Safety evaluation of microbial pesticide (HaNPV) based on PCR method

Zhao, Miao; Li, Shufei; Zhou, Qinghong; Zhou, Dianming; He, Ning; Qian, Zhiyong

doi:10.1007/s11705-018-1777-9

Cited by 7 publications

(6 citation statements)

References 19 publications

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“…Three papers (Lacey, 2017;Maciel-Vergara and Ros, 2017;van Oers et al, 2017) were evaluated but did not deal with safety concerns. Zhao et al (2019) reported an in-depth study on the fate and consequences of baculovirus infection by intravenous infection of rats. This is an unusual route for interaction of baculoviruses and vertebrate hosts; normally vertebrates only ingest baculoviruses with food.…”

Section: Baculoviridaementioning

confidence: 99%

See 1 more Smart Citation

Scientific Opinion on the update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA (2017–2019)

Koutsoumanis¹,

Allende²,

Álvarez‐Ordóñez³

et al. 2020

EFS2

243

207

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The qualified presumption of safety (QPS) was developed to provide a safety pre‐assessment within EFSA for microorganisms. Strains belonging to QPS taxonomic units (TUs) still require an assessment based on a specific data package, but QPS status facilitates fast track evaluation. QPS TUs are unambiguously defined biological agents assessed for the body of knowledge, their safety and their end use. Safety concerns are, where possible, to be confirmed at strain or product level, and reflected as ‘qualifications’. Qualifications need to be evaluated at strain level by the respective EFSA units. The lowest QPS TU is the species level for bacteria, yeasts and protists/algae, and the family for viruses. The QPS concept is also applicable to genetically modified microorganisms used for production purposes if the recipient strain qualifies for the QPS status, and if the genetic modification does not indicate a concern. Based on the actual body of knowledge and/or an ambiguous taxonomic position, the following TUs were excluded from the QPS assessment: filamentous fungi, oomycetes, streptomycetes, Enterococcus faecium, Escherichia coli and bacteriophages. The list of QPS‐recommended biological agents was reviewed and updated in the current opinion and therefore now becomes the valid list. For this update, reports on the safety of previously assessed microorganisms, including bacteria, yeasts and viruses (the latter only when used for plant protection purposes) were reviewed, following an Extensive Literature Search strategy. All TUs previously recommended for 2016 QPS list had their status reconfirmed as well as their qualifications. The TUs related to the new notifications received since the 2016 QPS opinion was periodically evaluated for QPS status in the Statements of the BIOHAZ Panel, and the QPS list was also periodically updated. In total, 14 new TUs received a QPS status between 2017 and 2019: three yeasts, eight bacteria and three algae/protists.

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Section: Baculoviridaementioning

confidence: 99%

“…Zhao et al. () reported an in‐depth study on the fate and consequences of baculovirus infection by intravenous infection of rats. This is an unusual route for interaction of baculoviruses and vertebrate hosts; normally vertebrates only ingest baculoviruses with food.…”

Section: Assessmentmentioning

confidence: 99%

Scientific Opinion on the update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA (2017–2019)

Koutsoumanis¹,

Allende²,

Álvarez‐Ordóñez³

et al. 2020

EFS2

243

207

View full text Add to dashboard Cite

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“…There are some limitations to this approach. When encountering an adverse external environment, microorganisms will enter dormancy or spore state and survive well, and the carriers cannot show incompatibility with them [ 87 ].…”

