Restrictions in the sprouting ability of an invasive coastal plant, Ammophila arenaria, from fragmented rhizomes

Plant Ecology ◽  
2016 ◽  
Vol 217 (5) ◽  
pp. 521-532 ◽  
Author(s):  
Teresa M. Konlechner ◽  
David A. Orlovich ◽  
Michael J. Hilton
Keyword(s):  
Ammophila Arenaria ◽  
Sprouting Ability ◽  
Coastal Plant

scholarly journals The Adaptive Power of Ammophila arenaria: Biomimetic Study, Systematic Observation, Parametric Design, and Experimental Tests with Bimetal

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2554
Author(s):  
Tarciana Araújo Brito de Andrade ◽  
José Nuno Dinis Cabral Beirão ◽  
Amilton José Vieira de Arruda ◽  
Cristina Cruz
Keyword(s):  
Parametric Design ◽  
Experimental Tests ◽  
Ammophila Arenaria ◽  
Systematic Observation ◽  
Natural Movement ◽  
Biomimetic Approach ◽  
Three Stages ◽  
Adaptive Power ◽  
Response To Temperature ◽  
Opening And Closing

The aim of our study was to apply a biomimetic approach, inspired by the Ammophila arenaria. This organism possesses a reversible leaf opening and closing mechanism that responds to water and salt stress (hydronastic movement). We adopted a problem-based biomimetic methodology in three stages: (i) two observation studies; (ii) how to abstract and develop a parametric model to simulate the leaf movement; and (iii) experiments with bimetal, a smart material that curls up when heated. We added creases to the bimetal active layer in analogy to the position of bulliform cells. These cells determine the leaf-closing pattern. The experiments demonstrated that creases influence and can change the direction of the bimetal natural movement. Thus, it is possible to replicate the Ammophila arenaria leaf-rolling mechanism in response to temperature variation and solar radiation in the bimetal. In future works, we will be able to propose responsive facade solutions based on these results.

Possible Role of Rhizosphere Bacteria in the Nitrogen Nutrition of Ammophila Arenaria

Nature ◽  
1964 ◽  
Vol 202 (4931) ◽  
pp. 467-469 ◽  
Author(s):  
M. G. HASSOUNA ◽  
P. F. WAREING
Keyword(s):  
Nitrogen Nutrition ◽  
Rhizosphere Bacteria ◽  
Ammophila Arenaria

Coastal Observations: Rapid development and colonization of a UK sand dune system

Shore & Beach ◽  
2021 ◽  
pp. 17-21
Author(s):  
A.T. Williams
Keyword(s):  
Sand Dune ◽  
Rapid Development ◽  
Sea Buckthorn ◽  
Ammophila Arenaria ◽  
Couch Grass ◽  
Dune System ◽  
Dune Systems ◽  
Frontal Part ◽  
Agrostis Tenuis ◽  
South Wales

Between the years 1200 and 1600, vast quantities of sand were brought inshore from offshore bars as a result of centuries of ferocious storms, to form a series of dune systems along the South Wales coastline. Today, as a result of many housing, leisure, and industrial developments only a few remnants exist. On one such remnant at Porthcawl, Wales, UK, became a caravan site in the 1930s, which was abandoned in 1993 for political reasons. Within 27 years a minimum of 120,000 m3 of sand was transported from the adjacent beach and formed dunes >4 m in height along a 400- m frontal edge that extended some 130 m inland, approximately a third of the site. Typical vegetation found along the frontal part of the system are Ammophila arenaria (marram), Agropyron junceiforme (sand couch grass) and Euphorbia maritimum (spurge). To the rear of the system, vegetation included Agrostis tenuis and stolonifera, (bent and creeping bent grass), Cirsium avense (creeping thistle), and Caluna vulgaris (heather). A 4-m-high and c. 3000m2 area of a vigorous stand of Hippophae rhamnoides (sea buckthorn) has also formed. The rapidity of dune formation and vegetation colonization is staggering.

Coastal sand dunes as biological systems

1989 ◽  
Vol 96 ◽  
pp. 17-36 ◽  
Author(s):  
A. J. Willis
Keyword(s):  
Sand Dunes ◽  
Coastal Dunes ◽  
Nutrient Status ◽  
Large Animal ◽  
Ammophila Arenaria ◽  
Physiological Level ◽  
Tyria Jacobaeae ◽  
Ecological Importance ◽  
Dune Plants ◽  
Stress Metabolites

