pseudomonas resinovorans strain, SZMC 25872, was selected for its ability to produce indole-3-acetic acid, which is among the important traits of potential plant growth-promoting rhizobacteria (PGPR). A series of experiments were performed to test the selected strains for their tolerance to abiotic stress factors such as pH, temperature, water activity and fungicides, influencing the survivability in agricultural environments. The selected strains were used to treat sweet potato in two separate field experiments. Yield increase was observed for the plants treated with the selected microbial consortium (synthetic community) in comparison with the control group in both cases. Our results suggest that the developed microbial inoculant has the potential to be used in sweet potato plantations. To the best of our knowledge, this is the first report about the successful application of a fungal-bacterial consortium in sweet potato cultivation.

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Section: Discussionmentioning

confidence: 99%

Development of a Multicomponent Microbiological Soil Inoculant and Its Performance in Sweet Potato Cultivation

et al. 2023

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“…However, the overuse of chemical pesticides can severely harm the environment and human health ( Pathak et al, 2022 ). Therefore, developing biopesticides is an effective solution to the issue of pesticide pollution, which can replace some chemical pesticides ( Jaiswal et al, 2022 ). Biogenic protein elicitors typically arise from plant-pathogen interactions as a substance that activates the plant defense response ( Wei et al, 1992 ).…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization revealed the role of thaumatin-like proteins of Rhizoctonia solani AG4-JY in inducing maize disease resistance

Liu,

Feng,

Liu

et al. 2024

Front. Microbiol.

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The gene family of thaumatin-like proteins (TLPs) plays a crucial role in the adaptation of organisms to environmental stresses. In recent years, fungal secreted proteins (SP) with inducing disease resistance activity in plants have emerged as important elicitors in the control of fungal diseases. Identifying SPs with inducing disease resistance activity and studying their mechanisms are crucial for controlling sheath blight. In the present study, 10 proteins containing the thaumatin-like domain were identified in strain AG4-JY of Rhizoctonia solani and eight of the 10 proteins had signal peptides. Analysis of the TLP genes of the 10 different anastomosis groups (AGs) showed that the evolutionary relationship of the TLP gene was consistent with that between different AGs of R. solani. Furthermore, it was found that RsTLP3, RsTLP9 and RsTLP10 were regarded as secreted proteins for their signaling peptides exhibited secretory activity. Prokaryotic expression and enzyme activity analysis revealed that the three secreted proteins possess glycoside hydrolase activity, suggesting they belong to the TLP family. Additionally, spraying the crude enzyme solution of the three TLP proteins could enhance maize resistance to sheath blight. Further analysis showed that genes associated with the salicylic acid and ethylene pathways were up-regulated following RsTLP3 application. The results indicated that RsTLP3 had a good application prospect in biological control.

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“…However, they revealed harmful impacts on the environment, predators and humans (Alhewairini and Al‐Azzazy, 2020). On the other hand, biological control represents an eco‐friendly, safe and efficient strategy for controlling mite pests infesting plant species without harming the environment (Al‐Azzazy and Alhewairini, 2020; Jaiswal et al ., 2022).…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Biological Control of Mite Species Infesting Olive Trees through Application of Predatory Mite Agistemus exsertus Gonzalez (Acari: Stigmaeidae) and Eco‐Friendly Natural Compounds

El‐Esawi,

Alayafi

2023

Physiologia Plantarum

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Olive (Olea europaea L.) is a subtropical tree cultivated in arid, dry and temperate regions. Olive orchards in Al‐Jouf of Saudi Arabia are the largest worldwide and currently face harmful pest infestation. The present study aimed at evaluating the efficiency of the predatory mite Agistemus exsertus Gonzalez (Acari: Stigmaeidae) and the exogenously applied melatonin (MT), glycine betaine (GB) and 5‐aminolevulinic acid (ALA) as eco‐friendly approaches for enhancing the biological control of four mite species (Tegolophus hassani, Oxycenus niloticus, Aceria olivi and Tetranychus urticae) infesting olive trees in Al‐Jouf under laboratory and field conditions. Field experiment was conducted on 6‐year‐old Manzanillo olive trees grown in a private orchard farm in Al‐Jouf during two seasons, 2020 and 2021. Results revealed that A. exsertus developed successfully from egg to adult. The females of T. hassani, O. niloticus, A. olivi, and T. urticae required 7.36, 8.89, 9.98 and 8.38 days, respectively, to develop from egg to adult at 28°C and 65 ± 5% relative humidity. O. niloticus was the most preferred prey of A. exsertus. The net reproductive rate (R0) was 42.1, 38.7, 34.6 and 36.8 females/female/generation, the intrinsic rate of increase (rm) was 0.27, 0.26, 0.23 and 0.20 females/female/day, and the mean generation time (T) was 16.2, 17.1, 18.6 and 17.2 days when a predator consumed T. hassani, O. niloticus, A. olivi and T. urticae, respectively. The adult female consumed daily about 114 O. niloticus, 105 A. olivi, 95 T. hassani and 15.2 T. urticae individuals, respectively. A. exsertus proved to be an effective biocontrol agent against mites infesting olive trees. In addition, the exogenous application of 1 mM MT, 15 mM GB and 25 mg/L ALA, alone or in combination, caused significant mortality for the four mites. Application of these natural compounds, alone or in combination, also significantly enhanced the growth, relative water content, relative chlorophyll, content of flavonoid and nutrients, antioxidant enzymes activities, stress‐related genes expression and fruit yield and quality of the infested olive trees compared to non‐treated infested trees. This study is the first that demonstrates the efficiency of these eco‐friendly approaches for controlling mites infesting olive trees, and could be used as a replacement for the harmful chemical acaricides.

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Biocontrol strategies: an eco-smart tool for integrated pest and diseases management

Cited by 25 publications

References 50 publications

Development of a Multicomponent Microbiological Soil Inoculant and Its Performance in Sweet Potato Cultivation

Development of a Multicomponent Microbiological Soil Inoculant and Its Performance in Sweet Potato Cultivation

Molecular characterization revealed the role of thaumatin-like proteins of Rhizoctonia solani AG4-JY in inducing maize disease resistance

Enhancing the Biological Control of Mite Species Infesting Olive Trees through Application of Predatory Mite Agistemus exsertus Gonzalez (Acari: Stigmaeidae) and Eco‐Friendly Natural Compounds

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