Optimization of aquatic-terrestrial ecosystem in relation to soil nitrogen status for the cultivation of fish and aquatic food crops of the Indian subtropics. (1/10)
A case study was undertaken during wet and postwet seasons to improve the perennial and alternate submerged saucer-shaped ponded lands (tal and semi-tal lands) in the coasts and northeastern plains of the Indian subtropics through pisciculture and cultivation of starch- and protein-rich aquatic food crops like water chestnut (Trapa bispinosa Roxb.) and makhana or fox nut (Euryale ferox Salisb.). The study revealed that the physico-chemical properties of soils (pH, organic C, organic matter, available N, P, and K) as well as quality of water (pH, EC, BOD, COD, CO3 +, HCO3-, NO3-N, SO4-S-, and Cl-), growing fish, makhana, and water chestnut was remarkably influenced by different moisture regimes and exhibited a significant improvement of soil health. The amount of organic C, available N, P, and K content were found significantly highest in the treatment where makhana was grown under alternate flooding and drying situation with a depth >2 m as compared to other treatments. Such enrichment of soil fertility, particularly in available N and P content, might be due to the accumulation of considerable amounts of biomass and fish excreta and their subsequent decomposition in situ in the soils. Therefore, the present study suggests that the N-enriched soil may effectively be utilized further for growing subsequent arable crops surroundings during summer season, which not only saves the amount of applied N fertilizer but also increases the apparent N efficiency with simultaneous increase in yield, and would benefit the farmers in this region. (+info)Stable isotope food web analysis of a large subtropical lake: alternative explanations for 15N enrichment of pelagic vs. littoral fisheries. (2/10)
The food webs of littoral, pelagic, and littoral-pelagic ecotone (interface) regions of a large subtropical lake were investigated using stable isotope ratio methods, expanding the focus of a previous fish-only study to include other food web components such as primary producers and invertebrates. In these food webs, delta13C increased approximately 4 per thousand and delta15N increased approximately 10 per thousand from primary producers to fish. The delta15N of fish was approximately 9 per thousand in the littoral zone, approximately 10 per thousand in the ecotone, and approximately 12 per thousand in the pelagic zone. The cross-habitat enrichment in fish 15N corresponded with both an increase in the size of fish and an increase in the d15N of primary consumers (mollusks). Despite larger body size in the pelagic zone, fish in all three habitats appear to occur at the same average trophic level (TL = 4), assuming an enrichment factor of 3.4 per thousand per trophic level, and normalizing to the delta15N of primary consumers. (+info)Odor-taste interactions: effects of attentional strategies during exposure. (3/10)
Through repeated pairings with a tastant such as sucrose, odors are able to take on the tastant's qualities, e.g. by becoming more sweet smelling. When such odors are subsequently experienced with a sweet tastant in solution, the mixture is often given a higher sweetness rating than the tastant alone. Odor-induced taste enhancement appears to be sensitive to whether an odor-taste combination is viewed analytically as a set of discrete qualities, or synthetically as a flavor. The present research attempted to determine if adoption of these different perceptual approaches during co-exposure with sucrose would influence the extent to which an odor would become sweet smelling and subsequently enhance sweetness intensity. In Experiment 1, subjects received multiple exposures to mixtures of sucrose with low sweetness, low familiarity odors or, as a control, the odors and sucrose solutions separately. Two groups that received mixtures made intensity ratings that promoted either synthesis or analysis of the individual elements in the mixtures. The odors became sweeter smelling irrespective of group. Only adopting a synthetic strategy produced odors that enhanced sweetness in solution. However, these effects were also shown with a 'non-exposed' control odor. This could be accounted for if the single co-exposure with sucrose that all odors received in the pre-test was able to produce sweeter odors. A second experiment confirmed this prediction. Thus, while even a single co-exposure with sucrose is sufficient to produce a sweeter odor, the adoption of a synthetic perceptual strategy during the co-exposure is necessary to produce an odor that will enhance sweetness. These data are consistent with associative leaning accounts of how odors take on taste qualities and also support the interpretation that these effects reflect the central integration of odors and tastes into flavors. (+info)Curtobacterium ammoniigenes sp. nov., an ammonia-producing bacterium isolated from plants inhabiting acidic swamps in actual acid sulfate soil areas of Vietnam. (4/10)
