A plant family of the order Typhales, subclass Commelinidae, class Liliopsida (monocotyledons) that contains a single genus, Typha, that grows worldwide.

Epifluorescent and histochemical aspects of shoot anatomy of Typha latifolia L., Typha angustifolia L. and Typha glauca Godr. (1/18)

Using epifluorescent and histochemical techniques, we examined anatomical differences in the shoot organs of Typha latifolia, T. angustifolia and T. glauca. The leaf lamina of T. latifolia and T. glauca had enlarged epidermal cells and a thickened cuticle above the subepidermal vascular bundles; that of T. angustifolia lacked these characteristics. Leaf sheaths were similar among the species and all lacked the epidermal thickenings found in the lamina. The fertile stems had typical scattered vascular bundles with a band of fibres that was most prominent in T. glauca. The sterile stems were only 1 cm in length and contained a multiseriate hypodermis and a uniseriate endodermis over part of their length. The rhizomes were similar except for a pronounced band of fibres surrounding the central core in T. angustifolia. The rhizome was also characterized by an outer cortical region with a large multiseriate hypodermis/exodermis and a uniseriate endodermis with Casparian bands, suberin lamellae and secondarily thickened walls.  (+info)

Mortality of pollen grains may result from errors of meiosis: study of pollen tetrads in Typha latifolia L. (2/18)

In the cattail Typha latifolia the four haploid products of meiosis remain attached and form the flat tetrad of pollen grains. Gametophytic lethals arisen de novo in diploid cells of sporophyte must manifest themselves as pollen tetrads with two dead grains. This could allow to estimate the rate of recessive lethals arresting pollen grain development. We studied pollen samples collected from 44 sprouts in two populations in the vicinity of Novosibirsk. The anomalous tetrads T1, T2, T3, and T4 carrying one, two, three, and four dead grains, respectively, were detected in each sampled individual. The mean frequency of all anomalous tetrads in the two populations was 3.4% and 8.7%. The frequencies of tetrad classes varied widely among the individuals with correlation coefficient up to 0.94, but their ratios remained nearly constant. The majority of anomalous tetrads were presented by T1 and T2 classes (their sum comprising 72.7 and 74.0% in two populations), T1 being a little more abundant. The observed pattern of frequencies of tetrads with dead grains can be explained by errors of male meiosis such as chromosome non-disjunction in both meiotic divisions. The tetrads with two dead pollen grains may result mostly from non-disjunction in anaphase I, and those with one pollen grain from non-disjunction in anaphase II, thus making tetrad analysis ineffective for estimating the rate of gametophytic lethals.  (+info)

Root-zone acidity and nitrogen source affects Typha latifolia L. growth and uptake kinetics of ammonium and nitrate. (3/18)

The NH(4)(+) and NO(3)(-) uptake kinetics by Typha latifolia L. were studied after prolonged hydroponics growth at constant pH 3.5, 5.0, 6.5 or 7.0 and with NH(4)(+) or NO(3)(-) as the sole N-source. In addition, the effects of pH and N source on H(+) extrusion and adenine nucleotide content were examined. Typha latifolia was able to grow with both N sources at near neutral pH levels, but the plants had higher relative growth rates, higher tissue concentrations of the major nutrients, higher contents of adenine nucleotides, and higher affinity for uptake of inorganic nitrogen when grown on NH(4)(+). Growth almost completely stopped at pH 3.5, irrespective of N source, probably as a consequence of pH effects on plasma membrane integrity and H(+) influx into the root cells. Tissue concentrations of the major nutrients and adenine nucleotides were severely reduced at low pH, and the uptake capacity for inorganic nitrogen was low, and more so for NO(3)(-)-fed than for NH(4)(+)-fed plants. The maximum uptake rate, V(max), was highest for NH(4)(+) at pH 6.5 (30.9 micro mol h(-1) g(-1) root dry weight) and for NO(3)(-) at pH 5.0 (31.7 micro mol h(-1) g(-1) root dry weight), and less than 10% of these values at pH 3.5. The affinity for uptake as estimated by the half saturation constant, K((1/2)), was lowest at low pH for NH(4)(+) and at high pH for NO(3)(-). The changes in V(max) and K((1/2)) were thus consistent with the theory of increasing competition between cations and H(+) at low pH and between anions and OH(-) at high pH. C(min) was independent of pH, but slightly higher for NO(3)(-) than for NH(4)(+) (C(min)(NH(4)(+)) approximately 0.8 mmol m(-3); C(min)(NO(3)(-)) approximately 2.8 mmol m(-3)). The growth inhibition at low pH was probably due to a reduced nutrient uptake and a consequential limitation of growth by nutrient stress. Typha latifolia seems to be well adapted to growth in wetland soils where NH(4)(+) is the prevailing nitrogen compound, but very low pH levels around the roots are very stressful for the plant. The common occurrence of T. latifolia in very acidic areas is probably only possible because of the plant's ability to modify pH-conditions in the rhizosphere.  (+info)

