Melanaphis sacchari is also an important pest of sugarcane throughout the world, including louisiana, florida, and texas as a vector of sugarcane yellow leaf. Yellow leaf yl of sugarcane caused by sugarcane yellow leaf virus scylv, a polerovirus of the luteoviridae family is a serious disease affecting the crop production and productivity in india. Internode lengths and fresh weights of symptomatic plants were reduced, but not the sucrose concentrations. With the new scylv nucleotide sequence and existing luteoviridae sequence information, we have utilized new phylogenetic and. Symptoms initially, a single white or cream line parallel to the midrib occurs, which can be seen from either side of the blade. Sereh disease, presumed to be caused by a virus, forced a complete change in field practices, including the adoption of an expensive system of growing seed cane in elevated areas and the abandonment of ratoons. Lehrer and others published erratum to impact of sugarcane yellow leaf virus scylv on the carbohydrate status of sugarcane. Transgenic approach to improve the resistance of sugarcane. Prospecting sugarcane resistance to sugarcane yellow leaf.
Sugarcane mosaic virus scmv is a plant pathogenic virus of the family potyviridae. Quantification of sugarcane yellow leaf virus in sugarcane. The two rust diseases arecaused by fungi thatcan be controlledby the use of fungicides. Eradicating sugarcane yellow leaf virus in sugarcane variety n32 through tissue culture l pillay, s d berry and r s rutherford south african sugar association experiment station, pbag x02, mount edgecombe, 4300, south africa abstract yellow leaf syndrome of sugarcane is caused by sugarcane yellow leaf virus scylv andor. Sugarcane yellow leaf virus scylv, the causal agent of yellow leaf disease, naturally infects at least three plant species in florida. Agronomic performance and genetic characterization of. Influence of apical meristem and chemotherapy on production of virus free sugarcane plants neelamathi d. Impact of sugarcane yellow leaf virus scylv on growth and sugar.
Sugarcane variety n32 through tissue culture l pillay, s d berry and r s rutherford south african sugar association experiment station, pbag x02, mount edgecombe, 4300, south africa abstract yellow leaf syndrome of sugarcane is caused by sugarcane yellow leaf virus scylv andor sugarcane yellows phytoplasma scyp. Transgenic approach to improve the resistance of sugarcane to. This disease is caused by sugarcane yellow leaf virus. As in commercial fields, visual symptoms of sugarcane yellow leaf disease caused by scylv. Yellow leaf disease caused by sugarcane yellow leaf virus scylv is an important disease for sugarcane industries worldwide. Detection of sugarcane yellow leaf virus scylv causing yellow. Brassica yellows virus movement protein upregulates.
Diseased sugarcane in sri lanka is infected with sugarcane grassy shoot andor sugarcane white leaf. Mar 15, 2009 read agronomic performance and genetic characterization of sugarcane transformed for resistance to sugarcane yellow leaf virus, field crops research on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Sugarcane yellow leaf virus infection leads to alterations in photosynthetic efficiency and carbohydrate accumulation in sugarcane leaves marcos c. Understanding plantpathogen interactions for improved. Later, several straight white to light green to yellow stripes develops parallel to the midrib develop extending along the entire leaf length, but. Knowledge bank first report of sugarcane yellow leaf virus. Sugarcane yellow leaf virus scylv was first detected in sugarcane of runion island in 1997. Infection with scylv results in intense yellowing of the midrib, which extends to the leaf blade, followed by tissue necrosis. Incidence of sugarcane yellow leaf virus in clones maintained in the world collection of sugarcane and related grasses at the united states national repository in miami, florida. Carbohydrate metabolism in mosaic virus infected sugarcane, india botanical report, 4, 1293 1989 6. Sep 30, 2015 sugarcane yellow leaf virus scylv is one of the most widespread viruses causing disease in sugarcane worldwide.
Spread of sugarcane yellow leaf virus in sugarcane plants. Specific primer pairs were designed to distinguish four genotypes bra for brazil, cub for cuba, per for peru, and reu for reunion island of sugarcane yellow leaf virus scylv by reverse transcriptionpolymerase chain reaction rtpcr. Prospecting sugarcane resistance to sugarcane yellow leaf virus by. Researchers with the university of florida institute of food and agricultural sciences are working to find a cure or develop resistant. In a comparison of growth and yield between scylvinfected and scylvfree plants of the cultivar h874094, germination and early shoot growth of infected plants were retarded. Dactyloctenium aegyptiacum, an additional host of sugarcane mosaic virus.
