Predicting plant response to arbuscular mycorrhizas: The role of host functional traits |
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| Affiliation: | 1. Key Laboratory of Crop Physiology, Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China;2. Department of Biology, Brigham Young University, Provo, UT 84602, USA;3. College of Life Sciences, Nanjing Agricultural University, No.1, Weigang Road, Nanjing, 210095, China;4. Lishui Experimental Station, Jiangsu Academy of Agricultural Sciences, No.50, Zhongling Street, Nanjing 210095, China;5. Institute of Forestry, China Academy of Forestry, No.1, Dongxiaofu, Xiangshan Road, Haidian District, Beijing 100091, China;1. Key Laboratory of Crop Physiology, Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, PR China;2. Suzhou Academy of Agricultural Sciences, No.50, Wangting town, Suzhou 215000, PR China;3. Department of Biology, Brigham Young University, Provo, UT 84602, USA;4. Institute of Agricultural Sciences in Yanjiang District of Jiangsu Province, Rugao 226500, PR China;1. Key Laboratory of Crop Physiology, Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, PR China;2. Department of Biology, Brigham Young University, Provo, UT 84602, USA;3. Institute of Agricultural Sciences of Yanjiang District, Jiangsu Province, Rugao 226541, PR China;1. MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi''an Jiaotong University, Xi''an, 710049, China;2. School of Life Sciences, Inner Mongolia University, Hohhot, 010018, China;3. State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, 100000, China;4. China Energy Group, Shendong Coal Group Technology Research Institute, Ordos, 017200, China;5. China Coal Research Institute, Beijing, 100013, China |
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| Abstract: | 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 C3-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. |
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| Keywords: | Arbuscular mycorrhizal fungi Growth response Plant functional type Meta-analysis |
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