The use of indices for evaluating the periphytic community in two kinds of substrate in Imboassica Lagoon, Rio de Janeiro, Brazil. (4/18)

Biological indices based on the biomass (dry weight, ash content, and chlorophyll-a) of the periphyton in a natural (submersed leaves of Typha domingensis Pers) and in an artificial (plastic hoses) substrate were compared, in experiments performed in summer and winter, in two sampling stations of Imboassica Lagoon, Macae, Rio de Janeiro. The periphytic community exhibited low biomass at the beginning and end of the experiments, and moderate biomass in the intermediate period of the experiment, whatever the kind of substrate, sampling station, and season. In both seasons, there was a spatial variation regarding the degree of trophy of the periphyton, due to the difference of nutrient availability among the sampling stations. The alternation of inorganic and organic periphyton, as well as of their heterotrophic, heteroautotrophic, auto-heterotrophic and, autotrophic character was due to changes in the abiotic factors of the sampling periods. The Lakatos index proved more sensitive than the Autotrophic Index to variations in the composition of the periphytic community.  (+info)

Temperature dependency of molecular mobility in preserved seeds. (5/18)

Although cryogenic storage is presumed to provide nearly infinite longevity to cells, the actual timescale for changes in viability has not been addressed theoretically or empirically. Molecular mobility within preserved biological materials provides a first approximation of the rate of deteriorative reactions that ultimately affect shelf-life. Here, temperature effects on molecular mobility in partially dried seeds are calculated from heat capacities, measured using differential scanning calorimetry, and models for relaxation of glasses based on configurational entropy. Based on these analyses, glassy behavior in seeds containing 0.07 g H(2)O/g dm followed strict Vogel-Tamman-Fulcher (VTF) behavior at temperatures above and just below the glass transition temperature (Tg) at 28 degrees C. Temperature dependency of relaxation times followed Arrhenius kinetics as temperatures decreased well below Tg. The transition from VTF to Arrhenius kinetics occurred between approximately 5 and -10 degrees C. Overall, relaxation times calculated for seeds containing 0.07 g H(2)O/g dm decreased by approximately eight orders of magnitude when seeds were cooled from 60 to -60 degrees C, comparable to the magnitude of change in aging kinetics reported for seeds and pollen stored at a similar temperature range. The Kauzmann temperature (T(K)), often considered the point at which molecular mobility of glasses is practically nil, was calculated as -42 degrees C. Calculated relaxation times, temperature coefficients lower than expected from VTF kinetics, and T(K) that is 70 degrees C below Tg suggest there is molecular mobility, albeit limited, at cryogenic temperatures.  (+info)

Latitudinal characteristics of below- and above-ground biomass of Typha: a modelling approach. (6/18)

