leaf curl of papaya ka classification Hindi science . Diseased plants produced small and distorted fruits that tend to fall prematurely. Papaya (Carica papaya L.) is the most delicious fruit grown widely under tropical and sub-tropical climates.The fruit has very thin skin and thus rough handling leads to heavy losses due to a number of rots caused by fungi and bacteria. and Sacc.) New Dis Rep 28:6, Srivastava A, Jaidi M, Kumar S, Raj SK, Shukla S (2015) Association of papaya leaf curl virus with the leaf curl disease of grain amaranth (, Sunitha S, Marian D, Hohn B, Veluthambi K (2011) Antibegomoviral activity of the agrobacterial virulence protein VirE2. J Dev Stud 43(1):177–191, Grishok A, Pasquinelli AE, Conte D, Li N, Parrish S, Ha I, Baillie DL, Fire A, Ruvkun G, Mello CC (2001) Genes and mechanisms related to RNA interference regulate expression of the small temporal RNAs that control, Guo T, Guo Q, Cui X, Liu Y et al (2015) Comparison of transmission of papaya leaf curl China virus among four cryptic species of the whitefly, Hallan V, Saxena S, Singh BP (1998a) Ageratum, croton and malvastrum harbour geminiviruses: evidence through PCR amplification. Arch Phytopathol Plant Protect. Author: Huang, Aijun; Ding, Min; Cao, Mengji; Zhang, Song; Zhong, Liqin; Wang, Ying Source: Plant disease 2020 v.104 no.4 pp. Papaya leaf curl virus (PaLCuV) is a DNA virus from the family Geminiviridae. Papaya leaf curl China virus (PaLCuCNV) is a distinct begomovirus found in Guangxi province of China (Wang et al., 2004).In recent years the virus has caused a severe leaf curl disease on papaya in southern China. 37.97.185.129. Because of the broad diversity of these viruses, their characterization and control remains difficult. References : (1) … Plant viruses are a group of plant pathogens that have enormous negative impact on horticultural crop production throughout the world. Ali Z, Abulfaraj A, Idris A, Ali S, Tashkandi M, Mahfouz M (2015) CRISPR/Cas9-mediated viral interference in plants. VirusDis. Late blight of potato, the red rot of sugarcane and black rust of wheat are fungal diseases. Phytoparasitica 8:105. doi: Raj SK, Snehi SK, Khan MS, Singh R, Khan AA (2008) Molecular evidence for association of tomato leaf curl New Delhi virus with leaf curl disease of papaya (, Raj SK, Snehi SK, Tiwari AK, and Rao GP (2010) Biological, molecular identification and management strategies of Begomovirus infecting cucurbitaceous crops in India, Published from LLC Press USA (2010) Recent trades in Plant Virology. doi: Dubey DK, Tiwari AK, Upadhyay PP (2015b) Survey, incidence and serological identification of papaya leaf curl virus in eastern Uttar Pradesh. [2] This virus is transmitted by an insect vector from the family Aleyrodidae and order Hemiptera, the whitefly Bemisia tabaci. Springer, New York, pp 230–257, Mishra SK, Chilakamarthi U, Deb JK, Mukherjee SK (2014) Unfolding of in planta activity of anti-rep ribozyme in presence of a RNA silencing suppressor. In severe case the affected leaves may drop off and stop the plant growth. Main symptoms of papaya leaf curl disease are inward/outward curling of plant leaves, vein thickening, and stunted plant growth with small distorted fruits or no fruits. Also the diseased plants do not die quickly, never recover, and if allowed to stand in the field they help spread of disease to healthy plants. Plant Cell 5:1749–1759, Lopez EP, Pantoja ML (2012) Main bacterial diseases affecting papaya, pineapple and mangoes. Several diagnostic techniques especially molecular techniques have been developed to detect the begomoviruses at early stages of infection to control the further spread of the begomovirus, but so far not much reports are available to control the begomoviral infection at later stage. Southwest China Journal of Agricultural Sciences 23, 1917–1922 (in Chinese with English summary, 2010). Not affiliated J Plant Biochem Biotechnol 25(2):199–207. It is mainly transmitted by whiteflies. IOSR-JBM 16(7):20–23, Ilyas M, Qazi J, Mansoor S, Briddon RW (2010) Genetic diversity and phylogeography of begomoviruses infecting legumes in Pakistan. Leaf curl disease is transmitted by the vector whitefly. The plants are also reduced in size. Infected papaya developed symptoms such as downward curling of leaves, twisted petioles, vein en … However, in some specific cases, it can result in severe economic losses. [1], PaLCuV is transmitted by the insect vector Bemisia tabaci in a persistent-circulative nonpropagative manner. These symptoms are similar to those of cotton leaf curl disease. The disease generally appears in the end of June about 45 … Science 232:738–743. Papaya leaf curl disease was first reported in India in 1939 (1). , p 364, Flint ML ( 2015 ) Integrated pest management homes. Crumpling and distortion symptoms ( Fig 1a ) and leaf drop of veins on leaves ( Fig papaya has economic! 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