Foliar and root symptoms are described for Australian lucerne yellows (ALuY), a disease common in Australian lucerne seed crops. A phytoplasma was detected in plants exhibiting symptoms, but not in symptomless lucerne plants. Oligonucleotide primers specific to the phytoplasma 16S-23S rRNA intergenic spacer region (SR) were used in polymerase chain reaction (PCR) assays on DNA extracted from lu...

A 44-year old man with prolonged frozen hip was treated with manipulation under anesthesia and pressure dilatation of the left hip joint. The treatment was successful and after one year the hip was symptomless.

The disease septoria leaf blotch of wheat, caused by fungal pathogen Septoria tritici, is of worldwide concern. The fungus exhibits a hemibiotrophic lifestyle, with a long symptomless, biotrophic phase followed by a sudden transition to necrotrophy associated with host necrosis. Little is known about the systematic interaction between fungal pathogenicity and host responses at specific growth s...

Several breeding programs are under way to introduce resistance to bacterial wilt caused by Ralstonia solanacearum in solanaceous crops. The lack of screening methods allowing easy measurement of pathogen colonization and the inability to detect latent (i.e., symptomless) infections are major limitations when evaluating resistance to this disease in plant germplasm. We describe a new method to ...

The evaluation of incidentally detected symptomless microhaematuria in schoolchildren is controversial. Some authors advocate varying numbers of immediate tests, while others recommend investigations only in cases who develop systemic symptoms or signs, or a decline in renal function. The objective of this study was to estimate the extent to which this uncertainty affects the declared habits of...