BACKGROUND AND AIMS: The latitudinal differences in the growth characteristics of Typha are largely unknown, although a number of studies have pointed out the effects of climate on the growth and productivity of Typha. Therefore, a dynamic growth model was developed for Typha to examine the effects of latitudinal changes in temperature and radiation on partitioning of the total biomass during the growing season into rhizomes, roots, flowering and vegetative shoots, and inflorescences. METHODS: After validating the model with data from growth studies of Typha found in past literature, it was used to investigate the dynamics of above- and below-ground biomasses at three latitudes: 30 degrees, 40 degrees and 50 degrees. KEY RESULTS: Regardless of the initial rhizome biomass, both above- and below-ground biomass values converged to a latitude-specific equilibrium produced by the balance between the total production and respiration and mortality losses. Above-ground biomass was high from 10 degrees to 35 degrees latitude with sufficient radiation, despite high metabolic losses; however, it decreased markedly at higher latitudes due to a low photosynthetic rate. Below-ground biomass, on the other hand, increased with latitude up to 40 degrees due to decreasing metabolic losses, and then markedly decreased at higher latitudes. Above-ground biomass was enhanced with an increasing number of cohorts regardless of latitude. However, although more cohorts resulted in a larger below-ground biomass at low latitudes, the largest below-ground biomass was provided by a smaller number of cohorts at high latitudes. This difference is due to low production rates of late-season cohorts in high latitudes, compared with consumption for shooting and establishing foliage. CONCLUSIONS: The model could be used to predict the potential growth of Typha in given conditions over a wide range of latitudes and is useful for practical applications such as wetland management or wastewater treatment systems using Typha.  (+info)

Application of the [3H]leucine incorporation technique for quantification of bacterial secondary production associated with decaying wetland plant litter. (7/18)

The radiolabeled leucine incorporation technique for quantifying rates of bacterial production has increased in popularity since its original description for bacterioplankton communities. Prior studies addressing incorporation conditions (e.g., substrate saturation) for bacterial communities in other habitats, such as decaying plant litter, have reported a wide range of final leucine concentrations (400 nM to 50 microM) required to achieve saturation-level uptake. We assessed the application of the [(3)H]leucine incorporation procedure for measuring bacterial production on decaying wetland plant litter. Substrate saturation experiments (nine concentrations, 10 nM to 50 microM final leucine concentration) were conducted on three dates for microbial communities colonizing the submerged litter of three emergent plant species (Typha angustifolia, Schoenoplectus validus, and Phragmites australis). A modified [(3)H]leucine protocol was developed by coupling previously described incubation and alkaline extraction protocols with microdialysis (500 molecular weight cutoff membrane) of the final radiolabeled protein extract. The incorporation of [(3)H]leucine into protein exhibited a biphasic saturation curve, with lower apparent K(m) values ranging from 400 nM to 4.2 microM depending on the plant species studied. Upper apparent K(m) values ranged from 1.3 to 59 microM. These results suggest differential uptake by litter-associated microbial assemblages, with the lower apparent K(m) values possibly representing bacterial uptake and higher apparent K(m) values representing a combination of both bacterial and nonbacterial (e.g., eukaryotic) uptake.  (+info)

Sewage input effects on the macroinvertebrate community associated to Typha domingensis Pers in a coastal lagoon in southeastern Brazil. (8/18)

This study was carried out at Imboassica Lagoon, located in an urban zone in the municipality of Macae, Rio de Janeiro state, Brazil. This lagoon has been subject to anthropogenic impacts due to the increasing city population, such as the input of sewage. Areas of variable degree of anthropogenic influence in the lagoon were compared regarding the structure of the macroinvertebrate community associated to Typha domingensis leaves. For sampling, we used 35 x 20 cm net plastic bags, with 6.8 mm mesh containing T. domingensis leaves for colonization. Two different sampling stations were selected: station A, under direct input of sewage; and station B with lesser sewage influence. The bags were removed after 20, 40 and 75 days of colonization. For each sample the Shannon-Wiever Diversity, Pielou Evenness, Jaccard Similarity Indices, Correspondence Analysis and taxonomic richness were calculated. A total of 31,874 individuals were sampled, belonging to 34 taxa. The main taxonomical groups were: Oligochaeta (41%), Chironomidae (40%), Ancylidae (4.6%), Polymitarcyidae (4%) and Thiaridae (3%). At station A, the taxonomic richness, the Evenness and Diversity values were lower than in station B. On the other hand, the total density was three times higher in station A than in B. It was already possible to discriminate the community structure of each sampling station in the first sampling. Trichoptera and Ephemeroptera were the main exclusive groups of station B and are considered good water quality indicators due to their high sensibility to contamination. The major contribution to discriminate between the macroinvertebrate communities of the two sample stations came from Chironomidae, Oligochaeta and Ephemeroptera.  (+info)

I'm sorry for any confusion, but "Typhaceae" is not a medical term. It is a taxonomic category in botany, specifically the name of a family of flowering plants that includes cattails and bulrushes. In modern classification systems, Typhaceae is often included within the broader family Typhaeaceae or combined with Sparganiaceae into the order Typhales.

