A5059835190- Forest Insect Ecology and Management
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Insect Resistance and Genetics
- Chromium effects and bioremediation
- Microbial Natural Products and Biosynthesis
- Insect and Arachnid Ecology and Behavior
- Metal Extraction and Bioleaching
- Physiological and biochemical adaptations
- Plant-Microbe Interactions and Immunity
- Coleoptera Taxonomy and Distribution
- Insect behavior and control techniques
- Plant and animal studies
- Microbial Metabolic Engineering and Bioproduction
- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Insect symbiosis and bacterial influences
- Forest Ecology and Biodiversity Studies
- Cancer Research and Treatments
- Plant Micronutrient Interactions and Effects
- Genomics and Phylogenetic Studies
- GABA and Rice Research
- Nanoplatforms for cancer theranostics
- Cassava research and cyanide
- Neurobiology and Insect Physiology Research
Hunan Institute of Microbiology
2022-2024
Hebei University
2022-2023
Hunan Normal University
2017-2023
Chinese Academy of Sciences
2010-2021
Institute of Zoology
2008-2021
Max Planck Institute for Chemical Ecology
2008-2011
Max Planck Society
2008
People's Liberation Army 401 Hospital
2007
University of Chinese Academy of Sciences
2004
The development, body weight, survivorship, and reproduction of the cotton bollworm, Helicoverpa armigera (Hübner), were evaluated in laboratory at 27°C photoperiod L:D = 14:10 on six host plants: (Gossypium hirsutum L.), corn (Zea mays tomato (Lycopersicon esculentum Mill), hot pepper (Capsicun frutescens tobacco (Nicotiana tobacum common bean (Phaseolus vulgaris L.). Cotton bollworm larvae successfully survived all plants, although mortality was very high tomato. developmental time...
Traditional cancer therapies, such as surgery treatment, radiotherapy, and chemotherapy, often fail to completely eliminate tumor cells in an anaerobic microenvironment of regions. In contrast these traditional the use targeted delivery vectors deliver anticancer genes or antitumor drugs hypoxic areas tumors is most clinically promising treatment with rapid development recent years. this study, E.coli Nissle 1917 (EcN), intestinal probiotic, was utilized a transport vector p53 Tum-5 protein...
Optimality models of host-parasitoid relationships have traditionally assumed that host quality increases as a function size at parasitism. However, trade-offs may play crucial role in species evolution and should be found interactions where the differ between different sizes. Here, we investigated effects differences Monochamus alternatus larva on foraging decisions, parasitism related fitness gregarious ectoparasitoid, Sclerodermus harmandi. Two-choice non-choice experiments were conducted...
Tumor growth and metastasis depend on angiogenesis. Thus, inhibiting tumor angiogenesis has become promising cancer therapeutic strategy in recent years. Tumstatin is a more powerful inhibitor than endostatin. Anti-angiogenic active fragment encoding amino acids 45-132 (Tum-5) of tumstatin was subcloned into four different inducible expression vectors successfully solubly expressed Escherichia coli BL21 (DE3) this study. Subsequently, an anaerobic vector constructed under Vitreoscilla...
Abstract Summer diapause in Helicoverpa assulta (Hübner), which prolongs the pupal stage, particularly males, is induced by high temperatures. In laboratory, 3 rd -, 4 th 6 -instar and prepupal larvae were exposed to temperatures – 33 35 °C with a photoperiod of LD16:8 until pupation induce summer diapause. The results showed that incidence was influenced temperature, stage sex. higher more often attained. Sixth-instar sensitive stages for induction. H. summer-diapausing pupae needed...
Abstract Background Biological invasions are responsible for substantial environmental and economic losses. The red turpentine beetle (RTB), Dendroctonus valens LeConte, is an important invasive bark from North America that has caused tree mortality in China. lack of a high-quality reference genome seriously limits deciphering the extent to which genetic adaptions resulted secondary pest becoming so destructive its invaded area. Results Here, we present 322.41 Mb chromosome-scale RTB, 98%...
Most adult Lepidoptera feed on nectar, whereas caterpillars consume mainly structural tissue such as leaves, stems, flowers, and/or fruits. This may result in behavioral trade-offs which search time for high-quality oviposition sites suitable larval food is restricted by foraging needs. Here we report the preference and performance flowering nonflowering host plants of generalist herbivore Helicoverpa armigera to explore whether there are between moth their offpsring. We found that moths...
