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Predicting plant response to arbuscular mycorrhizas: The role of host functional traits

文献类型： 外文期刊

作者： Yang, Haishui 1 ; Xu, Jianglai 1 ; Guo, Yi 1 ; Koide, Roger T. 2 ; Dai, Yajun 1 ; Xu, Mingmin 3 ; Bian, Liping 4 ; Bian, 1 ;

作者机构： 1.Nanjing Agr Univ, Key Lab Crop Physiol Ecol & Prod Management, Minist Agr, Nanjing 210095, Jiangsu, Peoples R China

2.Brigham Young Univ, Dept Biol, Provo, UT 84602 USA

3.Nanjing Agr Univ, Coll Life Sci, 1 Weigang Rd, Nanjing 210095, Jiangsu, Peoples R China

4.Jiangsu Acad Agr Sci, Lishui Expt Stn, 50 Zhongling St, Nanjing 210095, Jiangsu, Peoples R China

5.China Acad Forestry, Inst Forestry, Xiangshan Rd, Beijing 100091, Peoples R China

关键词： Arbuscular mycorrhizal fungi;Growth response;Plant functional type;Meta-analysis

期刊名称：FUNGAL ECOLOGY （ 影响因子：3.404； 五年影响因子：4.647 ）

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收录情况： SCI

摘要： The arbuscular mycorrhiza (AM) is among the most ubiquitous symbiosis in the world. A meta-analysis of 759 articles (1978-2012) was conducted to test whether ecologically important host plant traits (N fixation and C-fixation pathway) affect the response of the plant to mycorrhizal colonization. We found that the effect of N-fixation on mycorrhizal growth response (MGR) depended on whether the plant was woody or a forb. N-fixing forbs had a higher MGR than non-N-fixing forbs, but the reverse was true for woody plants. Moreover, C4-grasses had significantly higher MGR than Cs-grasses, but no significant difference was found between C3 and C4 forbs, or between C3 and C4 woody species. Overall, woody species had higher MGR than any other functional group. These results demonstrate that MGR does depend on host functional characteristics, but neither N-fixation capacity nor C-fixation pathway are apparently fundamental controllers of MGR. Instead, it would appear possible that these traits influence MGR only insofar as they influence more fundamental functions such as P demand and P supply. (C) 2015 Elsevier Ltd and The British Mycological Society. All rights reserved.

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