Variability of the potency of some selected entomopathogenic bacteria (Bacillus spp. and Serratia spp.) on termites, Macrotermes bellicosus (Isoptera: Termitidae) after exposure to magnetic fields

Omoya, F. O.; Kelly, B.A.

doi:10.1017/s1742758414000253

Cited by 14 publications

(7 citation statements)

References 7 publications

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“…As shown in this study, S. marcescens with its entomopathogenic ability is possibly due to the presence of poly(aniline-co-2,4diaminophenol) ( pADAP) protein in the bacteria [40]. As a response to the release of this bacterial protein, termites expulse the gut contents to the hindgut and release frass pellets [41]. Eventually, this causes the weakening of internal tissues of termite, which may lead to bacterial incursion of the haemocoel, causing septicaemia and death.…”

Section: Resultsmentioning

confidence: 93%

Application strategies by selective medium treated with entomopathogenic bacteria Serratia marcescens and Pseudomonas aeruginosa as potential biocontrol against Coptotermes curvignathus

et al. 2021

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The success of microbial termiticides in controlling termites depends on the ability of microbes to grow in different media and the functionality of the microbes as a resistant barrier or toxic bait. This study was conducted to understand the mortality rate and behaviour changes of the subterranean termite Coptotermes curvignathus Holmgren introduced with different concentrations of Serratia marcescens strain LGMS 1 and Pseudomonas aeruginosa strain LGMS 3 using wood and soil as bacterial transfer medium. In general, higher concentration of bacteria in soil caused a reduction in tunnelling activity and wood consumption and an increase in mortality. However, application on wood revealed a different outcome. Wood treated with S. marcescens of 10 6 CFU ml −1 concentration proved to be more efficient as bait than higher concentration applications as it caused a high mortality rate while still highly palatable for termites. Wood or soil treated with S. marcescens concentration higher than 10 9 CFU ml −1 creates a high toxicity and repellent barrier for termites. Pseudomonas aeruginosa of 10 9 CFU ml −1 concentrations applied on wood served as a slow-acting toxic bait. However, the ability for S. marcescens and P. aeruginosa to survive on wood is low, which made the bait unable to retain a useful level of toxicity for a long period of time and frequent reapplication is needed.

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Section: Resultsmentioning

confidence: 93%

Application strategies by selective medium treated with entomopathogenic bacteria Serratia marcescens and Pseudomonas aeruginosa as potential biocontrol against Coptotermes curvignathus

et al. 2021

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“…As shown in this study, S. marcescens with its entomopathogenic ability is possibly due to the present of pADAP protein in the bacteria [ 30 ]. As response to the release of this bacterial protein, termites expulse the gut contents to the hindgut and release frass pellets [ 31 ]. Eventually, this causes the weakening of internal tissues of termite, which may lead to bacterial incursion of the haemocoel, causing septicaemia and death [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

“…As response to the release of this bacterial protein, termites expulse the gut contents to the hindgut and release frass pellets [31]. Eventually, this causes the weakening of internal tissues of termite, which may lead to bacterial incursion of the haemocoel, causing septicaemia and death [31]. royalsocietypublishing.org/journal/rsos R. Soc.…”

Section: Discussionmentioning

confidence: 99%

Septicaemia of subterranean termites Coptotermes curvignathus caused by disturbance of bacteria isolated from termite gut and its foraging pathways

et al. 2020

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Microbial pathogens continue to attract a great deal of attention to manage the termite population. Every bacterium has its own mode of action and in fact, the mechanisms used by bacteria to attack termites remain elusive at the moment. Hence, the objective of this study was to evaluate the susceptibility of subterranean termites Coptotermes curvignathus to opportunistic pathogens using culturable aerobic bacteria isolated from the termite gut and its foraging pathways. Bacterial suspensions were prepared in concentrations of 10 3 , 10 6 and 10 9 colony-forming units (CFU) ml −1 and introduced to the termites via oral-contact and physical contact treatment. The data show that contact method acted slower and gave lower mortality, compared to the oral-contact method. Coptotermes curvignathus were highly susceptible to Serratia marcescens and Pseudomonas aeruginosa . Serratia marcescens showed the highest mortality percentage of 68% and 54% at bacterial concentration of 10 9 CFU ml −1 via oral-contact and contact method, respectively. Serratia marcescens was also defined as the bacteria with the highest ability to induce the high mortality of C. curvignathus with the lowest concentration of bacterial suspension at a given time under laboratory condition. The results of this study indicate that P. aeruginosa and S. marcescens in particular may be attractive candidates worth further examination as a possible biocontrol agent against C. curvignathus in the field and to evaluate environmental and ecological risks of the biocontrol.

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“…israelensis are very effective pathogens against termites ( Microtermes obesi and Microcerotermes beesoni ) and can cause more than 80% mortality under laboratory conditions (Singha et al ., 2010). Omoya and Kelly (2014) reported that B. subtilis is a very effective pathogen of some species of termite. Natsir and Dali (2014) suggested that B. licheniformis shows good pathogenicity against termites when used as feeding (baits) and spraying.…”

Section: Biological Control Measuresmentioning

confidence: 99%

“…Natsir and Dali (2014) suggested that B. licheniformis shows good pathogenicity against termites when used as feeding (baits) and spraying. Omoya and Kelly (2014) also suggested S. marcescens for the management of termites. Some species of rhizobacteria produce hydrogen cyanide (HCN) that can be used for management of subterranean termites (Devi, 2012; Yadav et al ., 2016).…”

Section: Biological Control Measuresmentioning

confidence: 99%

Termites and Chinese agricultural system: applications and advances in integrated termite management and chemical control

et al. 2019

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Termites are eusocial arthropod decomposers, and improve soil fertility, crop yield, and also are used by humans for their benefits across the world. However, some species of termites are becoming a threat to the farming community as they are directly and indirectly causing major losses to the agricultural system. It is estimated that termites cost the global economy more than 40 billion USD annually, and considerable research has been done on their management. In this review, we present the available information related to sustainable and integrated termite management practices (ITM). Furthermore, we insist that the better management of this menace can be possible through: (i) improving traditional methods to keep termites away from crops; (ii) improving agricultural practices to maintain plants with more vigor and less susceptible to termite attack; and (iii) integration of available techniques to reduce termite infestation in crops and surroundings. The application of an effective combination of traditional practices with recently developed approaches is the best option for agricultural growers. Moreover, keeping in mind the beneficial nature of this pest, more innovative efforts for its management, particularly using rapidly emerging technology (e.g., RNA interference), are needed.

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Variability of the potency of some selected entomopathogenic bacteria (Bacillus spp. and Serratia spp.) on termites, Macrotermes bellicosus (Isoptera: Termitidae) after exposure to magnetic fields

Cited by 14 publications

References 7 publications

Application strategies by selective medium treated with entomopathogenic bacteria Serratia marcescens and Pseudomonas aeruginosa as potential biocontrol against Coptotermes curvignathus

Application strategies by selective medium treated with entomopathogenic bacteria Serratia marcescens and Pseudomonas aeruginosa as potential biocontrol against Coptotermes curvignathus

Septicaemia of subterranean termites Coptotermes curvignathus caused by disturbance of bacteria isolated from termite gut and its foraging pathways

Termites and Chinese agricultural system: applications and advances in integrated termite management and chemical control

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