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3 edition of Rice tungro virus disease found in the catalog.

Rice tungro virus disease

Rice tungro virus disease

a paradigm in disease management

  • 216 Want to read
  • 36 Currently reading

Published by PhilRice, HRI in [Los Baños], Chiba, Japan .
Written in English

    Subjects:
  • Rice tungro spherical virus -- Asia.,
  • Rice -- Diseases and pests -- Asia.,
  • Plant viruses -- Asia.

  • Edition Notes

    Includes bibliographical references and index.

    StatementE.R. Tiongco, E.R. Angeles, L.S. Sebastian, editors.
    ContributionsTiongco, E. R., Angeles, E. R., Sebastian, L. S., Philippine Rice Research Institute.
    Classifications
    LC ClassificationsSB608.R5 R53 2008
    The Physical Object
    Paginationix, 262 p. :
    Number of Pages262
    ID Numbers
    Open LibraryOL22666994M
    ISBN 109789719081487
    LC Control Number2008337431

    Rice tungro (RTV) disease is a composite virus diseasc3 •4•9 •13> transmitted mainly by the green leaf­ hopper (GLH), Nephotellix virescens51•16>. The incidences of RTV emerged as one of the most destructive rice diseases in tropical Asia shortly af­ ter the introduction of new technologies to increaseCited by: Introduction. Rice tungro disease was first described by Anon. ()and Rivera & Ou ().The first description of rice tungro spherical virus (RTSV) was by Galvez ()and the role of RTSV as a member of the virus complex that causes tungro disease was recognized by Hibino et cause of waika disease of rice, first described by Saito (), was reported .

    Rice tungro is one of the few plant viruses which has attracted attention in recent times. This monograph should be useful to all working on rice tungro as well as other plant pathologists, scientists and students and teachers of general agriculture and botany. Rice tungro is caused by simultaneous infection of two different viruses: Rice tungro bacilliform virus (RTBV) having a double stranded circular DNA genome and Rice tungro spherical virus (RTSV) having a single stranded RNA genome. Procedure for Observation. Select 4 one square meter plot at random.

    Durable resistance to rice tungro disease 2. Rice varieties and advanced breeding lines evaluated for resistance to leafhopper vectors and to tungro viruses at two locations in each of the three countries (India, Indonesia and Philippines) and recommended for deployment in specific localities to provide durable resistance to RTVD. Size: KB. The purpose of this chapter is to introduce the reader to the major or devastating diseases of rice. In the Fig, three fungal diseases, blast, sheath blight and sheath-rot, the bacterial disease, bacterial blight (BB) of rice and the viral disease, rice tungro disease (RTD), are listed as major diseases of by: 4.


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Rice tungro virus disease Download PDF EPUB FB2

Virus diseases of rice RICE TUNGRO VIRUS Y asuo SA Hirovuki HIBIN0 21, Toshihiro OM and IN0UE41 Abstract Rice tungro disease was found to be associated with a virus complex composed of two different viruses and these viruses were described as rice tungro spherical virus (RTSV) and rice tungro bacilliform virus (RTBV).

Cited by: 3. LAP Lambert Academic Publishing () € 61, 90 Rice tungro disease (RTD) is a major constraint in production of rice (Oryza sativa L.) not only in India but in all South and Southeast Asia. Host plant resistance is the most effective and economical method for control of this virus :   Jefferson, Osmat Azzam () Rice Tungro.

In Lapierre, H. & Signoret, P. (Eds.) Virus and virus diseases of Poaceae (Gramineae). INRA edition, France, pp. Book: Rice tungro. see more details, stated to be the most important virus disease of rice in south and southeast Asia is presented in this book. see more details; management of the disease; and resistance to tungro.

Rice waika virus [rice tungro spherical ribotungrovirus] is also discussed. Full symptoms occur if both rice tungro spherical virus (RTSV) and rice tungo bacilliform virus (RTBV) are present. RTSV enhances the tungro symptoms produced by RTBV.

These symptoms vary in rice plants (Oryza sativa) of differing ages. Initial symptoms often begin with the yellowing of leaf tips, which then develop into yellow to orange. Nuque FL, Miah SA, A rice virus disease resembling tungro in East Pakistan.

In: Plant Disease Reporter, 53 Omura T, Inoue H, Thapa U B, Saito Y, Association of rice tungro spherical virus and rice tungro bacilliform virus with the disease in Janakpur, Nepal.

International Rice Research Newsletter. 6 (6), ABSTRACT THOMAS, J., and V. JOHN. Suppression of symptoms of rice tungro virus disease by carbendazim.

