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The influence of arbuscular mycorrhi...

Gravier, Jacquelyn Kelly.

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The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community./
作者:	Gravier, Jacquelyn Kelly.
面頁冊數:	150 p.
附註:	Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3297.
Contained By:	Dissertation Abstracts International70-06B.
標題:	Biology, Botany. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3362024
ISBN:	9781109208818

The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community.
Gravier, Jacquelyn Kelly.

The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community. - 150 p.

Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3297.

Thesis (Ph.D.)--The University of Chicago, 2009.

The majority terrestrial plant communities are affected by symbiotic arbuscular mycorrhizal fungi (AMF), which influence plants through symbiotic interactions within the soil. This symbiosis has been implicated as a significant factor influencing the structure, composition, diversity and productivity of plant communities. However, much remains unknown about the mechanisms that regulate and govern this symbiosis, particularly in complex ecological settings.

ISBN: 9781109208818Subjects--Topical Terms:

1017825
Biology, Botany.

The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community.
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245 1 4 $a The influence of arbuscular mycorrhizal fungal symbiosis on the structure, composition and diversity of an experimental plant community.
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500 $a Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3297.
500 $a Adviser: R. Michael Miller.
502 $a Thesis (Ph.D.)--The University of Chicago, 2009.
520 $a The majority terrestrial plant communities are affected by symbiotic arbuscular mycorrhizal fungi (AMF), which influence plants through symbiotic interactions within the soil. This symbiosis has been implicated as a significant factor influencing the structure, composition, diversity and productivity of plant communities. However, much remains unknown about the mechanisms that regulate and govern this symbiosis, particularly in complex ecological settings.
520 $a In the first set of experiments, a broad range of naturally co-occurring plant and AMF species were compared in a greenhouse study to evaluate the range of plant responses to different AMF species and to test whether plant species responded predictably to mixed AMF species community treatments. The effects of AMF species on plant growth suggest that considerable complexity exists in this symbiosis and that AMF may be significantly influencing plant growth, therefore potentially impacting plant co-existence in natural communities.
520 $a In the next study, a mesocosm experiment was used to compare the community assembly patterns of plants as influenced by the composition of AMF to determine whether AMF can drive plant community structure. The different AMF community treatments affected plant productivity, plant diversity and plant community composition. These results indicate that AMF are able to drive plant community structure and highlight the importance of considering this symbiosis in the interpretation of plant studies and ecosystems theory.
520 $a The final study used a community assembly experiment to determine whether the history of exposure to particular AMF species influenced the resulting community composition. While the order of AMF introduction affected the survivorship and relative growth rates of plant species during the first season, treatments had no impact on the resulting plant community diversity, structure or composition.
520 $a Together, these results suggest that the AMF community has the capacity to impact important plant community attributes, likely through the abilities of AMF species to differentially impact various plant species, influencing their capacity for co-existence via changes in available niche space. Moreover, the complexity of these associations appears to extend beyond the differential effects of particular AMF and plant pairs, as the constituents of the AMF community may change plant responses beyond what was predicted from pairwise interactions.
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792 $a 2009
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