Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Donal D. Hook; Claud L. Brown; Paul P. Kormanik
    Date: 1971
    Source: Journal of Experimental Botany
    Publication Series: Scientific Journal (JRNL)
    Station: Southern Research Station
    PDF: Download Publication  (636.0 KB)

    Description

    Under flooding or anoxia the newly initiated roots of swamp tupelo produce et hanol and lactio acid and oxidize their rhizosphere. Unflooded roots produce less ethanol than flood roots and do not oxidize their rhizosphere. Oxygen enters the stem via the lenticels and appears to be diffused or transported via the cortex or phloem. Flood roots have less suberization in the epidermis in the terminal 2-cm section and casparian strips were less evident than in the same sections in unflooded roots. Swamp tupelo roots tolerated 10 per cent CO2 without adverse effects but 31 per cent CO2 reduced the initiation of new roots, rate of O2 uptake, and transpiration rate. Tolerance to high CO2 around the root seemed to be related to the oxidation of the rhizosphere by new roots. The combined adaptations of accelerated anaerobic respiration in the absence of O2, oxidation of the rhizosphere, and CO2 tolerance of new roots appear to be sufficient conditions to account for flood tolerance in this species.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Hook, Donal D.; Brown, Claud L.; Kormanik, Paul P. 1971. Inductive flood tolerance in swamp tupelo (Nyssa sylvatica var. biflora (Walt.) Sarg.) . Journal of Experimental Botany. 22(1): 78-89. https://doi.org/10.1093/jxb/22.1.78.

    Cited

    Google Scholar

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/59558