| 大蒜根系分泌物对烟草镰刀菌根腐病的控制作用 |
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| 引用本文： | 吴晓婷,赖荣泉,米月娥,顾钢,张榜,王巧妮.大蒜根系分泌物对烟草镰刀菌根腐病的控制作用[J].中国生物防治学报,2021,37(3):555-563. |
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| 作者姓名： | 吴晓婷 赖荣泉 米月娥 顾钢 张榜 王巧妮 |
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| 作者单位： | 1. 闽台作物有害生物生态防控国家重点实验室/福建农林大学植物保护学院, 福州 350002;2. 中国烟草总公司福建省公司, 福州 350003 |
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| 基金项目： | 福建省自然科学基金（2017J01617，2020J01523）；福建农林大学科技创新基金（2021-2022）；中国国家留学基金项目（202008350060） |
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| 摘 要： | 为探讨大蒜根系分泌物对烟草尖孢镰刀菌的抑菌活性，采用琼脂法培养大蒜，利用气相色谱—质谱技术（GC-MS）测定其主要成分，研究大蒜根系分泌物对烟草尖孢镰刀菌根腐病的影响。对菌丝生长速率和孢子萌发的测定表明，当大蒜根系分泌物粗提物浓度为1 g/mL时，其菌丝生长抑制率为30.56%，孢子萌发抑制率高达100.00%。大蒜根系分泌物主要成份2，6—二异丙基苯酚和邻苯二甲酸二丁酯分别对其菌丝生长和孢子萌发具有较强的抑菌作用。邻苯二甲酸二丁酯的防控效果较好，其浓度为5 mmol/L，接菌21 d后其病情指数为55.00，防控效果达32.38%。大蒜根系分泌物及主要成分对尖孢镰刀菌所引起的烟草根腐病有显著的抑制作用，这为研制含大蒜成分的植物保护剂和间作套种大蒜防控烟草尖孢镰刀菌根腐病提供科学参考。
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| 关 键 词： | 大蒜根系分泌物 烟草镰刀菌根腐病 抑菌作用 控制效果 |
| 收稿时间： | 2020-10-10 |
Control Effects of Garlic Root Exudates on Fusarium oxysporum Root Rot of Tobacco |
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| WU Xiaoting,LAI Rongquan,MI Yuee,GU Gang,ZHANG Bang,WANG Qiaoni.Control Effects of Garlic Root Exudates on Fusarium oxysporum Root Rot of Tobacco[J].Chinese Journal of Biological Control,2021,37(3):555-563. |
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| Authors: | WU Xiaoting LAI Rongquan MI Yuee GU Gang ZHANG Bang WANG Qiaoni |
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| Institution: | 1. State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China;2. Fujian Province Corporation of China National Tobacco Corporation, Fuzhou 350003, China |
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| Abstract: | To investigate the antifungal activity of the garlic root exudates against Fusarium oxysporum, garlic root exudates were cultured on solid agar, and their main components were determined by gas chromatography- mass spectrometry (GC?MS). Studies on mycelial growth rate and spore germination showed that the inhibition rate of mycelial growth was 30.56%, and the inhibition rate of spore germination of 1 g/mL garlic root exudates was as high as 100.00%. 2,6?diisopropyl phenol and dibutyl phthalate of the main components of garlic root exudates had the highest inhibitory effects on the mycelial growth and spore germination of F. oxysporum. The control effect of dibutyl phthalate was better, after 21 days of inoculation, the disease index was 55.00 at a concentration of 5 mmol/L, and the control effect was as high as 32.38%. The garlic root exudates and its main components had significant inhibitory effects against F. oxysporum. This provides a scientific reference for the development of plant protectants containing garlic and intercropping garlic to control tobacoo Fusarium root rot. |
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| Keywords: | garlic root exudates Fusarium oxysporum root rot of tobacco antifungal activities control effects |
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