Endophytic Metarhizium anisopliae isolates suppress two-spotted spider mite population and black leaf spot disease while enhancing tomato plant growth

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2024-10-22 DOI:10.1016/j.cropro.2024.106994

Seyed Ali Safavi , Seyedeh Reyhaneh Golzan , Sina Mesri-Ghahramanloo , J.P. Michaud

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Abstract

The entomopathogenic fungus Metarhizium anisopliae (Metchn.) Sorokin can grow endophytically in crops such as tomato, often inhibiting the growth of pests and diseases. Different isolates of M. anisopliae vary in their protective properties and require careful assessment prior to their use in any application. We evaluated isolates WEU01 and WEU02 of M. anisopliae for their ability to colonize tomato plants, promote plant growth, suppress spider mites, and inhibit black spot infections caused by Alternaria alternata. Both fungal isolates grew systemically within tomato plants, persisted in plant vegetative tissues for up to eight weeks, reduced spider mite populations, and were antagonistic to A. alternata in vitro and in planta. After four weeks, endophytic M. anisopliae positively affected leaf area, leaf number, stem length, stem diameter, dry weight, and chlorophyl content. These results illustrate the potential benefits of endophytic M. anisopliae for biological control of pests and diseases on tomato.

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内生 Metarhizium anisopliae 分离物抑制二斑蛛螨数量和黑叶斑病，同时促进番茄植株生长

昆虫病原真菌 Metarhizium anisopliae (Metchn.) Sorokin 可在番茄等作物中内生生长，通常可抑制病虫害的生长。不同的 M. anisopliae 分离物具有不同的保护特性，在任何应用中使用之前都需要对其进行仔细评估。我们评估了 M. anisopliae 的分离物 WEU01 和 WEU02 在番茄植株上的定殖能力、促进植株生长的能力、抑制蜘蛛螨的能力，以及抑制由 Alternaria alternata 引起的黑斑病感染的能力。这两种真菌分离物在番茄植株内系统生长，在植株无性组织中存活长达八周，减少了蜘蛛螨的数量，并在体外和植物体内对交替孢霉具有拮抗作用。四周后，内生 M. anisopliae 对叶面积、叶片数、茎长、茎直径、干重和叶绿素含量有积极影响。这些结果说明了内生 M. anisopliae 对番茄病虫害生物防治的潜在益处。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.