Transgenic expression of gallerimycin, a novel antifungal insect defensin from the greater wax moth Galleria mellonella, confers resistance to pathogenic fungi in tobacco
-
Gregor Langen
, Jafargholi Imani , Boran Altincicek , Gernot Kieseritzky , Karl-Heinz Kogel and Andreas Vilcinskas
Abstract
A cDNA encoding gallerimycin, a novel antifungal peptide from the greater wax moth Galleria mellonella, was isolated from a cDNA library of genes expressed during innate immune response in the caterpillars. Upon ectopic expression of gallerimycin in tobacco, using Agrobacterium tumefaciens as a vector, gallerimycin conferred resistance to the fungal pathogens Erysiphe cichoracearum and Sclerotinia minor. Quantification of gallerimycin mRNA in transgenic tobacco by real-time PCR confirmed transgenic expression under control of the inducible mannopine synthase promoter. Leaf sap and intercellular washing fluid from transgenic tobacco inhibited in vitro germination and growth of the fungal pathogens, demonstrating that gallerimycin is secreted into intercellular spaces. The feasibility of the use of gallerimycin to counteract fungal diseases in crop plants is discussed.
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Articles in the same Issue
- Protein aggregation in crowded environments
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- Functional studies of the small subunit of EcoHK31I DNA methyltransferase
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Articles in the same Issue
- Protein aggregation in crowded environments
- Nitrite, a naturally occurring precursor of nitric oxide that acts like a ‘prodrug’
- Functional studies of the small subunit of EcoHK31I DNA methyltransferase
- Functional analysis of amino acid residues at the dimerisation interface of KpnI DNA methyltransferase
- Conformation and stability of the Streptococcus pyogenes pSM19035-encoded site-specific β recombinase, and identification of a folding intermediate
- Tyr-48, a conserved residue in ribotoxins, is involved in the RNA-degrading activity of α-sarcin
- Pathogenicity of catalytic antibodies: catalytic activity of Bence Jones proteins from myeloma patients with renal impairment can elicit cytotoxic effects
- Transgenic expression of gallerimycin, a novel antifungal insect defensin from the greater wax moth Galleria mellonella, confers resistance to pathogenic fungi in tobacco
- Catalytic pathways of Euphorbia characias peroxidase reacting with hydrogen peroxide
- Biochemical and pharmacological characterization of the human bradykinin subtype 2 receptor produced in mammalian cells using the Semliki Forest virus system
- A spectroscopic analysis of the interaction between the human regulatory proteins RACK1 and Ki-1/57
- Subcellular localisation of human inositol 1,4,5-trisphosphate 3-kinase C: species-specific use of alternative export sites for nucleo-cytoplasmic shuttling indicates divergent roles of the catalytic and N-terminal domains
- The gating effect of calmodulin and calcium on the connexin50 hemichannel
- C-Terminal fusion of eGFP to the bradykinin B2 receptor strongly affects down-regulation but not receptor internalization or signaling
- Angiotensin I-converting enzyme inhibitor peptides derived from the endostatin-containing NC1 fragment of human collagen XVIII
- μ-Calpain binds to lipid bilayers via the exposed hydrophobic surface of its Ca2+-activated conformation
- Cathepsin L splice variants in human breast cell lines