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The Typhaceae (/taɪˈfeɪsii/) are a family of flowering plants, sometimes called the cattail family. The botanical name for the ... "Flowers - Cattail Family, Typhaceae - NatureGate". www.luontoportti.com. Phillips, Edwin Percy (1951). The genera of South ... doi:10.11646/phytotaxa.261.3.1. Media related to Typhaceae at Wikimedia Commons links at CSDL (Articles with short description ... Stevens, P. F. "ANGIOSPERM PHYLOGENY WEBSITE, version 12". Typhaceae. Missouri Botanical Garden. Retrieved 9 July 2013. " ...
Typhaceae). Tropical Journal of Pharmaceutical Research 13(1): 67-72. Chai TT, Chiam MJ, Lau CH, Mohd Ismail NI, Ong HC, Abd ... Typhaceae) fruit. Tropical Journal of Pharmaceutical Research 14 (11): 1983-1990. Common weed revealed to diminish water ...
Typhaceae u. Sparganiaceae, 1900 - Typhaceae and Sparganiaceae. Lehrbuch der ökologischen pflanzengeographie, 1902 (German ...
IPNI, Typhaceae, Type Name. Christenhusz, Fay & Chase 2017, pp. 193-194. POWO, Typhaceae. POWO, Typhaceae, Neotropikey. ...
Typhaceae Juss. (including Sparganiaceae Hanin) Xyridaceae C.Agardh Zingiberales Griseb. Cannaceae Juss. Costaceae Nakai ...
Bulrush family - Typhaceae. Typha latifolia. Types of rush that prefer water logged ground: Rush family - Juncaceae Juncus ...
Typhaceae Typha sp. Sequoia, giant redwood forests were common at higher altitudes of Anatolia in the Tertiary and early ...
Typhaceae family 2. Sparganiaceae superorder 6. Juncanae order 1. Juncales family 1. Juncaceae family 2. Thurniaceae order 2. ...
Poales Small Typhaceae Juss., nom. cons. Bromeliaceae Juss., nom. cons. Rapateaceae Dumort., nom. cons. Xyridaceae C.Agardh, ...
Typhaceae). Amongst these objects were found a whole roll of clematis, a plant fibre with no manufacture, fragments of basketry ...
fremontii (Geraniaceae) Typha minima (Typhaceae) AA.VV. (2003). G.L.A.O., (Gruppo ligure amatori orchidee) (ed.). Un giardino ...
... (Typhaceae), new for Poland. Polish Botanical Journal 56(2): 299-305. (Articles with short description, ...
and Ceiba pentandra (Malvaceae), as well as flowers of Pandanus sp., and in the cattails of Typha domingensis (Typhaceae). ...
endemic Family: Typhaceae, Genus Typha: Typha capensis (Rohrb.) N.E.Br. indigenous Family: Xyridaceae, Genus Xyris: Xyris ...
Alexander B. Doweld (2017). "New names of Typha of Northern Eurasia (Typhaceae)". Acta Palaeobotanica. 57 (2): 233-236. doi: ...
See [1] Larvae are mainly phytophages of Poaceae, Cyperaceae, and Typhaceae; they develop inside the vegetative or reproductive ...
These include the sedges (Cyperaceae), rushes (Juncaceae), restios (Restionaceae), and cat-tails (Typhaceae). All are ...
... is a species of flowering plant belonging to the family Typhaceae. Its native range is Norway to Japan. " ...
These include the sedges (Cyperaceae), rushes (Juncaceae), restios (Restionaceae), and cat-tails (Typhaceae). All are ...
Typhaceae). Much of the area of the Soldiers Delight NEA, which totals 1,900 acres (7.7 km2) of protected land, contains a ...
Ito & Cota-Sanchez (2014) Distribution and conservation status of Sparganium (Typhaceae) in the Canadian Prairie Provinces. ...
Retrieved 2011-02-20 "Typha latifolia (Typhaceae) Species description or overview", Hawaiian Ecosystems at Risk project (HEAR ...
... /ˈtaɪfə/ is a genus of about 30 species of monocotyledonous flowering plants in the family Typhaceae. These plants have a ...
Broader usages sometimes also include grass-like or graminoid species from the families Cyperaceae, Juncaceae, and Typhaceae. ...
