Ludwigia stolonifera , insight into its phenotypic plasticity, habitat diversity and associated species

Soliman, Ashraf; Hamdy, Rim; Hamed, Azza B.

doi:10.21608/ejbo.2018.5268.1217

Cited by 7 publications

(5 citation statements)

References 42 publications

(47 reference statements)

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“…Thus, species replacement or biotic exchange is low [53]. It is noticed that the dense canopy of tall-growing species along the water edge (e.g., Phragmites australis) makes the germination and growth of other species more difficult, often leading to the reduction in the species diversity [54].…”

Section: Discussionmentioning

confidence: 99%

Vegetation Analysis and Environmental Relationships of Riverain Plants in the Aswan Reservoir, Egypt

Abbas

Ayed

Sheded

et al. 2021

Plants

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The present study analyses plant diversity and evaluates the relationship between edaphic variables and the distribution and grouping of plant species in the Aswan Reservoir area, South Egypt. The dominant families were Fabaceae, Poaceae, and Asteraceae, forming 38.82% of the total flora recorded. The main bulk of the flora recorded (50.59%) belonged to the cosmopolitan, neotropical, pantropical, and palaeotropical chorotypes. A TWINSPAN analysis produced 10 vegetation clusters. Inundation levels showed a high correlation with species richness. The seasonally inundated area in Bute El-Hasaya and Maezana Belal (cluster V) had the highest species richness (36.50), while the lowest species richness (4.50) was in the shoreline of Philae, Awad, and Heisa islands (cluster IX). The DCA ordination depicted the environmental gradient expressed by the cluster analysis, and the resulting vegetation groups represented a distinct microhabitat. The CCA ordination indicates that the separation of vegetation group (A) along the axis was affected by the concentration of K, Mg, and CO3, and the vegetation group (B) was significantly associated with the total dissolved salts and the concentration of Cl. Moreover, the vegetation group (C) correlated significantly with pH, electrical conductivity, organic matter content, and SO3, HCO3, PO4, Na, and Ca concentrations.

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Section: Discussionmentioning

confidence: 99%

Vegetation Analysis and Environmental Relationships of Riverain Plants in the Aswan Reservoir, Egypt

Abbas

Ayed

Sheded

et al. 2021

Plants

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“…As reported by Galal et al (2012) , it is one of the commonest aquatic plants in the Nile Delta watercourses as well as in the Egyptian Northern Lakes. Water primrose forms dense mats, which retard the water flow and block the whole watercourse as well as threaten biodiversity ( Soliman et al, 2018 , Galal et al, 2019a ). Water primrose can grow out from the water bank for a great distance to support floats ( Abu-Ziada 2007 ).…”

Section: Methodsmentioning

confidence: 99%

Nutrient sequestration potential of water primrose Ludwigia stolinefera (Guill. & Perr.) P.H. Raven: A strategy for restoring wetland eutrophication

Galal

Alhmad

Al-Yasi

2021

Saudi Journal of Biological Sciences

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The current work investigates the capacity of the water primrose ( Ludwigia stolinefera ) to sequester inorganic and organic nutrients in its biomass to restore eutrophic wetlands, besides its nutritive quality as fodder for animals. The nutrient elements and nutritive value of the water primrose were assessed seasonally in polluted and unpolluted watercourses. The water primrose plants’ highest biomass was attained during summer; then, it was significantly reduced till it reached its lowest value during winter. In the polluted canal, the plant root and shoot accumulated higher contents of all nutrient elements (except Na and Mg) rather than in the unpolluted Nile. They accumulated most investigated nutrients in the growing season during summer. The shoots accumulated higher contents of N, P, Ca, and Mg than the root, which accumulated higher concentrations of Na and K. Therefore, summer season is the ideal time to harvest water primrose for removing the maximum nutrients for restoring eutrophic watercourses. The aboveground tissues had the highest values of ether extract (EE) during spring and the highest crude fibers (CF) and total proteins (TP) during summer. In contrast, the belowground tissues had the lowest EE, CF, and TP during winter. In spring, autumn, and winter seasons, the protein content in the grazeable parts (shoots) of the water primrose was within the range, while in summer, it was higher than the minimum requirement for the maintenance of animals. There was a decrease in crude fibers and total proteins, while an increase in soluble carbohydrates content in the below- and above-ground tissues of water primrose under pollution stress. The total protein, lipids, and crude fibers of the aboveground parts of water primrose support this plant as a rough forage.

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“…In any case, for this tree, we can see that Lo stands apart from the other Ludwigia sp., Lpm and Lgh , and that the L. grandiflora subsp. hexapetala belongs to the same branch as the species L. ovalis (aquatic taxon used in aquariums [66]), L. stolonifera (native to the Nile, found in a variety of habitats, from freshwater wetlands to brackish and marine waters) [67] and L. adscendens (common weed of rice fields in Asia) [68]. Lpm is in a branch unique to its species but close to the L. grandiflora subsp.…”

Section: Resultsmentioning

confidence: 99%

Sequencing, de novo assembly ofLudwigiaplastomes, and comparative analysis within the Onagraceae family

Barloy-Hubler,

Le Gac,

Boury

et al. 2023

Preprint

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Background: The Onagraceae family, which belongs to the order Myrtales, consists of approximately 657 species and 17 genera, including the genus Ludwigia L., which is comprised of 82 species. There are few genomic resources for Onagraceae, which limits phylogenetic and population genetics, as well as genomic studies. In this study, new complete plastid genomes of Ludwigia grandiflora subps. hexapetala (Lgh) and Ludwigia peploides subsp montevidensis (Lpm) were generated using a combination of different sequencing technologies. These plastomes were then compared to the published Ludwigia octovalvis (Lo) plastid genome, which was re-annotated by the authors. Results: We initially sequenced and assembled the chloroplast (cp) genomes of Lpm and Lgh using a hybrid strategy. We observed the existence of two Lgh haplotypes and two potential Lpm haplotypes. Lgh, Lpm, and Lo plastomes were similar in terms of genome size, gene number, structure, and inverted repeat (IR) boundaries, comparable to other species in the Myrtales order. A total of 45 to 65 SSRs (simple sequence repeats), were detected, depending on the species, with the majority consisting solely of A and T, which is common among angiosperms. Four chloroplast genes (matK, accD, ycf2 and ccsA) were found under positive selection pressure, which is commonly associated with plant development, and especially in aquatic plants such as Lgh, and Lpm. Conclusion: Our hybrid sequencing approach revealed the presence of two Lgh plastome haplotypes which will help to advance phylogenetic and evolutionary studies, not only specifically for Ludwigia, but also the Onagraceae family and Myrtales order. To enhance the robustness of our findings, a larger dataset of chloroplast genomes would be beneficial.

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Ludwigia stolonifera , insight into its phenotypic plasticity, habitat diversity and associated species

Cited by 7 publications

References 42 publications

Vegetation Analysis and Environmental Relationships of Riverain Plants in the Aswan Reservoir, Egypt

Vegetation Analysis and Environmental Relationships of Riverain Plants in the Aswan Reservoir, Egypt

Nutrient sequestration potential of water primrose Ludwigia stolinefera (Guill. & Perr.) P.H. Raven: A strategy for restoring wetland eutrophication

Sequencing, de novo assembly ofLudwigiaplastomes, and comparative analysis within the Onagraceae family

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