Quantitative transcriptomic and proteomic analyses reveal the potential maintenance mechanism of female adult reproductive diapause in Chrysoperla nipponensis.

Background: The green lacewing Chrysoperla nipponensis is an important natural enemy of many insect pests and exhibits reproductive diapause to overwinter. Our previous studies showed that adult C. nipponensis enters reproductive diapause under a short-day photoperiod.

Facultative Endosymbiont Serratia symbiotica Inhibits the Apterization of Pea Aphid To Enhance Its Spread.

Aphids display wing polyphenism, and the mother can produce a wingless morph for reproduction and a winged morph for dispersal. It is believed that the wingless morph is an adaptive status under favorable conditions and is determined prenatally. In this study, we have found that winged nymphs of the pea aphid, Acyrthosiphon pisum, can change from winged to wingless during normal development.

The Influence of Host Aphids on the Performance of .

The aphid parasitoid Walker is an important biological control agent against many aphid species. In this study, we examined whether the rearing host aphid species (the pea aphid, and the grain aphid, ) affect the performance of . We found that -reared showed a significantly larger body size (body length and hind tibia length) and shorter developmental time than -reared .

Identification and Characterization of Antioxidant Enzyme Genes in Parasitoid (Hymenoptera: Aphelinidae) and Expression Profiling Analysis under Temperature Stress.

It is well known that high temperature, a typically negative environmental factor, reduces the parasitism of a parasitoid. Generally, high temperature causes the rapid overproduction of reactive oxygen species (ROS) in organisms, and antioxidative enzymes participate in the process of resisting environmental stress by eliminating excess ROS. In the present study, we identify two superoxide dismutase (SOD), one catalase (CAT), six peroxidases (POD), and five glutathione-S-transferase (GST) genes; and the survival rate and antioxidative enzyme patterns under short-term high temperature exposure of the parasitoid wasp, are examined.

Characterization of Antennal Chemosensilla and Associated Chemosensory Genes in the Orange Spiny Whitefly, (Quaintanca).

The insect chemosensory system plays an important role in many aspects of insects' behaviors necessary for their survival. Despite the complexity of this system, an increasing number of studies have begun to understand its structure and function in different insect species. Nonetheless, the chemosensory system in the orange spiny whitefly , as one of the most destructive insect pests of citrus in tropical Asia, has not been investigated yet.

Genome-Wide Identification of Neuropeptides and Their Receptors in an Aphid Endoparasitoid Wasp, .

In insects, neuropeptides and their receptors not only play a critical role in insect physiology and behavior but also are the potential targets for novel pesticide discoveries. is one of the most important and widespread aphid parasitoids, and has been successfully used to control aphid. In the present work, we systematically identified neuropeptides and their receptors from the genome and head transcriptome of .

A new pest management strategy: transforming a non-host plant into a dead-end trap crop for the diamondback moth Plutella xylostella L.

Background: The use of trap crops can reduce the egg production of female Plutella xylostella in cruciferous vegetables and is an effective method for controlling this pest. To date, most of the trap plants that have been studied are cruciferous plants containing high concentrations of glucosinolates, which are more attractive to P. xylostella female adults.

Isolation and characterization of Pseudomonas cedrina infecting Plutella xylostella (Lepidoptera: Plutellidae).

The diamondback moth, Plutella xylostella, is one of the most destructive pests worldwide and its management relies exclusively on frequent application of chemical insecticides. Resistance to common insecticides is now widespread, and novel classes of insecticides are needed. Entomopathogenic bacteria and their related products play an important role in the management of this pest.

Effect of Sublethal Doses of Imidacloprid on the Biological Performance of Aphid Endoparasitoid (Hymenoptera: Aphidiidae) and Influence on Its Related Gene Expression.

The integrated pest management (IPM) strategy was developed and used in combination with pesticides and beneficial biological control agents. To further develop IPM efficiency, it is important to evaluate the side effects of pesticides on biological control agents. is one of the most important aphid natural enemies and has been successfully used to control and other aphid species.

[Classification and reconstruction of acetabular defects in revision total hip arthroplasty].

As a mature technology gradually, the total hip arthroplasty has been known and conducted by more and more orthopedic surgeons. However, it also increased the number of hip revisions. The reasons for revision of hip mainly include: unstable, infection, aseptic loosening prosthesis, prosthesis peripheral fracture, liner wear and so on, and the acetabulum bone defect and the choice of acetabular prosthesis have been perplexing surgeons.

Infection of Powdery Mildew Reduces the Fitness of Grain Aphids () Through Restricted Nutrition and Induced Defense Response in Wheat.

In natural ecological systems, plants are often simultaneously attacked by both insects and pathogens, which can affect each other's performance and the interactions can be extended to higher trophic levels, such as parasitoids. The English grain aphid () and powdery mildew ( f. sp.

Volatile β-Ocimene Can Regulate Developmental Performance of Peach Aphid Through Activation of Defense Responses in Chinese Cabbage .

In nature, plants have evolved sophisticated defense mechanisms against the attack of pathogens and insect herbivores. Plant volatile-mediated plant-to-plant communication has been assessed in multitrophic systems in different plant species and different pest species. β-ocimene is recognized as an herbivore-induced plant volatile that play an important role in the chemical communication between plants and pests.

The Potential Coordination of the Heat-Shock Proteins and Antioxidant Enzyme Genes of in Response to Thermal Stress.

is one of the most important aphid natural enemies and has been successfully used to control and other aphid species. High temperature in summer is one of the key barriers for the application of in the field and greenhouse. In this work, we investigated the biological performance of and the response of heat-shock proteins and antioxidant enzymes under high temperature.

Identification and expression analysis of chemosensory receptor genes in an aphid endoparasitoid Aphidius gifuensis.

Olfaction and gustation play critical roles during the host-location search process of insects. Several chemosensory receptor genes are thought to be involved in providing specificity to the olfactory sensory neuron responses. The aphid endoparasitoid, Aphidius gifuensis, has been used as a biological control agent against a variety of aphid species; this parasitoid is able to detect its target host(s) effectively during the parasitic process.

Nitrogen hurdle of host alternation for a polyphagous aphid and the associated changes of endosymbionts.

Low proportion of essential amino acids (EAAs) is one of the barriers for animals to use phloem as a diet. Endosymbionts with EAAs synthesis functions are considered crucial for ameliorating the lack of EAAs in insects' diets. In this study, we transferred the insects from a cabbage-reared Myzus persicae population onto 3 new plant species including eggplant, tobacco and spinach.

Evaluation of the reference genes for expression analysis using quantitative real-time polymerase chain reaction in the green peach aphid, Myzus persicae.

The green peach aphid, Myzus persicae Sulzer (Hemiptera, Aphididae), is an important cosmopolitan pest. Real time qRT-PCR has been used for target gene expression analysis on M. persicae.

Evaluation of five antibiotics on larval gut bacterial diversity of Plutella xylostella (Lepidoptera: Plutellidae).

Larvae of the diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), have rich microbial communities inhabiting the gut, and these bacteria contribute to the fitness of the pest. In this study we evaluated the effects of five antibiotics (rifampicin, ampicillin, tetracycline, streptomycin sulfate and chloramphenicol) on the gut bacterial diversity of P.