Grøntved, J. (1954) Typhaceernes og Sparganiaceernes udbredelse i Danmark [The distribution in Denmark of Typhaceae and ...
... is closely related to the Typhaceae and the APG III system (2009) includes Sparganium in that family. It has been ... Tanaka, C.-K. Kim, R. Kaul, D. C. Albach (2015) Phylogeny of Sparganium (Typhaceae) revisited: Non-monophyletic nature of S. ...
Typhaceae, and most notably Poaceae. These modes evolved to facilitate transfer of the pollen grain onto the stigma. Most ...
Typhaceae. Volume 9(3) (2008) - Fagaceae. Volume 9(4) (2008) - Cucurbitaceae. Volume 10(1) (2009) - Dioscoreaceae. Volume 10(2 ...
... is a perennial herbaceous plant belonging to the Typhaceae family. The biological form of Typha minima is hemicryptophyte ...
The order consisted of (1981): order Typhales family Sparganiaceae family Typhaceae The APG IV system, used here, assigns the ...
The Typhaceae (/taɪˈfeɪsii/) are a family of flowering plants, sometimes called the cattail family. The botanical name for the ... "Flowers - Cattail Family, Typhaceae - NatureGate". www.luontoportti.com. Phillips, Edwin Percy (1951). The genera of South ... doi:10.11646/phytotaxa.261.3.1. Media related to Typhaceae at Wikimedia Commons links at CSDL (Articles with short description ... Stevens, P. F. "ANGIOSPERM PHYLOGENY WEBSITE, version 12". Typhaceae. Missouri Botanical Garden. Retrieved 9 July 2013. " ...
Wikipedia: Typhaceae. Plants of the World Online: Typhaceae. Tropicos: Typhaceae. Home. ,. List of families. ,. Typhaceae. ... Flora of Botswana: Typhaceae. Flora of Caprivi: Typhaceae. Flora of Caprivi: cultivated Typhaceae. Flora of Malawi: Typhaceae. ... iNaturalist: Typhaceae. IPNI (International Plant Names Index): Typhaceae. JSTOR Plant Science: Typhaceae. Mansfeld World ... Typhaceae. Spermatophyta: Monocotyledonae: Poales Typhaceae - Bulrush family. Anderson, J.G. (1966) Typhaceae Flora of Southern ...
Blatt Bluete Bur-reed family flower Frucht fruit leaf Rohrkolbengewaechse Same seed Sparganium Typhaceae ... Home / Typhaceae 29. Diese Webseite verwendet Cookies, um die Bedienfreundlichkeit zu erhöhen. Weitere Informationenen finden ...
Typhaceae • Genus: Sparganium • Species: Sparganium natans L., Sp. Pl.: 971 (1753) ...
Typhaceae). Copulation occurred throughout the 24-h cycle but mostly occurred in the photophase with two peaks, one at the ...
Typhaceae USDA hardiness Coming soon Known Hazards None known Habitats Not known ...
Typhaceae USDA hardiness 3-10 Known Hazards None known Habitats Shallow water up to 15cm deep in ponds, lakes, ditches, slow- ...
Typhaceae Juss. (Sparganiaceae Haninyi içine alır.). *Xyridaceae C.Agardh. *Zingiberales Takımı Griseb. *Cannaceae Juss. ...
Typhaceae. The Bulrush Tribe.. SOLD. ADD TO CART * Artist: Elizabeth Twining. Vitaceae. The Vine Tribe.. SOLD. ADD TO CART ...
En la década de los años setenta se inicia la colección de plantas que actualmente constituye el Herbario "Jaime Andrés Rodríguez" -LEB- de la Universidad de León. Se ha dedicado expresamente a la memoria de quien impulsó su creación y fue el primer profesor de Botánica de esta institución. El Herbario de la Universidad de León alberga, en la actualidad, además de la colección de Brasil, aproximadamente, 110.000 pliegos de plantas, 9.000 muestras de líquenes, 4.300 de hongos y 25 ejemplares tipo de diatomeas ...
177: Typhaceae, by Saod Omer and Rizwan Y. Hashmi. 1987. 2 pls. 8. gr8vo. Paper bd. ...
Typhaceae. Cat Tail Family. 546. Typha domingensis. southern cattail. 1. Go to: *Flora of the Santa Rosa Mountains From ...
