Oxygen deficiency in Spartina alterniflora roots: metabolic adaptation to anoxia

The aerenchyma (air-space) tissue in the wetland macrophyte Spartina alterniflora conveys sufficient oxygen to roots for predominately aerobic respiration in moderately, but not highly, reduced substrates. Continuously flooded plants survive by respiring anaerobically, although growth is decreased....

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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 214; no. 4519; pp. 439 - 441
Main Authors Mendelssohn, I.A, McKee, K.L, Patrick, W.H. Jr
Format Journal Article
LanguageEnglish
Published United States The American Association for the Advancement Science 23.10.1981
American Association for the Advancement of Science
Subjects
Anoxia
Environmental aspects
Ethanol
Hypoxia
Oxygen
Plant adaptation
Plant roots
Plants
Salt marsh ecology
Sediments
Soil respiration
Soil water
Tidal marsh ecology
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Summary:The aerenchyma (air-space) tissue in the wetland macrophyte Spartina alterniflora conveys sufficient oxygen to roots for predominately aerobic respiration in moderately, but not highly, reduced substrates. Continuously flooded plants survive by respiring anaerobically, although growth is decreased. Two metabolic adaptations to flooding are displayed in this species, depending on the degree of soil reduction.
Bibliography:F60
H50
8135045
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0036-8075
1095-9203
DOI:10.1126/science.214.4519.439