رسالة جامعية
The Heterobasidion conifer pathosystem: microbiome and bioprospecting of antagonists
| العنوان: | The Heterobasidion conifer pathosystem: microbiome and bioprospecting of antagonists |
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| المؤلفون: | Ren, Wenzi |
| المساهمون: | Casero, Julio Javier Diez, Asiegbu, Fred, Wang, Kai, Helsingin yliopisto, maatalous-metsätieteellinen tiedekunta, Uusiutuvien luonnonvarojen kestävän käytön tohtoriohjelma, Helsingfors universitet, agrikultur-forstvetenskapliga fakulteten, Doktorandprogrammet i hållbart utnyttjande av förnybara naturresurser, University of Helsinki, Faculty of Agriculture and Forestry, Doctoral Programme in Sustainable Use of Renewable Natural Resources |
| بيانات النشر: | Helsingin yliopisto Helsingfors universitet University of Helsinki |
| سنة النشر: | 2024 |
| المجموعة: | Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
| مصطلحات موضوعية: | molecular Forest Pathology |
| الوصف: | Coniferous forests are crucial for the planet, with their worldwide distribution and enormous economic and ecological values. Despite their global spread and adaptability, conifers have faced several challenges due to biotic and abiotic environmental stressors. One of the major biotic pathogens is Heterobasidion annosum s. l., the causative agent of root and stem rot disease. The economic damage caused by Heterobasidion is estimated at €800 million in Europe annually. Over the years, the disease has been managed using silviculture, chemical, and biological approaches. Unfortunately, there is no 100% protection, and all the methods have defects or potential risks. Thus, new solutions need to be explored. Understanding and manipulation of the microbiome inhabiting the conifer host and the Heterobasidion pathosystem could provide new insight for troubleshooting and is considered to have huge potential. The aims of this study were to investigate the bacterial and fungal community assembly and structure in the Heterobasidion-conifer pathosystem and to highlight the key factors driving microbial community development. Two sets of materials were studied: the Heterobasidion fruiting body and its associated wood of four different decay classes as well as the associated forest soil. Heterobasidion-infected wood samples were collected from managed and unmanaged forest sites in southern Finland. In addition, microbiome of Norway spruce seedling needles with different levels of resistance to Heterobasidion infection were also studied. The results revealed that the bacterial and fungal communities inhabiting Heterobasidion fruiting bodies and associated decayed wood and soil materials were not influenced by the decay process. However, the communities were highly dynamic, and the abundance, functions, and ecological correlation networks of the operational taxonomic units (OTUs: clusters of sequencing reads that differ by less than 3% dissimilarity threshold) frequently changed during the decay process. The third decay class ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 978-951-51-9696-5 978-951-51-9695-8 951-51-9696-5 951-51-9695-7 |
| تدمد: | 2954-2952 |
| العلاقة: | URN:ISBN:978-951-51-9696-5; 2024; Helsinki: Helsingin yliopisto, 2024, Dissertationes Universitatis Helsingiensis. 2954-2898; Dissertationes Universitatis Helsingiensis; URN:ISSN:2954-2952; URN:ISBN:978-951-51-9695-8; http://hdl.handle.net/10138/572515Test |
| الإتاحة: | http://hdl.handle.net/10138/572515Test |
| حقوق: | Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. ; This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. ; Publikationen är skyddad av upphovsrätten. Den får läsas och skrivas ut för personligt bruk. Användning i kommersiellt syfte är förbjuden. |
| رقم الانضمام: | edsbas.4DB62FA0 |
| قاعدة البيانات: | BASE |
| ردمك: | 9789515196965 9789515196958 9515196965 9515196957 |
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| تدمد: | 29542952 |