Induction of Systemic Resistance in Tomato (Solanum lycopersicom L.) Against Damping-off Disease by Using a Mixture of Mycorrhizae

Q4 Agricultural and Biological Sciences
Mohamad Imad Khrieba, M. F. Azmeh, Wafaa Chouman, I. Ghazal, Ahmad Ali
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引用次数: 0

Abstract

Khrieba, M.I., M.F. Azmeh, W. Chouman, I. Ghazal, and A.K. Ali. 2021. Induction of Systemic Resistance in Tomato (Solanum lycopersicom L.) Against Damping-off Disease by Using a Mixture of Mycorrhizae. Arab Journal of Plant Protection, 39(1): 61-68. The effect of vesicular-arbuscular mycorrhiza (VAM) in improving the activity of the enzyme peroxidase and its role in controlling tomato damping-off caused by Pythium ultimum was studied in a pot experiment during the 2013 growing season. Five treatments were compared with a non-treated control (C): in treatment 1, soil was infested only with Pythium (Py), in treatment 2, soil was infested with mycorrhiza only (My), in treatment 3 soil was infested with Pythium and mycorrhiza at sowing (My+Py), in treatment 4, soil was infested with Pythium and two weeks after sowing with Mycorrhiza (Py-My) and in treatment 5, soil was infested with mycorrhiza and two weeks after sowing with Pythium (My-Py). The results showed that peroxidase concentration in plant tissues 14 days after seed germination in the My treatment (361.91 μmole/mg) significantly exceeded the other treatments. In the treatment where mycorrhiza was added before the pathogen 67 Arab J. Pl. Prot. Vol. 39, No. 1 (2021) peroxidase activity reached 183.73 μmole/mg, which was 41% significantly higher than the My+Py treatment in which the pathogen and mycorrhizal inoculant were added together at sowing (108.27 μmole/mg). The peroxidase concentration increased significantly 28 days after seed germination in the My treatment (687.52 μmole/mg) as compared with the Py treatment (10.52 μmole/mg). Results also showed that in the treatment My-Py, where the mycorrhyzal inoculum was added before the pathogen, peroxidase activity (458.27 μmole/mg) was significantly higher than in the treatment Py+My, when the pathogen was added simultaneously with the vesicular-arbuscular mycorrhizal inoculum (98.67 μmole/mg). Furthermore, results showed that 35 days after seed germination, the enzyme concentration was significantly higher in the My-Py treatment (763.39 μmole/mg) as compared with My+Py treatment (143.5 μmole/mg). Keywords: Vesicular-arbuscular mycorrhiza, VAM, Pythium ultimum, peroxidase, tomato, Syrian coast, induced resistance.
混合菌根诱导番茄系统抗病性的研究
Khrieba, M.I. f . Azmeh, W. Chouman, I. Ghazal和A.K. Ali. 2021。番茄(Solanum lycopersicom L.)系统抗性诱导用菌根混合剂防治湿化病。植物保护学报,39(1):61-68。在2013年番茄生长季进行盆栽试验,研究了囊状丛枝菌根(VAM)对番茄过氧化物酶活性的改善作用及其防治霉病的作用。将5个处理与未处理对照(C)进行比较:处理1土壤仅侵染菌(Py),处理2土壤仅侵染菌(My),处理3播种时侵染菌和菌根(My+Py),处理4播种后2周侵染菌根(Py-My),处理5播种后2周侵染菌根(My-Py)。结果表明:种子萌发后14 d, My处理的植物组织中过氧化物酶浓度(361.91 μmol /mg)显著高于其他处理;病原菌前加菌根的处理[j]。Vol. 39 No. 1(2021)过氧化物酶活性达到183.73 μmol /mg,比播种时同时添加病原菌和菌根接种剂的My+Py处理(108.27 μmol /mg)显著提高41%。种子萌发28 d后,My处理的过氧化物酶浓度(687.52 μmol /mg)显著高于Py处理(10.52 μmol /mg)。结果还表明,先添加菌根菌量的My-Py处理的过氧化物酶活性(458.27 μmol /mg)显著高于同时添加囊状-丛枝菌根菌量(98.67 μmol /mg)的Py+My处理。结果表明,种子萌发35 d后,My-Py处理的酶浓度(763.39 μmol /mg)显著高于My+Py处理(143.5 μmol /mg)。关键词:囊状-丛枝菌根,VAM,最后草,过氧化物酶,番茄,叙利亚海岸,诱导抗性。
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来源期刊
Arab Journal of Plant Protection
Arab Journal of Plant Protection Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
0.40
自引率
0.00%
发文量
12
期刊介绍: The Arab Journal of Plant Protection is an open access journal included in CABI, AGRIS and Google Scholar data bases and indexed by Scopus. The journal’s aim is the promotion of plant health for crops grown in the Arab and Near East region and for safe food production and transfer of new knowledge on plant pests and their sustainable management. The journal deals with all scientific
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