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Nematode development and changes in enzymatic defensive activityin rice plants upon Meloidogyne graminicola infectionfor preliminary screening of resistant cultivars |
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| รหัสดีโอไอ | |
| Creator | 1. Natthidech Beesa 2. Kansiree Jindapunnapat 3. Buncha Chinnasri 4. Thanunchanok Chairin |
| Title | Nematode development and changes in enzymatic defensive activityin rice plants upon Meloidogyne graminicola infectionfor preliminary screening of resistant cultivars |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2022 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 44 |
| Journal No. | 1 |
| Page no. | 26-31 |
| Keyword | Oryza sativa L., plant defense-related enzymes, rice resistance, RD6, root-knot nematodes |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Root-knot nematode (RKN) has been reported to damage various rice cultivars in many countries. This study wasconducted to evaluate the resistant levels of rice to M. graminicola infection. Each plant was inoculated with 100 second stagejuveniles of RKN and their resistance was checked 15 days post inoculation. The result showed that among all six evaluated ricecultivars, RD6 exhibited the highest resistance against RKN by showing the lowest of gall numbers and gall index. Moreover, itis demonstrated that high resistance of RD6 cultivar was correlated with increasing defensive enzyme activities of PAL, PPO andPOD during early inoculation. In contrast, KDML105 was the most susceptible cultivar, showing the greatest gall numbers andpercentage of females inside rice roots. In addition, defensive enzyme activities were not significantly different from control (uninoculation). Therefore, RD6 cultivar might be useful for the breeding program to control RKN in further studies. |