The sampling of Macrophytes was performed through the application of the sampling and analysis protocol for Macrophytes (INAG 2008) developed to assess the biological quality of rivers within the scope of the Water Framework Directive (WFD) application. Inventories were carried out at the selected locations in the shortest possible time, to increase the comparability of the results. The field inventory was based on the percentage coverage of each species in relation to the total area sampled (limited by the river corridor, defined by the limit of ordinary floods). The work was carried out along the watercourse, including submerged and emerged beds and embankments. The allocation of the surface cover of each species was determined by imagining the individuals of each taxon grouped in the same area, at one end of the sampling section, in order to facilitate the estimation of the percentage area. More specifically, the vegetation was inventoried in discrete 100 m longitudinal units. Taxa of unknown ...
8 (Butomaceae to Typhaceae). 632 pp., Edinburgh University Press, Edinburgh, ISBN 0-85224-494-0. Reference page. ...
Home ,, Checklist: Old Fort Lewis Property - Hesperus, La Plata Co, CO ,, Previous version of Key ,, Identification Key (new version): Old Fort Lewis Property - Hesperus, La Plata Co, CO ...
TYPHACEAE Typha latifolia L. LILIACEAE Maianthemum trifolium (L.) Sloboda [Smilacina trifolia (L.) Desf.] Tofieldia glutinosa ( ...
Home ,, Checklist: San Rafael State Park ,, Previous version of Key ,, Identification Key (new version): San Rafael State Park ...
Typhaceae. NT. Fiche…. Utricularia minor L., 1753. Lentibulariaceae. NT. Fiche…. Vaccaria hispanica (Mill.) Rauschert, 1965. ...
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The Bulrush family, Typhaceae. Sparganium angustifolium to Typha latifolia. to The Buttercup family, Ranunculaceae. Aconitum ...
Sparganium emersum × Sparganium erectum is a species of in the family Typhaceae. ...
Typhaceae. Collection Number. not collected. Collectors. Identified By. Source. C. Davidson. Date. 03 October 2003. ...
our species feed on the seeds of cattails (Typha, Typhaceae)(3). Works Cited ...
Related to grasses, they are in the Typhaceae family and belong to the genus Typha. They usually grow to between three and 10 ...
Family: Typhaceae. Gender: Typha Species: broadleaf. Watch. Family: Ericaceae. Gender: Arctostaphylos Species: pungens. Watch ...
Family: Typhaceae. Family (APG): Typhaceae. Native American Tribe: Paiute, Northern. Use category: Food. Use sub-category: ... Typhaceae Typha domingensis Pers.. Southern Cattail. Paiute, Northern - Food, Bread & Cake. Use documented by:. Fowler, ...
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2: Dicotyledoneae (Diapensiacea to Asteraceae) to Monocotyledoneae (Typhaceae to Orchidaceae). Beijing: Science Press. ...
  • Related to grasses, they are in the Typhaceae family and belong to the genus Typha. (pocahontastimes.com)
  • Sparganium emersum × Sparganium erectum is a species of in the family Typhaceae . (eol.org)
  • The Typhaceae (/taɪˈfeɪsii/) are a family of flowering plants, sometimes called the cattail family. (wikipedia.org)
  • 1994. Vascular Plants of the Hengduan Mountains , Vol. 2: Dicotyledoneae (Diapensiacea to Asteraceae) to Monocotyledoneae (Typhaceae to Orchidaceae). (cepf.net)
  • Antioxidant, iron-chelating and anti-glucosidase activities of Typha domingensis Pers (Typhaceae). (istanbul.edu.tr)
  • The Typhaceae (/taɪˈfeɪsii/) are a family of flowering plants, sometimes called the cattail family. (wikipedia.org)
  • The two introduced and naturalised families are Mayacaceae, which is native to tropical and subtropical America and Angola, and Typhaceae, which is a largely temperate family. (nhbs.com)