Dynamics of arbuscular mycorrhizal fungal community structure and functioning along a nitrogen enrichment gradient in an alpine meadow ecosystem

New Phytologist - Tập 220 Số 4 - Trang 1222-1235 - 2018
Shengjing Jiang1, Yongjun Liu1, Jiajia Luo1, Mingsen Qin1, Nancy Collins Johnson2, Maarja Öpik3, Martti Vasar3, Yuxing Chai1, Xiaolong Zhou4, Mao Lin4, Guozhen Du4, Lizhe An1, Huyuan Feng1
1Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
2School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USA
3Department of Botany, University of Tartu, Tartu, 51005 Estonia
4State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou 730000, China

Tóm tắt

Summary Nitrogen (N) availability is increasing dramatically in many ecosystems, but the influence of elevated N on the functioning of arbuscular mycorrhizal (AM) fungi in natural ecosystems is not well understood. We measured AM fungal community structure and mycorrhizal function simultaneously across an experimental N addition gradient in an alpine meadow that is limited by N but not by phosphorus (P). AM fungal communities at both whole‐plant‐community (mixed roots) and single‐plant‐species (Elymus nutans roots) scales were described using pyro‐sequencing, and the mycorrhizal functioning was quantified using a mycorrhizal‐suppression treatment in the field (whole‐plant‐community scale) and a glasshouse inoculation experiment (single‐plant‐species scale). Nitrogen enrichment progressively reduced AM fungal abundance, changed AM fungal community composition, and shifted mycorrhizal functioning towards parasitism at both whole‐plant‐community and E. nutans scales. N‐induced shifts in AM fungal community composition were tightly linked to soil N availability and/or plant species richness, whereas the shifts in mycorrhizal function were associated with the communities of specific AM fungal lineages. The observed changes in both AM fungal community structure and functioning across an N enrichment gradient highlight that N enrichment of ecosystems that are not P‐limited can induce parasitic mycorrhizal functioning and influence plant community structure and ecosystem sustainability.

Từ khóa


Tài liệu tham khảo

10.1073/pnas.1710455114

10.1016/j.soilbio.2014.10.016

10.1111/j.1399-3054.1983.tb02783.x

10.1016/j.tree.2010.05.004

Brundrett M, 1994, Practical methods in mycorrhiza research

10.1890/02-0775

10.1186/1471-2105-10-421

10.1111/gcb.12618

10.1016/j.soilbio.2017.08.024

10.1038/nature06503

10.1371/journal.pone.0041938

10.1111/j.1365-294X.2010.04969.x

10.1007/s10021-010-9347-0

10.1093/bioinformatics/btr381

10.1890/1051-0761(2000)010[0484:SIAMCA]2.0.CO;2

10.1890/06-1772.1

10.1111/1462-2920.12623

10.1890/0012-9658(1999)080[1187:MIPCSA]2.0.CO;2

10.1111/j.1461-0248.2007.01139.x

10.1038/23932

10.1111/nph.13288

10.1111/j.1469-8137.2007.02041.x

10.1046/j.1365-2745.2001.00674.x

10.1111/nph.12765

10.1073/pnas.1005874107

10.1016/j.funeco.2010.02.002

10.1111/j.1461-0248.2009.01430.x

HothornT BretzF WestfallP HeibergerRM SchuetzenmeisterA ScheibeS.2015.Package ‘multcomp’: simultaneous inference in general parametric models. R package version 1.4‐0. [WWW document] URLhttps://CRAN.R-project.org/package=multcomp[accessed 1 September 2017].

10.1002/ecs2.1256

10.2307/1942106

10.1111/j.1469-8137.2009.03110.x

10.1890/07-1394.1

10.1890/0012-9658(2003)084[1895:NEAMAA]2.0.CO;2

10.1111/nph.13172

10.1007/s10886-012-0134-6

10.1093/molbev/mst010

10.1038/ncomms12881

10.1890/02-0413

10.1111/j.1469-8137.2004.01202.x

10.1111/j.1574-6941.2008.00531.x

10.1016/j.soilbio.2014.12.003

10.1016/S1002-0160(11)60193-8

10.1016/j.soilbio.2009.11.034

10.1016/j.soilbio.2015.07.007

10.1111/j.1469-8137.2012.04050.x

10.1029/2006JD007990

10.1016/j.soilbio.2016.07.023

10.1126/science.1143082

10.1111/j.1469-8137.1990.tb00476.x

10.1007/BF00328420

10.1093/bioinformatics/btn575

10.1046/j.1469-8137.2002.00364.x

OksanenJ BlanchetFG KindtR LegendreP MinchinPR O'HaraRB SimpsonGL SolymosP StevensMHH WagnerH.2015.Package ‘vegan’: community ecology package. R package version 2.2‐1. [WWW document] URLhttps://CRAN.R-project.org/package=vegan[accessed 1 September 2017].

10.1111/j.1469-8137.2010.03334.x

10.1093/bioinformatics/btg412

PinheiroJ BatesD DebRoyS SarkarD R Core Team.2016.nlme: linear and nonlinear mixed effects models. R package version 3.1‐128. [WWW document] URLhttp://CRAN.R-project.org/package=nlme[accessed 1 September 2017].

10.1002/ece3.2207

10.1111/1365-2435.12668

10.1007/PL00009996

10.1126/science.1210722

10.1128/aem.58.1.291-295.1992

10.1146/annurev-arplant-042110-103846

10.1016/S0269-7491(99)00091-3

10.3852/16-042

10.1126/science.1094678

10.1073/pnas.0408648102

10.1093/molbev/mst197

10.1111/j.1469-8137.2004.01159.x

10.1046/j.1469-8137.2002.00470.x

10.1111/j.1365-2486.2006.01279.x

10.1016/j.soilbio.2009.07.026

10.1038/ismej.2016.46

10.1371/journal.pone.0027825

10.1111/j.1752-4571.2010.00145.x

10.1016/j.soilbio.2012.05.007

10.1111/j.1574-6941.2008.00447.x

10.1890/1051-0761(1997)007[0737:HAOTGN]2.0.CO;2

10.1111/j.1469-8137.2006.01854.x

10.1111/j.1461-0248.2011.01666.x

10.1111/gcb.12348

10.1111/nph.14196

10.1111/j.1461-0248.2009.01303.x

10.1007/s11104-010-0688-4

10.1093/aobpla/plv125

10.1111/1365-2745.12249

10.1111/1574-6941.12361

10.1016/j.soilbio.2015.12.012

10.1111/jvs.12191

Thông tin
Thông tin xuất bản

New Phytologist

Tập 220 Số 4

1222-1235

Thông tin tác giả