Search Results - "St. Leger, R.J"

scorpion neurotoxin increases the potency of a fungal insecticide by Wang, C, St Leger, R.J

“…The low virulence of the insecticidal fungus Metarhizium anisopliae has stymied its widespread use in controlling insect pests. We show that high-level…”
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collagenous protective coat enables Metarhizium anisopliae to evade insect immune responses by Wang, C, St. Leger, R.J

“…The ubiquitous fungal pathogen Metarhizium anisopliae kills a wide range of insects. Host hemocytes can recognize and ingest its conidia, but this capacity is…”
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Differential gene expression by Metarhizium anisopliae growing in root exudate and host ( Manduca sexta) cuticle or hemolymph reveals mechanisms of physiological adaptation by Wang, Chengshu, Hu, Gang, St. Leger, Raymond J.

“…Like many other fungal pathogens Metarhizium anisopliae is a facultative saprophyte with both soil-dwelling and insect pathogenic life-stages. In addition, as…”
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Construction of an improved mycoinsecticide overexpressing a toxic protease by St Leger, R.J. (Cornell University, Ithaca, NY.), Joshi, L, Bidochka, M.J, Roberts, D.W

“…Mycoinsecticides are being used for the control of many insect pests as an environmentally acceptable alternative to chemical insecticides. A key aim of much…”
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Ambient pH is a major determinant in the expression of cuticle-degrading enzymes and hydrophobin by Metarhizium anisopliae by St Leger, R.J, Joshi, L, Roberts, D

“…Secretion of proteolytic and chitinolytic enzymes is a hallmark of infection processes of Metarhizium anisopliae in response to host (insect) cuticular…”
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entomopathogenic fungus Metarhizium anisopliae alters ambient pH, allowing extracellular protease production and activity by St Leger, R.J, Nelson, J.O, Screen, S.E

“…Ambient pH regulates the expression of virulence genes of Metarhizium anisopliae, but it was unknown if M. anisopliae can regulate ambient pH. Mutants of M…”
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Cloning, expression, and substrate specificity of a fungal chymotrypsin: evidence for lateral gene transfer from an actinomycete bacterium by Screen, S.E, St. Leger, R.J

“…Unlike trypsins, chymotrypsins have not until now been found in fungi. Expressed sequence tag analysis of the deuteromycete Metarhizium anisopliae identified…”
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Characterization and ultrastructural localization of chitinases from Metarhizium anisopliae, M. flavoviride, and Beauveria bassiana during fungal invasion of host (Manduca sexta) cuticle by St Leger, R.J. (Cornell University, Ithaca, NY.), Joshi, L, Bidochka, M.J, Rizzo, N.W, Roberts, D.W

“…Extracellular chitinases have been suggested to be virulence factors in fungal entomopathogenicity. We employed isoelectric focusing and a set of three…”
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Biochemical characterization and ultrastructural localization of two extracellular trypsins produced by Metarhizium anisopliae in infected insect cuticles by St Leger, R.J. (Cornell University, Ithaca, NY.), Joshi, L, Bidochka, M.J, Rizzo, N.W, Roberts, D.W

“…Proteinase 2 (Pr2) is a fungal (Metarhizium anisopliae) serine proteinase which has a tryptic specificity for basic residues and which may be involved in…”
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Nuclear rDNA phylogeny in the fungal genus Verticillium and its relationships to insect and plant virulence, extracellular proteases and carbohydrases by Bidochka, M.J, St Leger, R.J, Stuart, A, Gowanlock, K

“…Phylogenetic relationships among 18 isolates in the genus Verticillium, representing 13 species of diverse econutritional groups (pathogens of insects, plants,…”
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Cloning and regulatory analysis of starvation-stress gene, ssgA, encoding a hydrophobin-like protein from the entomopathogenic fungus, Metarhizium anisopliae by St Leger, R J, Staples, R C, Roberts, D W

“…The nucleotide (nt) sequence of a starvation-stress gene (ssgA) of the entomopathogenic fungus, Metarhizium anisopliae, and its deduced amino acid (aa)…”
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Differentiation of species and strains of entomopathogenic fungi by random amplification of polymorphic DNA (RAPD) by Bidochka, M.J, McDonald, M.A, St Leger, R.J, Roberts, D.W

“…Polymerase chain reaction (PCR)-based technology, involving random amplification of polymorphic DNA (RAPD), was used to assess the genomic variability between…”
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Isolation of a cDNA encoding a novel subtilisin-like protease (Pr1B) from the entomopathogenic fungus, Metarhizium anisopliae using differential display-RT-PCR by Joshi, Lokesh, St. Leger, Raymond J, Roberts, Donald W

“…Reverse transcription differential display PCR (RT-DD-PCR) was used to identify genes that are specifically expressed by Metarhizium anisopliae when it…”
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Characterization of cuticle-degrading proteases produced by the entomopathogen Metarhizium anisopliae by St Leger, R J, Charnley, A K, Cooper, R M

“…Two chymoelastases and three trypsinlike proteases were separated from culture filtrates of the entomopathogen Metarhizium anisopliae. A chymoelastase (Pr1)…”
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Ultrastructural localization of a cuticle-degrading protease produced by the entomopathogenic fungus Metarhizium anisopliae during penetration of host (Manduca sexta) cuticle by Goettel, M.S, St Leger, R.J, Rizzo, N.W, Staples, R.C, Roberts, D.W

“…Insect Pathology Resource Center, Boyce Thompson Institute, Tower Road, Cornell University, Ithaca, New York 14853, USA ABSTRACT SUMMARY: Gold-labelled rabbit…”
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Characterization of a novel carboxypeptidase produced by the entomopathogenic fungus Metarhizium anisopliae by St Leger, R J, Bidochka, M J, Roberts, D W

“…Preparative isoelectric focusing and gel filtration chromatography were used to purify a carboxypeptidase produced by the entomopathogenic fungus Metarhizium…”
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Fate of biological control introductions: monitoring an Australian fungal pathogen of grasshoppers in North America by Bidochka, M.J. (Trent University, Peterborough, ON, Canada.), Walsh, S.R.A, Ramos, M.E, St Leger, R.J, Silver, J.C, Roberts, D.W

“…In North America there are two generally recognized pathotypes (pathotypes 1 and 2) of the fungus Entomophaga grylli which show host-preferential infection of…”
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Cuticle-degrading enzymes of entomopathogenic fungi: regulation of production of chitinolytic enzymes by St. Leger, R.J, Cooper, R.M, Charnley, A.K

“…School of Biological Sciences, University of Bath, Claverton Down, Bath BA2 7AY, UK ABSTRACT Summary: Synthesis of chitinase and chitosanase by the…”
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Pathotypes in the Entomophaga grylli species complex of grasshopper pathogens differentiated with random amplification of polymorphic DNA and cloned-DNA probes by BIDOCKHA, M. J, WALSH, S. R. A, RAMOS, M. E, ST LEGER, R. J, SILVER, J. C, ROBERTS, D. W

“…The zygomycetous fungus Entomophaga grylli is a pathogen that shows host-specific variance to grasshopper subfamilies. Three pathotypes of the E. grylli…”
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Induction of novel proteins in Manduca sexta and Blaberus giganteus as a response to fungal challenge by Bidochka, M.J, St Leger, R.J, Roberts, D.W

“…The induction of proteins in the tobacco hornworm larvae, Manduca sexta, and the adult tropical cockroach, Blaberus giganteus, was examined after challenge…”
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