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- Author:
- Shwe, Su Mon; Wang, Yueqin; Gao, Zupeng; Li, Xue; Liu, Shen; Bai, Shuxiong; Zhang, Tiantao; He, Kanglai; Wang, Zhenying
- Source:
- Journal of invertebrate pathology 2021 v.178 pp. 107507
- ISSN:
- 0022-2011
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Conogethes punctiferalis; antagonism; bacterial proteins; bioassays; corn; diet; insecticidal properties; lethal concentration 50; pests; resistance management; synergism; toxicity; transgenic plants; China; Show all 16 Subjects
- Abstract:
- ... Transgenic plants expressing insecticidal proteins from the Bacillus thuringiensis (Bt) have provided an effective way to control target pests. However, the toxicity of Bt proteins against yellow peach moth (YPM), Conogethes punctiferalis (Guenée), one of the most serious maize pests in China, has not received much study. Therefore, we performed diet-overlay bioassays to evaluate the insecticidal ...
- DOI:
- 10.1016/j.jip.2020.107507
-
https://dx.doi.org/10.1016/j.jip.2020.107507
- Author:
- Romeis, Jörg; Meissle, Michael
- Source:
- Trends in biotechnology 2020 v.38 no.3 pp. 234-236
- ISSN:
- 0167-7799
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; arthropods; bacterial proteins; biodiversity; crops; genetic engineering; nontarget organisms; risk; Show all 9 Subjects
- Abstract:
- ... Concerns have been raised that multiple insecticidal proteins produced by genetically engineered (GE) crops may interact unexpectedly and pose new threats to biodiversity and nontarget organisms. We reviewed the literature to assess whether this concern is justified and whether the current regulatory framework needs to be adapted to address this concern. ...
- DOI:
- 10.1016/j.tibtech.2019.12.001
-
https://dx.doi.org/10.1016/j.tibtech.2019.12.001
- Author:
- Girón-Calva, Patricia S.; Twyman, Richard M.; Albajes, Ramon; Gatehouse, Angharad M.R.; Christou, Paul
- Source:
- Trends in plant science 2020 v.25 no.3 pp. 264-278
- ISSN:
- 1360-1385
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; climatic factors; crops; insect control; insect pests; mortality; prediction; protein content; transgenic plants; Show all 10 Subjects
- Abstract:
- ... Bt crops have been grown commercially for more than two decades. They have proven remarkably effective in the control of target insect pests. However, Bt crops can become less effective under various forms of environmental stress. Most studies in this area have considered the effect of environmental stress on Bt insecticidal protein levels or target pest mortality, but not both, resulting in a lac ...
- DOI:
- 10.1016/j.tplants.2019.12.019
-
https://dx.doi.org/10.1016/j.tplants.2019.12.019
- Author:
- Andrés-Garrido, Ascensión; González-Martínez, Rosa M.; Ramos, Silvia; Escriche, Baltasar
- Source:
- Biocontrol science and technology 2020 v.30 no.9 pp. 941-950
- ISSN:
- 1360-0478
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Grapholita molesta; Spodoptera exigua; Tenebrio molitor; bioassays; cadherins; crystal proteins; dose response; entomopathogenic bacteria; insect control; insect pests; receptors; synergism; toxicity; toxins; Show all 16 Subjects
- Abstract:
- ... Bacillus thuringiensis Berliner 1915 (Bt) is an entomopathogenic bacterium used to control insect pest worldwide. During its life cycle, Bt produces different insecticidal proteins, among which Vegetative Insecticidal Proteins (Vip) and Crystal proteins (Cry) are the most commercially used. Although large number of Bt toxins have been reported, only few of them (such as Cry1Ca and Vip3Aa) showed t ...
- DOI:
- 10.1080/09583157.2020.1772960
-
http://dx.doi.org/10.1080/09583157.2020.1772960
- Author:
- de Souza, Michael Willian Rocha; Ferreira, Evander Alves; dos Santos, José Barbosa; Soares, Marcus Alvarenga; de Castro e Castro, Bárbara Monteiro; Zanuncio, José Cola
- Source:
- Phytoparasitica 2020 v.48 no.4 pp. 567-573
- ISSN:
- 0334-2123
- Subject:
- insecticidal proteins, etc ; Spodoptera frugiperda; Zea mays; atrazine; chlorophyll; corn; crystal proteins; electron transfer; electrons; fluorescence; genotype; herbicide application; insect pests; leaves; nicosulfuron; transgenic plants; Show all 16 Subjects
- Abstract:
- ... Physiological changes in maize plants, submitted to herbicides and pests, should be studied for integrated management in this crop. The objective was to evaluate the chlorophyll a fluorescence in maize genotypes damaged or not by Spodoptera frugiperda, and sprayed with herbicides. The herbicides atrazine and nicosulfuron were applied to the plants at doses of 3 kg ha⁻ ¹ and 0.06 kg ha⁻ ¹, respecti ...
