At least two origins of fungicides resistance in grapevine downy mildew populations

Article Abstract:

The first case study of the evolutionary processes that lead to the emergence of quinine outside inhibiting (QoI) fungicide resistance in the plant pathogen Plasmopara viticola is presented. Sequence analysis shows that all resistant isolates carried a mutation resulting in the replacement of glycine by alanine at codon 143 (G143A).

Physiological aspects, Genetic aspects, Mildew

---

New vector for efficient allelic replacement in naturally nontransformable, low-GC-content, gram-positive bacteria

Article Abstract:

A shuttle vector designated pMAD was constructed for quickly generating gene inactivation mutants in naturally nontransformable gram-positive bacteria. The plasmid was used in Staphylococcus aureus, Listeria monocytogenes, and Bacillus cereus to efficiently construct mutants with or without an associated antibiotic resistance gene.

Gram-positive bacteria, Bacillus cereus

---

Nitrogen-related hypermutator strain of Synechococcus sp. for use in vivo artificial evolution

Article Abstract:

Two different hypermutator strains of Synechococcus sp. strain PCC 7942 by insertionally inactivating or nutritionally repressing the DNA mismatch repair gene, mutS are constructed. Hypermutation caused by repression in PnirA-mutS transformants led to an accumulation of spectinomycin resistance mutations during growth.

DNA repair, Genetic research

Similar abstracts:

• Abstracts: Transfer of transposon Tn916 from Bacillus subtilis into a natural soil population. Temperature-dependent induction of an acid-inducible stimulon of Escherichia coli in broth
• Abstracts: Looping versus linking: toward a model for long-distance gene activation. Structure of HoxA9 and Pbx1 bound to DNA: Hox hexapeptide and DNA recognition anterior to posterior
• Abstracts: Inbreeding depression in self-incompatible and self-compatible populations of Leavenworthia alabamica. Overdominant lethals as part of the conifer embryo lethal system
• Abstracts: Factor analysis of risk variables associated with metabolic syndrome in Asian Indian adolescents
• Abstracts: Behavioral and physiological indices related to BMI in a cohort of primary schoolchildren in Greece. Biocultural aspects of obesity in young Mexican schoolchildren

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.