Section: Application Of Adjuvants In Microbial Pesticide Formulationsmentioning

confidence: 99%

Towards Sustainable Green Adjuvants for Microbial Pesticides: Recent Progress, Upcoming Challenges, and Future Perspectives

et al. 2023

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Microbial pesticides can be significantly improved by adjuvants. At present, microbial pesticide formulations are mainly wettable powders and suspension concentrations, which are usually produced with adjuvants such as surfactants, carriers, protective agents, and nutritional adjuvants. Surfactants can improve the tension between liquid pesticides and crop surfaces, resulting in stronger permeability and wettability of the formulations. Carriers are inert components of loaded or diluted pesticides, which can control the release of active components at appropriate times. Protective agents are able to help microorganisms to resist in adverse environments. Nutritional adjuvants are used to provide nutrients for microorganisms in microbial pesticides. Most of the adjuvants used in microbial pesticides still refer to those of chemical pesticides. However, some adjuvants may have harmful effects on non-target organisms and ecological environments. Herein, in order to promote research and improvement of microbial pesticides, the types of microbial pesticide formulations were briefly reviewed, and research progress of adjuvants and their applications in microbial pesticides were highlighted, the challenges and the future perspectives towards sustainable green adjuvants of microbial pesticides were also discussed in this review.

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“…Therefore, biopesticides should be used to improve crop yield because they are more specific to the targets and not prone to producing insecticide resistance when they are compared with chemical pesticides. Microbial pesticides, which are used to control insects, grasses, and diseases, are composed of bacteria, fungi, and viruses, and their metabolites [ 3 ]. Ice-nucleation-active (INA) microbes were discovered in Erwinia , Pseudomonas, and Xanthomonas [ 4 , 5 , 6 ], and they are in most INA bacteria which are normally found growing on plants, with only a few being known to come from frog and insect guts [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…Ice-nucleation-active (INA) microbes were discovered in Erwinia , Pseudomonas, and Xanthomonas [ 4 , 5 , 6 ], and they are in most INA bacteria which are normally found growing on plants, with only a few being known to come from frog and insect guts [ 7 , 8 ]. Some researchers have reported that INA bacteria could control insect pests [ 3 , 6 , 9 ]. INA bacteria could act as effective heterogeneous ice nuclei which can increase an insects’ supercooling point (SCP), lower their hardiness to the cold, and then freeze them to death after a low-temperature treatment.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ice-Nucleation-Active Bacteria on Metabolic Regulation in Evergestis extimalis (Scopoli) (Lepidoptera: Pyralidae) Overwintering Larvae on the Qinghai-Tibet Plateau

Shao

Liu

et al. 2022

Insects

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Evergestis extimalis (Scopoli) is a significant pest of spring oilseed rape in the Qinghai-Tibet Plateau. It has developed resistance to many commonly used insecticides. Therefore, biopesticides should be used to replace the chemical pesticides in pest control. In this study, the effects of ice-nucleation-active (INA) microbes (Pseudomonas syringae 1.7277, P. syringae 1.3200, and Erwinia pyrifoliae 1.3333) on E. extimalis were evaluated. The supercooling points (SCP) were markedly increased due to the INA bacteria application when they were compared to those of the untreated samples. Specifically, the SCP of E. extimalis after its exposure to a high concentration of INA bacteria in February were -10.72℃, -13.73℃, and -14.04℃. Our findings have demonstrated that the trehalase (Tre) genes were up-regulated by the application of the INA bacteria, thereby resulting in an increased trehalase activity. Overall, the INA bacteria could act as effective heterogeneous ice nuclei which could lower the hardiness of E. extimalis to the cold and then freeze them to death in an extremely cold winter. Therefore, the control of insect pests with INA bacteria goes without doubt, in theory.

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Safety evaluation of microbial pesticide (HaNPV) based on PCR method

Cited by 7 publications

References 19 publications

Scientific Opinion on the update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA (2017–2019)

Scientific Opinion on the update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA (2017–2019)

Towards Sustainable Green Adjuvants for Microbial Pesticides: Recent Progress, Upcoming Challenges, and Future Perspectives

The Effect of Ice-Nucleation-Active Bacteria on Metabolic Regulation in Evergestis extimalis (Scopoli) (Lepidoptera: Pyralidae) Overwintering Larvae on the Qinghai-Tibet Plateau

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