- DOI:
- 10.1007/s12600-020-00816-5
-
http://dx.doi.org/10.1007/s12600-020-00816-5
- Author:
- Banyuls, Núria; Quan, Yudong; González-Martínez, Rosa María; Hernández-Martínez, Patricia; Ferré, Juan
- Source:
- Journal of invertebrate pathology 2020 pp. 107439
- ISSN:
- 0022-2011
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Grapholita molesta; Spodoptera frugiperda; Spodoptera littoralis; active ingredients; agrochemicals; amino acids; insect larvae; insect pests; insecticidal properties; mutants; site-directed mutagenesis; toxicity; toxins; trypsin; Show all 16 Subjects
- Abstract:
- ... Modern agriculture demands for more sustainable agrochemicals to reduce the environmental and health impact. The whole process of the discovery and development of new active substances or control agents is sorely slow and expensive. Vegetative insecticidal proteins (Vip3) from Bacillus thuringiensis are specific toxins against caterpillars with a potential capacity to broaden the range of target p ...
- DOI:
- 10.1016/j.jip.2020.107439
-
https://dx.doi.org/10.1016/j.jip.2020.107439
- Author:
- Quesada, Carlos R.; Scharf, Michael E.; Sadof, Clifford S.
- Source:
- Chemosphere 2020 v.249 pp. 126167
- ISSN:
- 0045-6535
- Subject:
- insecticidal proteins, etc ; Pinus; Toumeyella pini; application rate; bioaccumulation; excretion; fruit growing; honeydew; host plants; imidacloprid; leaves; liquid chromatography; mass spectrometry; parasitoids; predators; soil; soil treatment; Show all 17 Subjects
- Abstract:
- ... Honeydew production is a characteristic of soft scales and other hemipteran insects. Honeydew has the capacity to alter the ecology of predators and parasitoids because it is used as a food resource and can contain insecticidal proteins from hemipteran host plants. We examined honeydew excreted by the striped pine scale (Hemiptera: Coccidae), Toumeyella pini (King), after feeding on pine trees tre ...
- DOI:
- 10.1016/j.chemosphere.2020.126167
-
https://dx.doi.org/10.1016/j.chemosphere.2020.126167
- Author:
- Zhou, H.; Hu, W.; Huang, Q.; Abouzaid, M.; Jin, H.; Sun, Y.; Qiu, L.; Zhang, W.; Lin, Y.; Ma, W.
- Source:
- Insect molecular biology 2020 v.29 no.3 pp. 301-308
- ISSN:
- 0962-1075
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Chilo suppressalis; Oryza sativa; biopesticides; cadherins; crystal proteins; double-stranded RNA; genes; insect larvae; midgut; mortality; pests; rice; toxicity; toxins; transgenic plants; Asia; Show all 18 Subjects
- Abstract:
- ... The striped rice stem borer, Chilo suppressalis Walker, is one of the most destructive rice pests in Asia. Insecticidal crystal proteins (Cry toxins) produced by Bacillus thuringiensis are widely used as biopesticides or in developing transgenic crops for pest management. In this study, we tested the involvement of two newly cloned C. suppressalis cadherins (CsCAD3 and CsCAD4) in the toxicity of C ...
