Distribution of wolffia arrhiza in the czech republic. Media in category wolffia arrhiza the following 9 files are in this category, out of 9 total. 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. The rediscovered species wolffia microscopica griff. 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. Its effects on the productive performance and egg quality of laying japanese quails. Wolffia arrhiza in world checklist of selected plant families. In vitro control of flowering in wolffia microscopica nature.
Wolffia arrhiza watermeal duckweed starter culture fair. The duckweeds lemnaceae are the smallest flowering plants in the world. The results presented by this study were in agreement with earlier reports on other plants, such as aquatic plant wolffia arrhiza piotrowska et al. Wolffia synonyms, wolffia pronunciation, wolffia translation, english dictionary definition of wolffia. Media in category wolffia arrhizathe following 9 files are in this category, out of 9 total. It is in leaf all year, in flower all year, and the seeds ripen all year. 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. Wayne armstrongs online description of wolffia arrhiza.
Duckweeds are tiny free floating vascular plants found throughout the world on fresh or sometimes brackish waters. 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. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. 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. It is native to europe, africa, and parts of asia, and it is present in other parts of the world as a naturalized species.
The species is hermaphrodite has both male and female organs. Wolffia arrhiza very small, lemna minor medium, spirodela polyrhiza large wolffia arrhiza small together with spirodela polyrhiza large illustrations edit. Oct 29, 2018 dietary wolffia arrhiza meal as a substitute for soybean meal. Frontiers development of wolffia arrhiza as a producer for. Wolffia is a genus of nine to 11 species which include the smallest flowering plants on earth. Plants profile for wolffia arrhiza spotless watermeal. 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.
This is the profile for the plant wolffia arrhiza rootless duckweed maltese name not known. Pdf alien species wolffia arrhiza and wolffietum arrhizae. Nitrate andnitrite reductionby wolffia arrhizal receivedforpublication august28, 1970 j. Wolffia arrhiza online atlas of the british and irish flora. Wolffia minute rootless aquatic herbs having globular fronds floating on or near the water surface and bearing one flower per frond genus wolffia.
The thai name khainam means water eggs and suggests the oval shape of the plant, 1. Pdf callus induction and regeneration in wolffia arrhiza. The flower is produced in a depression on the top surface of the plant body. 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. Closeup of different duckweeds on the surface of a pond. First discovery of flowering wolffia arrhiza in central.
Mature hgcsf has a length of 178 aa, it is stabilized by. Gas chromatographicmass spectrometric investigation of the. The board of trustees of the royal botanic gardens, kew. Wolffia is a worldwide genus of 11 species of tiny duckweeds. Nitrate reductase was not found to be present in or associated with partially purified, intact chloroplasts aqueously isolated from wolffia arrhiza.
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. Wolffia definition of wolffia by the free dictionary. 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. During vegetative propagation, the daughter fronds are produced by budding within a single pouch of the mother frond.
The alien wolffia columbiana, which has been frequently found in europe since its first discovery 20 schmitz et al. Wolffia article about wolffia by the free dictionary. Nutritional value of the duckweed species of the genus. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 214819 with original publication details. Wolffia arrhiza wikispecies wikispecies, free species. The ether and methanol extracts of wolffia arrhiza lemnaceae were analyzed using high resolution capillary gas chromatography coupled with mass spectrometry gcms. Such a commodity is the aquatic plant, wolffia arrhiza wimm. This is not quite as easy to get started as other plant cultures and i have really struggled in the past myself. Spirodela polyrhiza, lemna minor, and wolffia arrhiza.
Wolffias are the smallest flowering plants in the world, being less than 1 mm long fig. Horkel ex wimm article pdf available in plant cell tissue and organ culture 1201. Development of wolffia arrhiza as a producer for recombinant human granulocyte colonystimulating factor october 2018 in book. Genetic differentiation of wolffia globosa in china yuan. Wolffia, the minutest of them, is just about the size of a pinhead. 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. 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. Wolffia arrhiza spotless watermeal wolffia borealis northern watermeal wolffia brasiliensis brazilian watermeal wolffia columbiana columbian watermeal wolffia globosa asian watermeal. Taking the suggestion of one of the web sites below and exploring the gourmet potential of wolffia, we made this muffin using it. Wolffia species are free floating thalli, green or yellowgreen, and without roots. The transparent green species without dark green dorsal surface, w. The family name of this plant is araceae which comes under the order alismatales water plantains. Wolffia arrhiza watermeal duckweed starter culture 15ml plastic tube containing a small amount of live aquatic plants. 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.
The plant list includes 27 scientific plant names of species rank for the genus wolffia. Click below on a thumbnail map or name for species profiles. Spirodela polyrhiza large leaves, lemna minor medium, and wolffia arrhiza very small. The ether extract contains 32 compounds, mostly lipids and sterols, among which. Easy plant to grow once established, but can be really frustrating in the beginning and you may have no success. 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. Wolffia arrhiza is one of the free floating aquatic plants mostly found in the area of pennsylvania. The plant list includes a further 4 scientific plant names of infraspecific rank for the genus wolffia.
While nutrient loads from anthropogenic sources upset aquatic ecosystem balance, wolffia arrhiza duckweed has capacity to purge nutrientrich water if continuously harvested. It has approximately the same percentage of protein as soy beans. See group comparison photo with wolffia arrhiza 6, w. The plants database includes the following 5 species of wolffia. 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. 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. Curiously, flowering of this genus even in nature has. The frequency of flower formation differs for the various wolffia species landolt, 1986. It is widespread but easily overlooked because it is so tiny.
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. One or more of the features that are needed to show you the maps functionality are not available in. These smallest vascular plants will grow in the area of nutrientrich ponds with inert or little flow. Wolffia arrhiza least duckweed, spotless watermeal pfaf plant.