scholarly journals Synchronized anthesis and predation on pollen in the marine angiosperm Thalassia testudinum (Hydrocharitaceae)

2008 ◽  
Vol 354 ◽  
pp. 119-124 ◽  
Author(s):  
BI van Tussenbroek ◽  
JGR Wong ◽  
J Márquez-Guzman
Keyword(s):  
Thalassia Testudinum ◽  
Marine Angiosperm

scholarly journals Range-wide population genetic structure of the Caribbean marine angiosperm Thalassia testudinum

2018 ◽  
Vol 8 (18) ◽  
pp. 9478-9490 ◽  
Author(s):  
Kor-jent van Dijk ◽  
Eric Bricker ◽  
Brigitta I. van Tussenbroek ◽  
Michelle Waycott
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Thalassia Testudinum ◽  
The Caribbean ◽  
Wide Population ◽  
Marine Angiosperm

scholarly journals Coping with potential bi‐parental inbreeding: limited pollen and seed dispersal and large genets in the dioecious marine angiosperm Thalassia testudinum

2016 ◽  
Vol 6 (15) ◽  
pp. 5542-5556 ◽  
Author(s):  
Brigitta Ine Van Tussenbroek ◽  
Tania Valdivia‐Carrillo ◽  
Irene Teresa Rodríguez‐Virgen ◽  
Sylvia Nashieli Marisela Sanabria‐Alcaraz ◽  
Karina Jiménez‐Durán ◽  
...  
Keyword(s):  
Seed Dispersal ◽  
Thalassia Testudinum ◽  
Pollen And Seed Dispersal ◽  
Marine Angiosperm

scholarly journals Evidence that a New Antibiotic Flavone Glycoside Chemically Defends the Sea Grass Thalassia testudinumagainst Zoosporic Fungi

1998 ◽  
Vol 64 (4) ◽  
pp. 1490-1496 ◽  
Author(s):  
P. R. Jensen ◽  
K. M. Jenkins ◽  
D. Porter ◽  
W. Fenical
Keyword(s):  
Chemical Characterization ◽  
Leaf Tissue ◽  
Chemical Fractionation ◽  
Tissue Concentrations ◽  
Flavone Glycoside ◽  
Sea Grass ◽  
Zoosporic Fungi ◽  
Leaf Tissues ◽  
Marine Angiosperm

ABSTRACT Significantly fewer thraustochytrid protists (zoosporic fungi) were observed in association with healthy leaf tissue of the marine angiosperm Thalassia testudinum than in association with sterilized samples that were returned to the collection site for 48 h. In support of the hypothesis that sea grass secondary metabolites were responsible for these differences, extracts of healthyT. testudinum leaf tissues inhibited the growth of the co-occurring thraustochytrid Schizochytrium aggregatum and deterred the attachment of S. aggregatum motile zoospores to an extract-impregnated substrate. By using S. aggregatumfor bioassay-guided chemical fractionation, a new flavone glycoside was isolated and structurally characterized as luteolin 7-O-β-d-glucopyranosyl-2"-sulfate. Whole-leaf tissue concentrations of this metabolite (4 mg/ml of wet leaf tissue) inhibited S. aggregatum attachment, and a significantly lower concentration (270 μg/ml) reduced thraustochytrid growth by 50%, suggesting that natural concentrations are at least 15 times greater than that needed for significant microbiological effects. These results offer the first complete chemical characterization of a sea grass sulfated flavone glycoside and provide evidence that a secondary metabolite chemically defends T. testudinum against fouling microorganisms.

Clonal diversity and connectedness of turtle grass (Thalassia testudinum) populations in a UNESCO Biosphere Reserve

2015 ◽  
Vol 123 ◽  
pp. 76-82 ◽  
Author(s):  
James J. Campanella ◽  
Paul A.X. Bologna ◽  
Maria Carvalho ◽  
John V. Smalley ◽  
Mohamedhakim Elakhrass ◽  
...  
Keyword(s):  
Biosphere Reserve ◽  
Clonal Diversity ◽  
Thalassia Testudinum ◽  
Turtle Grass
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