Sugarcane mosaic virus (SCMV) is a plant pathogenic virus of the family Potyviridae. The virus was first noticed in Puerto Rico in 1916 and spread rapidly throughout the southern United States in the early 1920s. SCMV is of great concern because of the high economic impact it has on sugarcane and maize.

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2. SUGARCAN
E MOSAIC
VIRUS
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3. ORIGI
N OF
SCMV
 The virus was first noticed
in Puerto Rico in 1916.
 Sugarcane mosaic virus
(SCMV) is a plant pathogenic
virus .
 Spread rapidly throughout the
southern United States in the
early 1920s.
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4. VIRUS
STRUC
TURE
• Photosynthetic characterization
and expression profiles of
sugarcane infected by Sugarcane
mosaic virus (SCMV).
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5. • The genome of SCMV, SrMV,
and SCSMV is represented by a
positive-sense single-stranded
RNA (+ssRNA).
• This ssRNA is of about 10 Kb.
• It consists of untranslated
regions (UTR) at both ends and
a single open reading frame
(ORF) encoding for a large
polyprotein.
GENO
ME
STRUC
TURE
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6. CLASSIFICATION OF SCMV
• Kingdom Orthornavira
• Phylum Pisuviricota
• Class Stelpaviricetes
• Order Patatavirales
• Family Potyviridae
• Genus. Potyvirus
• Species Sugarcane mosaic virus
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7. SYMPTOMS
• Yellow, white or green stripes/ streaks/ spots on foliage.
• Wrinkled, curled, or small leaves.
• Pronounced yellowing only of veins.
• Stunted growth
• Reduced yields.
• Infected fruit appears mottled and develops raised “warty”
areas.
• Dark green blisters. 7

8. CONT.
• Fig;
• Symptoms of mosaic
infection in sugarcane
leaves.
• (a). healthy leaves;
• (b). infected leaves;
• (c).severely infected
leaves;
• (d). abnormally twisted top
leaves of infected plant.
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9. • The natural hosts of SCMV include;
• Panicum (Panicum miliaceum L.)
• Millet (Setaria italica L.)
• Green bristlegrass (Setaria viridis L.)
• Johnson grass (Sorghum halepense L.)
• Sudan grass (Sorghum sudanense)
HOSTS OF SCMV
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10. TRANSMISSION OF SCMV
1. In nature, transmission of SCMV and
SrMV is primarily by several aphid
vectors including Dactynotus
ambrosiae, Hysteroneura
setariae, Longiunguis sacchari ,
and Toxoptera graminum, in a non-
persistent manner.
2. Ants also have indirect transmission
effect if they interact actively with
aphids in diseased sugarcane fields. 10

11. CONT.
Fig;
The transmission pathway of
sugarcane mosaic disease.
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12. TREATMENT OF SCMV
• To minimize spread of sugarcane mosaic virus all
equipment used should be sanitized.
• Fungicides and other pesticides have been shown to be
ineffective when dealing with viral disease.
• The best way to deal with a viral disease is through plant
host resistance.
• Remove all infected plants and destroy them.
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13. REFERENCES
1. ^ "Sugarcane mosaic virus abaca mosaic strain
(SCMVA0)[Overview]". Global Database. EPPO (European and
Mediterranean Plant Protection Organization). 2001-02-04.
Retrieved 2021-09-04.
2. www.link.Springer.com /Photosynthetic characterization and
expression profiles of sugarcane infected by Sugarcane mosaic
virus (SCMV)/2022-11-19.
3. https://pestoscope.com/product/sugarcane-mosaic-virus-scmv/
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