A small diffusible signal molecule is responsible for the global control of virulence and exoenzyme
production in the plant pathogen Erwinia carotovora.
The consequence of this can become either a decrease in catabolite repression or activation of synthesis and/or exoenzyme
secretion, for example, by the mechanism of the substrate-specific induction [26-28].
Shortage of oxygen and diffusion of exoenzymes
inhibit mycelial growth and wood decomposition processes (Rayner and Boddy 1988).
Hence, we recognise two types of enzymes on the basis of site of action: intracellular enzymes or endozymes (functioning in the cell), and extracellular enzymes or exoenzymes
(functioning outside the cell).
Our laboratory has previously characterized their ability to produce different exoenzymes
and to grow in a complex growth medium containing several different inorganic components at different concentrations, These lialophilic and haloterant isolates may also produce potentially useful biological molecules such as restriction enzymes with unique properties and unique nucleotide sequence sites.
Other putative mechanisms of resistance to striga include mechanical barriers, inhibition of germ tube exoenzymes
by root exudates, phytoalexine synthesis, post-attachment hypersensitive reactions, antibiosis (e.
Francko and Heath 1982) or reactivation of phosphatase exoenzymes
produced were noted using urease test, O-nitrophenyl-beta-D-galactoside (ONPG) ([beta]-galactosidase) test, and nitrate reduction test according to the protocol of Mackie McCartney .
22), derived by anaerobic fungal exoenzymes
from cellobiose, was detected in large amounts in the culture.
Bacteria, particularly members of the genus Bacillus, can secret a wide range of exoenzymes
It was observed that although some colonies were genomically identical according to their location in the dendrogram, they could express different exoenzymes
(P1AM and P1ANM; Figure 1).
Our laboratory is studying the properties of exoenzymes
produced by some of the halophilic and halotolerant bacteria that exists in an inland salt spring near Jackson, AL.