Details
| Original language | English |
|---|---|
| Pages (from-to) | 916-929 |
| Number of pages | 14 |
| Journal | Journal of Soil Science and Plant Nutrition |
| Volume | 16 |
| Issue number | 4 |
| Publication status | Published - 2016 |
Abstract
Southern Chilean pristine temperate rainforests have been floristically stable during the Holocene, thus representing a pre-industrial baseline of forest ecology. Given this and its edaphic limitations, it is imperative to better understand these forests ecological patterns of mycorrhizal symbiosis. Therefore, here we compare the arbuscular mycorrhizal (AM) communities in three treeline Nothofagus pumilio contrasting plots of Chilean Andes (a volcano crater, pristine forest, and disturbed forest). The AM community assemblages were determined by morphological identification and spore counting, in three A horizon soil samples by plot. In the same nine soil samples, standard chemical analysis was performed. Eighteen AM species were described; Acaulospora was the most abundant genus. The forest plot had the highest AM species richness compared to the disturbed and crater plots. Interestingly, soils Olsen P (plant available phosphorus), pH, and Al+++ saturation similarly affected the AM assemblages. We suggest that some AM species could be specially adapted to extremely high Al saturation and extremely low plant available P conditions, as those experienced on Andean Nothofagus forests. These species may help initiate biological succession on highly disturbed ecosystems. We suggest that mycorrhizal fungi play a key role in seedling colonization of extreme environments such as the Andean treeline.
Keywords
- Al-saturation, Arbuscular mycorrhizal fungi, Nothofagus pumilio, Plant available P, Succession, Temperate rainforests
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Soil Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Journal of Soil Science and Plant Nutrition, Vol. 16, No. 4, 2016, p. 916-929.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Arbuscular mycorrhizal assemblages along contrasting Andean forests of Southern Chile
AU - Marin, Cesar
AU - Aguilera, Paula
AU - Cornejo, Pablo
AU - Godoy, Roberto
AU - Oehl, Fritz
AU - Palfner, Gotz
AU - Boy, Jens
N1 - Publisher Copyright: © 2016, Sociedad Chilena de la Ciencia del Suelo. All rights reserved. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - Southern Chilean pristine temperate rainforests have been floristically stable during the Holocene, thus representing a pre-industrial baseline of forest ecology. Given this and its edaphic limitations, it is imperative to better understand these forests ecological patterns of mycorrhizal symbiosis. Therefore, here we compare the arbuscular mycorrhizal (AM) communities in three treeline Nothofagus pumilio contrasting plots of Chilean Andes (a volcano crater, pristine forest, and disturbed forest). The AM community assemblages were determined by morphological identification and spore counting, in three A horizon soil samples by plot. In the same nine soil samples, standard chemical analysis was performed. Eighteen AM species were described; Acaulospora was the most abundant genus. The forest plot had the highest AM species richness compared to the disturbed and crater plots. Interestingly, soils Olsen P (plant available phosphorus), pH, and Al+++ saturation similarly affected the AM assemblages. We suggest that some AM species could be specially adapted to extremely high Al saturation and extremely low plant available P conditions, as those experienced on Andean Nothofagus forests. These species may help initiate biological succession on highly disturbed ecosystems. We suggest that mycorrhizal fungi play a key role in seedling colonization of extreme environments such as the Andean treeline.
AB - Southern Chilean pristine temperate rainforests have been floristically stable during the Holocene, thus representing a pre-industrial baseline of forest ecology. Given this and its edaphic limitations, it is imperative to better understand these forests ecological patterns of mycorrhizal symbiosis. Therefore, here we compare the arbuscular mycorrhizal (AM) communities in three treeline Nothofagus pumilio contrasting plots of Chilean Andes (a volcano crater, pristine forest, and disturbed forest). The AM community assemblages were determined by morphological identification and spore counting, in three A horizon soil samples by plot. In the same nine soil samples, standard chemical analysis was performed. Eighteen AM species were described; Acaulospora was the most abundant genus. The forest plot had the highest AM species richness compared to the disturbed and crater plots. Interestingly, soils Olsen P (plant available phosphorus), pH, and Al+++ saturation similarly affected the AM assemblages. We suggest that some AM species could be specially adapted to extremely high Al saturation and extremely low plant available P conditions, as those experienced on Andean Nothofagus forests. These species may help initiate biological succession on highly disturbed ecosystems. We suggest that mycorrhizal fungi play a key role in seedling colonization of extreme environments such as the Andean treeline.
KW - Al-saturation
KW - Arbuscular mycorrhizal fungi
KW - Nothofagus pumilio
KW - Plant available P
KW - Succession
KW - Temperate rainforests
UR - http://www.scopus.com/inward/record.url?scp=85014771563&partnerID=8YFLogxK
U2 - 10.4067/S0718-95162016005000065
DO - 10.4067/S0718-95162016005000065
M3 - Article
VL - 16
SP - 916
EP - 929
JO - Journal of Soil Science and Plant Nutrition
JF - Journal of Soil Science and Plant Nutrition
SN - 0718-9516
IS - 4
ER -