In Arabidopsis ecotype Landsberg erecta (Ler), RPP5 confers resistance to the pathogen Peronospora parasitica. RPP5 is part of a clustered multigene family encoding nucleotide binding-leucine-rich repeat (LRR) proteins. We compared 95 kb of DNA sequence carrying the Ler RPP5 haplotype with the corresponding 90 kb of Arabidopsis ecotype Columbia (Col-0). Relative to the remainder of the genome, ...

This study has identified horizontally acquired genomic regions of enterohaemorrhagic Escherichia coli O157:H7 that regulate expression of the type III secretion (T3S) system encoded by the locus of enterocyte effacement (LEE). Deletion of O-island 51, a 14.93 kb cryptic prophage (CP-933C), resulted in a reduction in LEE expression and T3S. The deletion also had a reduced capacity to attach to ...

We have positioned amplified fragment-length polymorphism (AFLP) markers directly on the genome sequence of a complex organism, Arabidopsis, by combining gel-based AFLP analysis with in silico restriction fragment analysis using the published genome sequence. For placement of the markers, we used information on restriction fragment size, four selective nucleotides, and the rough genetic positio...

Variation in inflorescence development patterns is a central factor in the evolutionary ecology of plants. The genetic architectures of 13 traits associated with inflorescence developmental timing, architecture, rosette morphology, and fitness were investigated in Arabidopsis thaliana, a model plant system. There is substantial naturally occurring genetic variation for inflorescence development...

Polyamines, including cadaverine, are organic cations that affect numerous biological processes including transcription, translation, cell signalling, and ion channel activity. They often function in biotic and abiotic stress responses in plants. Because little is known about how plants respond to cadaverine, a quantitative natural variation approach was used to identify genetic factors that co...

Ö?rencilerin ilgi alanlar?, mizaç tipleri ve zihinsel geli?imlerinin farkl? oldu?u bir e?itim/ö?retim ortam?nda ö?retmen ö?rencilerin en çok kulland?klar? araçlar?n ba??nda ders kitaplar? gelmektedir. Günümüzde ö?rencilerin, genelde tüm derslerde, özelde ise sosyal bilgiler dersinde ayn? haz?rbulunu?luk düzeyinde olmalar?n? beklemek büyük yan?lg?d?r. Bu ba?lamda, di?er araç-gereçlerinin yoksunl...

Introdução: As lesões por esforços repetitivos (LER) e distúrbios osteomusculares relacionados ao trabalho (DORT) apresentam interrelação com a execução da atividade laboral afetam indivíduos em diferentes profissões. Os fisioterapeutas se inserem neste contexto, pois durante realização de técnicas condutas utilizam aplicação força, movimentação repetitiva dos membros superiores permanência pos...

The RPS5 and RFL1 disease resistance genes of Arabidopsis ecotype Col-0 are oriented in tandem and are separated by 1.4 kb. The Ler-0 ecotype contains RFL1, but lacks RPS5. Sequence analysis of the RPS5 deletion region in Ler-0 revealed the presence of an Ac-like transposable element, which we have designated Tag2. Southern hybridization analysis of six Arabidopsis ecotypes revealed 4-11 Tag2-h...

OBJECTIVES The aim of this study was to determine whether the release of nitric oxide (NO) from the ischemic heart increases during exercise in patients with effort angina. BACKGROUND Myocardial ischemia increases NO production in the canine heart, but no such increase has been demonstrated in the ischemic human heart. METHODS Fifteen patients with effort angina underwent supine ergometer e...