- DOI:
- 10.1111/imb.12634
-
http://dx.doi.org/10.1111/imb.12634
- Author:
- Song, Yingying; Liu, Ruiying; Wang, Mengfei; Liu, Manqiang; Liu, Xianghui; Ge, Feng; Chen, Fajun
- Source:
- Archiv für Acker- und Pflanzenbau und Bodenkunde 2020 v.66 no.5 pp. 586-599
- ISSN:
- 1476-3567
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Oryza sativa; bacterial proteins; breeding; crop production; crystal proteins; environmental impact; mites; population dynamics; rice; risk assessment; soil; species abundance; transgenes; transgenic plants; Show all 16 Subjects
- Abstract:
- ... Risk assessment and ecological effects are a concern of transgenic rice. In this study, the effects of three lines of Bt rice expressing single Cry1Ab protein (Kemingdao: cv. KMD) and fused Cry1Ab/Cry1Ac proteins (Huahui 1: cv. HH1; Bt Shanyou 63: cv. Bt-SY63) on soil mite community were investigated under field conditions. Transgenic treatment (cv. Bt-rice vs. non-Bt rice) significantly decreased ...
- DOI:
- 10.1080/03650340.2019.1628345
-
https://dx.doi.org/10.1080/03650340.2019.1628345
- Author:
- Zheng, Cao; Yu, Zhaoqing; Du, Cuiying; Gong, Yujing; Yin, Wen; Li, Xinfeng; Li, Zhou; Römling, Ute; Chou, Shan‐Ho; He, Jin
- Source:
- Environmental microbiology 2020 v.22 no.3 pp. 1125-1140
- ISSN:
- 1462-2912
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; biochemical pathways; biological control; biopesticides; carbon; crystal proteins; endospores; enzymes; metabolites; mutants; operon; sporulation; transcription (genetics); transcription factors; Show all 15 Subjects
- Abstract:
- ... Bacillus thuringiensis is the most widely used eco‐friendly biopesticide, containing two primary determinants of biocontrol, endospore and insecticidal crystal proteins (ICPs). The 2‐methylcitrate cycle is a widespread carbon metabolic pathway playing a crucial role in channelling propionyl‐CoA, but with poorly understood metabolic regulatory mechanisms. Here, we dissect the transcriptional regula ...
- DOI:
- 10.1111/1462-2920.14901
-
http://dx.doi.org/10.1111/1462-2920.14901
- Author:
- Visser, Andri; Du Plessis, Hannalene; Erasmus, Annemie; Van den Berg, Johnnie
- Source:
- Insects 2020 v.11 no.2
- ISSN:
- 2075-4450
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Busseola fusca; Zea mays; avoidance behavior; corn; crystal proteins; insect resistance; leaves; neonates; pests; resistance management; toxins; transgenic plants; Africa; Show all 15 Subjects
- Abstract:
- ... Busseola fusca (Fuller; Lepidoptera: Noctuidae) is an important pest of maize in Africa and can be effectively controlled by Bt maize. However, the sustainability of this technology is threatened by resistance evolution, which necessitates the implementation of the high-dose/refuge insect resistance management (IRM) strategy. Despite the success of this IRM strategy, it is based on several ...
- DOI:
- 10.3390/insects11020077
-
http://dx.doi.org/10.3390/insects11020077
- Author:
- Wang, Kui; Shu, Changlong; Zhang, Jie
- Source:
- Archives of insect biochemistry and physiology 2019 v.102 no.3 pp. e21558
- ISSN:
- 0739-4462
- Subject:
- insecticidal proteins, etc ; Coleoptera; bacteria; biological control; coprophagy; insect control; insect pests; Show all 7 Subjects
- Abstract:
- ... Coleoptera, the order of insects commonly referred to as beetles, are able to survive in various environments, and thus, comprise the largest order in the animal kingdom. Coleopterans mainly include coprophagous and phytophagous lineages, and many species of the latter lineage are serious pests. In addition to traditional chemical methods, biocontrol measures using various bacterial insecticidal p ...
- DOI:
- 10.1002/arch.21558
-
http://dx.doi.org/10.1002/arch.21558
- Author:
- Wang, Songwei; Cui, Jiajia; Bilal, Muhammad; Hu, Hongbo; Wang, Wei; Zhang, Xuehong
- Source:
- Critical reviews in biotechnology 2020 v.40 no.8 pp. 1232-1249
- ISSN:
- 1549-7801
- Subject:
- insecticidal proteins, etc ; Pseudomonas; bioactive compounds; biopharmaceuticals; biosynthesis; biotechnology; carbon; design; environment; factories; feedstocks; industrial applications; metabolic engineering; phenazines; polyhydroxyalkanoates; renewable resources; rhamnolipids; secondary metabolites; strains; value added; value-added products; yields; Show all 22 Subjects
- Abstract:
- ... In recent years, there has been increasing interest in microbial biotechnology for the production of value-added compounds from renewable resources. Pseudomonas species have been proposed as a suitable workhorse for high-value secondary metabolite production because of their unique characteristics for fast growth on sustainable carbon sources, a clear inherited background, versatile intrinsic meta ...
