This defective dna molecule carried a deletion of approximately 46% of the fulllength. Identification and characterisation of a highly divergent geminivirus. Eragrostis curvula perennial south african grass having densely clumped flimsy stems. African lovegrass is not a prohibited or restricted invasive plant under the biosecurity act 2014.
Synonym iother names i eragrostis curvula streak virus isolate eragrostis curvula south africag3822008. The first roots produced by weeping lovegrass seedlings are large and. Targeting the tylcv ir region showed significant reduction of tylcv. African lovegrass eragrostis curvula poa tussock has purplish rather than black young seed heads, and tends to be more upright and less weeping. A highdensity linkage map of the forage grass eragrostis curvula and. Accordingly a bioinformatic program is helpful to select target sequences and. African lovegrass eragrostis curvula is an early coloniser of disturbed sites, and is typically found in sandy or gravely soils, on roadsides, along watercourses and in pastures. Weeping lovegrass produces an extensive thick mat of roots, which have made it useful for erosion control 3,58. There are about 500 species, distributed in the subtropics, the tropics, and temperate regions. Ecsv represents a new genuslevel geminivirus lineage, and has a mixture of features. This defective dna molecule carried a deletion of approximately 46% of the full length.
A highdensity linkage map of the forage grass eragrostis curvula. Flower removal, applied nitrogen, and partial nodule removal on nitrogen fixation and regrowth of phasey bean. Eragrostis curvula wikipedia, a enciclopedia livre. Threatened species programme sanbi red list of south. The term cress dna viruses was coined in 2012 to refer to a group of singlestranded dna ssdna viruses encoding a replicationassociated protein rep that appears to be descended from a common ancestor. Shoop and mcilvain report that vertical roots may reach 15 feet 4. The grey plots represent analogous scans between 20 geminivirus. Furthermore, all opv1 sg molecules except sg 2 and 3 have a deletion. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 412439 with original publication details. Inflorescence paniculate, open or contracted, or reduced to a raceme.
Eragrostis curvula streak virus isolate eragrostis curvula south africag3822008 taxonomy navigation eragrostis curvula streak virus. Beds and borders, city, containers, cottageinformal, foliage only, prairie planting. Eragrostis curvula seeds african love grass, weeping. Proteomes eragrostis curvula streak virus isolate eragrostis curvula south africag3822008 ecsv. Appearance eragrostis curvula is a warmseason, perennial grass that can grow to 4 ft. Plants profile for eragrostis curvula weeping lovegrass. Eragrostis curvula seeds african love grass, weeping love.
Eragrostis article about eragrostis by the free dictionary. The tufts may reach a diameter of 38 centimetres 1. Discovery of a new geminivirus in mulberry affected by mosaic dwarf disease. Eragrovirus is a genus of viruses, in the family geminiviridae. The atlas of florida plants provides a source of information for the distribution of plants within the state and taxonomic information. Identification and molecular characterization of a novel monopartite. Eragrostis curvula is a species of grass known by the common name weeping lovegrass. Eragrostis a genus of plants of the family gramineae. Related plants emelo ermelo morpa morpha totnes burgundy nursery. Number of protein entries associated with this proteome. Browse pictures and read growth cultivation information about eragrostis species, african lovegrass, weeping love grass eragrostis curvula supplied by member gardeners in the plantfiles databas. A superlative plant if given room to display its countless thin waving stems carrying masses of fine, almost smokelike, purplegrey seed heads. Virus diseases of trifolium species in temperate australia.
Seed deposition of eragrostis curvula, an invasive alien plant on a river floodplain article in ecological research 224. Among plants viruses, those of the family geminiviridae are responsible for a. Eragrostis grasses can either be hardy perennials or hardy annuals they reach a height of between 90 cm and 1. Eragrostis curvula african love grassrhs gardening. These viruses all apparently belong to a single divergent species of the family geminiviridae. African lovegrass eragrostis curvula is an invasive plant in queensland and is not a restricted or prohibited plant under queensland legislation. Eragrostis curvula streak virus isolate eragrostis curvulasouth. Discovery of a new highly divergent geminivirus species. Turnip curly top virus, a highly divergent geminivirus. Development of seinet, symbiota, and several of the specimen databases have been supported by national science foundation grants dbi 99832, brc 0237418, dbi 0743827, dbi 0847966 symbiota, and several of the specimen databases have been supported by national science foundation grants dbi. Ecol soc jpn ed 2002 handbook of alien species in japan.
Ecsv eragrostis curvula streak virus reported for the first time in this. Amongst the most divergent of these newly discovered geminiviruses is eragrostis curvula streak virus ecsv isolated from an uncultivated african grass species, eragrostis curvula varsani et al. Sv gel and pcr cleanup system promega following the manufacturers protocol. Eragrostis curvula introductory distribution and occurrence management considerations botanical and ecological characteristics fire ecology fire effects references introductory species. Seed deposition of eragrostis curvula, an invasive alien.
Description of a novel monopartite geminivirus and its defective. By contrast, the ch type, commences flowering in spring, and continues to produce large numbers of inflorescences throughout the summer, with a much higher percentage of fertile tillers than in the curvula type. Eragrostis curvula definition of eragrostis curvula by. Annuals or perennials, usually tufted but of various habit. Establishment of three new genera in the family geminiviridae. Genus eragrostis can be annual or perennial grasses with linear leaves and dense branched flowering panicles in summer and autumn details e. In its african home it is known as weeping love grass.
