Maize Streak Virus: I. Host Range and Vulnerability of Maize Germ Plasm

Plant Disease ◽  
1983 ◽  
Vol 67 (7) ◽  
pp. 734 ◽  
Author(s):  
Vernon D. Damsteegt
Keyword(s):  
Host Range ◽  
Germ Plasm ◽  
Maize Streak Virus ◽  
Streak Virus ◽  
Maize Germ

scholarly journals Studies on Maize streak virus and Maize mottle/chlorotic stunt virus in Lagos, Nigeria

Plant Disease ◽  
2006 ◽  
Vol 90 (2) ◽  
pp. 199-202 ◽  
Author(s):  
M. A. Taiwo ◽  
J. d'A. Hughes ◽  
K. E. Oke
Keyword(s):  
Local Government ◽  
Germ Plasm ◽  
Maize Streak Virus ◽  
Dry Season ◽  
Enzyme Linked Immunosorbent Assay ◽  
Streak Virus ◽  
Wet Season ◽  
Visual Examination ◽  
Effective Utilization ◽  
Coated Plate

Despite the development and deployment of maize streak-resistant (SR) germ plasm, virus-induced symptoms are still commonly observed on maize in Lagos, Nigeria. Therefore, surveys were conducted between April 2001 and February 2002 to determine the identity, prevalence, and incidence of maize viruses in 18 local government areas (LGAs) in and around Lagos by visual examination and serodiagnostic screening of symptomatic plants. All 112 fields surveyed during the dry season (September to December) and 18 fields surveyed during the late dry season (December to February) had plants infected by Maize streak virus (MSV), whereas 97.1% of the 170 fields surveyed during the wet season (April to August) had plants infected by MSV. Maize mottle/chlorotic stunt virus (MMCSV) was prevalent in 99.1, 88.9, and 67.4% of the fields surveyed during the dry, late dry, and wet seasons, respectively. The incidence of MSV was higher in 16 of the LGAs. The highest incidence of MSV was 18.9%, whereas that of MMCSV was 7.4%. Serodiagnostic screening of leaf samples showing virus-induced symptoms, using antigen-coated plate enzyme-linked immunosorbent assay, indicated that 1,192/1,475 (80.8%) and 949/1,210 (78.4%) of the samples were positive for MSV and MMCSV, respectively. Vector transmission and host range studies confirmed the identity of the viruses. The results confirm the presence of MSV and MMCSV in Lagos and suggest that the use of MSV-susceptible cultivars is still widespread. Methods of ensuring effective utilization of existing SR germ plasm and controlling maize viruses in general are discussed.

Host range and symptoms are determined by specific domains of the maize streak virus genome

Virology ◽  
1991 ◽  
Vol 181 (1) ◽  
pp. 312-318 ◽  
Author(s):  
Margaret I. Boulton ◽  
Donna I. King ◽  
Peter G. Markham ◽  
Marion S. Pinner ◽  
Jeffrey W. Davies
Keyword(s):  
Host Range ◽  
Virus Genome ◽  
Maize Streak Virus ◽  
Streak Virus

Point substitutions in a promoter-like region and the V1 gene affect the host range and symptoms of maize streak virus

Virology ◽  
1991 ◽  
Vol 183 (1) ◽  
pp. 114-121 ◽  
Author(s):  
Margaret I. Boulton ◽  
Donna I. King ◽  
Jonathan Donson ◽  
Jeffrey W. Davies
Keyword(s):  
Host Range ◽  
Maize Streak Virus ◽  
Streak Virus

scholarly journals Resistance of Four Inbred Maize Lines to Inoculation with 20 Isolates of Maize streak virus from Zimbabwe

Plant Disease ◽  
2006 ◽  
Vol 90 (12) ◽  
pp. 1485-1489 ◽  
Author(s):  
S. Mawere ◽  
V. Vincent ◽  
J. De Meyer ◽  
K. V. Pixley
Keyword(s):  
Symptom Severity ◽  
Germ Plasm ◽  
Inbred Lines ◽  
Maize Streak Virus ◽  
Sub Saharan Africa ◽  
Streak Virus ◽  
Symptom Scores ◽  
Sub Saharan ◽  
The Stability ◽  
Important Disease

Maize streak is the most widespread and important disease of maize in sub-Saharan Africa. Maize streak virus (MSV)-resistant maize germ plasm is available in several countries, but little is known about the stability of its resistance to MSV strains that may differ from one region to another. We used four maize inbred lines (CML312, CML206, CML216, and MSR) known to differ widely for their resistance to MSV in Harare, and evaluated their resistance to 20 MSV isolates collected from the wild during 2 years at locations across Zimbabwe. Maize streak development and symptom severity were evaluated in replicated greenhouse experiments using artificial inoculation via viruliferous leafhoppers. All 20 MSV isolates induced maize streak symptoms on moderately and highly susceptible genotypes by about 1 week after inoculation (WAI). Differences among isolates for severity of early maize streak symptoms were ephemeral, and resistance was accurately differentiated by all isolates by 3 to 4 WAI. Differences in final maize streak symptom scores induced by the isolates were statistically significant, but differed only by a maximum of 7% in 1999 and 19% in 2000. Although genotype, isolate, and genotype by isolate effects for maize streak symptom scores were significant (P < 0.01), relative MSV resistance of the genotypes was consistently ranked by all 20 MSV isolates.

scholarly journals Symptom evolution following the emergence of maize streak virus

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Adérito L Monjane ◽  
Simon Dellicour ◽  
Penelope Hartnady ◽  
Kehinde A Oyeniran ◽  
Betty E Owor ◽  
...  
Keyword(s):  
Host Range ◽  
Phylogenetic Signal ◽  
Mortality Rates ◽  
Maize Streak Virus ◽  
Streak Virus ◽  
Broad Host Range ◽  
The Past ◽  
Trade Offs ◽  
Maize Genotypes ◽  
Single Host

For pathogens infecting single host species evolutionary trade-offs have previously been demonstrated between pathogen-induced mortality rates and transmission rates. It remains unclear, however, how such trade-offs impact sub-lethal pathogen-inflicted damage, and whether these trade-offs even occur in broad host-range pathogens. Here, we examine changes over the past 110 years in symptoms induced in maize by the broad host-range pathogen, maize streak virus (MSV). Specifically, we use the quantified symptom intensities of cloned MSV isolates in differentially resistant maize genotypes to phylogenetically infer ancestral symptom intensities and check for phylogenetic signal associated with these symptom intensities. We show that whereas symptoms reflecting harm to the host have remained constant or decreased, there has been an increase in how extensively MSV colonizes the cells upon which transmission vectors feed. This demonstrates an evolutionary trade-off between amounts of pathogen-inflicted harm and how effectively viruses position themselves within plants to enable onward transmission.

Maize streak virus research in Africa: an end or a crossroad

2021 ◽  
Author(s):  
Mary Emeraghi ◽  
Enoch G. Achigan-Dako ◽  
Chibuzo N. C. Nwaoguala ◽  
Happiness Oselebe
Keyword(s):  
Maize Streak Virus ◽  
Streak Virus ◽  
Virus Research

Resistance of South African maize hybrids to maize streak virus

1991 ◽  
Vol 8 (1) ◽  
pp. 38-42 ◽  
Author(s):  
G. D.J. van Rensburg ◽  
J. H. Giliomee ◽  
K. L. Pringle
Keyword(s):  
South African ◽  
Maize Streak Virus ◽  
Streak Virus ◽  
Maize Hybrids
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