Evolutionary history of mycorrhizal symbioses and global host plant diversity
Summary
1108
I.
Introduction
1108
II.
Mycorrhizal plant diversity at global and local scales
1108
III.
Mycorrhizal evolution in plants: a brief update
1111
IV.
Conclusions and perspectives
1114
References
1114
SummaryThe majority of vascular plants are mycorrhizal: 72% are arbuscular mycorrhizal (AM), 2.0% are ectomycorrhizal (EcM), 1.5% are ericoid mycorrhizal and 10% are orchid mycorrhizal. Just 8% are completely nonmycorrhizal (NM), whereas 7% have inconsistent NM–AM associations. Most NM and NM–AM plants are nutritional specialists (e.g. carnivores and parasites) or habitat specialists (e.g. hydrophytes and epiphytes). Mycorrhizal associations are consistent in most families, but there are exceptions with complex roots (e.g. both EcM and AM). We recognize three waves of mycorrhizal evolution, starting with AM in early land plants, continuing in the Cretaceous with multiple new NM or EcM linages, ericoid and orchid mycorrhizas. The third wave, which is recent and ongoing, has resulted in root complexity linked to rapid plant diversification in biodiversity hotspots.
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Hans Lambers, Mark C. Brundrett, John A. Raven et al.
David M. Olson, Eric Dinerstein, Eric D. Wikramanayake et al.
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- Published
- Jan 22, 2018
- Vol/Issue
- 220(4)
- Pages
- 1108-1115
- License
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