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环孢菌素是由sp. OR6产生的针对. 的主要生物活性抗真菌化合物。 （注：原文中“. ”部分表述不完整，可能影响准确理解。）

Albocycline Is the Main Bioactive Antifungal Compound Produced by sp. OR6 against .

作者信息

Calvo-Peña Carla, Cobos Rebeca, Sánchez-López José María, Ibañez Ana, Coque Juan José R

机构信息

Instituto de Investigación de la Viña y el Vino, Escuela de Ingeniería Agraria, Universidad de León, 24009 León, Spain.

Biomar Microbial Technologies, Armunia, 24009 León, Spain.

出版信息

Plants (Basel). 2023 Oct 18;12(20):3612. doi: 10.3390/plants12203612.

DOI:10.3390/plants12203612
PMID:37896074
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10610244/
Abstract

Verticillium wilt is a soil-borne fungal disease that affects olive trees () and poses a serious threat to their cultivation. The causal agent of this disease is , a pathogen that is difficult to control with conventional methods. Therefore, there is a need to explore alternative strategies for the management of Verticillium wilt. In this study, we aimed to isolate and characterize actinobacteria from the rhizosphere of olive trees that could act as potential biocontrol agents against . We selected a sp. OR6 strain based on its in vitro antifungal activity and its ability to suppress the pathogen growth in soil samples. We identified the main active compound produced by this strain as albocycline, a macrolide polyketide with known antibacterial properties and some antifungal activity. Albocycline was able to efficiently suppress the germination of conidiospores. To our knowledge, this is the first report of albocycline as an effective agent against . Our results suggest that sp. OR6, or other albocycline-producing strains, could be used as a promising tool for the biological control of Verticillium wilt.

摘要

黄萎病是一种影响橄榄树的土传真菌病害，对其种植构成严重威胁。这种病害的病原体是 ，一种难以用传统方法控制的病原菌。因此，需要探索管理黄萎病的替代策略。在本研究中，我们旨在从橄榄树的根际分离和鉴定放线菌，这些放线菌可作为对抗 的潜在生物防治剂。我们基于其体外抗真菌活性及其抑制土壤样品中病原菌生长的能力，选择了 sp. OR6菌株。我们鉴定出该菌株产生的主要活性化合物为阿博环素，一种具有已知抗菌特性和一些抗真菌活性的大环内酯聚酮化合物。阿博环素能够有效抑制分生孢子的萌发。据我们所知，这是关于阿博环素作为对抗 的有效药剂的首次报道。我们的结果表明， sp. OR6或其他产生阿博环素的菌株可作为黄萎病生物防治的有前途的工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/fa424e6d8f5a/plants-12-03612-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/cca784689490/plants-12-03612-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/f8611bd56af5/plants-12-03612-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/16da0a9b93d6/plants-12-03612-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/9b2e19846122/plants-12-03612-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/4bf2e4ef7f8d/plants-12-03612-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/9be48a75b0c3/plants-12-03612-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/fa424e6d8f5a/plants-12-03612-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/cca784689490/plants-12-03612-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/f8611bd56af5/plants-12-03612-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/16da0a9b93d6/plants-12-03612-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/9b2e19846122/plants-12-03612-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/4bf2e4ef7f8d/plants-12-03612-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/9be48a75b0c3/plants-12-03612-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9756/10610244/fa424e6d8f5a/plants-12-03612-g007.jpg

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