M. Masumi

Iranian Research Institute of Plant Protection

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K. Izadpanah

Shiraz University

K. Izadpanah

Shiraz University

Alireza Afsharifar

Shiraz University

A. Zare

Yasouj University

Anoush Azarfar

Mashhad University of Medical Sciences

Zand Eskandar

Agricultural Research & Education Organization

S Nasrolahnejad

Gorgan University of Agricultural Sciences and Natural Resources

Seyyed Rasoul Sahhafi

Vali Asr University of Rafsanjan

Ahad Yamchi

Gorgan University of Agricultural Sciences and Natural Resources

Majid Siampour

Shahrekord University

Cooperative Institutions

Shiraz University

Agricultural Research & Education Organization

Soil Conservation and Watershed Management Research

University of California, Davis

Plant (United States)

Isfahan University of Technology

Institute for Sustainable Plant Protection

University of Bari Aldo Moro

Consorzio Roma Ricerche

Islamic Azad University, Ahvaz Branch

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ASSESSMENT OF LOSSES BY WHEAT STREAK MOSAIC VIRUS

M. Masumi K. Izadpanah Joukar Ladan M. Kheradnam

Streak

Mosaic

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Wheat eqlid mosaic virus: a novel Potyviridae in Iran.

M. Masumi M Falahati Rastegar A. Zare D.‐E. Lesemann F. Ebrahim‐Nesbat

Wheat Eqlid mosaic virus (WEqMV) was first recorded from north of Fars Province (Iran) in 1995. It has filamentous particles of about 900 nm in length and causes mosaic symptoms in wheat. WEqMV had no serological relationship with Wheat streak mosaic Tritimovirus, Wheat spindle streak mosaic Bymovirus, Barley yellow mosaic Bymovirus, Barley mild mosaic Bymovirus, Wheat yellow leaf Closterovirus, Sugarcane mosaic Potyvirus, Iranian Johnson grass mosaic potyvirus, Bermuda grass southern mosaic potyvirus and Bermuda grass mosaic virus. Electron microscopy of thin sections of infected wheat leaf indicated presence of pinwheel inclusion bodies in the cytoplasm of parenchymatous cells. Host range of WEqMV is narrow and restricted to several gramineous species. Wheat, rye, Bromus sterilis, Setaria viridis and Echinochloa colona were found to be natural hosts of WeqMV, all showing typical mosaic symptoms. The virus was not transmitted by Sitobion avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum and wheat curl mite, Aceria tulipae. Examination of 300 infected samples showed no sign ofPolymyxa graminis association. Sequence analysis of about 700 nt of the 3'-region of WEqMV genome showed no identity with any other virus in Potyviridae. It showed only similarity in amino acid sequences with sugarcane streak mosaic virus. On the basis of the results of electron microscopy, serology, host range, transmission and sequence analysis, WEqMV is a new addition to Potyviridae and probably representative of a new genus in this family.

Potyviridae

Rhopalosiphum padi

Mosaic virus

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Widespread occurrence of rhizomania-like disease of sugarbeet in Fars.

Bīmārīhā-yi giyāhī (Online)/Bīmārīhā-yi giyāhī (Print) (1996)

K. Izadpanah Pezhman Hashemi Ruhi Kamran M. Pakniat A. Sahandpour

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Localization of genetic determinants for pathogenicity of Maize dwarf mosaic virus and Bermudagrass southern mosaic virus

bioRxiv (Cold Spring Harbor Laboratory) (2019)

Farveh sadat Mostafavi Neyshabouri Ahad Yamchi Seyed Kazem Sabbagh M. Masumi

Abstract Maize dwarf mosaic virus (MDMV) and Bermuda grass southern mosaic virus (BgSMV) are economically important potyviruses of cereals. BgSMV is very similar in genomic sequence to MDMV, but cannot infect Johnsongrass and is not transmitted by Rhopalosiphum maidis . Comparison of their genomes showed an additional stretch of 90 nucleotides in BgSMV coat protein but not in MDMV. Since the 90-nucleotide region is located in the N-terminal of BgSMV coat protein, it seems to have a role in biological properties such as vector transmission and pathogenicity. Recombinant virus constructs were made with and without the 90 nucleotides using SOEing PCR (MDMV (+90) and BgSMV (−90). Johnsongrass plants inoculated with the wild-type MDMV and recombinant BgSMV (−90) showed mosaic symptoms after 16 and 23 days, respectively, whereas plants inoculated with the wild-type BgSMV and recombinant MDMV (+90) didn’t show any symptoms until three months after inoculation. The qRT-PCR results detected significantly higher levels of BgSMV (−90) and MDMV compared to BgSMV and MDMV (+90), respectively. Also, R. maidis was able to transfer only the wild type MDMV and BgSMV (−90) from infected to healthy plants. These results confirmed that the insertion of the 90-nt region into the coat protein of MDMV affects the pathogenicity of the virus.

Rhopalosiphum maidis

Mosaic virus

10.1101/651372

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Integrated management of viral diseases of winter wheat in Chahar Mahal va Bakhtiari province.

Bīmārīhā-yi giyāhī (Online)/Bīmārīhā-yi giyāhī (Print) (2010)

N Sahragard K. Izadpanah G. Babaee R. Eshaghe Alireza Afsharifar

Winter wheat

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