Population differentiation within Festuca rubra L. with regard to soil salinity and soil water

Rozema, J.; Rozema-Dijst, E.; Freijsen, A. H. J.; Huber, James J.

doi:10.1007/bf00344910

Cited by 63 publications

(29 citation statements)

References 24 publications

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“…A comparison between populations of Festuca rubra, differing in salt resistance but with a similar increase of the proline content with increased salini-ty, was made by Rozema et al (1978b). These data lead them to the conclusion that the accumulation of proline is not the basis of salt resistance, but just a stress effect related to increased salt uptake.…”

Section: Effects Of Interaction Between Salinity and Other Factorsmentioning

confidence: 98%

Ecophysiological adaptations of coastal halophytes from foredunes and salt marshes

et al. 1985

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Ecophysiological strategies of coastal halophytes from foredunes and salt marshes are discussed. A comparison is made of the factors that limit growth in salt marshes and sand dunes. In salt marshes, zonation and succession are primarily governed by variation in soil salinity, which strongly depends on inundation with seawater. Results are described of experiments which aim at separating salinity and inundation effects on growth, osmotic and mineral relations in a comparison of salt-marsh halophytes. The growth response of plants cannot simply be correlated (and causally explained) with the concentration of Na, C1, and K in the tissues. Also, the compatible osmotic solutes proline and methylated quaternary ammonium compounds may accumulate both in species with a positive response to increased salinity and in species with a growth reduction under seawater inundation. More likely inadequate adaptation of the plants water potential with these components is partly the cause of retarded growth. Disfunctioning of the plant in this respect may be at three levels: (a) total water potential of the plant, (b) (loss) of turgor pressure potential; (c) regulation at the cellular level.The ecological importance of some factors in seawater other than sodium chloride is considered. In coastal sand dunes airborne rather than soil salinity limits plant growth, together with the effects of abrasion, sand accretion, drought and the poor nutrient status of the dune sand. Adaptations of sand-dune species to these factors may consist of: large seeds with storage tissue germinating in the dark and seedling growth enough to emerge through the accreted sand. Aerial parts must be resistant to mechanical damage (high wind speed and abrasion), possibly by a sclerophyllous and tough structure. Efficient nutrient uptake, translocation and retranslocation seem to help survive sand-dune species in a nutrient-poor rooting medium. Outline and scopeThis paper aims at a discussion of abiotic factors influencing salt-marsh halophytes and species from the foredunes, which are more or less under the direct influence by the sea, either by seawater inundation (salt marshes) or seawater spray together with sand drifting at high wind speeds. Watkinson

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Section: Effects Of Interaction Between Salinity and Other Factorsmentioning

confidence: 98%

Ecophysiological adaptations of coastal halophytes from foredunes and salt marshes

et al. 1985

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“…litoralis , show much greater tolerance to soil salinity than inland subspecies such as F. rubra subsp. rubra (Rozema et al. , 1978).…”

Section: Introductionmentioning

confidence: 99%

The infection of Festuca rubra subsp. pruinosa by Epichloë festucae

Zabalgogeazcoa

Romo

Keck

et al. 2006

Grass and Forage Science

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Festuca rubra subsp. pruinosa is a grass that inhabits the sea cliffs of the Atlantic coasts of Europe. Four populations of this plant in the northern coast of Galicia, in northern Spain, were analysed for the presence of fungal endophytes. Of the plants included in the study, on average 0AE69 were infected by an intercellular fungal endophyte. Using morphological and molecular characters, this endophyte was identified as Epichloë festucae, a clavicipitaceous, seed-transmitted species. A halfsibling line, consisting of endophyte-free and endophyte-infected plants, was developed and used to test whether the presence of the fungus affected the response of the plants to salinity. Dry weights of infected or uninfected plants, watered with sea-water solutions or tap water, did not significantly differ.

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“…Such interactions are now attracting increasing attention in their relevance to salinisation, drought and irrigation/flooding of crop plants such as wheat and rice (see references in Munns 2002;Colmer and Flowers 2008). Physiological adaptation to salt marsh environments also occurs at the intraspecific level with populations originating in salt marshes having greater salt tolerance (Rozema et al 1978) and flooding tolerance (Davies and Singh 1983) than populations originating from non-saline or non-flooded habitats. In the hot spring context, the ability of halophytes to continue to regulate salt relations rapidly (Flowers 1985) when flooded, and more importantly waterlogged, is of relevance, as the latter, associated with anoxia, can reduce salt tolerance in glycophytes (e.g.…”

Section: Salinitymentioning

confidence: 98%

Yellowstone hot spring environments and the palaeo-ecophysiology of Rhynie chert plants: towards a synthesis

Channing

Edwards

2009

Plant Ecology & Diversity

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Background:The Rhynie chert, Aberdeenshire, encapsulates the ecophysiological and anatomical information on all components, including plants, animals and micro-organisms, of an early terrestrial ecosystem as it existed some 400 million years ago (Early Devonian), as preserved by siliceous waters emanating from a hot spring system. Aims: This paper concentrates on the higher plants (tracheophytes) and brings together information on the habitats of the plants and the environmental pressures that they endured to answer issues relating to their endemism and their ecophysiology. Methods & Results:The synthesis includes detailed information on the palaeo-environments recorded in the chert, plus anatomical and autecological data from the plants themselves, and makes comparisons with the abiotic and biotic data obtained from an extant analogue, the alkali-chloride geothermal systems at Yellowstone National Park. Particular attention is paid to the physiological basis and evolution of osmotic and chemical tolerance of halophytes, the dominant colonisers of Yellowstone's wetlands and, to a lesser extent, metallophytes. Conclusions: The Rhynie plants colonised wetlands at the low temperature fringes of a hot spring system and were versatile, but physiologically highly specialised, capable of withstanding osmotic and chemical stresses in a dynamic environment, but were probably out-competed by mesophytic vegetation elsewhere.

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Population differentiation within Festuca rubra L. with regard to soil salinity and soil water

Cited by 63 publications

References 24 publications

Ecophysiological adaptations of coastal halophytes from foredunes and salt marshes

Ecophysiological adaptations of coastal halophytes from foredunes and salt marshes

The infection of Festuca rubra subsp. pruinosa by Epichloë festucae

Yellowstone hot spring environments and the palaeo-ecophysiology of Rhynie chert plants: towards a synthesis

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