scholarly journals Effect of Trampling on Ambrosia chamissonis and Cakile maritima Cover on California Beaches

Madroño ◽  
2013 ◽  
Vol 60 (1) ◽  
pp. 4-10 ◽  
Author(s):  
Michele M. Tobias
Keyword(s):  
Cakile Maritima ◽  
Ambrosia Chamissonis

scholarly journals Expansion of Genetic Diversity in Randomly Mating Founder Populations of Alternaria brassicicola Infecting Cakile maritima in Australia

2010 ◽  
Vol 76 (6) ◽  
pp. 1946-1954 ◽  
Author(s):  
C. C. Linde ◽  
J. A. Liles ◽  
P. H. Thrall
Keyword(s):  
Genetic Diversity ◽  
Plant Pathogens ◽  
Isolation By Distance ◽  
Population Expansion ◽  
Alternaria Brassicicola ◽  
Evolutionary Potential ◽  
Recent Population Expansion ◽  
Fungal Plant Pathogens ◽  
Cakile Maritima ◽  
Founder Populations

ABSTRACT Founder populations of fungal plant pathogens are expected to have low levels of genetic diversity coupled with further genetic drift due to, e.g., limited host availability, which should result in additional population bottlenecks. This study used microsatellite markers in the interaction between Cakile maritima and the fungal pathogen Alternaria brassicicola to explore genetic expectations associated with such situations. The host, C. maritima, was introduced into Australia approximately 100 years ago, but it is unknown whether the pathogen was already present in Australia, as it has a wide occurrence, or whether it was introduced to Australia on brassicaceous hosts. Eleven A. brassicicola populations were studied, and all showed moderate levels of gene and genotypic diversity. Chi-square tests of the frequencies of mating type alleles, a large number of genotypes, and linkage equilibrium among microsatellite loci all suggest A. brassicicola reproduces sexually. Significant genetic differentiation was found among populations, but there was no evidence for isolation by distance effects. Bayesian analyses identified eight clusters where the inferred clusters did not represent geographical populations but instead consisted of individuals admixed from all populations. Further analysis indicated that fungal populations were more likely to have experienced a recent population expansion than a population bottleneck. It is suggested that A. brassicicola has been introduced into Australia multiple times, potentially increasing the diversity and size of any A. brassicola populations already present there. Combined with its ability to reproduce sexually, such processes appear to have increased the evolutionary potential of the pathogen through recent population expansions.

Cytotoxic, apoptotic activities and chemical profiling of dimorphic forms of Egyptian halophyte Cakile maritima scop.

2021 ◽  
pp. 1-14
Author(s):  
Mohamed M. Tawfik ◽  
Bassant Galal ◽  
Mohamed S. Nafie ◽  
Mona M. EL Bous ◽  
Magdy I. El‐Bana
Keyword(s):  
Chemical Profiling ◽  
Cakile Maritima

scholarly journals Composition and Stability of the Oxidative Phosphorylation System in the Halophile Plant Cakile maritima

2019 ◽  
Vol 10 ◽  
Author(s):  
Nèjia Farhat ◽  
Sarra Hichri ◽  
Tatjana Manuela Hildebrandt ◽  
Ahmed Debez ◽  
Hans-Peter Braun
Keyword(s):  
Oxidative Phosphorylation ◽  
Oxidative Phosphorylation System ◽  
Cakile Maritima

scholarly journals Below-ground biomass of plants, with a key contribution of buried shoots, increases foredune resistance to wave swash

2019 ◽  
Author(s):  
Davide De Battisti ◽  
John N Griffin
Keyword(s):  
Erosion Resistance ◽  
Coastal Protection ◽  
Flume Experiments ◽  
Plant Component ◽  
Dune Erosion ◽  
Perennial Plants ◽  
Ground Biomass ◽  
Cakile Maritima ◽  
Below Ground ◽  
The Impact

Abstract Background and aims Sand dunes reduce the impact of storms on shorelines and human infrastructure. The ability of these ecosystems to provide sustained coastal protection under persistent wave attack depends on their resistance to erosion. Although flume experiments show that roots of perennial plants contribute to foredune stabilization, the role of other plant organs, and of annual species, remains poorly studied. Furthermore, it remains unknown if restored foredunes provide the same level of erosion resistance as natural foredunes. We investigated the capacity of three widespread pioneer foredune species (the perennial Ammophila arenaria and the annuals Cakile maritima and Salsola kali) to resist dune erosion, and compared the erosion resistance of Ammophila at natural and restored sites. Methods Cores collected in the field were tested in a flume that simulated a wave swash. A multi-model inference approach was used to disentangle the contributions of different below-ground compartments (i.e. roots, rhizomes, buried shoots) to erosion resistance. Key Results All three species reduced erosion, with Ammophila having the strongest effect (36 % erosion reduction versus unvegetated cores). Total below-ground biomass (roots, rhizomes and shoots), rather than any single compartment, most parsimoniously explained erosion resistance. Further analysis revealed that buried shoots had the clearest individual contribution. Despite similar levels of total below-ground biomass, coarser sediment reduced erosion resistance of Ammophila cores from the restored site relative to the natural site. Conclusions The total below-ground biomass of both annual and perennial plants, including roots, rhizomes and buried shoots, reduced dune erosion under a swash regime. Notably, we show that (1) annual pioneer species offer erosion protection, (2) buried shoots are an important plant component in driving sediment stabilization, and (3) management must consider both biological (plants and their traits) and physical (grain size) factors when integrating dunes into schemes for coastal protection.

