Insect pathogenic fungi

SH insect pathogenic fungi - Verticillium hemipterigenum Vertihemipteiiides A and B - diketopiperazines with antimicrobiai and cytotoxic activities 103... 

Isaka M, Kittakoop P, Kirtikara K, Hywel-Jones NL, Thebtaranonth Y (2005) Bioactive Substances from Insect Pathogenic Fungi. Acc Chem Res 38 813... 

DIMBOA (2,4-dihydroxy-7-methoxy-l, 4-benzoxazin-3-one) play an important role in the chemical defense of cereals against insects, pathogenic fungi and bacteria (Niemeyer, 1988). Researches with maize indicate thatmycorrizal colonization induced accumulation of DIMBOA and increase in transcript levels of Bx9. Concentrations of DIMBOA in maize roots inoculated both G. mosseae and Rhizoctonia solani were significantly higher than those roots inoculated separately with G. mosseae or Rhizoctonia solani. 

Figure 1. Sequence relatedness among putative KS domains of PKS gene sequences from insect pathogenic fungi and selected KS domains from GenBank. Names of source taxa are followed by their ARSEF accessions number and a GenBank sequence Accession No, Primer designation is given for those sequences not amplified by primers KS1/KS2. Applied Microbiology and Biotechnology Reproducedfrom reference 47 with kind permission of...

Figure 2. Natural products described from insect pathogenic fungi.

Baiting methods have been used successfully for isolation of insect pathogenic fungi, where available, live or killed pupae (the latter the byproducts of silkworm culture) have been used to selectively isolate insect pathogens from soils (Sato et al., 1994). Selective media have been developed for Metarhizium and Beauveria which appear to be broadly useful for other entomopathogens. These include the copper-based medium of Baath (1991) and the dodine-based... 

Bioactive O-heterocycles from insect pathogenic fungi 05ACR813. 

Novel bioactive compounds from insect pathogenic fungi 07Y700. 

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