Studies on the degradation effect of corn straw by Asian corn borer larva () digestive enzymes combined with white rot fungus ().

The lignin, cellulose and hemicellulose contained in corn straw need to be degraded before reuse. Therefore, it is urgent to explore a new strategy that can enhance the degradation effect of lignin, cellulose and hemicellulose. is one of the corn pests feeding on corn straw, which can degrade and consume corn straw by digestive enzyme secreted in the midgut.

Preliminary Analysis of Transcriptome Response of (Lepidoptera: Pyralidae) Larvae Infected with under Short-Term Starvation.

The genus contains several destructive borer pests that are found in coniferous forests in the Northern Hemisphere. spore powder was tested as a new method of pest control. In this study, (Lepidoptera: Pyralidae) was used as the object.

The effect of spraying bacterial and fungal solutions on Korean pine Sieb. et Zucc. cone development and seed quality when sprayed during the flowering phase.

Korean pine is an economically essential afforestation species limited by the unreasonable collection of cones, indiscriminate use of chemical pesticides and pest damage. This study aimed to determine whether spraying bacterial or fungal solutions affected insect pests, cone development, and the seed quality of Korean pine Sieb. et Zucc.

Genes involved in the Type I pheromone biosynthesis pathway and chemoreception from the sex pheromone gland transcriptome of Dioryctria abietella.

Dioryctria abietella is a coniferous seed orchard pest that can damage a series of host plants and cause huge losses to the forest economy. Sex pheromones play an important role in lepidopteran sex communication for reproduction and can be used as biological control agents to monitor and trap pests. However, the genes involved in the biosynthesis, transportation, and degradation of D.

Identification and analysis of olfactory genes in Dioryctria abietella based on the antennal transcriptome.

The coneworm Dioryctria abietella (Lepidoptera: Pyralidae) is an economy devastating pest that infests many valuable conifer species in the Holarctic regions, such as Pinus koraiensis Siebold and Zucc. The chemosensory system plays a crucial role in the mating, foraging, and ovipositing of this pest, and therefore it is desirable to identify chemosensory molecules for pest control. However, little is known at molecular level about the olfactory mechanisms in D.

Screening of high-virulent entomopathogenic fungal strains to infect larvae.

The gray tiger longicorn beetle, Linnaeus (Coleoptera: Cerambycidae) is a stem-boring pest that can inhibit not only the transportation of nutrients in the trunk but also the tree growth, increasing the risk of tree breakage and causing economic losses. It is distributed in China, Iran, Turkey, Russia, Korea, Japan, and Southern Europe. This study aimed to investigate selected strains that could be used as entomopathogenic fungi for the biological control of this pest.

Transcriptome analysis of abscisic acid induced 20E regulation in suspension cells.

D. Don is a medicinal plant rich in 20-hydroxyecdysone (20E), alkaloids, and other active substances. In this study, the cell suspension was incubated for 7 days, followed by the analysis on the effects of abscisic acid (ABA) on the regulation of 20E synthesis.

β-Ecdysterone accumulation and regulation in Bunge suspension culture.

Bunge cells contain β-ecdysterone (β-EC) that regulates the molting process of insect larvae. In this study, different conditions of culture have been studied to optimize the production of β-EC. Bunge growth fitted the curve of logistic equation with one growth cycle of 17 days.

20-hydroxyecdysone accumulation and regulation in Ajuga lobata D. Don suspension culture.

Suspension culture of Ajuga lobata D. Don cells provides a method of synthesis of the phytoecdysteroid 20-hydroxyecdysone (20E) which can regulate the molting process of larvae. We characterized the culture conditions to optimize 20E production.

Novel photodegradable insecticide W/TiO(2)/Avermectin nanocomposites obtained by polyelectrolytes assembly.

Stable and even microcrystals of Avermectin (AVM) were produced by recrystallization in presence of a stabilizer. Sequential layer growth was achieved by the layer-by-layer (LbL) self-assembly of biocompatible polyelectrolytes (PEs). The coated colloids were characterized using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM).

Diversity and ecological distribution of endophytic fungi associated with medicinal plants.

A total of 973 isolates of endophytic fungi were recovered from 1,144 tissue fragments of the six medicinal plant species belonging to 4 families collected in the Beijing Botanical Garden. Of these isolates 778 sporulated and were identified into 21 taxa by morphological characteristics. Among the taxa 11 belonged to Coelomycetes, 6 to Ascomycetes, and 4 to Hyphomycetes.

[Consanguinity of sixteen olethreutid moth species in northeast China based on RAPD-PCR analysis].

With RAPD-PCR technique, the phylogenetic tree of 16 olethreutid moth species in northeast China was constructed, and their consanguinity was analyzed. The results showed that the clustering of 3 Pandemis species,2 Argyrotaenia species and 4 Archips species on this phylogenetic tree was coincident with their morphological taxology, but that of some other species was not. For example, Clepsis rurinana and C.

[Research advance in application of RAPD techniques in entomology].

This paper summarized the application of RAPD techniques in insect taxology and ecology, relative of species, systemic development, identification of pest, diagnosing for pest resistance, construction of molecular linkage map, and molecular assistant breeding. The problems existing in the applications of RAPD in entomology were indicated, and their countermeasures were given. It was mentioned that with the development of theories and experimental techniques, insect molecular biology would make new progress and conquer all those problems.

[Advances of studies on the effects of plant volatiles on insect behavior].

Plant volatiles show different effects on insect behaviors, which included luring, repelling and killing. After damaged by phytophagous insects, some host plants could send volatiles luring natural enemies as an indirect defense. A summarize on the new advances of plant volatiles was given.