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Comment
. 2019 Aug 6;116(32):15760-15762.
doi: 10.1073/pnas.1910420116. Epub 2019 Jul 18.

Refining the stress gradient hypothesis in a microbial community

Sarah P Hammarlund  1   2 , William R Harcombe  3   2
Affiliations
Comment

Refining the stress gradient hypothesis in a microbial community

Sarah P Hammarlund et al. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1.
Fig. 1.
(A) The classic SGH as formulated by Bertness and Callaway (8). Negative interactions (competition) are expected to be found in benign environments, while positive interactions (facilitation) should be found in stressful environments. (B) Piccardi et al. (7) explore the combined effects of a toxicity gradient and a resource gradient. Competitive interactions dominate at low toxicity and high resource levels, while facilitation dominates at high toxicity and low resource levels.
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