- DOI:
- 10.1080/07388551.2020.1809990
-
http://dx.doi.org/10.1080/07388551.2020.1809990
- Author:
- Moscardini, Valéria F.; Marques, Luiz H.; Santos, Antônio C.; Rossetto, Jaédino; Silva, Oscar A.B.N.; Rampazzo, Pedro E.; Castro, Boris A.
- Source:
- Crop protection 2020 v.137 pp. 105269
- ISSN:
- 0261-2194
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Spodoptera frugiperda; Zea mays; corn; crop production; crops; crystal proteins; cutting; growers; hybrids; insect control; insect resistance; integrated pest management; planting; resistance management; seedlings; transgenic plants; Brazil; Show all 19 Subjects
- Abstract:
- ... Recommendations to manage the impact of Spodoptera frugiperda (Lepidoptera: Noctuidae) to maize production include the use of Bt crops where approved, combined with the adoption of integrated pest management (IPM) and insect resistance management (IRM) practices. This study evaluated the efficacy of Bt maize expressing proteins Cry1F + Cry 1A.105 + Cry2Ab2 + Vip3Aa20 to control S. frugiperda under ...
- DOI:
- 10.1016/j.cropro.2020.105269
-
https://dx.doi.org/10.1016/j.cropro.2020.105269
- Author:
- Muralimohan, N.; Saini, Ravi Prakash; Kesiraju, Karthik; Pattanayak, Debasis; Ananda Kumar, P.; Kasturi, K.; Sreevathsa, Rohini
- Source:
- Journal of plant biochemistry and biotechnology 2020 v.29 no.3 pp. 518-527
- ISSN:
- 0971-7811
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Helicoverpa armigera; administrative management; area; bioassays; biotechnology; codon usage; host plants; insecticidal properties; insects; leaves; mortality; pests; plant biochemistry; protein synthesis; tobacco; toxins; transgenic plants; Show all 19 Subjects
- Abstract:
- ... Concurrent expression of multiple insecticidal toxins as pyramided genes in the same host plant is one of the tangible strategies to delay the development of resistance in insects. In this study, an ideal combination of Insecticidal Cry Proteins (ICP) of Bacillus thuringiensis (Bt) viz., chimeric Cry1AcF (produced by domain swapping) and Cry2Aa (a synthetic protein with modified codon usage for pl ...
- DOI:
- 10.1007/s13562-020-00569-6
-
http://dx.doi.org/10.1007/s13562-020-00569-6
- Author:
- Prabu, Sivaprasath; Jing, Dapeng; Shabbir, Muhammad Zeeshan; Yuan, Weining; Wang, Zhenying; He, Kanglai
- Source:
- International journal of biological macromolecules 2020 v.153 pp. 88-99
- ISSN:
- 0141-8130
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Ostrinia furnacalis; arthropods; beta-glucans; enzyme activation; gene expression; genes; hemocytes; insecticide resistance; melanin; melanization; microbiome; midgut; monophenol monooxygenase; phagocytosis; prophenoloxidase; protein-protein interactions; quantitative polymerase chain reaction; serine proteinases; Show all 20 Subjects
- Abstract:
- ... Phenoloxidase (PO) is a crucial enzyme in the Arthropods melanization process, in which synthesized melanin rapidly acts at the site of injury and infection. In this study, we observed significant changes in humoral and cellular responses after exposing susceptible and resistant strains to a sub-lethal concentration of Cry1Ah toxin. Based on STRING v 11.0 computational protein-protein interaction ...
