During a regular monitoring of antimicrobial resistance in a farrowing farm in Southern China, 117 Escherichia coli isolates were obtained from sows and piglets. Compared with the isolates from piglets, the isolates from sows exhibited higher resistance rates to the tested cephalosporins. Correspondingly, the total detection rate of the bla CMY-2/bla CTX-M genes in the sow isolates (34.2%) was ...

A 139,622-bp IncI1 ST71 conjugative plasmid pEC012 from an avian Escherichia coli D-ST117 strain was sequenced, which carried five IS26-bracketed resistance modules: IS26-fosA3-orf1-orf2-Δorf3-IS26, IS26-fip-ΔISEcp1-bla CTX-M-65-IS903D-iroN-IS26, IS26-ΔtnpR-bla TEM-1-rmtB-IS26, IS26-oqxAB-IS26, and IS26-floR-aac(3)-IV-IS26. The backbone of pEC012 was similar to that of several other IncI1 ST71 ...

The evidence in support of two types of alternate disjunction in translocation heterozygotes from the German cockroach, Blattella germanica (L.), is reviewed. When unique cytomorphological features occur in the translocation figure, the two types of alternate disjunction are identifiable regardless of the angle of observation. Photographs supporting this contention are presented for alternate-1...

Blattella germanica önemli bir zararlı olup insanların patojen ve parazitlerini taşıyabilmekte, alerjik reaksiyonlara yiyecek kontaminasyonlarına neden olabilmektedir. Mücadelesinde bu gün için kullanılan kimyasallarla ilişkili riskler problemlerden dolayı alternatif yaklaşım olarak entomopatojen fungusların kullanımı araştırılmaktadır. Bu çalışmada, toprak örneklerinden izole edilmiş yedi fung...

Mevcut çalışmada laboratuar koşullarında yarı-sentetik spinosin insektisidi Spinetoram’ ın solüsyon halinde üç farklı uygulama yüzeyinde (beton, fayans ve parke) Alman Hamam böceği ‘nin ergin dönemine karşı kontak toksisitesi araştırılmıştır. Üç yüzeyde B. germanica’ erginlerine 1, 3, 5, 7, 9 gün süreyle 2.5, 7.5, 10, 15, 25, 50, 75, 100 (mg aktif madde-m2) konsantrasyon-larında biyolojik testl...

Tamgermanitin, a unique N-trans-Isoferuloyltyramine, together with the hitherto unknown polyphenolics, 2,4-di-O-galloyl-(α/β)-glucopyranose and kaempferide 3,7-disulphate have been isolated from the leaf aqueous ethanol extract of the false tamarisk, Myricaria germanica DESV. In addition, 18 known phenolics were also separated and characterized. All structures were elucidated on the basis of de...