摘要:
The present invention relates to isolated nucleic acid molecules encoding a type III-secreted bacterial protein capable of modifying a cell death pathway in a plant cell. One aspect of the present invention involves an isolated nucleic acid molecule having a nucleotide sequence that encodes the HopPtoD2 protein of Pseudomonas syringae pv. syringae DC 3000. Expression vectors, host cells, and transgenic plants which include the DNA molecules of the present invention are also disclosed. The nucleic acid molecules of the present invention can be used to impart disease resistance to a plant and to make a plant hypersusceptible to colonization by nonpathogenic bacteria.
摘要:
Isolated and cloned baculovirus genes encoding a polypeptide protein present in the occlusion body of certain baculoviruses such as Trichoplusia ni granulosis virus and Pseudaletia unipuncta granulosis virus Hawaiian strain, said genes possessing a biological activity of enhancing virus infection of host insects by causing rapid degradation of the peritrophic membrane lining the midgut lumen of insects. The invention is also directed to pesticides incorporating said genes, i.e. the purified conserved and enhancing baculovirus proteins herein termed enhancins.
摘要:
A recombinant subunit vaccine for protection dogs against infection caused by canine parvovirus comprising VP-2 protein produced during replication of a recombinant baculovirus in insect tissue culture cells or insects which are a permissive hosts for the replication of selected baculoviruses.
摘要:
The present invention relates to methods of treating immune disorders and/or inflammation using certain modulator compounds. In one embodiment, the present invention provides a method of treating an immune and inflammatory disorders disorder by administering a composition comprising a therapeutically effective dosage of an ascaroside compound, or a mixture of ascaroside compounds, or a mixture containing at least one ascaroside..
摘要:
This disclosure relates to an isolated and cloned DNA from a granulovirus virus which comprises an amino acid sequence of the viral gene encoding a polypeptide isolated from occlusion bodies of certain baculoviruses and which polypeptide possesses the biological activity of enhancing baculovirus infectivity. Such proteins termed herein as 'enhancins' are found within the viral occlusion body, have a disruptive effect on the insect peritrophic membrane (PM) proteins, and/or interact with the midgut epithelium in such a manner as to permit the increased adsorption, penetration and uptake of virus particles by midgut cells with a concomitant increase in host mortality. Disclosed herein is a recombinant DNA sequence which codes for the enhancin protein of the Helicoverpa armigera granulovirus virus. The DNA sequence is shown in SEQ. ID. NO. :1 and the open reading frame is shown in SEQ. ID. NO.: 1: base pairs 271-2976. The amino acid sequence of the enhancin protein is shown in SEQ. ID. NO.: 2.
摘要:
A method of infecting insects is disclosed; the method utilizes a form of a baculovirus which is highly efficient at establishing infection and is normally destined to become occluded within the polyhedrin or granulin - Pre-occluded Virus (POV). Specifically, the POV as derived from a polyhedrin-minus or granulin-minus (lacking a functional polyhedrin or granulin gene) baculovirus is fed to insect larvae per os resulting in high infection rates. The discovery of the POV form of polyhedrin-minus baculoviruses was essential to our invention of the novel method of infecting insect larvae per os using the POV form of polyhedrin-minus baculovirus, and as such is also disclosed.
摘要:
Micro-organisme procaryotique et son procédé de production, le micro-organisme contenant au moins une partie d'ADN stable dans le chromosome. Les micro-organismes ci-décrits ainsi que leurs descendants sont exempts de restructuration génétique comprenant l'ADN étranger. Dans un mode préférentiel de réalisation on utilise des cyanobactéries. Les micro-organismes sont produits en introduisant dans la cellule un véhicule d'insertion contenant de l'ADN étranger lié entre deux parties d'ADN homologues à des parties adjacentes du chromosome du récepteur.