Table 1 Specific interference with virus infection by bacterial crude preparations
From: Crude extracts of bacterially expressed dsRNA can be used to protect plants against virus infections
Bacterial preparation | Phenotype | Virus titer |
|---|---|---|
Coinoculation (PPV)* | ||
HT115 | S 3/3 | 1.221 ± 0.105 |
PPV HC dsRNA | R 14/17 | 0.007 ± 0.004 |
S 3/17 | 1.197 ± 0.060 | |
PPV CP dsRNA | R 8/11 | 0.017 ± 0.017 |
S 3/11 | 1.310 ± 0.103 | |
PMMoV IR 54 | S 7/7 | 1.149 ± 0.078 |
Non-inoculated controls | 0.012 ± 0.007 | |
Spraying (PMMoV) † | ||
PMMoV IR 54 (0 day) | R 5/5 | 0.004 ± 0.002 |
PMMoV IR 54 (1 day) | R 5/5 | 0.009 ± 0.003 |
PMMoV IR 54 (3 days) | R 5/5 | 0.011 ± 0.010 |
PMMoV IR 54 (5 days) | R 18/18 | 0.015 ± 0.012 |
PMMoV IR 54 (7 days) | R 1/5 | 0.012 |
S 4/5 | 1.360 ± 0.141 | |
HT115 (5 days) | S 10/10 | 1.420 ± 0.121 |
Non-inoculated controls | 0.010 ± 0.009 | |
Spraying (PPV) ‡ | ||
HT115 | S 7/7 | 1.042 ± 0.260 |
PPV HC dsRNA | R 11/12 | 0.004 ± 0.008 |
S 1/12 | 0.278 | |
Non-inoculated controls | 0.008 ± 0.003 |