Although impact of the disease on cane growth is observed, no systematic study has been done so far from the tropical asian region to establish its impact on various physiological parameters, cane. Division of crop protection, sugarcane breeding institute. All three hosts are also colonized by the sugarcane aphid melanaphis sacchari, the main vector of scylv worldwide. Agronomic performance and genetic characterization. Effects of sugarcane yellow leaf virus on sugarcane yield and root system development. Impact of sugarcane yellow leaf virus scylv on the carbohydrate status of sugarcane. Impact of sugarcane yellow leaf virus on sugarcane yield. To gain an overview of the physiological status of infected plants, we evaluated chlorophyll a fluorescence and gas exchange assays, correlating the results with leaf metabolic surveys, i. In both cases, the seedcane used to establish the experiment was the first cutting from nurseries. However, populations did not merit our submission of a section 18 request to the epa for insecticide labelling, as was previously done in louisiana. Lack of transmission of sugarcane yellow leaf virus in florida from.
Effects of sugarcane yellow leaf virus on sugarcane yield. Sugarcane yellow leaf virus scylv was first detected in sugarcane of reunion island in 1997. Edis is the electronic data information source of ufifas extension, a collection of information on topics relevant to you. Detection of sugarcane yellow leaf virus scylv causing. Erratum to impact of sugarcane yellow leaf virus scylv on. Augustinegrass was first reported in the 1960s in sugarcane producing areas of florida rural palm beach county. Using gwas approaches, we detected independent resistant markers in sugarcane towards a vectored virus disease. Impact of sugarcane yellow leaf virus on sugarcane yield and juice quality inreunion island, european journal of plant pathology, 1095.
However, these pesticides and their application are very costly and may have an impact onthe environment in the long. Impact of sugarcane yellow leaf virus on growth and sugar. Infection with scylv results in intense yellowing of the midrib, which extends to the leaf blade, followed by tissue necrosis from the. Sugarcane yellow leaf virus infection leads to alterations. Ufifas researchers scramble to find cure for tenacious. The causal pathogen was isolated and identified as sugarcane yellow leaf virus scylv based on various molecular analyses. The family luteoviridae currently includes the luteovirus, polerovirus, and enamovirus genera. Yellow leaf of sugarcane is an emerging viral disease whose causal agent is a polerovirus, the sugarcane yellow leaf virus scylv transmitted by aphids. Sugarcane yellow leaf virus scylv is one of the most widespread viruses causing disease in sugarcane worldwide. Based on comparative genomics, several candidate genes potentially involved in virus aphidplant interactions were pinpointed. Distribution and identification of sugarcane mosaic and yellow leaf virus in uttar pradesh, uttaranchal and bihar states of india. Eredicating sugarcane yellow leaf virus in sugarcane variety. Later, the disease has been reported to occur in lotiisiana, florida, texas, australia.
A unique genome fragment was amplified from each genotype, with the exception of genotypes bra and per that are phylogenetically relatively close and were. The effect of sugar cane yellow leaf virus infection on yield. Yellow leaf caused by sugarcane yellow leaf virus scylv is an important disease for sugarcane industries worldwide. The yellow sugarcane aphid causes damage to sorghum, sugarcane and several species of pasture grass mediangaud et al. This is thought to be the first report of grain sorghum as a natural host for scylv. The carbohydrate concentration of old and young sugarcane plants, either virus free or infected by sugarcane yellow leaf virus, was compared. Pdf impact of sugarcane yellow leaf virus on sugarcane. The experiment was conducted in ribeirao preto, sp, brazil, on typic. The spread of sugar cane yellow leaf virus scylv in sugarcane plants was studied on reunion using virusinfected cuttings from four cultivars r570, r575, r577 and r579.
Information about the heritability of resistance to scylv is useful in designing appropriate breeding strategies likely to generate genetic gains and develop resistant varieties. The effect of sugar cane yellow leaf virus infection on. Major viral diseases affecting sugarcane production in india, sbi. Maize streak virus, sugarcane strain yellow leaf sugarcane yellow leaf virus protozoan diseases. Sugarcane yellow leaf syndrome sugarcane yellow leaf syndrome scyls is a disorder of sugarcane characterized by similar symptoms but differing in etiology. Abstract sugarcane yellow leaf virus scylv can infect many modern sugarcane varieties and cause insidious yield losses in susceptible cultivars. Yellow leaf caused by sugarcane yellow leaf virus scylv is a serious constraint to sugarcane production in india and currently the disease epidemics occur on many of the susceptible varieties under field conditions. Document has no release version edis electronic data.