Chemosystematics and taxonomy of Ambrosia chamissonis

1973 ◽  
Vol 1 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Willard W. Payne ◽  
Theodore A. Geissman ◽  
Anthony J. Lucas ◽  
Tamotsu Saitoh
Keyword(s):  
Ambrosia Chamissonis

Salt effect on growth, photosynthesis, seed yield and oil composition of the potential crop halophyte Cakile maritima

2007 ◽  
pp. 55-63 ◽  
Author(s):  
Ahmed Debez ◽  
Wael Taamalli ◽  
Dhouha Saadaoui ◽  
Zeineb Ouerghi ◽  
Mokhtar Zarrouk ◽  
...  
Keyword(s):  
Seed Yield ◽  
Salt Effect ◽  
Oil Composition ◽  
Cakile Maritima ◽  
Effect On Growth

scholarly journals Inheritance of breeding system in Cakile (Brassicaceae) following hybridization: implications for plant invasions

2019 ◽  
Vol 125 (4) ◽  
pp. 639-650 ◽  
Author(s):  
Chengjun Li ◽  
Mohsen B Mesgaran ◽  
Peter K Ades ◽  
Roger D Cousens
Keyword(s):  
Breeding System ◽  
Population Model ◽  
Pollen Viability ◽  
Plant Invasions ◽  
Quantitative Agreement ◽  
Fertilization Success ◽  
Breeding Systems ◽  
Success Rates ◽  
Cakile Maritima ◽  
Cakile Edentula

Abstract Background and Aims Hybridization is commonly assumed to aid invasions through adaptive introgression. In contrast, a recent theoretical model predicted that there can be non-adaptive demographic advantages from hybridization and that the population consequences will depend on the breeding systems of the species and the extent to which subsequent generations are able to interbreed and reproduce. We examined cross-fertilization success and inheritance of breeding systems of two species in order to better assess the plausibility of the theoretical predictions. Methods Reciprocal artificial crosses were made to produce F1, F2 and backcrosses between Cakile maritima (self-incompatible, SI) and Cakile edentula (self-compatible, SC) (Brassicaceae). Flowers were emasculated prior to anther dehiscence and pollen was introduced from donor plants to the recipient’s stigma. Breeding system, pollen viability, pollen germination, pollen tube growth and reproductive output were then determined. The results were used to replace the assumptions made in the original population model and new simulations were made. Key Results The success rate with the SI species as the pollen recipient was lower than when it was the pollen donor, in quantitative agreement with the ‘SI × SC rule’ of unilateral incompatibility. Similar outcomes were found in subsequent generations where fertile hybrids were produced but lower success rates were observed in crosses of SI pollen donors with SC pollen recipients. Much lower proportions of SC hybrids were produced than expected from a single Mendelian allele. When incorporated into a population model, these results predicted an even faster rate of replacement of the SC species by the SI species than previously reported. Conclusions Our study of these two species provides even clearer support for the feasibility of the non-adaptive hybridization hypothesis, whereby the colonization of an SI species can be assisted by transient hybridization with a congener. It also provides novel insight into reproductive biology beyond the F1 generation.

scholarly journals Phenolic Profile, Toxicity, Enzyme Inhibition, In Silico Studies, and Antioxidant Properties of Cakile maritima Scop. (Brassicaceae) from Southern Portugal

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 142 ◽  
Author(s):  
Chloé Placines ◽  
Viana Castañeda-Loaiza ◽  
Maria João Rodrigues ◽  
Catarina G. Pereira ◽  
Azzurra Stefanucci ◽  
...  
Keyword(s):  
Mammalian Cells ◽  
High Performance ◽  
Antioxidant Properties ◽  
Ethanol Extract ◽  
Docking Studies ◽  
In Silico Studies ◽  
Cakile Maritima ◽  
Southern Portugal ◽  
Kaempferol Glycosides ◽  
Ethanol Extracts

Cakile maritima Scop. (sea rocket) is an edible halophyte plant with several ethnomedicinal uses. This work reports the chemical profile and bioactivities of food grade extracts from sea rocket organs. Toxicity was determined on mammalian cells, and phenolic profiling and the quantitation of the main metabolites were made by high-performance liquid chromatography coupled to mass spectrometry (HPLC-MS). Enzymatic inhibition was determined towards acetyl- and butyrylcholinesterase (AChE, BuChE), α-glucosidase, α-amylase, and tyrosinase. Docking studies were performed to tyrosinase, on the major metabolites, and samples were tested for antioxidant properties. Extracts were not toxic, were constituted mainly by flavonoids, and some compounds (roseoside and oleuropein) are here described for the first time in the species. The aerial organs’ ethanol extract had relevant activity towards 2,2-diphenyl-1-picrylhydrazyl [DPPH, half maximal inhibitory concentration (IC50) = 0.59 mg/mL], and ferric-reducing activity power (FRAP, IC50 = 0.99 mg/mL). All samples were more active towards AChE than on BuChE. The ethanol fruits’ extract inhibited α-glucosidase [2.19 mmol of equivalent of acarbose (ACAE)/g]. Samples were active against tyrosinase, especially the aerial organs’ ethanol extracts [25.9 mg of equivalent of kojic acid (KAE)/g]. Quercetin and kaempferol glycosides fit well into the enzymatic pocket of tyrosinase. Our results suggest sea rocket as a candidate to be further explored as a source of bioactive products.

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