Pathogen regulation of plant diversity via effective specialization.

Journal Article (Journal Article)

The Janzen-Connell (JC) hypothesis, one of the most influential hypotheses explaining forest diversity, is inconsistent with evidence that tree species share the same natural enemies. Through the discussion of seedling diseases from a pathogen-centered perspective, we expand the JC hypothesis to tie in host-pathogen-environment interactions at three levels: local adaptation, host specificity of the combined effect of multiple infections, and environmental modulation of disease. We present evidence from plant pathology, disease ecology, and host-parasite evolution relevant to (but not commonly associated with) forest species diversity maintenance. This expanded view of the JC hypothesis suggests ways to direct new experiments to integrate research on pathogen local adaptation, co-infection, and environmental effects on infection by using high-throughput molecular techniques and statistical models.

Full Text

Duke Authors

Cited Authors

  • Benítez, M-S; Hersh, MH; Vilgalys, R; Clark, JS

Published Date

  • December 2013

Published In

Volume / Issue

  • 28 / 12

Start / End Page

  • 705 - 711

PubMed ID

  • 24091206

Electronic International Standard Serial Number (EISSN)

  • 1872-8383

International Standard Serial Number (ISSN)

  • 0169-5347

Digital Object Identifier (DOI)

  • 10.1016/j.tree.2013.09.005


  • eng