scholarly journals Host-specific ecotype diversity of rhizoplane diazotrophs of the perennial glasswort Salicornia virginica and selected salt marsh grasses

2001 ◽  
Vol 23 ◽  
pp. 293-300 ◽  
Author(s):  
CE Bagwell ◽  
M Dantzler ◽  
PW Bergholz ◽  
CR Lovell
Keyword(s):  
Salt Marsh ◽  
Salicornia Virginica

Effect of reciprocal transplanting between extremes of plant zones on morphometric plasticity of five plant species in an Oregon salt marsh

1985 ◽  
Vol 63 (12) ◽  
pp. 2254-2262 ◽  
Author(s):  
Denise M. Seliskar
Keyword(s):  
Salt Marsh ◽  
Plant Species ◽  
Soil Moisture Content ◽  
Chemical Properties ◽  
Salicornia Virginica ◽  
Salt Marsh Plant ◽  
Reciprocal Transplants ◽  
Being Moved ◽  
Distributional Limits ◽  
Properties Of Soil

Reciprocal transplants of each of five salt marsh plant species were made to determine whether differences in morphology and anatomy between plants at the upper and lower distributional limits of each species were fixed or plastic. At the end of 1 year, Deschampsia cespitosa, Distichlis spicata, Grindelia integrifolia, Jaumea carnosa, and Salicornia virginica all demonstrated morphometric plasticity. Environmental variables were measured to look for correlations between morphological and anatomical changes and environment. Chemical properties of the transplanted soils of D. spicata and of S. virginica became like those of the surrounding soil, while the properties of soil around G. integrifolia and J. carnosa transplants did not change significantly upon being moved. Soil moisture content was always greatest at the lower elevational site and probably accounts for much of the structural change observed in the reciprocal transplants. For example, the increase in the amount of aerenchymatous tissue in S. virginica plants moved to the lower elevational site was most likely caused by the nearly saturated soil at that location.

DARK FIXATION OF C14O2 BY OBLIGATE AND FACULTATIVE SALT MARSH HALOPHYTES

1965 ◽  
Vol 43 (2) ◽  
pp. 281-285 ◽  
Author(s):  
Kenneth L. Webb ◽  
J. W. A. Burley
Keyword(s):  
Salt Marsh ◽  
Organic Acids ◽  
Spartina Alterniflora ◽  
Time Study ◽  
Salicornia Europaea ◽  
Borrichia Frutescens ◽  
Salicornia Virginica ◽  
Batis Maritima ◽  
Facultative Halophyte ◽  
Dark Fixation

After dark fixation of C14O2 by salt marsh obligate halophytes, most of the 80% ethanol-soluble label appeared in the amino acid fraction. Species tested were Batis maritima L., Salicornia europaea L., Salicornia virginica L., and Borrichia frutescens (L.) D.C.A time study was made of the dark fixation products of C14O2 by Spartina alterniflora Loisel, a facultative halophyte, cultured with and without NaCl in the nutrient medium. In this species the greater proportion of label was recovered from amino acids (principally aspartic and glutamic acids) at times of 1 hour and less, the pattern changing to favor organic acids at longer times, mainly malic acid in NaCl-free plants. The shift to organic acids was slower in plus NaCl plants with aconitic and an unidentified acid appearing along with malic as the principal labelled acids.NaCl reduced the rate of C14O2 assimilation by Spartina alterniflora. Initially, the fixation pattern resembled that of obligate halophytes, becoming more like that of terrestial plants (glycophytes) after 1 hour.

Salicornia virginica in a southern California salt marsh: Seasonal patterns and a nutrient-enrichment experiment

Wetlands ◽  
2001 ◽  
Vol 21 (3) ◽  
pp. 315-326 ◽  
Author(s):  
Katharyn E. Boyer ◽  
Peggy Fong ◽  
Richard R. Vance ◽  
Richard F. Ambrose
Keyword(s):  
Salt Marsh ◽  
Nutrient Enrichment ◽  
Southern California ◽  
Seasonal Patterns ◽  
Salicornia Virginica

scholarly journals Formyltetrahydrofolate Synthetase Sequences from Salt Marsh Plant Roots Reveal a Diversity of Acetogenic Bacteria and Other Bacterial Functional Groups

2003 ◽  
Vol 69 (1) ◽  
pp. 693-696 ◽  
Author(s):  
A. B. Leaphart ◽  
M. J. Friez ◽  
C. R. Lovell
Keyword(s):  
Salt Marsh ◽  
Plant Roots ◽  
Juncus Roemerianus ◽  
Sphingomonas Paucimobilis ◽  
Salicornia Virginica ◽  
Salt Marsh Plant ◽  
Formyltetrahydrofolate Synthetase ◽  
Sulfate Reducing ◽  
Acetogenic Bacteria ◽  
Reducing Bacteria

ABSTRACT Sixty-two partial formyltetrahydrofolate synthetase (FTHFS) structural gene sequences were recovered from roots of salt marsh plants, including Spartina alterniflora, Salicornia virginica, and Juncus roemerianus. Only S. alterniflora roots yielded sequences grouping with FTHFS sequences from known acetogens. Most other FTHFS or FTHFS-like sequences grouped with those from sulfate-reducing bacteria. Several sequences that grouped with Sphingomonas paucimobilis ligH were also recovered.

Urbanization impacts on production and recruitment of Fundulus heteroclitus in salt marsh creeks

2020 ◽  
Vol 645 ◽  
pp. 187-204
Author(s):  
PJ Rudershausen ◽  
JA Buckel
Keyword(s):  
Salt Marsh ◽  
Salt Marshes ◽  
Fundulus Heteroclitus ◽  
Multiple Factor Analysis ◽  
Southeastern Usa ◽  
Density Dependent ◽  
Dependent Relationship ◽  
Juvenile Abundance ◽  
The Relationship ◽  
Throw Trap

It is unclear how urbanization affects secondary biological production in estuaries in the southeastern USA. We estimated production of larval/juvenile Fundulus heteroclitus in salt marsh areas of North Carolina tidal creeks and tested for factors influencing production. F. heteroclitus were collected with a throw trap in salt marshes of 5 creeks subjected to a range of urbanization intensities. Multiple factor analysis (MFA) was used to reduce dimensionality of habitat and urbanization effects in the creeks and their watersheds. Production was then related to the first 2 dimensions of the MFA, month, and year. Lastly, we determined the relationship between creek-wide larval/juvenile production and abundance from spring and abundance of adults from autumn of the same year. Production in marsh (g m-2 d-1) varied between years and was negatively related to the MFA dimension that indexed salt marsh; higher rates of production were related to creeks with higher percentages of marsh. An asymptotic relationship was found between abundance of adults and creek-wide production of larvae/juveniles and an even stronger density-dependent relationship was found between abundance of adults and creek-wide larval/juvenile abundance. Results demonstrate (1) the ability of F. heteroclitus to maintain production within salt marsh in creeks with a lesser percentage of marsh as long as this habitat is not removed altogether and (2) a density-dependent link between age-0 production/abundance and subsequent adult recruitment. Given the relationship between production and marsh area, natural resource agencies should consider impacts of development on production when permitting construction in the southeastern USA.

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