The ammonia-producing bacteria B55(T), CA73, SA69 and SA72 were isolated from the waterweeds Ludwigia adscendens (B55(T)) and Eleocharis dulcis (CA73, SA69 and SA72) grown in highly acidic swamps (pH 2-4) in actual acid sulfate soil areas of Vietnam. The isolates were Gram-positive, irregular rod-shaped, non-spore-forming bacteria. On the basis of 16S rRNA gene sequence similarity, strain B55(T) was shown to belong to the genus Curtobacterium of the class Actinobacteria. Chemotaxonomic data (MK-9 as major isoprenoid quinone, d-ornithine as cell-wall diamino acid, acetyl as the acyl type of peptidoglycan) supported the affiliation of all four strains to this genus. Although their 16S rRNA gene sequence similarity was 99 % to species with validly published names within the genus, they formed a group that was distinct in the phylogenetic tree, and DNA-DNA relatedness values to these established species were less than 10 %. The results of physiological and biochemical tests and major fatty acids (cyclohexyl-C(17 : 0), anteiso-C(17 : 0) and cyclohexyl-C(19 : 0)) allowed phenotypic differentiation of these strains from the species of Curtobacterium with validly published names. Therefore, strains B55(T), CA73, SA69 and SA72 represent a novel species, for which the name Curtobacterium ammoniigenes sp. nov. is proposed. The type strain is B55(T) (=NBRC 101786(T)=VTCC D6-11(T)=JCM 14609(T)). (+info)Identification of major phenolic compounds of Chinese water chestnut and their antioxidant activity. (5/10)
Chinese water chestnut (CWC) is one of the most popular foods among Asian people due to its special taste and medical function. Experiments were conducted to test the antioxidant activity and then determine the major phenolic compound components present in CWC. CWC phenolic extract strongly inhibited linoleic acid oxidation and exhibited a dose-dependent free-radical scavenging activity against alpha,alpha-diphenyl-beta-picrylhydrazyl (DPPH) radicals, superoxide anions and hydroxyl radicals, which was superior to ascorbic acid and butylated hydroxytoluene (BHT), two commercial used antioxidants. Furthermore, the CWC extract was found to have a relatively higher reducing power, compared with BHT. The major phenolic compounds present in CWC tissues were extracted, purified and identified by high-performance liquid chromatograph (HPLC) as (-)-gallocatechin gallate, (-)-epicatechin gallate and (+)-catechin gallate. This study suggests that CWC tissues exhibit great potential for antioxidant activity and may be useful for their nutritional and medicinal functions. (+info)Burkholderia heleia sp. nov., a nitrogen-fixing bacterium isolated from an aquatic plant, Eleocharis dulcis, that grows in highly acidic swamps in actual acid sulfate soil areas of Vietnam. (6/10)
(+info)Burkholderia acidipaludis sp. nov., aluminum-tolerant bacteria isolated from Chinese water chestnut (Eleocharis dulcis) growing in highly acidic swamps in South-East Asia. (7/10)
(+info)Evaluation of in vitro antioxidant potential of aqueous extract of Trapa natans L. fruits. (8/10)
In the present study, the in vitro antioxidant potential of aqueous extract of Trapa natans L. fruits rind was investigated. The extract was found to contain a large amount of polyphenols and also exhibited an immense reducing ability. The total content of phenolic, flavonoid and tannin compounds was estimated as 63.81 mg of gallic acid equivalents/g of dry material, 21.34 mg of rutin equivalents/g of dry material and 17.11 mg of total tannin equivalent /g of dry material, respectively. IC50 values for different antioxidant model were calculated as 128.86 microg/mL for DPPH radicals, 97.65 microg/mL for O2*-, 148.32 microg/mL for H2O2 and 123.01 microg/mL for NO, respectively. Reducing power and inhibition of *OH radical-induced BSA oxidation were also determined. The data obtained in the present study suggest that the aqueous extract of Trapa natans L. fruit rind have significant antioxidant activity against free radicals. (+info)'Eleocharis' is a genus of grass-like plants in the sedge family (Cyperaceae). These plants are commonly known as spikerushes and are found in wetlands, marshes, and other damp habitats. They have small, inconspicuous flowers that are often surrounded by a spikelet or group of scales.