Plant Disease High concentrations of carbendazim (Bavistin WP) markedly reduced leaf chlorosis, stunting, and decreased number of tillers by tungro virus disease in rice plants. Etiology: It is a composite disease caused by two morphologically unrelated viruses: Rice Tungro Bacilliform Virus (RTBV) and Rice Tungro Spherical Virus (RTSV).RTBV has a bacilliform capsid or bullet-shaped particles ( x 30 nm) made up of a single piece of the coat protein of MW 36 K and a single molecule of circular ds DNA of KbP.

The Biology, Epidemiology, and Management of Rice Tungro Disease in Asia Article (PDF Available) in Plant Disease 86(2) February. Rice tungro disease is caused by the combination of two viruses, which are transmitted by leafhoppers. It causes leaf discoloration, stunted growth, reduced tiller numbers and sterile or partly filled grains.

Tungro infects cultivated rice, some wild rice relatives and other grassy weeds commonly found in rice paddies. Why and where it occurs.

Alternate host of rice tungro virus and its vector. Plant Dis. Rep., 58(9): Ischaemum rugosum-a potential alternate host of rice tungro viruses in West Bengal.

Thirteen granular insecticides were screened under glasshouse conditions for their ability to kill the vector, Nephotettix virescens, and to prevent tungro virus uran, bendiocarb, isoprocarb, BPMC, disulfoton, mephosfolan and phorate caused % vector mortality, but only the first four reduced virus infection to an acceptable level; the remainder killing the vector too Cited by: 9.

Rice tungro disease (RTD) consists of a spherical virus (RTSV) and a bacilliform virus (RTBV) and the disease is a significant yield constraint in rice-growing areas of South and Southeast Asia.

Disease symptoms are caused largely by infection by the rice tungro bacilliform virus Author: Samuel S. Gnanamanickam. The disease complex is associated with rice tungro baciliform virus (RTBV) and rice tungro spherical virus (RTSV).

RTBV cannot be transmitted by leafhoppers unless RTSV is present. Insects could acquire the virus from any part of the infected plant. After acquiring the virus, the vector can immediately transmit to the plants. RTBV does not occur as an independent disease, but is associated with its helper virus Rice tungro spherical virus (RTSV).

Together they cause rice tungro disease. RTBV causes the tungro symptoms, while RTSV does not cause any distinct symptoms except mild plant stunting.

However, it does enhance the symptoms caused by RTBV (Hibino et al., ). How is tungro disease initiated in the field. Green leafhoppers (GLH) that have acquired the viruses (rice tungro bacilliform virus or RTBV and rice tungro sperical virus or RTSV) after feeding on infected plants, stubbles or volunteer rice in nearby fields Infected seedlings transplanted in the field New growth from i.

Asia. The Tungro disease, fairly widespread in this region is caused by the joint infection with two dissimilar viruses; a DNA virus with a bullet shape, the Rice tungro bacilliform virus (RTBV) and the icosahedral RNA virus, Rice tungro spherical virus (RTSV)4,5.

The symptoms exhibited by plants affected by tungro, the typical yellow. An epidemiological model for tungro, a vector-born virus disease of rice, developed. • The model consisting of GLH population module and tungro virus infection module.

• The model successfully validated in a good agreement with observed incidence data. • Enabling a seasonal rice disease risk prediction using seasonal climate : Kwang-Hyung Kim, Avelino D. Raymundo, Christianne M. Aikins. Rice tungro bacilliform virus was first described by Saito in Galves () purified the virus and reported that the particles are polyhedral with a diameter of : Caulimoviridae.

Book Section Additional Information: [1] This is Chapter 6 of Uncontrolled Keywords: rice tungro virus disease, rice, disease management: Subjects: S Agriculture > SB Plant culture: Faculty / Department / Research Group: Faculty of Engineering & Science > Cited by: 2.

Rice tungro, which means “degenerated growth” in a Philippine dialect, is a devastating disease caused by coinfection with two morphologically and genetically different viruses, Rice tungro spherical virus (RTSV) and Rice tungro bacilliform virus (RTBV), depicted in Fig. The viruses are common in mixed infections in South and South East Asia where they cause .Weed Host Range of Rice Tungro virus disease some of the infected host plants.

Rice is the preferred host of leafhopper vector i.e., N. virescens although it feeds on other alternate hosts like Eleusine indica, Cynodon dactylon and Cyperus rotundus. Green leafhopper can also feed on a number of graminaceous.therefore, difficult to control (Ou, ). Rice tungro is a composite disease caused by a bacilliform DNA pararetro virus (rice tungro bacilliform virus, RTBV) and a spherical RNA plant picorna virus (rice tungro spherical virus, RTSV) leading to yellow-orange discoloration and stunting of the infected plants (Muralidharan.

et alCited by: 1.