Augustinegrass virus symptoms splotchy, yellow streaking on leaf blades dead spots streaking on leaf blades unhealthy yellowish tinge andor dead turfgrass often excessive weeds december 5, 2014 master gardener hotline desk. The virus cannot be controlled by heat treatments which are. Carbohydrate content in the leaves was increased as a secondary effect of the scylv infection. Geographical distribution of four sugarcane yellow leaf.
The virus was first noticed in puerto rico in 1916 and spread rapidly throughout the southern united states in the early 1920s. Ariyarathna h a c k, everard j m d t, karunanayake e h, 2007. Effects of sugarcane yellow leaf virus on sugarcane yield and root system development antonio carlos m. Scmv is of great concern because of the high economic impact it has on sugarcane and maize. Yellow leaf yl of sugarcane caused by sugarcane yellow leaf virus scylv. Populations of the sugarcane aphid, melanaphis sacchari, reached unprecedented levels in 20 and 2014, devastating grain sorghum throughout the midsouth and southeastern united states. The experiments led us to draw some insights on the impact of scylv in sugarcane yield and root system development, confirming that symptoms caused by scylv were not limited to leaves and stalks of the infected plants. There are no leaf spot or stripe symptoms such as occur with sugarcane mosaic virus. The virus has been responsible for drastic economic losses in most sugarcanegrowing regions and remains a major concern for sugarcane breeders.
A field experiment was undertaken to assess the potential impact of this virus on sugarcane production. Jun, 2009 a survey revealed that sugarcane yellow leaf virus scylv is found on all hawaiian sugarcane plantations including those where no yellow leaf symptoms were observed. This cropis currentlyaffectedby three major diseases. Spread of sugarcane yellow leaf virus in initially disease. Sugarcane yellow leaf virus, the causal agent of yellow leaf, is transmitted from plant to plant by aphids. Comparison of virusfree plants with symptomatic and asymptomatic virusinfected plants. Diseasefree tissueculture versus budpropagated sugarcane plants and healthy versus yellow leaf infected plants commercially sold as kleentek except that it did not undergo a culling to remove offtypes. It is known from the caribbean, and north, central and south america. These are transmitted from one plant to another and one field to another field either by original seed set or causal organism already in the soil or spores are carried by blowing wind. Sugarcane yellow leaf virus scylv, the causal agent of yellow leaf. Effects of sugarcane yellow leaf virus on sugarcane yield and.
The leafgalls are diagnostic and distinguish fiji disease from other diseases of sugarcane except perhaps the leafgalls recorded in kenya sheffield, 1969 which are caused by an insect toxin. Ab sugarcane yellow leaf virus scylv was first detected in sugarcane of reunion island in 1997. Field infection of virusfree sugarcane by sugarcane yellow leaf. It was first reported in the 1960s in rural palm beach county sugarcane production areas. Lehrer at, moore p, komor e 2007b impact of sugarcane yellow leaf virus on the carbohydrate status of sugarcane. Impact of sett disinfection treatments on yield and growth parameters in. Scylv and its effect on sucrose transporters in sugarcane. A series of field experiments were conducted to determine the effect of sugarcane yellow leaf virus scylv infection on cane and sucrose yield of four commercial sugarcane cultivars lcp 85384, ho 95988, hocp 96540 and l 97128 that occupied 93% of the sugarcane production area in louisiana in 2007. Major viral diseases affecting sugarcane production in.
Detection of sugarcane yellow leaf virus in quarantine and. Lack of transmission of sugarcane yellow leaf virus in. Biology, ecology, and impact of melanaphis sacchari in. High yield losses up to 50% were reported in susceptible. To identify quantitative trait loci controlling resistance to yellow leaf which are of direct relevance for breeding, we undertook a genomewide association study gwas on a sugarcane cultivar panel n 189 representative of current. Sugarcane production has been threatened by many diseases, and fungicide applications for disease control have been opted out for sustainable agriculture. Detection of sugarcane yellow leaf virus scylv causing yellow leaf disease yld of. Augustinegrass cultivars were noted, and resistance was used to minimize the impact of the disease over the. Satisfactory control was not attained until the black cheribon variety was.
