植物化学物质降低玉米中伏马菌素污染的原因——黄萎病病菌的生长、产孢和分生孢子尺寸

Q1 Immunology and Microbiology

Biotechnology Reports Pub Date : 2023-10-30 DOI:10.1016/j.btre.2023.e00819

Habtamu Terefe , Getnet Yitayih , Getachew G. Mengesha

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引用次数: 0

摘要

本研究的目的是评价植物甲醇提取物对黄萎病镰刀菌径向生长和孢子大小的影响。对25种植物的叶提取物进行了抑菌试验。其中13种提取物对真菌有较强的抑制作用，并采用食物中毒技术进行了评价。在以5 mg ml-1添加提取物的PDA培养基上观察生长情况。对照处理包括不含(阴性)提取物和含(阳性)合成杀菌剂的培养皿。采用PDB法测定孢子尺寸。结果表明，赤芍提取物对真菌菌丝生长的抑制作用与杀菌剂相当。同样，parviflora、C. citratus、R. officinalis、R. chalepensis和龙舌兰(Agave)在第7天也记录了71.04 ~ 81.35%的生长下降。此外，龙舌兰、柑橘和金菖蒲提取物不支持产孢。综上所述，淫羊藿提取物可作为防治黄萎病的安全的生物活性物质来源。

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Phytochemicals reduced growth, sporulation and conidial dimensions of Fusarium verticillioides, cause of fumonisin contamination in maize grains

The objective of the study was to evaluate the effectiveness of methanolic extracts of plants against radial growth and spore dimensions of Fusarium verticillioides. Leaf extracts of 25 plants were tested against the fungus. Of which, thirteen extracts were potent against the fungus and evaluated using food poising technique. Growth was evaluated on PDA medium amended with the extracts at 5 mg ml^–1. Control treatments included plates without (negative) extracts and with synthetic (positive) fungicide. Spore dimension was determined using PDB. The results showed T. vulgaris extract completely inhibited mycelial growth of the fungus as equivalent as the fungicide. Similarly, G. parviflora, C. citratus, R. officinalis, R. chalepensis, and Agave sp. also recorded growth reductions ranging from 71.04 to 81.35 % at day seven. In addition, extracts of Agave sp., C. citratus and T. vulgaris did not support sporulation. Overall, the results indicate that T. vulgaris extracts could be safe source of bioactive chemicals to control F. verticillioides.

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来源期刊

Biotechnology Reports Immunology and Microbiology-Applied Microbiology and Biotechnology

CiteScore

15.80

自引率

0.00%

发文量

审稿时长

55 days

期刊介绍： Biotechnology Reports covers all aspects of Biotechnology particularly those reports that are useful and informative and that will be of value to other researchers in related fields. Biotechnology Reports loves ground breaking science, but will also accept good science that can be of use to the biotechnology community. The journal maintains a high quality peer review where submissions are considered on the basis of scientific validity and technical quality. Acceptable paper types are research articles (short or full communications), methods, mini-reviews, and commentaries in the following areas: Healthcare and pharmaceutical biotechnology Agricultural and food biotechnology Environmental biotechnology Molecular biology, cell and tissue engineering and synthetic biology Industrial biotechnology, biofuels and bioenergy Nanobiotechnology Bioinformatics & systems biology New processes and products in biotechnology, bioprocess engineering.