Wild-type strains of the phytopathogenic enterobacterium Erwinia chrysanthemi are unable to use lactose as a carbon source for growth although they possess a beta-galactosidase activity. Lactose-fermenting derivatives from some wild types, however, can be obtained spontaneously at a frequency of about 5 X 10(-7). All Lac+ derivatives isolated had acquired a constitutive lactose transport system...

Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 lQW, UK * Laboratoire de G&n&ique Moleculaire des Microorganismes et des Interactions Cel I ulai res, CNRS-UMR 5577, INSA Bat 406,20 Avenue Albert Einstein, 69621 Villeurbanne Cedex, France Erwinia carotovora has two Kdg R-li ke proteins belonging to the IclR family of transcriptional regulators : identificati...

A rapid identification of phytopathogenic bacteria was available at species level by the direct colony thin-layer chromatography. Distinct difference was observed in chromatographic profile between Emoirza’a chrysanthemi and E. carotovora subsp. carotovora. In the case of Erwinia carotovora subsp. carotovora, a characteristic spot at Rf 0.57 appeared concomitantly with a common spot at 0.62. Th...

The insect-vectored disease malaria is a major world health problem. New control strategies are needed to supplement the current use of insecticides and medications. A genetic approach can be used to inhibit development of malaria parasites (Plasmodium spp.) in the mosquito host. We hypothesized that Pantoea agglomerans, a bacterial symbiont of Anopheles mosquitoes, could be engineered to expre...

Dickeya chrysanthemi is well known as a plant pathogen that caused major blackleg in the European potato industry in the 1990s. D. chrysanthemi strain L11 was discovered in a recreational lake in Malaysia. Here, we present its draft genome sequence.

Background L-asparaginase II (asnB), a periplasmic protein commercially extracted from E coli and Erwinia, is often used to treat acute lymphoblastic leukemia. an enzyme that converts L-asparagine aspartic acid ammonia. Cancer cells are dependent on asparagine other sources for growth, when these deprived of by the action enzyme, cancer selectively die. Objective Questions remain as whether asn...

The current study was aimed to investigate the changes in metabolites and metabolic pathways in  Dendrobium officinale  stem infected by  Erwinia  sp., causal agent of  D. officinale . A total 176 were obtained by LC-MS D.  before after infection  Besides, KEGG MetaboAnalyst 5.0 (https://www.metaboanalyst.ca/) used analyze metabolites, which only 73 Output ID ...