SynopsisWith the gradation of intensities of environmental factors from the strand-line to stable inland areas, coastal dunes show many ecological phenomena especially clearly. These are reviewed broadly, with some emphasis on topics on which important advances are being made. The nutrient status of dune soil and changes with time are shown with reference to several dune systems. Changes in major nutrients are given for Braunton Burrows, north Devon, where the influence of nitrogen fixation by Lotus corniculatus is illustrated. The effects of sand burial on plants are considered, and details given of the root systems of vigorous and relict marram; factors which may affect its decline in vigour are reviewed. Also discussed is the likely significance of nematodes in the decline of Hippophaë rhamnoides. Reasons for the richness of the dune flora are considered and also some autecological studies. At the physiological level, reference is made to the water relations of plants and at the biochemical level to the occurrence and possible ecological importance of stress metabolites. Life strategies, phenology, survivorship, competition and the population ecology of dune plants are reviewed and also the interaction of ragwort (Senecio jacobaea) and cinnabar moth (Tyria jacobaeae). The population genetics of dune plants is illustrated by reference to Festuca rubra and Ammophila arenaria and of animals to Cepaea nemoralis.The abundance and ecological relationships of the invertebrate fauna are exemplified by surveys at Spurn Point, extensive investigations on spiders and the influence of marram on arthropod communities. The ecology of the natterjack load is considered in relation to conservation and the effects of large animal grazers in relation to the diversity of vegetation.

Cellulose nanofibrils (CNFs) from Ammophila arenaria, a natural and a fast growing grass plant

2018 ◽  
Vol 107 ◽  
pp. 530-536 ◽  
Author(s):  
Zayneb Jebali ◽  
Abdelkader Nabili ◽  
Hatem Majdoub ◽  
Sami Boufi
Keyword(s):  
Cellulose Nanofibrils ◽  
Ammophila Arenaria ◽  
Fast Growing

scholarly journals Aromatic Polyketides from a Symbiotic Strain Aspergillus fumigatus D and Characterization of Their Biosynthetic Gene D8.t287

Marine Drugs ◽  
2020 ◽  
Vol 18 (6) ◽  
pp. 324
Author(s):  
Yi Hua ◽  
Rui Pan ◽  
Xuelian Bai ◽  
Bin Wei ◽  
Jianwei Chen ◽  
...  
Keyword(s):  
Aspergillus Fumigatus ◽  
Polyketide Synthase ◽  
Gene Knockout ◽  
Gene Clusters ◽  
Inhibitory Effect ◽  
Genomic Feature ◽  
Biosynthetic Gene ◽  
Aromatic Polyketides ◽  
Staphyloccocus Aureus ◽  
Coastal Plant

The chemical investigation of one symbiotic strain, Aspergillus fumigatus D, from the coastal plant Edgeworthia chrysantha Lindl led to the isolation of eight compounds (1–8), which were respectively identified as rubrofusarin B (1), alternariol 9-O-methyl ether (2), fonsecinone D (3), asperpyrone A (4), asperpyrone D (5), fonsecinone B (6), fonsecinone A (7), and aurasperone A (8) by a combination of spectroscopic methods (1D NMR and ESI-MS) as well as by comparison with the literature data. An antimicrobial assay showed that these aromatic polyketides exhibited no remarkable inhibitory effect on Escherichia coli, Staphyloccocus aureus and Candida albicans. The genomic feature of strain D was analyzed, as well as its biosynthetic gene clusters, using antibiotics and Secondary Metabolite Analysis Shell 5.1.2 (antiSMASH). Plausible biosynthetic pathways for dimeric naphtho-γ-pyrones 3–8 were first proposed in this work. A non-reducing polyketide synthase (PKS) gene D8.t287 responsible for the biosynthesis of these aromatic polyketides 1–8 was identified and characterized by target gene knockout experiment and UPLC-MS analysis.

scholarly journals Results of Chernovskoe Reservoir hydro botanical monitoring from 1974 to 2015

2017 ◽  
Vol 6 (1) ◽  
pp. 77-82
Author(s):  
Vera Valentinovna Solovieva
Keyword(s):  
Dynamic Equilibrium ◽  
Floristic Diversity ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Important Indicator ◽  
Vegetation Growth ◽  
The Past ◽  
Coastal Plant ◽  
Level Lowering ◽  
Water Vegetation

Features of reservoirs use make it necessary to collect, analyse and synthesise environmental information about the state of hydroecosystems with a purpose of their development forecast. Overgrowing processes are an important indicator of ecosystem. The following paper contains the results of the study of Chernovskoe reservoir flora and vegetation in different years. Floristic diversity is compared with other reservoirs and hydro botanic information about them has already been published in a number of the authors papers. The comparative analysis has shown that the overall composition of reservoirs flora is random, while there is some regularity in the environmental spectrum - each of them is characterized by a small number of aquatic species and by the dominance of coastal plant species. The study of Chernovskoe reservoir vegetation has shown that the composition of dominants has changed over the past 40 years, from 1974 to 2015. There is a dominance of air water vegetation above the water one, but the borders of the water vegetation growth have widened. Chernovskoe reservoir is currently in dynamic equilibrium. The lifetime of aquatic ecosystem at this stage may be unlimited if there is an unstable hydro regime and impulsive character of water use. The reservoir water level lowering may lead to overgrowth and accelerate activation of waterlogging.

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