Assessing the fundamental host-range of Leptinotarsa texana Schaeffer as an essential precursor to biological control risk analysis

Publication date: Available online 23 December 2019Source: Biological ControlAuthor(s): Greg Lefoe, Laurence Haegi, Libby Rumpff, David Gopurenko, Anthony T. Slater, Kym Butler, Cindy E. HauserAbstractThe leaf beetle Leptinotarsa texana Schaeffer (Coleoptera: Chrysomelidae) was introduced to South Africa from the USA to control silverleaf nightshade Solanum elaeagnifolium Cav. (Solanales: Solanaceae). Subsequent post-release studies in South Africa found the beetle to be an effective, host-specific biocontrol agent of S. elaeagnifolium. Leptinotarsa texana has potential for biological control of S. elaeagnifolium in other countries where the weed adversely impacts agricultural production, including Australia. However, L. texana can only be introduced to Australia if risk analysis demonstrates that the agent poses a negligible or very low risk to the environment and economy. We initiated an assessment of the agent’s possible impact in Australia by prioritising non-target species, and conducting quarantine laboratory experiments on 49 Australian native species and economically important plant species and cultivars. We observed feeding damage greater than 50% leaf area removed on plants of 12 Australian Solanum spp. and two crop species (potato Solanum tuberosum L. and eggplant Solanum melongena L.). Leptinotarsa texana successfully developed from first instar larva to adult on 15 Australian Solanum spp. and two crop species (a single eggplant cultivar and f...
Source: Biological Control - Category: Biology Source Type: research

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Authors: Monferrer-Adsuara C, Freiría-Barreiro R, Montero Hernández J PMID: 32063419 [PubMed - as supplied by publisher]
Source: Archivos de la Sociedad Espanola de Oftalmologia - Category: Opthalmology Tags: Arch Soc Esp Oftalmol Source Type: research
CONCLUSION: The adult strabismus surgery was three times more frequent than the children strabismus surgery. The third of the adults that were operated on were ≥60 years. The cranial nerve palsies were the most frequent diagnosis. Adjustable sutures were rarely used. Good outcomes were obtained in most of the patients at the end of follow-up. PMID: 32063418 [PubMed - as supplied by publisher]
Source: Archivos de la Sociedad Espanola de Oftalmologia - Category: Opthalmology Tags: Arch Soc Esp Oftalmol Source Type: research
In conclusion, soil metabolomics offers the potential to reveal the complex molecular networks and metabolic pathways operating in the soil microbial community and a means of evaluating soil function. Further work is now required to benchmark soil metabolomes under a wide range of management regimes so that they can be used for the quantitative assessment of soil quality.Graphical abstract
Source: Soil Biology and Biochemistry - Category: Biology Source Type: research
Publication date: Available online 17 February 2020Source: Saudi Journal of Biological SciencesAuthor(s): Masoumeh Rezaei-Moshaei, Ali Bandehagh, Ali Dehestani, Ali Pakdin-Parizi, Majid GolkarAbstractPlant ribosome–inactivating proteins (RIPs) are N–glycosidases which inhibit protein synthesis through depurination of the ribosomal RNA sequence. Type II RIPs are heterodimer proteins which can bind to cell surfaces. The cytotoxicity of these RIPs is different. Sambucus spp. are a rich source of RIP proteins with different properties. In the present study, a type II RIP was isolated from S. ebulus plant that grows...
Source: Saudi Journal of Biological Sciences - Category: Biology Source Type: research
Publication date: Available online 17 February 2020Source: Journal of Thermal BiologyAuthor(s): Chao Wen, Ying Liu, Yuanwei Ye, Zhengguo Tao, Zongjia Cheng, Tian Wang, Yanmin ZhouAbstractIn order to investigate the effects of dietary ginger extract (GE) enriched in gingerols on broilers under heat stress (HS) from 21 to 42 days of age, a total of 144 Ross 308 male broilers were randomly allocated to three groups with six replicates of eight broilers per replicate. Broilers in the control group were raised at 22 °C and fed a basal diet, and broilers in the other two groups were raised under cyclic HS (34 °C from...
Source: Journal of Thermal Biology - Category: Biology Source Type: research
This study aims to observe the effect on urine and sweat excretion levels of cadmium (Cd) and lead (Pb) in healthy men in a maximum incremental test until exhaustion and repeated exposure to heat.Methodstwenty-nine adult men divided into control group (CG; n = 14) and experimental group (EG; n = 15) performing two maximum tests until exhaustion in normothermia (22 °C) and hyperthermia (42 °C). EG experienced 9 sessions of heat exposure at high temperatures (100 °C) (HEHT). After the nine sessions, the initial tests were repeated in both groups. Urine samples were collected before and after each te...
Source: Journal of Thermal Biology - Category: Biology Source Type: research
In this study, we have analysed the application of the same method to predict superfamilies. Here, in this method, the twilight zone protein sequence is threaded with the 3D1D profiles of the known protein superfamilies library. In addition, weightage for the predicted secondary structure (PSS) is also employed. The performance of the method is benchmarked with twilight zone sequences. In the benchmarks, 62 and 65 percentages of superfamily predictions are obtained with GOR IV and NPS@ predicted secondary structures, respectively. Receiver Operating Characteristic (ROC) curves indicate that the method is sensitive in predi...
Source: Journal of Structural Biology - Category: Biology Source Type: research
In conclusion, our results suggested that AjPGRP-S serves as a pattern recognition molecule involved in the immune response towards various pathogenic infections.
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research
In this study, whole-body transcriptome sequencing of juvenile betta fish generated 4.457 GB of clean data and a total of 71,775 unigenes using the Illumina HiSeq4000 platform. These unigenes were functionally classified using 7 functional databases, yielding 45,316 NR (63.14%), 47,287 NT (65.88%), 39,105 Swiss-Prot (54.48%), 16,492 COG (22.98%), 37,694 KEGG (52.52%), 4,506 GO (6.28%), and 35,374 Interpro (49.28%) annotated unigenes. Furthermore, we also detected 13,834 SSRs distributed on 10,636 unigenes and 49,589 predicted CDSs. Based on KEGG analysis, five innate immune pathways (997 unigenes) were reported, includin...
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research
The White House released the President’s Budget Request for fiscal year (FY) 2021 on February 10, 2020. The budget proposes large cuts for science for the fourth consecutive year. The $4.8 trillion budget framework calls for cuts to most federal agencies, including the National Science Foundation (NSF), the National Institutes of Health (NIH), the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), and the Environmental Protection Agency (EPA). The proposal would provide $1.3 trillion for discretionary programs, including $590 billion for non-defense spending - the source for m...
Source: Public Policy Reports - Category: Biology Authors: Source Type: news
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