Medicinal Plants as Biocontrol Agents: An In Vitro Study on Black Rot Pathogen of Cabbage (Xanthomonas campestris pv. campestris)

IF 2.1 Q2 PLANT SCIENCES

Acta Agrobotanica Pub Date : 2022-11-23 DOI:10.5586/aa.759

Ashiya Akter Sumi, A. Khayer, P. K. Jhan, M. H. Rubel

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引用次数: 1

Abstract

Black rot in cabbage caused by Xanthomonas campestris pv. campestris is the most common yield-limiting and damaging disease affecting crucifers. The application of chemicals has hazardous effects on the soil and environment. To test bio-based alternatives for chemicals, extracts of 10 medicinal plants (royal poinciana, ivy gourd, sisso, bougainvillea, mint, devil’s cotton, drumstick, false daisy, asthma plant, and mimosa) were tested for their antibacterial effects against Xanthomonas campestris pv. campestris . The extracts were prepared in distilled water and ethanol at two concentrations, 25% and 50%. The extracts were applied, and a standard antibiotic disk (streptomycin 10 µg/disc) was used to evaluate the antibacterial activities. In the present study, antibacterial screening using the disk diffusion method revealed that both the aqueous and ethanol extracts of seven plant samples: royal poinciana, ivy gourd, sisso, bougainvillea, mint, devil cotton, and drumstick, showed significant activity, while extracts (aqueous and ethanol) of false daisy, asthma plant, and mimosa showed weak inhibitory effects against the tested bacteria. For both aqueous and ethanol extracts, antibacterial effects were higher at 50% concentration.

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药用植物作为生物防治剂：甘蓝黑腐病病原的体外研究

白菜黄单胞菌引起的黑腐病。油菜是影响十字花科植物产量的最常见的病害。化学品的使用对土壤和环境有有害影响。为了测试基于生物的化学品替代品，测试了10种药用植物（一品红、常青藤、剑麻、三角梅、薄荷、魔鬼棉、鸡腿、假雏菊、哮喘植物和含羞草）的提取物对黄单胞菌pv的抗菌作用。campestris。提取物在蒸馏水和乙醇中以25%和50%两种浓度制备。应用提取物，并使用标准抗生素盘（链霉素10µg/盘）来评估抗菌活性。在本研究中，使用圆盘扩散法进行的抗菌筛选显示，七种植物样品：皇家一品红、常青藤、剑麻、九重葛、薄荷、魔鬼棉和鸡腿的水提取物和乙醇提取物都显示出显著的活性，而假菊花、哮喘植物、，含羞草对试验菌的抑制作用较弱。对于水提取物和乙醇提取物，50%浓度时的抗菌效果更高。

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来源期刊

Acta Agrobotanica Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.90

自引率

25.00%

发文量

审稿时长

16 weeks

期刊介绍： The Acta Agrobotanica publishes mainly significant, original research papers presenting the results new to the biology of cultivable or wild plants accompanying crops. The submissions dedicated particularly to flora and phytocenoses of anthropogenically transformed areas, bee pastures, nectariferous and polleniferous taxa, plant-pollinator relationships, urban and rural habitats for entomofauna, cultivated plants, weeds, aerobiology, plant pathogens and parasites are encouraged and accepted. Besides the original research papers, authors may submit short communications and reviews. The journal also publishes the invited papers in case of new developments in plant science. All submissions must be written in good English, which is solely a responsibility of the authors.