The plant list includes a further 4 scientific plant names of infraspecific rank for the genus wolffia. Distribution of wolffia arrhiza in the czech republic. The ether and methanol extracts of wolffia arrhiza lemnaceae were analyzed using high resolution capillary gas chromatography coupled with mass spectrometry gcms. Taking the suggestion of one of the web sites below and exploring the gourmet potential of wolffia, we made this muffin using it. Curiously, flowering of this genus even in nature has. This is the profile for the plant wolffia arrhiza rootless duckweed maltese name not known.
The frequency of flower formation differs for the various wolffia species landolt, 1986. Wolffia is a genus of nine to 11 species which include the smallest flowering plants on earth. Wolffias are the smallest flowering plants in the world, being less than 1 mm long fig. Their morphology is extremely simple as they have no stems or true leaves, and usually consist of a single or a few flat, ovalshaped and small fronds. Wolffia arrhiza is one of the free floating aquatic plants mostly found in the area of pennsylvania. Plants profile for wolffia arrhiza spotless watermeal. Duckweeds are tiny free floating vascular plants found throughout the world on fresh or sometimes brackish waters. Spirodela polyrhiza, lemna minor, and wolffia arrhiza. Wolffia arrhiza online atlas of the british and irish flora. Stocking botanydepartment, university ofcalifornia, davis, california 95616 abstract nitrate reductase was not found to be present in or associated with partially purified, intact chloroplasts aqueously isolated from wolifia arrhiza. The rediscovered species wolffia microscopica griff. Nitrate reductase was not found to be present in or associated with partially purified, intact chloroplasts aqueously isolated from wolffia arrhiza.
The nutrients accumulated in biomass have potential as soil fertility amendments. Media in category wolffia arrhizathe following 9 files are in this category, out of 9 total. The alien wolffia columbiana, which has been frequently found in europe since its first discovery 20 schmitz et al. Wayne armstrongs online description of wolffia arrhiza.
The objective of this study was to determine changes in release of nitrogen n and phosphorus p, and the fate of p in soils after. These smallest vascular plants will grow in the area of nutrientrich ponds with inert or little flow. Wolffia, the minutest of them, is just about the size of a pinhead. Kurz, endemic to india, pakistan and bangladesh, shows several features that make it unique in comparison to other duckweeds, even to other species of the genus wolffia. Wolffia arrhiza spotless watermeal wolffia borealis northern watermeal wolffia brasiliensis brazilian watermeal wolffia columbiana columbian watermeal wolffia globosa asian watermeal. Closeup of different duckweeds on the surface of a pond. It is in leaf all year, in flower all year, and the seeds ripen all year.
This is not quite as easy to get started as other plant cultures and i have really struggled in the past myself. Wolffia species are free floating thalli, green or yellowgreen, and without roots. Pdf on jan 1, 2011, arunas balsevicius and others published alien species wolffia arrhiza and wolffietum arrhizae communities in lithuania find, read and cite all the research you need on. Wolffia article about wolffia by the free dictionary. Wolffia seems not to be considered invasive and might actually have economic value. The species is hermaphrodite has both male and female organs. Wolffia arrhiza watermeal duckweed starter culture fair. Wolffia arrhiza in world checklist of selected plant families. In addition to be an important food source to waterfowl, all species of duckweed lemnaceae can be easily transported by water birds and thus are readily distributed at least locally. Aug 10, 2018 while nutrient loads from anthropogenic sources upset aquatic ecosystem balance, wolffia arrhiza duckweed has capacity to purge nutrientrich water if continuously harvested. Genetic differentiation of wolffia globosa in china yuan. The thai name khainam means water eggs and suggests the oval shape of the plant, 1. Such chloroplasts are capable of using nitrite but not nitrate as an electron acceptor during lightstimulated electron transport in the absence of additional cytoplasmic components.