Orange rust is one of the major diseases impacting sugarcane. Sugarcane yellow leaf virus infection leads to alterations in photosynthetic efficiency and carbohydrate accumulation in sugarcane leaves. Comparison of virus free plants with symptomatic and asymptomatic virus infected plants. A survey revealed that sugarcane yellow leaf virus scylv is found on all hawaiian sugarcane plantations including those where no yellow leaf symptoms. Leaf virus and effect of yellow leaf on sugarcane grown on organic and on. Information about the heritability of resistance to scylv is useful in designing appropriate breeding strategies likely to.
Incidence of and resistance to sugarcane yellow leaf virus in florida. Yellow leaf disease yld of sugarcane caused by sugarcane yellow leaf virus scylv. Status of sugarcane yellow leaf virus and its impact in different progenies. Regeneration and evaluation of somaclones of sugarcane. The disease was named for the distinct symptom it produced. Distribution back to top the yellow sugarcane aphid is thought to be a north american native. Infection by sugarcane yellow leaf virus scylv causes severe leaf. The virus has been responsible for drastic economic losses in most sugarcane growing regions and remains a major concern for sugarcane breeders.
Spread of sugarcane yellow leaf virus in sugarcane plants and. Geographical distribution of four sugarcane yellow leaf virus. Pdf impact of sugarcane yellow leaf virus scylv infection on. Conselheiro rodrigues alves 1252, cep 04014002, sao paulo, sp. The presence of sugarcane yellow leaf virus was determined by rtpcr in several sugarcane cultivars, mostly from hawaii. Read agronomic performance and genetic characterization of sugarcane transformed for resistance to sugarcane yellow leaf virus, field crops research on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The most severe yellowing symptoms were related to infection of sugarcane by the virus.
Jump to navigation jump to search this article is a list of diseases. Transgenic approach to improve the resistance of sugarcane to sugarcane yellow leaf virus scylv heather mccafferty yun j. Melanaphis sacchari is also an important pest of sugarcane throughout the world, including louisiana, florida, and texas as a vector of sugarcane yellow leaf virus. The disease seemed to disappear when resistant sugarcane varieties were developed with fewer than five positive samples identified by uf turfgrass pathologists between 200320.
Zhu hawaii agriculture research center, 94340 kunia road, waipahu, hi 96797 usa corresponding author. Yellow leaf can cause up to 25% yield losses in commercial fields, and a negative effect of scylv on sugarcane growth has been reported. Impact of sugarcane yellow leaf virus on sugarcane yield traits in progenies from four diverse crosses. Impact of sugarcane yellow leaf virus scylv on the. Impact of sett disinfection treatments on yield and growth parameters in sugarcane and. Biology and management of sugarcane yellow leaf virus. Narrowsense heritability estimates of resistance of. Influence of apical meristem and chemotherapy on production.
Eredicating sugarcane yellow leaf virus in sugarcane. Yellow leaf disease yld of sugarcane caused by sugarcane yellow leaf virus scylv, a polereovirus of the luteoviridae family is a serious disease affecting the crop production and productivity in india. We have derived the genomic nucleotide sequence of an emerging virus, the sugarcane yellow leaf virus scylv, and shown that it produces one to two subgenomic rnas. For instance, tuyv, which is widespread in european countries, induces reddeningpurpling of the leaves on oilseed rape 64. Sugarcane yellow leaf virus infection leads to alterations in. Infection by sugarcane yellow leaf virus scylv causes severe leaf symptoms in sugarcane saccharum spp. Frontiers identifying quantitative trait loci qtls and. Infection with scylv results in intense yellowing of the midrib, which extends to the. Pdf virus diseases of sugarcane a constant challenge to. The present investigation was focussed on regeneration, evaluation and screening of somaclones for yellow leaf disease yld resistance using in vitro mutagenesis from a popular susceptible sugarcane variety co86032 using four chemical mutagens at three levels of concentration sodium azide sa at 0. Sugarcane yellow leaf virus scylv was detected in the late 1990s first in hawaii as a causal agent of a sugarcane disease yellow leaf which leads to sugarcane yellow leaf syndrome and reduced sugar yield. Melanaphis sacchari isan important pest of sugarcane throughout the world, including louisiana, florida, and texas as a vector of sugarcane yellow leaf virus.
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