Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication
Allanblackia is a tree genus native to humid forests in West, Central and East Africa. Its fruits contain large seeds from which edible high-quality fat can be extracted. In order to create a sustainable supply chain of Allanblackia seeds, a domestication program has been initiated with the purpose...
| Autor principal: | |
|---|---|
| Formato: | H2 |
| Lenguaje: | Inglés sueco |
| Publicado: |
SLU/Dept. of Forest Mycology and Plant Pathology
2013
|
| Materias: |
| _version_ | 1855570923755667456 |
|---|---|
| author | Ström, Helena |
| author_browse | Ström, Helena |
| author_facet | Ström, Helena |
| author_sort | Ström, Helena |
| collection | Epsilon Archive for Student Projects |
| description | Allanblackia is a tree genus native to humid forests in West, Central and East Africa. Its fruits contain large seeds from which edible high-quality fat can be extracted. In order to create a sustainable supply chain of Allanblackia seeds, a domestication program has been initiated with the purpose to enable smallholder farmers to grow the tree as an agroforestry component and cash crop. More knowledge is required to understand the tree’s biology and possible symbioses involving soil microorganisms with plant growth enhancing poten-tial. This is the first study to report on mycorrhizal associations and the fungal community of Allanblackia stuhlmannii, a species indigenous to Tanzania. The aim was to examine whether trees can form arbuscular mycorrhiza (AM), the dominant type of mycorrhiza in tropical ecosystems formed by members of the fungal phyla Glomeromycota. In total 50 samples from seedlings and older trees were included in the study. AM structures, e.g. vesicles and potential arbuscules, were observed using microscopy. A large number of possible AM symbionts were also identified by molecular analysis, as well as fungi be-longing to Ascomycota and Basidiomycota. These results suggest that A. stuhlmannii is able to form arbuscular mycorrhiza, potentially with a wide range of fungal species. How-ever, it remains to clarify to what extent the growth of Allanblackia is benefiting from the association, as well as identify the key fungal species. |
| format | H2 |
| id | RepoSLU5908 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2013 |
| publishDateSort | 2013 |
| publisher | SLU/Dept. of Forest Mycology and Plant Pathology |
| publisherStr | SLU/Dept. of Forest Mycology and Plant Pathology |
| record_format | eprints |
| spelling | RepoSLU59082013-09-11T07:11:04Z Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication Ström, Helena Allanblackia stuhlmannii Symbionts Arbuscular mycorrhizal fungi Tree domestication East Usambara Mountains Allanblackia is a tree genus native to humid forests in West, Central and East Africa. Its fruits contain large seeds from which edible high-quality fat can be extracted. In order to create a sustainable supply chain of Allanblackia seeds, a domestication program has been initiated with the purpose to enable smallholder farmers to grow the tree as an agroforestry component and cash crop. More knowledge is required to understand the tree’s biology and possible symbioses involving soil microorganisms with plant growth enhancing poten-tial. This is the first study to report on mycorrhizal associations and the fungal community of Allanblackia stuhlmannii, a species indigenous to Tanzania. The aim was to examine whether trees can form arbuscular mycorrhiza (AM), the dominant type of mycorrhiza in tropical ecosystems formed by members of the fungal phyla Glomeromycota. In total 50 samples from seedlings and older trees were included in the study. AM structures, e.g. vesicles and potential arbuscules, were observed using microscopy. A large number of possible AM symbionts were also identified by molecular analysis, as well as fungi be-longing to Ascomycota and Basidiomycota. These results suggest that A. stuhlmannii is able to form arbuscular mycorrhiza, potentially with a wide range of fungal species. How-ever, it remains to clarify to what extent the growth of Allanblackia is benefiting from the association, as well as identify the key fungal species. Allanblackia är ett trädsläkte som växer i Väst-, Central- och Östafrikas regnskogar. Dess frukter innehåller oljerika frön från vilka högkvalitativt, ätligt fett kan utvinnas. I syfte att skapa en hållbar produktion av Allanblackiafrön har ett domesticeringsprogram inletts för att möjliggöra småskalig odling av trädet inom agroforestrysystem. Dock krävs mer kunskap om trädets biologi och eventuella symbiotiska förhållanden med markorganismer. Den här studien av Allanblackia är den första i detta sammanhang och undersöker svampsamhället hos Allanblackia stuhlmannii, en underart endemisk till Tanzania. Syftet var att undersöka om träden kan bilda arbuskulär mykorrhiza (AM), den dominerande typen av mykorrhiza i tropiska ekosystem vilken bildas av medlemmar i svampfylumet Glomeromycota. Sammanlagt 50 rotprover från unga och äldre träd ingick i studien. Mikroskopering visade potentiella AM strukturer i form av vesikler och arbuskler. Därtill kunde ett stort antal tänkbara AM symbionter identifieras genom molekyläranalys, liksom svampar tillhörande Ascomycota och Basidiomycota. Resultaten tyder på att A. stuhlmannii kan utveckla arbuskulär mykorrhiza, eventuellt med ett stort antal svamparter. Det återstår emellertid att utreda i vilken omfattning Allanblackia gynnas av dessa förhållanden, samt identifiera viktiga svamparter. SLU/Dept. of Forest Mycology and Plant Pathology 2013 H2 eng swe https://stud.epsilon.slu.se/5908/ |
| spellingShingle | Allanblackia stuhlmannii Symbionts Arbuscular mycorrhizal fungi Tree domestication East Usambara Mountains Ström, Helena Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title | Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title_full | Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title_fullStr | Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title_full_unstemmed | Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title_short | Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication |
| title_sort | examination of mycorrhizal associations of allanblackia stuhlmannii : a tree under current domestication |
| topic | Allanblackia stuhlmannii Symbionts Arbuscular mycorrhizal fungi Tree domestication East Usambara Mountains |