The surprise was great in the early 1970s when it was shown that valine could be covalently attached to the 3' terminus of the genomic RNA from turnip yellow mosaic virus (TYMV) by valyl-tRNA synthetase (1) and, soon after, that tyrosyland histidyl-tRNA synthetases can aminoacylate the RNAs from brome mosaic virus (BMV) and tobacco mosaic virus (2, 3). The surprise was even greater when it was ...

Background Allergy to Apium graveolens is one of the more severe food allergies. Six celery allergens have been characterised, Api g 1-6, while additional allergens have characterised from other members of the Magnoliospida class, including kiwi, peanut and ragweed, suggesting homologous allergens may also be present in celery. The participants of the Omics Allergy School 2013 were provided wit...

Background and Aims: Certification programs of plant propagating materials rely on faster, cheaper and more importantly sensitive and reliable methods for detection of systemic pathogens as indicated in national and/or international health standards of plant propagating materials. Reverse transcription-polymerase chain reaction (RT-PCR) has been documented as an alternative assay for certific...

In contrast to previous observations on phloem-limited geminiviruses supported in movement andaccumulation by RNA viruses such as cucumo- and tobamoviruses, tissue infiltration by Abutilon mosaic virus (AbMV) was enhanced by neither Tobacco mosaic virus nor Tomato mosaic virus (ToMV) in two different hosts, Nicotiana benthamiana and tomato. Both tobamoviruses exerted a negative effect on the DN...