Agroinoculation Allows the Screening of Rice for Resistance to Rice Tungro Bacilliform Virus
Cruz, F. C. StA., Boulton, M. I., Hull, R., & Azzam, O. (1999) Agroinoculation Allows the Screening of Rice for Resistance to Rice Tungro Bacilliform Virus. Journal of Phytopathology, 147(11-12), pp. 653-659.
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A system for agroinoculating rice tungro bacilliform virus (RTBV), one of the two viruses of the rice tungro disease complex, has been optimised. A nontumour-inducing strain of Agrobacterium (pGV3850) was used in order to conform with biosafety regulations. Fourteen-day-old seedlings survived the mechanical damage of the technique and were still young enough to support virus replication. The level of the bacterial inoculum was important to obtain maximum infection, with a high inoculum level (0.5 × 1012 cells/ml) resulting in up to 100% infection of a susceptible variety that was comparable with infection by insect transmission. Agroinoculation with RTBV was successful for all three rice cultivarss tested; TN1 (tungro susceptible), Balimau Putih (tungro tolerant), and IR26 (RTSV and vector resistant). Agroinoculation enables resistance to RTBV to be distinguished from resistance to the leafhopper vector of the virus, and should prove useful in screening rice germplasm, breeding materials, and transgenic rice lines.
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|Item Type:||Journal Article|
|Keywords:||agroinoculation, rice tungro bacilliform virus, screening for resistance, Jefferson, Osmat, Ossmat, Azzam|
|Subjects:||Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > HORTICULTURAL PRODUCTION (070600)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 1999 Blackwell Wissenschafts-Verlag, Berlin|
|Deposited On:||05 Apr 2011 08:52|
|Last Modified:||27 Dec 2012 10:41|
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