The name 'Eleocharis' comes from the Greek words 'helos,' meaning marsh or swamp, and 'charis,' meaning grace, and refers to the plant's graceful appearance in wetland habitats.
While 'Eleocharis' is not a medical term, some species of this genus have been used in traditional medicine for their diuretic, anti-inflammatory, and other medicinal properties. However, it is important to note that the safety and efficacy of using these plants as medicine have not been thoroughly studied or proven through scientific research. Therefore, it is recommended to consult with a healthcare professional before using any plant or herbal remedy for medicinal purposes.
Eleocharis
Eleocharis ovata
Eleocharis vivipara
Eleocharis macrostachya
Eleocharis pachycarpa
Eleocharis mamillata
Eleocharis microcarpa
Eleocharis palustris
Eleocharis fennica
Eleocharis nitida
Eleocharis jacobsiana
Eleocharis quadrangulata
Eleocharis sphacelata
Eleocharis triquetra
Eleocharis spiralis
Eleocharis sundaica
Eleocharis equisetoides
Eleocharis atropurpurea
Eleocharis radicans
Eleocharis halophila
Eleocharis brassii
Eleocharis cylindrostachys
Eleocharis caespitosissima
Eleocharis philippinensis
Eleocharis gracilis
Eleocharis torticulmis
Eleocharis rostellata
Eleocharis keigheryi
Eleocharis bolanderi
Eleocharis sanguinolenta
Eleocharis - Wikipedia
UCJEPS: Jepson Interchange: Eleocharis equisetoides Torr.
Maine Natural Areas Program Rare Plant Fact Sheet for Eleocharis engelmannii
ITIS - Report: Eleocharis montevidensis
mountain spikerush (Eleocharis montana) · iNaturalist
Eleocharis ochrostachys in Flora of China @ efloras.org
Eleocharis engelmannii var. detonsa Calflora
SEINet Portal Network - Eleocharis macrostachya
Eleocharis acicularis var. acicularis; Needle Spikerush
Flora of Zimbabwe: Species information: individual images: Eleocharis marginulata
Flora of Zimbabwe: Individual record no: 77874: Eleocharis atropurpurea
NameThatPlant.net: Eleocharis baldwinii
Eleocharis geniculata (Bent Spike-rush) Great Lakes Plains population: conservation in the face of invasion
Eleocharis nigrescens - Wikipedia
Eleocharis acicularis - Pondtrends
Description and images of Eleocharis sp. #3089 (), a native Chilean plant, provided by the supplier of native exotic Chilean...
Eleocharis palustris (Common Spikerush): Minnesota Wildflowers
Hairgrass Dwarf (Eleocharis acicularis ) Mat (10″x10″) - Aquarium Plants
Eleocharis pusilla (parvula)
EcoFlora - Eleocharis
Eleocharis geniculata - Excluded Name Details - NYFA: New York Flora Atlas
Eleocharis equisetina
Eleocharis sphacelata CYPERACEAE
Eleocharis parishii - FNA
Eleocharis palustris subsp. palustris
Eleocharis Acicularis - Ninfee Barbagli
CYPERACEAE2
- Eleocharis is a virtually cosmopolitan genus of 250 or more species of flowering plants in the sedge family, Cyperaceae. (wikipedia.org)
- [2] Ang Eleocharis nigrescens sakop sa kahenera nga Eleocharis , ug kabanay nga Cyperaceae . (wikipedia.org)
Parvula7
- common spikerush Eleocharis papillosa Latz Eleocharis parishii Britton - Parish's spikerush Eleocharis parvula (Roem. (wikipedia.org)
- mini' is very similar to Eleocharis parvula in appearance but it is a smaller plant which grows shorter than its predecessor. (aquariumplants.com)
- As a result this plant is very useful for creating a beautiful, lush, green carpet in your layout which has the added benefit of not requiring as much maintenance as the standard Eleocharis parvula since it does not grow as tall so trimming is reduced. (aquariumplants.com)
- The hairgrass offered under the name Eleocharis parvula forms a dense, low-growing (under 10 cm in height) light green lawn of hair-thin leaves. (aquasabi.com)
