生物防治产品 Esquive® WP 使用 6 年后对本地葡萄树木材微生物群的影响

IF 4.2 2区 生物学 Q2 MICROBIOLOGY Journal of Fungi Pub Date : 2024-08-11 DOI:10.3390/jof10080566
Amira Yacoub, David Renault, Rana Haidar, Florian Boulisset, Patricia Letousey, Rémy Guyoneaud, Eleonore Attard, Patrice Rey
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引用次数: 0

摘要

葡萄树干病害(GTDs)目前正在限制全球许多葡萄园的葡萄产量。由于目前还没有注册用于控制 GTD 的化学处理剂,因此正在对生物控制剂进行测试,以防治这些病害。Esquive® WP 以毛霉 I-1237 菌株为基础,是首个在法国注册的用于控制 GTD 的生物防治产品。在这项研究中,我们要确定在使用 Esquive® WP 处理葡萄树修剪伤口后,葡萄树木质部定殖的本地微生物群落是否发生了变化。在 6 年的时间里,我们每年都对位于三个不同地区的三个葡萄栽培品种的修剪伤口施用 Esquive® 可湿性粉剂。在 Esquive® WP 处理后 2 个月和 10 个月收集木材样本。根据 MiSeq 高通量测序分析,结果显示特定微生物群落与每个 "地区/栽培品种 "配对相关。在某些情况下,经过 Esquive® WP 处理的葡萄树和未经过 Esquive® WP 处理的葡萄树在 2 个月后,α-多样性指数和某些微生物类群的相对丰度发生了显著变化。然而,随着时间的推移,即处理后 10 个月,这些变化消失了。这一结果清楚地表明,Esquive® WP 可湿性粉剂修剪木处理并没有引起葡萄树木微生物群的显著变化,即使在对植物反复施用 6 年之后也是如此。
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Impact of the Biocontrol Product, Esquive® WP, on the Indigenous Grapevine Wood Microbiome after a 6-Year Application Period
Grapevine trunk diseases (GTDs) are currently limiting grapevine productivity in many vineyards worldwide. As no chemical treatments are registered to control GTDs, biocontrol agents are being tested against these diseases. Esquive® WP, based on the fungus Trichoderma atroviride I-1237 strain, is the first biocontrol product registered in France to control GTDs. In this study, we determine whether, following grapevine pruning wound treatments with Esquive® WP, changes occurred or not in the indigenous microbial communities that are colonizing grapevine wood. Over a 6-year period, Esquive® WP was applied annually to pruning wounds on three grapevine cultivars located in three different regions. Wood samples were collected at 2 and 10 months after the Esquive® WP treatments. Based on MiSeq high-throughput sequencing analyses, the results showed that specific microbial communities were linked to each ‘region/cultivar’ pairing. In certain cases, a significant modification of alpha diversity indexes and the relative abundance of some microbial taxa were observed between treated and non-treated grapevines 2 months after Esquive® WP treatment. However, these modifications disappeared over time, i.e., 10 months post-treatment. This result clearly showed that Esquive® WP pruning wood treatment did not induce significant changes in the grapevine wood’s microbiome, even after 6 years of recurrent applications on the plants.
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来源期刊
Journal of Fungi
Journal of Fungi Medicine-Microbiology (medical)
CiteScore
6.70
自引率
14.90%
发文量
1151
审稿时长
11 weeks
期刊介绍: Journal of Fungi (ISSN 2309-608X) is an international, peer-reviewed scientific open access journal that provides an advanced forum for studies related to pathogenic fungi, fungal biology, and all other aspects of fungal research. The journal publishes reviews, regular research papers, and communications in quarterly issues. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on paper length. Full experimental details must be provided so that the results can be reproduced.
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