Pesticidal prospectives of chitinolytic bacteria in agricultural pest management

Subbanna, A. R. N. S.; Rajasekhara, H.; Stanley, J.; Mishra, Krishna Kant; Pattanayak, A.

doi:10.1016/j.soilbio.2017.09.019

Cited by 48 publications

(19 citation statements)

References 186 publications

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“…It has been stated that the important life-sustaining actions of phytopathogenic fungi, parasitic nematode, and phytophagous insects are the preeminent constraining variables of agricultural production organizations [5].…”

Section: Literature Reviewmentioning

confidence: 99%

Modern Technologies for Pest Control: A Review

Agarwal¹,

Verma²

2021

Heavy Metals - Their Environmental Impacts and Mitigation

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The major concern for farmers is important loss due to pests and diseases, which is regardless of any production system adopted. Plant pathogens, insects, and weed pests devastate over 40% of all possible sustenance creation every year. This loss happens despite utilizing approximately 3 million tons of pesticide per year in addition to the use of a variety of nonchemical controls such as biological controls and crop rotations. If some of this food could be saved from pest attack, it could be utilized to bolster an excess of 3 billion people who are malnourished in the world today. Expansive range of conventional insecticides such as carbamates, organophosphates, pyrethroids, and organochlorines were developed. They have been used to control insect pests in the course of recent decades, resulting in the reduction of the loss of agricultural yield. However, problems of resistance reaching crisis proportions, the extreme unfavorable impacts of pesticides on the environment, and public complaints led to stricter protocols and regulations directed to reduce their utilization. The pest control industry is continuously examining novel technologies and products that will improve the way to manage and prevent pests. The general objective is to likewise diminish the effects of various available pesticides on the environment and on nontarget creatures, besides the economic influence on bottom lines.

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Section: Literature Reviewmentioning

confidence: 99%

Modern Technologies for Pest Control: A Review

Agarwal¹,

Verma²

2021

Heavy Metals - Their Environmental Impacts and Mitigation

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“…Subbanna et al . () recently reviewed the prospect of using chitinolytic bacteria such as Pseudomonas and Bacillus , in agricultural pest management discussing their potential against insect pests, plant pathogenic fungi and PPNs. Ben Abdallah et al .…”

Section: Secondary Metabolites and Hydrolytic Enzymes Produced By Bacmentioning

confidence: 99%

“…Chitin is the second most abundant natural biopolymer on earth and serves as an energy source when it is degraded by bacterial chitinase (Hamid et al 2013). Chitinase can be categorized as either endochitinases or exochitinases based on their mode of action (Berini et al 2018) and can further be classified into five classes and two families, including family 18 and 19 of glycosyl hydrolases (Hamid et al 2013;Subbanna et al 2018). The majority of bacterial chitinases belong to family 18 (Hamid et al 2013).…”

Section: Hydrolytic Enzymesmentioning

confidence: 99%

“…Moreover, chitinases are harmless to nontarget organisms due to the absence of chitin in plants and vertebrates (Berini et al 2018). Subbanna et al (2018) It is however important to note that the production of microbial chitinase is regulated by a receptor-inducer system. This means that chitinase production can be significantly influenced by cultivation conditions and media constituents (Cheba et al 2018).…”

Section: Hydrolytic Enzymesmentioning

confidence: 99%

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Microbial metabolomics: essential definitions and the importance of cultivation conditions for utilizing Bacillus species as bionematicides

Horak

Engelbrecht

Rensburg

et al. 2019

J of Applied Microbiology

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Root‐knot nematodes are destructive phytopathogens that damage agricultural crops globally, and there is growing interest in the use of biocontrol based on rhizobacteria such as Bacillus to combat Meloidogyne species. It is hypothesized that nematicidal activity of Bacillus can be attributed to the production of secondary metabolites and hydrolytic enzymes. Yet, few studies have characterized these metabolites and their identities remain unknown. Others are speculative or fail to elaborate on how secondary metabolites were detected or distinguished from primary metabolites. Metabolites can be classified based on their origin as either intracellular or extracellular and based on their function, as either primary or secondary. Although this classification is in general use, the boundaries are not always well defined. An understanding of the secondary metabolite and hydrolytic enzyme classification of Bacillus species will facilitate investigations aimed at bionematicide development. This review summarizes the significance of Bacillus hydrolytic enzymes and secondary metabolites in bionematicide research and provides an overview of known classifications. The importance of appropriate cultivation conditions for optimum metabolite and enzyme production is also discussed. Finally, the use of metabolomics for the detection and identification of nematicidal compounds is considered.

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“…Well-known as the source of several drugs such as antibiotics, antitumor, immunosuppressants, antiviral and antiparasitic agents, microorganisms are responsible for the production of about 23,000 bioactive secondary metabolites (dos Reis Feitosa et al, 2014;Subbanna et al, 2018). Despite this large amount, only 150 of these compounds have been employed in pharmacology, agriculture or other fields (Brzezinska et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Actinomycetes bioactive compounds: Biological control of fungi and phytopathogenic insect

Gomes¹,

Dias²,

Miranda³

2018

Afr. J. Biotechnol.

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Actinomycetes are aerobic and gram-positive spore forming bacteria. They belong to the order actinomycetales and are characterized by substrates and aerial mycelium growth. They are the most abundant microorganisms in soil. They play important roles in the cycling of organic matter and inhibit the growth of several plant pathogens in the rhizosphere. Due to the presence of enzymes such as proteases and chitinase, actinomycetes have been studied as a natural controller of insects and phytopathogenic fungi that cause considerable losses in agriculture. Additionally, the facilities for the industrial manipulation of cultures, and the diversity of metabolites produced make actinomycetes preferred for the control of pests. Furthermore, actinomycetes constitute a "green" alternative for controlling insects and fungi, since they do not contaminate the environment, and are natural members of the soil. They also contribute to the sustainability of soil by formation and stabilization of compost piles, due to their degrading capabilities, and ability to form stable humus. Moreover, they can be associated with other soil microorganisms to degrade recalcitrant residues like celluloses to maintain biotic soil equilibrium.

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Pesticidal prospectives of chitinolytic bacteria in agricultural pest management

Cited by 48 publications

References 186 publications

Modern Technologies for Pest Control: A Review

Modern Technologies for Pest Control: A Review

Microbial metabolomics: essential definitions and the importance of cultivation conditions for utilizing Bacillus species as bionematicides

Actinomycetes bioactive compounds: Biological control of fungi and phytopathogenic insect

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