fusarium wilt caused by fusarium oxysporum f.sp. lycopersici is one of the major obstacles to the production of tomato which causes huge losses in tomato products worldwide. in order to increase the tolerance to this disease, a triple structure containing pr1, chitinase and glucanase genes controlled by 35s promoter was transferred to tomato. eight days after planting on pre-culture medium, exp...

Localization of insect molting chitinase in the old Truman’s terminology. An additional check to assure cuticle of pharate Munduca pupae has recently been that the pharate pupae analyzed were developing at reported from this laboratory [l] . It was shown that comparable rates was afforded by the fact that events highly active chitinase is held tenaciously in the cuticle late in the pupal molt, ...

From chickpea (Cicer arietinum L.), one ,f3-1,3-glucanase and two chitinases were purified and characterized (Vogelsang and Barz, 1993). The P-l,S-glucanase and one chitinase each with a basic isoelectric point (class I) were shown to be localized in vacuoles, whereas the second class 111 acidic chitinase revealed an extracellular localization (Mackenbrock et al., 1992). Here we report on the c...

conclusions in conclusion, chit1 24 bp duplication might not be a candidate gene for susceptibility to ptb. larger studies are necessary to confirm these findings in various populations. results homozygous wild type, heterozygous and homozygous mutant frequencies of chit1 24 bp duplication polymorphism were 43.9%, 43.9% and 12.2% in controls and 42.8%, 45.1% and 12.1% in ptb patients. we found ...

A soil bacterium capable of degrading chitin on chitin agar plates was isolated and identified as Bacillus pumilus isolate U5 on the basis of 16S rDNA sequence analysis. In order to optimize culture conditions for chitinase production by this bacterium, a two step approach was employed. First, the effects of several medium components were studied using the Plackett-Burman design. Among various ...

A soil bacterium capable of degrading chitin on chitin agar plates was isolated and identified as Bacillus pumilus isolate U5 on the basis of 16S rDNA sequence analysis. In order to optimize culture conditions for chitinase production by this bacterium, a two step approach was employed. First, the effects of several medium components were studied using the Plackett-Burman design. Among various ...

Phytophthora-infected plants. These results suggest some diversity in the chitinase activities concerning New chitosanase acidic isoforms have been shown in substrate specificity in mycorrhizal plants. The Glomus mosseae-colonized tomato roots and their possible implications of these observations in the induction, together with the previously described functioning of the symbiosis is discussed....