Publications by authors named "Songqing Wu"

The biological characteristics of Swinhoe (Lepidoptera: Erebidae), a moth that threatens coastal forests in Fuzhou, China, are closely linked to its spread risk. To characterize these traits, we primarily investigated emergence, reproductive, and flight behaviors. Our findings show that females typically emerge, mate, and copulate during specific times of day.

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Article Synopsis
  • The Japanese pine sawyer beetle is the main carrier of pine wilt disease, which endangers forestry in Eurasia, and current monitoring relies on traps with informational compounds.
  • This study focuses on the gene expression patterns related to chemosensation, analyzing different genes during the feeding and mating stages of both male and female beetles.
  • Key findings include that various gene families (GR, OBP, OR, CSP, SNMP, IR) show distinct expression patterns, particularly in mouthparts and antennae, highlighting specific genes involved in their chemosensory functions.
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The continuous use of chemical pesticides to control nematodes could result in the developing of pesticide-resistant nematodes. Novel nucleic acid pesticides are becoming the focus of pesticide research due to their strong specificity, high efficiency, and environmental friendliness. However, the limited known biochemical targets restrict the development of target pesticides for nematodes.

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Knottin-type antimicrobial peptides possess exceptional attributes, such as high efficacy, low vulnerability to drug resistance, minimal toxicity, and precise targeting of drug sites. These peptides play a crucial role in the innate immunity of insects, offering protection against bacteria, fungi, and parasites. Knottins have garnered considerable interest as promising contenders for drug development due to their ability to bridge the gap between small molecules and protein-based biopharmaceuticals, effectively addressing the therapeutic limitations of both modalities.

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severely impacts on the health of banyan trees. In this study, the whole mitochondrial genome for was found to be 16,158 bp with a GC content of 23.9%, including 39.

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Overcoming the innate immunity of insects is a key process to improve the efficiency of biological control. Antimicrobial peptides (AMPs) are important effectors in insect innate immunity, usually mediating resistance to pathogenic microorganisms through Toll and IMD signaling pathways. This study investigated the effect of key genes on upstream immune recognition receptor (GNBP) and downstream effectors (AMPs) by RNAi technology.

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Pine wilt disease is a devastating disease of pine caused by the pine wood nematode (PWN) Bursaphelenchus xylophilus. Long-term use of chemical nematicides leads to the development of resistance in nematodes and harms the environment. Evaluations for green environmental protection agents, identified the antibacterial peptide, MaltDef1, from Monochamus alternatus which had nematicidal effect.

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is a quarantine pest that mainly damages plants in tropical regions, which are essential economic resources. Cry3Aa has been used to control coleopteran pests and is known to be toxic to . The binding of the Cry toxin to specific receptors on the target insect plays a crucial role in the toxicological mechanism of Cry toxins.

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Insects have evolved to form a variety of complex natural compounds to prevent pathogen infection in the process of a long-term attack and defense game with various pathogens in nature. Antimicrobial Peptides (AMPs) are important effector molecules of the insect immune response to the pathogen invasion involved in bacteria, fungi, viruses and nematodes. The discovery and creation of new nematicides from these natural compounds is a key path to pest control.

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Background: Pine wilt disease (PWD) is a destructive disease of pine trees caused by the pinewood nematode, Bursaphelenchus xylophilus. Fluopyram, a novel nematicide compound with systemic activity, is a prospective trunk-injection agent against pinewood nematodes. The disadvantage of current trunk-injection agents is that they were not evenly distributed in tree tissues and were poor in the persistence of effect and efficiency.

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is a pest which spreads in China, Laos, Japan and some other countries in Asia. The complete mitochondrial genome of is 15,854 bp in length with 32.1% GC content, including 38.

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Thomson, 1877 (Coleoptera: Cerambycidae) is the trunk borer of orange trees. In this study, we sequenced and annotated the whole mitochondrial genome of . The results showed that the length of the complete mitochondrial genome is 15,854 bp with an overall GC content of 32.

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Background: Diapause allows insects to survive harsh environments, and its termination is crucial for their normal development after diapause. However, little is known about the regulatory pathways and signals involved in insect diapause termination.

Results: We discovered that high temperature (25 °C) influenced larval diapause termination in Monochamus alternatus.

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Schaufuss, 1879 (Coleoptera: Buprestidae) is a common pine pest in Chongqing, Fujian, Yunnan, and other in China. The mitochondrial genome of is 15,759 bp in size. The genome includes 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), and two ribosomal RNA genes (rRNAs).

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The pine wilt disease is caused by the pinewood nematode Bursaphelenchus xylophilus and it results in serious ecological and economic losses. Therefore, effective prevention and control methods for the pinewood nematode are urgently required. Bacillus thuringiensis (Bt), a widely used microbial insecticide, produces toxins that are toxic to several species of parasitic nematodes, however, its effects on B.

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MacLeay is a predatory enemy prey heavily on agricultural pests. The length of the complete mitochondrial genome of was 16,800 bp with 20.4% GC content, including 41.

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The red palm weevil (RPW), Rhynchophorus ferrugineus (Oliver) is an important pest of palms that causes significant damage by boring into and feeding within palm stem tissues. Here, we studied the proteolytic process of Cry3Aa in the RPW to understand the mechanism of Cry toxicity. The bioassays showed that Cry3Aa toxin is weakly toxic to the RPW.

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The gut microbiota of insects has a wide range of effects on host nutrition, physiology, and behavior. The structure of gut microbiota may also be shaped by their environment, causing them to adjust to their hosts; thus, the objective of this study was to examine variations in the morphological traits and gut microbiota of in response to natural and artificial diets using high-throughput sequencing. Regarding morphology, the head widths for larvae fed on a sterilized artificial diet were smaller than for larvae fed on a non-sterilized host-plant diet in the early instars.

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Deyrolle, 1875 is a beetle of the Trictenotomidae family. The length of the complete mitochondria genome of was 15,910 bp with 24.1% GC content, including 39.

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Pascoe is a mulberry borer that threatens the health of the plant. This study revealed the length of the complete mitochondrial genome of which consists of 15,552 bp length with 39.8% A, 12.

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The insecticidal Cry4Ba and Cry11Aa crystal proteins from subsp. (Bti) are highly toxic to larvae. The glycosylphosphatidylinositol (GPI)-anchored APN was identified as an important membrane-bound receptor for multiple Cry toxins in numerous Lepidoptera, Coleoptera, and Diptera insects.

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Chapuis, 1875 (Coleoptera: Scolytinae) is a major boring pest of Chinese firs. The length of the complete mitochondria genome of was 17,054 bp with 29.7% GC content, including 30.

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In this study, the complete mitochondrial genome of was first sequenced. The length of the complete mitochondria genome of was 15,760 bp with 19.0% GC content, including 40.

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is the main pine-hole borer of Pinus. The length of the complete mitochondria genome of was 17,120 bp with 33.6% GC content, there were 35 genes including 13 protein-coding genes (CDS), 20 transfer RNA genes (tRNAs), and two ribosomal RNA genes (rRNAs).

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MYB transcription factors have a wide range of functions in plant growth, hormone signaling, salt, and drought tolerances. In this study, two homologous transcription factors, and were isolated and their functions were elucidated. Tissue expression analysis revealed that and had a similar expression pattern, which had the highest expression in stems.

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