Endophytic nitrogen fixation in dune grasses (Ammophila arenaria and Elymus mollis) from Oregon
نویسندگان
چکیده
منابع مشابه
Does salt stress constrain spatial distribution of dune building grasses Ammophila arenaria and Elytrichia juncea on the beach?
Rising sea levels threaten coastal safety by increasing the risk of flooding. Coastal dunes provide a natural form of coastal protection. Understanding drivers that constrain early development of dunes is necessary to assess whether dune development may keep pace with sea-level rise. In this study, we explored to what extent salt stress experienced by dune building plant species constrains thei...
متن کاملBiophysical feedback mediates effects of invasive grasses on coastal dune shape.
Vegetation at the aquatic-terrestrial interface can alter landscape features through its growth and interactions with sediment and fluids. Even similar species may impart different effects due to variation in their interactions and feedbacks with the environment. Consequently, replacement of one engineering species by another can cause significant change in the physical environment. Here we inv...
متن کاملNitrogen fixation in grasses - gluconacetobacter activates genes in sugarcane
Nitrogen-fixing bacteria have been isolated from sugarcane (Saccharum spp.) and other grasses in an endophytic and beneficial interaction that promotes plant growth. In this interaction, bacteria colonize the intercellular spaces and vascular tissues of most plant organs without causing disease symptoms. The best characterized sugarcane endophytic diazotrophs are Gluconacetobacter diazotrophicu...
متن کاملDesmoschoenus spiralis displacement by Ammophila arenaria: the role of drought
The exotic sand-binder Ammophila arenaria (marram grass) has displaced the native sedge Desmoschoenus spiralis (pingao or pikao) from many of New Zealand’s coastal dunes. This study explores the possible role of drought as a mechanism promoting marram invasion and pingao displacement. The response of the two sandbinders to conditions of increasing soil water deficit was compared in a four-week ...
متن کاملEndophytic colonization and in planta nitrogen fixation by a Herbaspirillum sp. isolated from wild rice species.
Nitrogen-fixing bacteria were isolated from the stems of wild and cultivated rice on a modified Rennie medium. Based on 16S ribosomal DNA (rDNA) sequences, the diazotrophic isolates were phylogenetically close to four genera: Herbaspirillum, Ideonella, Enterobacter, and Azospirillum. Phenotypic properties and signature sequences of 16S rDNA indicated that three isolates (B65, B501, and B512) be...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 2004
ISSN: 0168-6496,1574-6941
DOI: 10.1016/j.femsec.2004.04.010