Such a commodity is the aquatic plant, wolffia arrhiza wimm. See group comparison photo with wolffia arrhiza 6, w. The aquatic plant wolffia arrhiza lemnaceae is eaten by the poorer people in burma, laos and north thailand and grows in india also, though it has not been reported as a food in india. Wolffia arrhiza as a possible source of inexpensive protein. The plants database includes the following 5 species of wolffia. Its effects on the productive performance and egg quality of laying japanese quails. The aim of this study is to explore the feasibility of recombinant proteins expression in nucleartransformed wolffia arrhiza plants by the example of human granulocyte colonystimulating factor hgcsf. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 214819 with original publication details. Dietary wolffia arrhiza meal as a substitute for soybean meal. Wolffia arrhiza very small, lemna minor medium, spirodela polyrhiza large wolffia arrhiza small together with spirodela polyrhiza large illustrations edit. It is widespread but easily overlooked because it is so tiny. Wolffia minute rootless aquatic herbs having globular fronds floating on or near the water surface and bearing one flower per frond genus wolffia. While nutrient loads from anthropogenic sources upset aquatic ecosystem balance, wolffia arrhiza duckweed has capacity to purge nutrientrich water if continuously harvested. Oct 29, 2018 dietary wolffia arrhiza meal as a substitute for soybean meal.
The ether extract contains 32 compounds, mostly lipids and sterols, among which. Nutritional value of the duckweed species of the genus. Wolffia arrhiza wikispecies wikispecies, free species. Wolffia is a worldwide genus of 11 species of tiny duckweeds. Click below on a thumbnail map or name for species profiles. It is native to europe, africa, and parts of asia, and it is present in other parts of the world as a naturalized species. Wolffia arrhiza least duckweed, spotless watermeal pfaf plant. Horkel ex wimm article pdf available in plant cell tissue and organ culture 1201. Wolffia arrhiza watermeal duckweed starter culture 15ml plastic tube containing a small amount of live aquatic plants. Wolffia arrhiza is a species of flowering plant known by the common names spotless watermeal and rootless duckweed, belonging to the araceae, a family rich in waterloving species, such as arum and pistia. Wolffia definition is a genus of widely distributed floating aquatic plants family lemnaceae that are the smallest flowering plants known, consist merely of a minute ovoid or globose leafless thallus producing the flowers from clefts or grooves, and are distinguished from members of the genus lemna by the onecelled anthers and by the absence of roots. The family name of this plant is araceae which comes under the order alismatales water plantains. Fronds free floating on or beneath water surface, 1 or 2 coherent together, green on upper surface, green to transparent on lower surface, never reddish, symmetric, globose, ovoid, or boatshaped, with 1 basal cavity reproducing daughter fronds, cavity not surrounded by a scale at base. Each plant profile in the database contains nomenclature info, botanical data, plant description, large, highresolution pictures, images and photos of the plants and its parts, detailed information such as uses, history, habitat, and medicinal.
Callus induction and regeneration in wolffia arrhiza l. The board of trustees of the royal botanic gardens, kew. Easy plant to grow once established, but can be really frustrating in the beginning and you may have no success. Pdf callus induction and regeneration in wolffia arrhiza.
It has approximately the same percentage of protein as soy beans. The flower is produced in a depression on the top surface of the plant body. Mature hgcsf has a length of 178 aa, it is stabilized by. Pdf alien species wolffia arrhiza and wolffietum arrhizae. In vitro control of flowering in wolffia microscopica nature. Spirodela polyrhiza large leaves, lemna minor medium, and wolffia arrhiza very small. Wolffia definition of wolffia by the free dictionary. Frontiers development of wolffia arrhiza as a producer for. Jul 25, 2018 the aim of this study is to explore the feasibility of recombinant proteins expression in nucleartransformed wolffia arrhiza plants by the example of human granulocyte colonystimulating factor hgcsf. Wolffia synonyms, wolffia pronunciation, wolffia translation, english dictionary definition of wolffia. One or more of the features that are needed to show you the maps functionality are not available in. Nitrate andnitrite reductionby wolffia arrhizal receivedforpublication august28, 1970 j. The plant list includes 27 scientific plant names of species rank for the genus wolffia.
Gas chromatographicmass spectrometric investigation of the. The results presented by this study were in agreement with earlier reports on other plants, such as aquatic plant wolffia arrhiza piotrowska et al. During vegetative propagation, the daughter fronds are produced by budding within a single pouch of the mother frond. The duckweeds lemnaceae are the smallest flowering plants in the world. Media in category wolffia arrhiza the following 9 files are in this category, out of 9 total. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. First discovery of flowering wolffia arrhiza in central. Based on morphological characters and chloroplast matk sequences, huang 2007 found two matk haplotypes of the chinese wolffia species, one identical to the published sequence of w. The transparent green species without dark green dorsal surface, w.
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