Cuticle degrading enzyme production by some isolates of the entomopathogenic fungus, Metarhizium anisopliae (Metsch.)
نویسندگان
چکیده
منابع مشابه
Diversity of glycosil hydrolase family 18 genes in environment isolates of the entomopathogenic fungus Metarhizium anisopliae
Backgound Metarhizium anisopliae is a model for host-pathogen studies due to its ability to infect several different arthropods. The first barrier to accomplish successful host-infection is transverse the host cuticle, which is a rigid chitin-rich structure. To surpass this barrier, the fungus produces several hydrolytic enzymes, among which are chitinases and endo-b-N-acetylglucosaminidases, g...
متن کاملThe entomopathogenic fungus Metarhizium anisopliae alters ambient pH, allowing extracellular protease production and activity.
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. anisopliae altered in production of oxalic acid were evaluated for the interrelationship of ambient pH, buffering capacity added to media, growth, and generation of extracellular proteases and ammonia. Wild-type and acid-overproducing mutan...
متن کاملPartial characterization of specific inducers of a cuticle-degrading protease from the insect pathogenic fungus Metarhizium anisopliae.
The insect pathogenic fungus Metarhizium anisopliae produces several extracellular cuticle-degrading proteases and evidence is consistent with one of these, PR1, which is a chymoelastase, being a determinant of pathogenicity. We have shown previously that PR1 production is regulated by both carbon catabolite and nitrogen metabolite repression and also by specific induction under derepressed con...
متن کاملBiocontrol of pigeon tick Argas reflexus (Acari: Argasidae) by entomopathogenic fungus Metarhizium Anisopliae (Ascomycota: Hypocreales)
The pigeon tick Argas reflexus is a pathogen-transmitting soft tick that typically feeds on pigeons, but can also attack humans causing local and systemic reactions. Chemical control is made difficult due to environmental contamination and resistance development. As a result, there is much interest in increasing the role of other strategies like biological control. In this study, the efficacy o...
متن کاملConidia of the insect pathogenic fungus, Metarhizium anisopliae, fail to adhere to mosquito larval cuticle
Adhesion of conidia of the insect pathogenic fungus, Metarhizium anisopliae, to the arthropod host cuticle initially involves hydrophobic forces followed by consolidation facilitated by the action of extracellular enzymes and secretion of mucilage. Gene expression analysis and atomic force microscopy were used to directly quantify recognition and adhesion between single conidia of M. anisopliae...
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ژورنال
عنوان ژورنال: Journal of Bio-Science
سال: 2014
ISSN: 2408-8595,1023-8654
DOI: 10.3329/jbs.v20i0.17648