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Effect of Ralstonia solanacearum and Meloidogyne javanica on tomato plant antioxidant activity | ||
| Journal of Advances in Plant Protection | ||
| دوره 1، شماره 1، شهریور 2024، صفحه 33-40 اصل مقاله (857.44 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22103/japp.2024.23138.1002 | ||
| نویسندگان | ||
| Masoumeh Panahi؛ Rasool Rezaei* ؛ Habiballah Charehgani | ||
| Department of Plant Protection, College of Agriculture, Yasouj University, Yasouj, Iran. | ||
| چکیده | ||
| Meloidogyne javanica and Ralstonia solanacearum are the highly specialized soil-born plant parasites with economic importance causing root-knot and bacterial wilt diseases in tomatoes, respectively. The occurrence and intensity of the bacterial wilt escalated in the presence of root-knot nematodes and R. solanacearum concurrently detected in different vegetable crops. Sampling and preparation of leaf extract were done to investigate the activity of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POX) enzymes at 24, 48, 72, and 120 hours post-inoculation (hpi) of tomato plants with R. solanacearum and M. javanica. The enzyme activity was measured at each time interval. The CAT and SOD enzymes exhibited maximum activity levels at 120 and 48 hpi in the nematode treatment, respectively. Meanwhile, the levels of POX enzyme peaked at 48 and 72 hpi in the nematode and nematode-bacterium treatments, respectively. Pathogen stress eventually led to a decrease in the SOD and POX enzymes 120 hours after inoculation and a significant increase in CAT during nematode-bacterium treatment. The results revealed apparent enzyme activity variations in tomato plants infected with both pathogens at different time intervals after inoculation. | ||
| کلیدواژهها | ||
| Bacterial wilt؛ Enzyme activity؛ Interaction؛ Root-knot nematode | ||
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آمار تعداد مشاهده مقاله: 248 تعداد دریافت فایل اصل مقاله: 142 |
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