- DOI:
- 10.1016/j.ijbiomac.2020.03.003
-
https://dx.doi.org/10.1016/j.ijbiomac.2020.03.003
- Author:
- Ramkumar, Nikhil; Rathinam, Maniraj; Singh, Shweta; Kesiraju, Karthik; Muniyandi, Vikraman; Singh, Nagendra Kumar; Dash, Prasanta K; Sreevathsa, Rohini
- Source:
- Pest management science 2020 v.76 no.5 pp. 1902-1911
- ISSN:
- 1526-498X
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Cajanus cajan; Helicoverpa armigera; breeding; crop production; crystal proteins; genes; germplasm; herbivores; insect control; insect larvae; insect pests; mineral fertilizers; pigeon peas; soil; transfer DNA; transgenic plants; Show all 18 Subjects
- Abstract:
- ... BACKGROUND: Pigeonpea is a source of quality proteins and the main constituent of a well‐balanced diet for majority of Indian population. One of the major constraints in the production of pigeonpea is a polyphagous insect pest, Helicoverpa armigera. Non‐availability of resistant sources in the germplasm and limitations in conventional breeding have been key factors for continued yield losses. Addi ...
- DOI:
- 10.1002/ps.5722
-
http://dx.doi.org/10.1002/ps.5722
- Author:
- Chakrabarty, Swapan; Jin, Minghui; Wu, Chao; Chakraborty, Panchali; Xiao, Yutao
- Source:
- Pest management science 2020 v.76 no.5 pp. 1612-1617
- ISSN:
- 1526-498X
- Subject:
- insecticidal proteins, etc ; Bacillus thuringiensis; Lepidoptera; binding sites; crops; cross resistance; crystal proteins; insect control; insect pests; insect resistance; insecticidal properties; mechanism of action; midgut; phylogeny; receptors; sequence alignment; transgenic plants; Show all 17 Subjects
- Abstract:
- ... Vip3A proteins are widely used for controlling pest Lepidoptera. Different binding sites with different receptors in the insect midgut membrane and lack of cross‐resistance with crystal (Cry) proteins enhance their applicability, as both single proteins and proteins pyramided with Cry proteins in transgenic Bt crops. Vip3A proteins are effective but there is relatively little information about the ...
- DOI:
- 10.1002/ps.5804
-
http://dx.doi.org/10.1002/ps.5804
- Author:
- Ngugi-Dawit, Abigail; Hoang, Thi My Linh; Williams, Brett; Higgins, Thomas J.V.; Mundree, Sagadevan G.
- Source:
- Agronomy 2020 v.10 no.4
- ISSN:
- 2073-4395
- Subject:
- insecticidal proteins, etc ; Cajanus cajan; Cajanus scarabaeoides; Helicoverpa armigera; antibiosis; antixenosis; artificial diets; bioassays; cultivars; cysteine proteinase inhibitors; enzymes; financial economics; freeze drying; insect larvae; insect resistance; interspecific hybridization; larval development; leaves; lectins; pigeon peas; proteomics; rearing; tropics; Show all 23 Subjects
- Abstract:
- ... Cajanus scarabaeoides (L.), Thouars, is the closest wild crop relative of cultivated pigeonpea, Cajanus cajan (L.), Millspaugh. This wild pigeonpea has several insect-resistance mechanisms, particularly to Helicoverpa armigera (Hübner). Estimated economic losses in the semi-arid tropics from H. armigera damage in pigeonpea are approximately two billion USD/year. Therefore, it is imperative to impr ...
- DOI:
- 10.3390/agronomy10040517
-
https://dx.doi.org/10.3390/agronomy10040517
- Author:
- NanGong, Ziyan; Guo, Xiaoxiao; Yang, Qing; Song, Ping; Wang, Qinying; Parajulee, Megha N.
- Source:
- World journal of microbiology & biotechnology 2020 v.36 no.4 pp. 56
- ISSN:
- 0959-3993
- Subject:
- insecticidal proteins, etc ; Galleria mellonella; Helicoverpa armigera; Photorhabdus luminescens; Spodoptera exigua; Xenorhabdus nematophila; genes; hemocoel; insecticidal properties; larvae; lethal dose 50; liquid chromatography; protein domains; tandem mass spectrometry; two hybrid system techniques; Show all 15 Subjects
- Abstract:
- ... PirAB toxin was initially found in the Photorhabdus luminescens TT01 strain and is a demonstrated binary toxin with high insecticidal activity. In this paper, we co-expressed the pirAB gene of Xenorhabdus nematophila HB310 in a prokaryotic expression system, and we found that the PirAB protein showed high hemocoel insecticidal activity against Galleria mellonella, Helicoverpa armigera and Spodopte ...
- DOI:
- 10.1007/s11274-020-02833-2
-
https://dx.doi.org/10.1007/s11274-020-02833-2
