AI Article Synopsis
- The study aimed to evaluate methods for detecting infectious tobamoviruses in forest soils in New York, using samples from Whiteface Mountain and Heiberg Forest.
- A phosphate buffer was found to be most effective for eluting the tomato mosaic tobamovirus from soil, with mineral soils showing higher virus retention than organic soils.
- The research confirmed the presence of tobamoviruses in the sampled forest soils, highlighting the potential for these viruses to spread and persist within forest ecosystems through soil transmission.
Article Abstract
Our objectives were to evaluate elution and bait plant methods to detect infectious tobamoviruses in forest soils in New York State. Soils were collected from two forest sites: Whiteface Mountain (WF) and Heiberg Forest (HF). The effectiveness of four buffers to elute tomato mosaic tobamovirus (ToMV) from organic and mineral fractions of WF soil amended with ToMV was tested, and virus content was assessed by enzyme-linked immunosorbent assay (ELISA). The effectiveness of Chenopodium quinoa (Willd.) bait plants to detect the virus also was tested. Both methods then were utilized to detect tobamoviruses in 11 WF and 2 HF soil samples. A phosphate buffer (100 mM, pH 7.0) eluted more ToMV from soil than the other buffers tested. Mineral soil bound more virus than organic soil. Virus recoveries from virus-amended organic and mineral soils were 3 and 10%, respectively, and the detection sensitivity was 10 to 20 ng/g of soil. Roots of bait plants grown in all virus-amended soils tested positive by ELISA, and virus concentrations averaged 10 ng/g. Both ToMV and tobacco mosaic tobamovirus (TMV) were transmitted to C. quinoa by elution from one of two HF soil samples but not from the WF soil samples. A tobamovirus was detected by bait planting in 12 of 73 (16%) root extracts representing 5 of 13 soil samples (38%). Tobamovirus-like particles were seen by transmission electron microscopy in 6 of 12 infected root extracts. Tobamoviruses occur in forest soils in New York State. Abiotic soil transmission to trees may permit localized spread and persistence of these viruses in forest ecosystems.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC106165 | PMC |
| http://dx.doi.org/10.1128/AEM.64.4.1430-1435.1998 | DOI Listing |
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