Considerações sobre o manejo do complexo afídeos / nanismo-amarelo em trigo, Independência/rs, 2018.

Os afídeos figuram como importantes pragas nas mais diversas culturas. Porém na cultura do trigo e demais cereais de inverno são as principais pragas causadoras de danos. Sua importância se deve pelos impactos negativos causados pelos danos diretos e indiretos. Os danos diretos dizem respeito à sucção de seiva e ao depauperamento das plantas

Pearl Millet Breeding Lines Developed at ICRISAT: A Reservoir of Variability and Useful Source of Non-Target Traits

The International Crops Research Institute for the Semi- Arid Tropics (ICRISAT) conducts inter-disciplinary and partnership-based research for the genetic improvement of its mandate crops. During the 1970s and 1980s, the pearl millet improvement at ICRISAT, Patancheru, emphasized on: (i) developing a diverse range of traitspecific composites, based on the germplasm largely from the Western and Central Africa; (ii) improving them by the process of recurrent selection, principally for grain yield and downy mildew (Sclerospora graminicola (Sacc.) Schroet ) resistance; and (iii) developing open-pollinated varieties (OPVs) (Rai and Anand Kumar 1994). The improved composites, OPVs, and breeding lines derived from them, were disseminated for worldwide utilization. These germplasm, improved populations, and breeding lines were also utilized at ICRISAT, Patancheru, mostly for pedigree breeding which was aimed at developing a wide and diverse range of improved trait-specific breeding lines and hybrid parents employing higher grain yield potential and downy mildew (DM) resistance, as the main selection criteria. Limited efforts were also made to develop composites, OPVs, and breeding lines with additional resistance to smut (Tolyposporium penicillariae Bref.) and ergot (Claviceps fusiformis Loveless)

Acquired Epidermodysplasia Verruciformis Due to Multiple and Unusual HPV Infection Among Vertically-Infected, HIV-Positive Adolescents in Zimbabwe

We have characterized the EV-like dermatosis of acquired HIV in 4 adolescents. Multiple HPV types were isolated in skin tissue samples, including β-HPV, but also high levels of HPV 1 and 2. ARV did not improve the EV eruption

Urticaria and infections

Urticaria is a group of diseases that share a distinct skin reaction pattern. Triggering of urticaria by infections has been discussed for many years but the exact role and pathogenesis of mast cell activation by infectious processes is unclear. In spontaneous acute urticaria there is no doubt for a causal relationship to infections and all chronic urticaria must have started as acute. Whereas in physical or distinct urticaria subtypes the evidence for infections is sparse, remission of annoying spontaneous chronic urticaria has been reported after successful treatment of persistent infections. Current summarizing available studies that evaluated the course of the chronic urticaria after proven Helicobacter eradication demonstrate a statistically significant benefit compared to untreated patients or Helicobacter-negative controls without urticaria (p < 0.001). Since infections can be easily treated some diagnostic procedures should be included in the routine work-up, especially the search for Helicobacter pylori. This review will update the reader regarding the role of infections in different urticaria subtypes