Flora do Rio de Janeiro: Menyanthaceae

Barcelos, Flávia Regina Baptista; Bove, Claudia Petean

doi:10.1590/2175-7860201768113

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…The plant has two stem structures, a rhizome and a stoloniferous stem, horizontal to the substrate, with petioles that, when not branching on the surface of the water, emit only a floating leaf (Souza & Lorenzi, 2005;Tippery & Les, 2011;Barcelos & Bove, 2017). Petioles can reach up to 300 cm length and are submerged (Pott & Pott, 2000).…”

Section: Received On February 23 2018; Accepted On January 15 2019mentioning

confidence: 99%

“…Petioles can reach up to 300 cm length and are submerged (Pott & Pott, 2000). The leaves attached to the petiole, when in aquatic environment, remain with the abaxial surface in contact with water (Barcelos & Bove, 2017). Flowers emerge at the end of spring from the submerged portion of the petiole, a few centimeters from the water surface and remain open for only one day.…”

Section: Received On February 23 2018; Accepted On January 15 2019mentioning

confidence: 99%

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Using White Star (Nymphoides humboldtiana) for lake landscaping

et al. 2019

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White Star (Nymphoides humboldtiana), an aquatic-environmental native species of Brazilian flora, was selected in order to be used as ornamental plant in lakes. White Star plants were submitted to two water levels (high water level, up to 30 cm water depth and, low water level until substrate saturation) and two light intensities (full sun and 50% shading) to evaluate vegetative and flowering development. The experimental design was completely randomized, in a subplot scheme, being the water level the main plot and luminosity the subplot. Seven replicates were performed, and the sample unit consisted of one plant. Data related to number of leaves and flowers, length and diameter of petioles and leaf area were submitted to analyze of variance and regression. We observed an increase in number of leaves and flowers in the treatment of high water level in full sun, and an increase of petiole length in high water level with shading. No difference between leaf area of plants grown under full sun and with shading (p<0.05) was observed. At low water level, plants presented lower vegetative development than those grown at high water level, besides the flowering inhibition in shaded condition. These results demonstrated that White Star can be used in ornamental lakes with a water depth of at least 20 cm above the rhizome and exposed to full sun.

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Section: Received On February 23 2018; Accepted On January 15 2019mentioning

confidence: 99%

Section: Received On February 23 2018; Accepted On January 15 2019mentioning

confidence: 99%

Using White Star (Nymphoides humboldtiana) for lake landscaping

et al. 2019

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“…1) had been identifying the collections of Nymphoides humboldtiana as Nymphoides indica, however Tippery & Les (2011) showed, based on nuclear molecular data, the distinction between Nymphoides indica and Nymphoides humboldtiana and that the first is related to the Paleotropical Region. Thus, Barcelos & Bove (2017) identified the specimens occurring in the state only as Nymphoides humboldtiana (Fig. 5e).…”

Section: Phytosociological Inventorymentioning

confidence: 99%

Structure and floristics of the plant community in Lagoa do São Bento, Maricá, Rio de Janeiro state, Brazil

et al. 2023

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Lagoa do São Bento is a coastal restinga wetland, remnant of a paleolake, located in Maricá, RJ. The study aimed to inventory native aquatic plants, make a floristic comparison with other coastal lagoons and analyze the regeneration of this community after anthropic impacts. In the floristic analysis of aquatic plants, 45 species were listed, 39 of which are Angiosperms and six are Ferns. Aeschynomene paniculata, Hymenachne amplexicaulis, Montrichardia linifera and Torenia thouarsii are new records for the municipality and Tabebuia cassinoides is threatened. Emerging plants (21 spp.) stand out, followed by amphibians (16 spp.), free floating (4 spp.), fixed floating (3 spp.) and tolerant (1 sp.). The comparison showed greater similarity with the Jacarepiá lagoon, in Saquarema, sharing 21 species. The phytosociological inventory listed 87 species, 83 of which were Angiosperms and four Ferns. The species with the highest IVI were: Fuirena umbellata, Pleroma gaudichaudianum, Xyris jupicai, Typha domingensis, Salvinia aff. auriculata, Eleocharis interstincta, Rhynchospora gigantea, Nymphoides humboldtiana, Nymphaea caerulea and Clitoria laurifolia. Shannon, Simpson and equity indexes were 3.83, 0.03 and 0.85, respectively. Native aquatic species represent the majority of the total inventoried (54%), with a considerable supply of exotic and ruderal, whose colonization reflects the anthropic interventions.

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“…Nymphoides humboldtiana (Kunth) Kuntze (Menyanthaceae) is a perennial Neotropical species commonly found in all Brazilian aquatic biomes (Giulietti, 2016;Barcelos and Bove, 2017). It is described as a rooted plant with floating leaves attached to the petiole and with the abaxial surface in contact with the water, rhizome and stems submerged, flowers emerged above the water surface through a reproductive elongated internode (Tippery et al, 2012), and fruits developed under water (Tedesco et al, 2019).…”

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confidence: 99%

Differential susceptibility of distinct parts of the aquatic plant Nymphoides humboldtiana to herbivory supports the optimal defense theory

Nocchi

Pereira

Duarte

et al. 2021

American J of Botany

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The optimal defense theory (ODT) predicts that the allocation of chemical defenses in plants will be concentrated in parts or tissues that are of higher fitness value for the individuals that produce them. Chemicals are known to be allocated to certain parts of aquatic plants, and the morphological architecture of Nymphoides humboldtiana, a species that exposes its parts to different environmental factors and consumers, may be an excellent model to evaluate within-plant susceptibility to consumers according to the ODT. Methods: Under laboratory experimental conditions, we evaluated the defensive properties of extracts from vegetative (leaves, rhizomes, roots) and reproductive (long stem internodes, flowers, fruits) parts of N. humboldtiana against consumption by the generalist herbivorous gastropod Biomphalaria glabrata. Extracts were also subjected to chemical analysis by high-performance liquid chromatography, principal component analysis, and analysis of their relationships to defensive actions. Results: Extracts of all vegetative and internode (reproductive) parts of N. humboldtiana exhibited defensive properties against B. glabrata, but the long stem internodes exhibited the highest percentage of inhibition. Chemical profiles of these parts were qualitatively and quantitatively different, but a major unidentified compound is presumably responsible for the higher defensive property found in internodes. Conclusions: Our results support the ODT, since chemical defense was more effective in long stem internodes, which have a high fitness value for N. humboldtiana to keep the flowers emerged on the water surface in response to the rapid and dynamic changes in water levels typical of freshwater environments.

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Flora do Rio de Janeiro: Menyanthaceae

Cited by 3 publications

References 7 publications

Using White Star (Nymphoides humboldtiana) for lake landscaping

Using White Star (Nymphoides humboldtiana) for lake landscaping

Structure and floristics of the plant community in Lagoa do São Bento, Maricá, Rio de Janeiro state, Brazil

Differential susceptibility of distinct parts of the aquatic plant Nymphoides humboldtiana to herbivory supports the optimal defense theory

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