Except where otherwise noted, content on this site is licensed under a creative commons attribution cc by licence. Eragrostis parviflora tends to be a smaller plant with long, black to leadengrey coloured seed heads that are less spreading or more linear than those of african. The plants database includes the following 79 species of eragrostis. After removing the markers with missing data in the parental plants. Eragrostis plant growing guide love grass, candygrass. However, they can be successfully grown in the mediterranean environments due to a combination of drought tolerance and the mild winter conditions. Media in category eragrostis curvula the following 61 files are in this category, out of 61 total. We have characterised a new highly divergent geminivirus species, eragrostis curvula streak virus ecsv, found infecting a hardy perennial south african wild grass. Mosaic virus, beet curly top virus, eragrostis curvula streak virus, maize streak virus. The seeds appear to be of high nutritional value for some animals, but they are also very tiny and collecting them for human food is cumbersome and hence.
Eragrostis grasses can either be hardy perennials or hardy annuals. Eragrostis curvula synonyms, eragrostis curvula pronunciation, eragrostis curvula translation, english dictionary definition of eragrostis curvula. Sheaths have long hairs inside the upper margin and along the collar. The plants are annual or perennial grasses with flat, narrowly linear leaf blades. Provided by ars systematic botany and mycology laboratory. The name of the genus is derived from the greek words. H, ikegami m, boulton mi, davies jw 1991 the nucleotide sequence and genome structure of the geminivirus miscanthus streak virus.
The dorsal area is flattened with a very slight depression across the middle. Other common names include boer lovegrass, curved lovegrass, catalina lovegrass, and african lovegrass it is native to southern africa. However, by law, everyone has a general biosecurity obligation gbo to take reasonable and practical steps to minimise the risks associated with invasive plants and animals under their control. Wo2016185411a1 method of inhibiting plant virus pathogen. Eragrostis spectabilis, commonly called purple love grass, is a warm season bunchgrass that is native to sandy soils from maine to south dakota south to florida, texas, arizona and mexico. Eragrostis curvula definition of eragrostis curvula by the. Eragrostis curvula seeds african love grass, weeping love grass plant world seeds. Viruses free fulltext a novel divergent geminivirus identified in. It forms large clumps with abundant drooping leaves at the base. Curiously, this virus, which we have tentatively named eragrostis minor streak virus emsv, was discovered in namibia, southern africaalmost as far from japan as it is possible to get within. A highly divergent south african geminivirus species. This taxon was not selected in any one of four screening processes for highlighting potential taxa of conservation concern for detailed assessment and was hence given an automated status of. May 26, 2011 owor be, shepherd dn, taylor nj, edema r, monjane al, thomson ja, martin dp, varsani a 2007 successful application of fta classic card technology and use of bacteriophage phi29 dna polymerase for largescale field sampling and cloning of complete maize streak virus genomes. Leaves with ligule a rim of minute hairs or rarely membranous.
Subtropical warm season, c4 perennial grasses are traditionally grown in summer rainfall environments. African lovegrass ragrostis curvula summary african lovegrass eragrostis curvula is a morphologically variable perennial plant native to semiarid upland areas of subtropical southern and eastern africa. Nees is an accepted name this name is the accepted name of a species in the genus eragrostis family poaceae. Its main growing season is from mid spring to mid autumn. Roots often fill all the surface soil space between plants. In missouri, it is found throughout the state, most commonly in sandy, rocky or open ground and along roads, fencerows and railroads steyermark. Eragrostis curvula totnes burgundy love grass totnes burgundy will reach a height of 0. Eragrostis curvula streak virus isolate eragrostis. Eragrostis curvula was imported to this country in. Consol mature seed head shown right was developed in the 1980s by the soil conservation service of nsw for revegetating sites which were too harsh for other perennial grasses. If a curvula type is mowed following flowering in late spring, it produces few or no additional heads until late summer. Click below on a thumbnail map or name for species profiles. It can survive long dry periods, and recovers quickly after disturbance events e. As they come, however, entirely within the area indicated by the localities cited above, and as i am not certain as to the variety under which i should have to enumerate them, i preferred omitting them altogether.
Eragrostis species, african lovegrass, weeping love grass. Eragrostis curvula totnes burgundy love grass care plant. Eragrostis curvula weeping lovegrass eragrostis cylindriflora cylinderflower lovegrass eragrostis deflexa pacific lovegrass eragrostis dielsii. The website also provides access to a database and images of herbarium specimens found at the university of south florida and other herbaria.
It is variable in appearance, and there are many different natural and cultivated forms. Eragrostis curvula figure 2 is a perennial native to the old world hitchcock and chase 1971. Infestations of these plants have negative impacts on natural environments. A highly divergent south african geminivirus species illuminates the. The genus becurtovirus has two viral species, beet curly top iran virus 28. Eragrostis curvula is usually a longlived perennial grass, but it is sometimes an annual plant.1083 1022 1167 245 949 119 1290 50 867 1156 683 425 1037 1118 890 333 82 105 274 947 911 835 1000 268 143 152 26 1405 891 1182 610 874 1398 220 1244 140 280 1427 942 360 513