دورية أكاديمية
Relationship between soil nutrients and mycorrhizal associations of two Bipinnula species (Orchidaceae) from central Chile.
| العنوان: | Relationship between soil nutrients and mycorrhizal associations of two Bipinnula species (Orchidaceae) from central Chile. |
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| المؤلفون: | Mujica MI; Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile Institute of Ecology and Biodiversity (IEB), Alameda 340, Santiago, Chile mujisa@gmail.com mperezt@bio.puc.cl., Saez N; Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile., Cisternas M; Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Casilla 4-D, Quillota, Chile Jardín Botánico Nacional, camino El Olivar 305, El Salto, Viña del Mar, Chile., Manzano M; Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile., Armesto JJ; Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile Institute of Ecology and Biodiversity (IEB), Alameda 340, Santiago, Chile., Pérez F; Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile Institute of Ecology and Biodiversity (IEB), Alameda 340, Santiago, Chile mujisa@gmail.com mperezt@bio.puc.cl. |
| المصدر: | Annals of botany [Ann Bot] 2016 Jul; Vol. 118 (1), pp. 149-58. Date of Electronic Publication: 2016 Jun 16. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 0372347 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-8290 (Electronic) Linking ISSN: 03057364 NLM ISO Abbreviation: Ann Bot Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2002- : Oxford, UK : Oxford University Press Original Publication: Oxford [etc.] |
| مواضيع طبية MeSH: | Soil Microbiology*, Mycorrhizae/*physiology , Orchidaceae/*microbiology , Soil/*chemistry, Chile ; Ecosystem ; Mycorrhizae/genetics ; Nitrogen/analysis ; Phosphorus/analysis ; Phylogeny |
| مستخلص: | Background and Aims: Mycorrhizal associations are influenced by abiotic and biotic factors, including climate, soil conditions and the identity of host plants. However, the effect of environmental conditions on orchid mycorrhizal associations remains poorly understood. The present study examined how differences in soil nutrient availability are related to the diversity and composition of mycorrhizal fungi associated with two terrestrial orchid species from central Chile. Methods: For 12 populations of Bipinnula fimbriata and B. plumosa, OTU (operational taxonomic unit) richness, phylogenetic diversity and community composition of mycorrhizal fungi in root samples were estimated using internal transcribed spacer (ITS) sequences. Then, these mycorrhizal diversity variables were related to soil nutrients and host species using generalized linear models and non-metric multidimensional scaling. Key Results: Variation in OTU composition of mycorrhizal fungi among sites was explained mainly by orchid host species. Fungi in Tulasnellaceae and Ceratobasidiaceae were isolated from both orchid species, but the former were more frequent in B. fimbriata and the latter in B. plumosa. Soil nutrients and orchid host species had significant effects on OTU richness and phylogenetic diversity. Mycorrhizal diversity decreased in habitats with higher N in both species and increased with P availability only in B. fimbriata Conclusions: The results suggest that soil nutrient availability modulates orchid mycorrhizal associations and provide support for the hypothesis that specialization is favoured by higher soil nutrient availability. Inter-specific differences in mycorrhizal composition can arise due to a geographical pattern of distribution of orchid mycorrhizal fungi, host preferences for fungal partners or differential performance of mycorrhizal fungi under different nutrient availabilities. Further experiments are needed to evaluate these hypotheses. (© The Author 2016. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com.) |
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| فهرسة مساهمة: | Keywords: Bipinnula; central Chile; mycorrhizal specialization; orchid mycorrhiza; soil nutrients |
| المشرفين على المادة: | 0 (Soil) 27YLU75U4W (Phosphorus) N762921K75 (Nitrogen) |
| تواريخ الأحداث: | Date Created: 20160618 Date Completed: 20170816 Latest Revision: 20240325 |
| رمز التحديث: | 20240325 |
| مُعرف محوري في PubMed: | PMC4934401 |
| DOI: | 10.1093/aob/mcw082 |
| PMID: | 27311572 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-8290 |
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| DOI: | 10.1093/aob/mcw082 |