当前位置: X-MOL 学术J. Plant Pathol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Postharvest application of partitioned plant extracts from Sinaloa, Mexico for controlling papaya pathogenic fungus Colletotrichum gloeosporioides
Journal of Plant Pathology ( IF 2.2 ) Pub Date : 2021-04-20 , DOI: 10.1007/s42161-021-00838-w
Jordi G. López-Velázquez , Francisco Delgado-Vargas , Lidia E. Ayón-Reyna , Gabriela López-Angulo , Silvia Bautista-Baños , Yesenia G. Uriarte-Gastelum , Martha E. López-López , Misael O. Vega-García

Anthracnose compromises papaya production and is caused by the fungus Colletotrichum gloeosporioides. New natural alternatives to synthetic fungicides are necessary to control anthracnose due to health and environmental concerns. In this regard, extracts of plants from Sinaloa, Mexico, have shown activity against molds and yeasts with medical and agricultural importance; however, their protective effect on papaya fruit infected with C. gloeosporioides is still unknown. This study aimed to assess the in vitro and in vivo antifungal activities of crude methanol extracts (ME) from nine plants from Sinaloa, Mexico, and their semi-purified fractions. In vitro assays showed that C. gloeosporioides was inhibited by 7 out the 16 extracts assessed; Psidium sartorianum (pulp), Echeveria kimnachii (leaf), and Vitex mollis (VM) (pulp) had the highest antifungal activity and the lowest toxicity against Artemia salina. When these extracts were fractionated, the activity increased. Hexane (HF-VM) and ethyl acetate (EAF-VM) fractions of V. mollis were the most effective fractions (MEF), with the lowest minimum inhibitory concentration (MIC) (20 and 30 mg/mL, respectively). The in vivo results showed that HF-VM at 40 mg/mL (HF40) was the best to delay the apparition and development of anthracnose symptoms. Coumarins, alkaloids and terpenes were detected on this fraction by tube assays or thin layer chromatography (TLC). Moreover, this treatment decreased water loss and did not affect any of the quality parameters assessed. Therefore, HF40 is a natural alternative to thiabendazole (TBZ) in the protection of papaya fruit against anthracnose.



中文翻译:

墨西哥锡那罗亚州分区植物提取物在收获后的应用,以控制木瓜致病真菌炭疽菌

炭疽病危害木瓜的生产,是由真菌Colletotrichum gloeosporioides引起的。由于对健康和环境的关注,合成杀真菌剂的新的天然替代品对于控制炭疽病是必要的。在这方面,墨西哥锡那罗亚州的植物提取物已显示出对具有医学和农业重要性的霉菌和酵母菌的活性;然而,它们对被球孢梭菌感染的木瓜果实的保护作用仍是未知的。这项研究旨在评估来自墨西哥锡那罗亚州的九种植物的粗甲醇提取物(ME)及其半纯化馏分的体外和体内抗真菌活性。体外试验表明,所评估的16种提取物中有7种抑制了球形孢梭菌的抑制。肉毒杆菌(P浆),纸ch(Echeveria kimnachii)(叶),Vitex mollis(VM)(纸浆)具有最高的抗真菌活性,并且对盐卤的毒性最低。当这些提取物被分级分离时,活性增加。软体动物的己烷(HF-VM)和乙酸乙酯(EAF-VM)馏分是最有效的馏分(MEF),最低抑菌浓度(MIC)最低(分别为20和30 mg / mL)。体内结果表明,以40 mg / mL的HF-VM(HF40)延迟炭疽病症状的出现和发展是最好的。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。当这些提取物被分级分离时,活性增加。软体动物的己烷(HF-VM)和乙酸乙酯(EAF-VM)馏分是最有效的馏分(MEF),最低抑菌浓度(MIC)最低(分别为20和30 mg / mL)。体内结果表明,以40 mg / mL的HF-VM(HF40)延迟炭疽病症状的出现和发展是最好的。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。当这些提取物被分级分离时,活性增加。软体动物的己烷(HF-VM)和乙酸乙酯(EAF-VM)馏分是最有效的馏分(MEF),最低抑菌浓度(MIC)最低(分别为20和30 mg / mL)。体内结果表明,以40 mg / mL的HF-VM(HF40)延迟炭疽病症状的出现和发展是最好的。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。mollis是最有效的馏分(MEF),最低最小抑菌浓度(MIC)(分别为20和30 mg / mL)。体内结果表明,以40 mg / mL的HF-VM(HF40)延迟炭疽病症状的出现和发展是最好的。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。mollis是最有效的馏分(MEF),最低最小抑菌浓度(MIC)(分别为20和30 mg / mL)。体内结果表明,以40 mg / mL的HF-VM(HF40)延迟炭疽病症状的出现和发展是最好的。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。通过试管分析或薄层色谱法(TLC)在该级分上检测出香豆素,生物碱和萜烯。而且,这种处理减少了水分流失,并且不影响所评估的任何质量参数。因此,在保护木瓜果实免受炭疽病危害方面,HF40是噻苯达唑(TBZ)的天然替代品。

更新日期:2021-04-20
down
wechat
bug