title: 'Phytochip': on-chip detection of phytopathogenic RNA viruses by a new surface plasmon resonance platform.
abstract: The surface plasmon resonance (SPR) based 'Phytochip' was developed to distinguish virus-infected plants from non-infected plants. The system detects DNA-RNA hybridization to show the presence of phytopathogenic viruses such as the RNA virus barley stripe mosaic virus (BSMV) in wheat leaves. To achieve this BSMV and wheat specific oligonucleotides, and a negative control yeast oligonucleotide, were immobilized on a SPR gold surface chip. After optimization of the hybridization parameters with purified wheat samples, wheat infected with BSMV resulted in detectable signals with both the BSMV and the wheat probes. In contrast, a hybridization reaction was not be detected with the negative probe. The method is fast and sensitive with a detection time of 3000s (50min), a detection limit of 14.7pgμl(-1) BSMV RNA and a measuring range of 14.7-84pgμl(-1) BSMV RNA (1.323-7.56ng BSMV RNA per 90μl sample). These characteristics, combined with the high throughput design, make it suitable for application in plant breeding and virus control.
authors: Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr. 3, D-06466 Gatersleben, Germany.
authors: Kristina
authors: K
authors: Florschütz
authors: Anja
authors: A
authors: Schröter
authors: Stefan
authors: S
authors: Schmieder
authors: Wanxin
authors: W
authors: Chen
authors: Patrick
authors: P
authors: Schweizer
authors: Frank
authors: F
authors: Sonntag
authors: Norbert
authors: N
authors: Danz
authors: Keith
authors: K
authors: Baronian
authors: Gotthard
authors: G
authors: Kunze
mesh_terms: D001467:Hordeum / Q000821:virology; D009029:Mosaic Viruses / Q000302:isolation & purification*; D009693:Nucleic Acid Hybridization; D010935:Plant Diseases / Q000821:virology*; D012367:RNA, Viral / Q000032:analysis* / Q000235:genetics; D020349:Surface Plasmon Resonance; D014908:Triticum / Q000821:virology*
chemical_list: D012367:RNA, Viral