Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Aerenchyma development and oxygen transport in the estuarine cordgrasses Spartina alterniflora and S. anglica
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522
|  |
| Trefwoorden |
Depletion > Oxygen depletion > Anoxia
Flora > Aquatic organisms > Aquatic plants
Organisms > Invasive species
Oxygen demand
Spartina alterniflora Loisel. [WoRMS]; Spartina anglica C.E. Hubbard [WoRMS]
Marien/Kust |
| Abstract |
Spartina alterniflora and Spartina anglica are intertidal cordgrasses that have the capacity to develop extensive aerenchyma systems. Aerenchyma may supply submerged portions of the plant with atmospheric oxygen as well as lower metabolic demands of the plant. These physiological benefits help to make Spartina grasses formidable invasive species in areas where they have been introduced. Aerenchyma development was investigated in S. alterniflora and S. anglica maintained in greenhouse experiments under flooded and drained soil conditions. Amounts of aerenchyma along the lengths of roots were calculated from digital images of serial root cross-sections using image analysis software. Maximal aerenchyma formation occurred in S. alterniflora following exposure to flooded conditions, while aerenchyma in S. anglica did not increase under the same conditions. Aerenchyma function was investigated by testing individual Spartina plants for their ability to transport oxygen from leaves to roots. Oxygen transport capacities provided information about the plants' oxygen demands and the overall effectiveness of their aerenchyma systems. S. anglica plants were able to transport substantial oxygen to their roots, but no oxygen transport was detected in S. alterniflora plants under the same conditions. Increased aerenchyma formation in flooded S. alterniflora did not enhance oxygen transport and may function primarily in reducing metabolic oxygen demands. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