- Dwarf spikerush is often sold in trade under the name Eleocharis parvula. (aquasabi.com)
- Plants without well-developed bristles are otherwise typical Eleocharis parvula. (ngpherbaria.org)
- Eleocharis parvula is very uncommon inland. (ngpherbaria.org)
Acicularis3
- Eleocharis acicularis (L.) Roem. (wikipedia.org)
- Eleocharis acicularis var. (berkeley.edu)
- When cultivated submersed under identical conditions, Eleocharis pusilla differs from the long-known aquarium plant Eleocharis acicularis by its lesser height (in most cases clearly under 10 cm), a lighter shade of green and by stalks curving sideways. (aquasabi.com)
Genus1
- Classification of Eleocharis is unusually difficult because relatively few macroscopic characters are provided by the simple structure characteristic of the genus (only two leaves, basal, without blades or with only rudimentary blades, and unbranched aerial stems, each with a single terminal spikelet and without an involucral bract). (asu.edu)
Spikerush16
- J.Presl & C.Presl - purple spikerush Eleocharis baldwinii (Torr. (wikipedia.org)
- Eleocharis bella (Piper) Svenson - beautiful spikerush Eleocharis bifida S.G. Smith glade spikerush Eleocharis bolanderi A.Gray - Bolander's spikerush Eleocharis brassii S.T.Blake Eleocharis brittonii Svenson ex Small Eleocharis caespitosissima Baker Eleocharis cellulosa Torr. (wikipedia.org)
- coastal spikerush, Gulf Coast spikerush Eleocharis compressa Sull. (wikipedia.org)
- flatstem spikerush Eleocharis confervoides (Poir. (wikipedia.org)
- Red-stemmed spikerush Eleocharis filiculmis Kunth Eleocharis geniculata (L.) Roem. (wikipedia.org)
- Eleocharis halophila Fernald & Brackett - saltmarsh spikerush Eleocharis jacobsiana K.L.Wilson Eleocharis keigheryi K.L.Wilson Eleocharis kuroguwai Ohwi Eleocharis macrostachya Britton - pale spikerush Eleocharis montana (Kunth) Roem. (wikipedia.org)
- Eleocharis montevidensis Kunth - sand spikerush Eleocharis mutata (L.) Roem. (wikipedia.org)
- scallion grass Eleocharis nitida Fernald - neat spikerush Eleocharis nodulosa Schult. (wikipedia.org)
- blunt spikerush Eleocharis ochrostachys Steud. (wikipedia.org)
- black sand spikerush Eleocharis pachystyla (C.Wright) C.B.Clarke - false junco Eleocharis pallens S.T.Blake - pale spikerush Eleocharis palustris (L.) Roem. (wikipedia.org)
- dwarf spikerush, hairgrass Eleocharis pellucida J.Presl & C.Presl Eleocharis philippinensis Svenson Eleocharis plana S.T.Blake Eleocharis pusilla R.Br. (wikipedia.org)
- squarestem spikerush Eleocharis quinqueflora (Hartmann) O.Schwarz - fewflower spikerush Eleocharis radicans (A.Dietr. (wikipedia.org)
- Kunth - rooted spikerush Eleocharis rivalis K.L.Wilson Eleocharis rostellata (Torr. (wikipedia.org)
- beaked spikerush Eleocharis sanguinolenta K.L.Wilson Eleocharis sellowiana Kunth Eleocharis sphacelata R.Br. (wikipedia.org)
- tall spikerush Eleocharis spiralis (Rottb. (wikipedia.org)
- slender spikerush Eleocharis torticulmis S.G.Sm. (wikipedia.org)
Roem2
- Chinese water chestnut Eleocharis elegans (Kunth) Roem. (wikipedia.org)
- Eleocharis geniculata (L.) Roem. (usf.edu)
Palustris2
- Eleocharis palustris , formerly Eleocharis smallii , is one of several common, colony-forming Spikerushes in Minnesota and can be difficult to distinguish from some of the others, even when achenes are present. (minnesotawildflowers.info)
- North American Eleocharis includes some extremely difficult species complexes that need taxonomic revision: (1) The E. palustris complex (species 1-7) is discussed under 1. (asu.edu)
Montevidensis2
- Eleocharis parishii is very similar to E. montevidensis, with which it sometimes grows. (semanticfna.org)
- Eleocharis Montevidensis, commonly known as Hair Grass, is found Worldwide. (modernaquarium.com)
