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Plant Physiol. 1991 Oct;97(2):821-4.

Mycorrhizal fungi and nonhydraulic root signals of soil drying.

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  • 1Institute of Agriculture, P.O. Box 1071, University of Tennessee, Knoxville, Tennessee 37901-1071.

Abstract

We propose that mycorrhizal colonization of roots alters nonhydraulic root to shoot communication of soil drying. Split-root rose (Rosa hybrida L. cv Samantha) plants-one side of the root system colonized by Glomus intraradices Schenck & Smith, the other side nonmycorrhizal-displayed different stomatal conductances upon partial drying, depending upon whether mycorrhizal or nonmycorrhizal roots were dried. No differences in leaf water status were observed among control plants and those whose mycorrhizal or nonmycorrhizal roots were dried.

PMID:
16668474
[PubMed]
PMCID:
PMC1081082
Free PMC Article
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