A phylogeographical analysis of the scald pathogen Rhynchosporium secalis was conducted using nuclear DNA sequences from two neutral restriction fragment length polymorphism loci and the mating-type idiomorphs. Approximately 500 isolates sampled from more than 60 field populations from five continents were analysed to infer migration patterns and the demographic history of the fungus. Migration...

Rhynchosporoside, a phytotoxic compound, has been isolated from cultures of Rhynchosporium secalis, the causal agent of scald disease of barley. The toxin is a cello-bioside of 1,2-propanediol. The compound may play some role in symptom expression because it was isolated from diseased plants in concentrations similar to those that could cause symptoms in toxin-treated plants. The toxin causes l...

GHEENS TKOUBLE Tropical Turf Tips from the Everglades Experiment Station, Belle Glade, Fla., says: "On most courses we have visited some of the greens must be watered lightly or they become soggy, with the result that they scald under a hot sun and are readily attacked by fungus diseases. A core of sod from such greens will usually show good root growth only in the upper 2 inches and no roots a...

Burns commonly occur in children and their first aid remains inadequate despite burn prevention programmes. While scald injuries predominate, contact and flame burns remain common. Although typically less severe injuries overall than those in adults, hypertrophic scarring complicating both the burn wound and even donor sites occur more frequently in children. The heterogeneous nature of burn wo...

Necrotizing soft tissue infection (NSTI) is a rare but potentially fatal infection. It usually complicates skin traumas, such as lacerations, scratches, insect bites, burns and recent surgeries. Rapid diagnosis is crucial for a favourable prognosis. NSTI is an emergency surgical condition and every delay in the operative treatment has a proven negative effect. Recently, a rare case presented to...

In childhood, burn or scald injuries are comparatively common, and the greatest risk is to infants and toddlers. The extent and severity of injuries can vary greatly, which can significantly affect recovery and outcome. To provide high quality nursing care to the child who has sustained a burn injury and the family, the children's nurse should understand the pathophysiology of the trauma and th...

Objectives: (1) Obtain complete genomic clones plus promoter regions of apple peel genes encoding HMGR isozymes HMG2 and HMG3 and determine whether expression of these genes is regulated by ethylene; (2) Demonstrate function of the gene product and obtain a genomic clone of the ethyleneresponsive promoter of the putative apple α-Farnesene Synthase gene; (3) Determine correlation among ethylene-...