Schult1
- Eleocharis nodulosa Schult. (asu.edu)
Species10
- The vast majority of Eleocharis species grow in aquatic or mesic habitats from sea level to higher than 5,000 meters in elevation (in the tropical Andes). (wikipedia.org)
- all Eleocharis species have photosynthetic stems but no green leaves (the leaves have been reduced to sheaths surrounding the base of the stems). (wikipedia.org)
- In all Eleocharis species, the flowers are borne on unbranched terminal spikelets at the apices of stems. (wikipedia.org)
- citation needed] One of the best known species is the Chinese water chestnut, Eleocharis dulcis. (wikipedia.org)
- Although recognition of infraspecific taxa is premature, the following three intergrading variants are notable: Variant a (= Eleocharis xyridiformis) almost certainly deserves taxonomic recognition, perhaps as a species. (swbiodiversity.org)
- Eleocharis geniculata is listed as endangered under the Canadian Species at Risk Act, S.C. 2002 and the Ontario Endangered Species Act, S.O. 2007. (uwaterloo.ca)
- It is most similar to Eleocharis macrostachya and Eleocharis erythropoda , and all three were at one time considered a single species and are still identified as such in some references (including the national distribution map above). (minnesotawildflowers.info)
- In reality, it probably belongs to the species Eleocharis pusilla originating from Australia and New Zealand. (aquasabi.com)
- Eleocharis species are hard to discern, and without their spikes or rather infrutescence they are practically unidentifiable. (aquasabi.com)
- The supraspecific classification of Eleocharis used here is that of M. S. González-E. and P. M. Peterson (1997), which was based on a study of most species worldwide. (asu.edu)
Hairgrass1
- dwarf hairgrass Eleocharis acuta R.Br. (wikipedia.org)
Synonyms2
Geniculata1
- Eleocharis geniculata occurred only on bare sandy substrate with low organic content and nutrient levels and relatively high calcium. (uwaterloo.ca)
Plants1
- Home / Aquarium Plants / Tissue Culture Plants / Eleocharis sp. (aquariumplants.com)
Spikesedge1
- Canada spikesedge Eleocharis gracilis R.Br. (wikipedia.org)
Steud5
- Eleocharis afflata Steud. (wikipedia.org)
- Eleocharis erythropoda Steud. (wikipedia.org)
- Eleocharis engelmannii Steud. (maine.gov)
- Eleocharis marginulata Steud. (co.zw)
- Chaetocyperus membranaceus Buckley, Eleocharis leptos (Steud. (ngpherbaria.org)
Torr4
- Eleocharis equisetoides (Elliott) Torr. (wikipedia.org)
- UCJEPS: Jepson Interchange: Eleocharis equisetoides Torr. (berkeley.edu)
- Eleocharis arenicola Torr. (itis.gov)
- Eleocharis microcarpa Torr. (usf.edu)
Dulcis2
- Eleocharis congesta D.Don Eleocharis cylindrostachys Boeckler Eleocharis dietrichiana Boeckler Eleocharis dulcis (Burm.f. (wikipedia.org)
- Eleocharis dulcis (Burman f. (asu.edu)
Retz2
- Eleocharis atropurpurea (Retz. (wikipedia.org)
- 1789. Eleocharis plantaginea (Retz. (keralaplants.in)
Presl1
- Eleocharis variegata (Poiret) C. Presl var. (efloras.org)
Subg1
- Eleocharis subg. (asu.edu)
Obtusa1
- Eleocharis obtusa (Willd. (wikipedia.org)
Ochrostachys1
- 6. Eleocharis ochrostachys Steudel, Syn. (efloras.org)
Rottb1
- Eleocharis caribaea (Rottb. (herbariovaa.org)
Subsp1
- Eleocharis mamillata subsp. (florasilvaegabretae.eu)
Willd1
- Eleocharis sundaica J.Kern Eleocharis tenuis (Willd. (wikipedia.org)
Spikelets1
- To distinguish from Bulbostylis pay attention to the multiple spikelets emerging from one tiny set of roots, not the single stem found in Eleocharis emerging from a very tiny rhizome. (ngpherbaria.org)
Sect1
- Eleocharis sect. (semanticfna.org)
Variant1
- this is now regarded as an orthographic variant of Eleocharis. (asu.edu)