Abstract Herbivorous insects exploit multiple plant cues to detect and orient toward suitable hosts and, accordingly, have evolved complex constitutive inducible defenses in response. In China, the red turpentine beetle, D endroctonus valens L e C onte ( oleoptera: urculionidae: S colytinae), an invasive bark beetle from N orth A merica, attacks mainly P inus tabuliformis arrière inaceae), which contains many monoterpenes. this study, we explored how monoterpene α‐pinene affects feeding...
Abstract Background Butenyl-spinosyn, produced by Saccharopolyspora pogona , is a promising biopesticide due to excellent insecticidal activity and broad pesticidal spectrum. Bacterioferritin (Bfr, encoded bfr ) regulates the storage utilization of iron, which essential for growth metabolism microorganisms. However, effect Bfr on butenyl-spinosyn biosynthesis in S. has not been explored. Results Here, we found that intracellular iron influenced stress resistance was regulated Bfr. The...
Several studies suggest that some bark beetle like to attack large trees. The invasive red turpentine (RTB), Dendroctonus valens LeConte, one of the most destructive forest pests in China, is known exhibit this behavior. Our previous study demonstrated RTBs preferred large-diameter trees (diameter at breast height, DBH ≥30 cm) over small-diameter (DBH ≤10 field. In current study, we studied attacking behavior and underlying mechanisms laboratory. Behavioral assays showed large-DBH had a...
Butenyl-spinosyn, a secondary metabolite produced by Saccharopolyspora pogona, exhibits strong insecticidal activity than spinosyn. However, the low synthesis capacity and unknown metabolic characteristics of butenyl-spinosyn in wild-type S. pogona limit its broad application engineering. Here, we showed that exhibited increased glucose consumption ability growth rate compared with spinosa, but production was much lower To further elucidate mechanism these different phenotypes, performed...
Saccharopolyspora pogona is a prominent industrial strain due to its production of butenyl-spinosyn, high-quality insecticide against broad spectrum insect pests. TetR family proteins are diverse in tremendous number microorganisms and some been researched have key role metabolic regulation. However, specific functions S. yet characterize.In the present study, overexpression tetR-like gene sp1418 resulted marked effects on vegetative growth, sporulation, butenyl-spinosyn biosynthesis,...
Butenyl-spinosyn is a highly effective and broad-spectrum biopesticide produced by Saccharopolyspora pogona. However, the yield of this compound difficult to increase because regulatory mechanism secondary metabolism still unknown. Here, transcriptional regulator Sp13016 was discovered be associated with butenyl-spinosyn synthesis bacterial growth. Overexpression sp13016 improved production level that 2.84-fold original strain, while deletion resulted in significant decrease growth...
Journal Article Attacking Behavior and Behavioral Responses to Dust Volatiles from Holes Bored by the Red Turpentine Beetle, Dendroctonus valens (Coleoptera: Scolytidae) Get access Zhudong Liu, Liu State Key Laboratory of Integrated Management Pest Insects Rodents, Institute Zoology, Chinese Academy Sciences, Beijing 100080, China Search for other works this author on: Oxford Academic PubMed Google Scholar Longwa Zhang, Zhang Jianghua Sun 1 1Corresponding author, e-mail: sunjh@ioz.ac.cn....
Many studies have reported the effect of nitrogen (N) fertilization on plant constitutive defense responses; however, little is known about their effects induced patterns and its consequence for insect herbivores. In our experiments, N availability growth, nutritional quality (N content, protein/carbohydrate [P:C] ratio, modified gross energy [MGE]), phenolics corn, Zea mays L. were quantified. Moreover, indirect beet armyworm, Spodoptera exigua Hübner through larval performance feeding...
Butenyl-spinosyn produced by Saccharopolyspora pogona exhibits strong insecticidal activity and a broad pesticidal spectrum. Currently, important functional genes involved in butenyl-spinosyn biosynthesis remain unknown, which leads to difficulty efficient understanding of its regulatory mechanism improving production metabolic engineering. Here, we present data supporting role the SenX3-RegX3 system regulating biosynthesis. EMSAs qRT-PCR demonstrated that RegX3 positively controls an...