Journal
VIRUS GENES
Volume 43, Issue 3, Pages 445-453Publisher
SPRINGER
DOI: 10.1007/s11262-011-0654-0
Keywords
AC2; Agrobacterium virE2; Agroinoculation; Geminivirus; MYMV; TrAP
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Funding
- Department of Biotechnology (DBT), Government of India
- Council of Scientific and Industrial Research (CSIR), Government of India
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Mungbean yellow mosaic geminivirus (MYMV) causes severe yellow mosaic disease in blackgram, mungbean, Frenchbean, pigeonpea, soybean and mothbean. We attempted to induce resistance against this virus using the transcriptional activator protein gene deleted in the C-terminal activation domain (TrAP-a dagger AD) and Agrobacterium tumefaciens virE2. MYMV is known to replicate in agroinoculated tobacco leaf discs. Three transgenic tobacco plants which harboured a truncated MYMV transcriptional activator protein gene and two tobacco plants transformed with the octopine type A. tumefaciens virE2 gene were agroinoculated with an A. tumefaciens strain which harboured the partial dimers of both DNA A and DNA B of MYMV. The level of viral DNA accumulation in leaf discs of transgenic plants correlated inversely to the level of the MYMV TrAP-a dagger AD transcript. Two VirE2-transgenic plants, which complemented tumorigenesis of a virE2 mutant A. tumefaciens strain, effectively reduced MYMV DNA accumulation in the leaf disc agroinoculation assay.
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