scholarly journals Differential molecular response of maize and Johnson grass against maize dwarf mosaic virus and bermuda grass southern mosaic virus

2019 ◽  
Vol 63 (01) ◽  
pp. 70-79 ◽  
Author(s):  
F. S. MOSTAFAVI ◽  
S. K. SABBAGH ◽  
A. YAMCHI ◽  
S. NASROLLANEJAD ◽  
N. PANJEHKEH
1981 ◽  
Vol 32 (5) ◽  
pp. 741 ◽  
Author(s):  
DM Persley ◽  
IF Martin ◽  
RS Greber

Maize inbred lines, derived from both Australian and exotic sources, and used in a breeding programme at Kairi, Qld, were screened for resistance to a Johnson grass strain of sugarcane mosaic virus (SCMV-Jg). There was a good correlation between ratings made following manual inoculation in a glasshouse and those following exposure to natural field infection. Seven lines were highly resistant in both glasshouse and field ratings. A further nine lines showed an intermediate level of resistance following manual inoculation and developed from 0 to 7 % infection under field conditions when a susceptible line developed 99 % infection. Data obtained following the manual inoculation of plants in segregating generations of crosses between resistant KL 57 and susceptible KL 9 were consistent with resistance being controlled by a single dominant gene. Six lines (Pa 405, CI 44, Tx 601, Oh 07, Oh 7B, 38-11) that were used as sources of resistance to maize dwarf mosaic virus, strain A (MDMV-A) in the U.S.A. developed natural infection levels of less than 15% with SCMV-Jg. Only Pa 405 was highly resistant to manual inoculation. Four of 11 SCMV-Jg resistant lines were also highly resistant to manual inoculations with the sugarcane, Sabi grass and Queensland blue couch grass strains.


1968 ◽  
Vol 19 (5) ◽  
pp. 767 ◽  
Author(s):  
RH Taylor ◽  
RD Pares

Two isolates of maize dwarf mosaic virus originating from maize (MDMV(M)) and Johnson grass (MDMV(J)) were distantly related to an Australian and a Californian strain of sugar-cane mosaic virus (SMV). MDMV(M) was shown to be distantly related serologically to a Californian strain but not to an Ohio strain of MDMV; MDMV(J) was not shown to be related serologically to either the Californian or the Ohio strain of MDMV. MDMV(M), MDMV(J), and the Australian SMV produced similar symptoms on sweet corn (Zea mays var. saccharata (Sturtev)), which under glasshouse conditions included an initial necrotic phase not previously described for MDMV. The three isolates showed different characteristics when purified from sweet corn by an identical procedure. The yields of MDMV(M) and MDMV(J) were higher than that of SMV, and these two isolates produced strong zones in density gradients whereas SMV produced a very weak zone. The normal length of MDMV(M) was 773 ± 6.35 mµ and that of MDMV(J) 778 ± 6.35 mµ and the particles of both were uniform. By contrast the particles of SMV were very uneven in length; the most common length was 650–750 mµ, but many longer and shorter particles were observed.


Author(s):  

Abstract A new distribution map is provided for Maize dwarf mosaic virus Viruses: Potyviridae: Potyvirus Hosts: Maize (Zea mays), sorghum (Sorghum bicolor), also sugarcane (Saccharum officinarum), millet (Panicum miliaceum) and many other Poaceae. Information is given on the geographical distribution in EUROPE, Bosnia-Herzegovina, Bulgaria, Croatia, Czech Republic, France, Germany, Greece, Hungary, Italy, Romania, Central Russia Russia, Spain, Ukraine, Yugoslavia (Fed. Rep.), ASIA, China, Gansu, Hebei, Hubei, Jiangsu, Liaoning, Shaanxi, Shandong, Shanxi, India, Maharashtra, Uttar Pradesh, Iran, Iraq, Israel, Kazakhstan, Korea Republic, Pakistan, Taiwan, Turkey, Uzbekistan, Yemen, AFRICA, Burkina Faso, Cameroon, Cote d'Ivoire, Egypt, Ethiopia, Mauritius, Morocco, South Africa, Zambia, Zimbabwe, NORTH AMERICA, Canada, Ontario, Mexico, USA, Alabama, Arkansas, California, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, Washington, Wisconsin, CENTRAL AMERICA & CARIBBEAN, Cuba, Haiti, Honduras, SOUTH AMERICA Argentina, Brazil, Goias, Minas Gerais, Sao Paulo, Chile, Colombia, Peru, Venezuela, OCEANIA, Australia, Queensland, Victoria.


1990 ◽  
Vol 26 (4) ◽  
pp. 363-368 ◽  
Author(s):  
Gy. Kovács ◽  
I. Milinkó ◽  
O. Gyulavári ◽  
L. Farády

2011 ◽  
Vol 46 (4) ◽  
pp. 362-369 ◽  
Author(s):  
Marcos Cesar Gonçalves ◽  
Diogo Manzano Galdeano ◽  
Ivan de Godoy Maia ◽  
César Martins Chagas

O objetivo deste trabalho foi caracterizar biológica e molecularmente três isolados de Sugarcane mosaic virus (SCMV) de lavouras de milho, analisá-los filogeneticamente e discriminar polimorfismos do genoma. Plantas com sintomas de mosaico e nanismo foram coletadas em lavouras de milho, no Estado de São Paulo e no Município de Rio Verde, GO, e seus extratos foliares foram inoculados em plantas indicadoras e submetidos à análise sorológica com antissoros contra o SCMV, contra o Maize dwarf mosaic virus (MDMV) e contra o Johnsongrass mosaic virus (JGMV). Mudas de sorgo 'Rio' e 'TX 2786' apresentaram sintomas de mosaico após a inoculação dos três isolados, e o DAS-ELISA confirmou a infecção pelo SCMV. O RNA total foi extraído e usado para amplificação por transcriptase reversa seguida de reação em cadeia de polimerase (RT-PCR). Fragmentos específicos foram amplificados, submetidos à análise por polimorfismo de comprimento de fragmento de restrição (RFLP) e sequenciados. Foi possível discriminar os genótipos de SCMV isolados de milho de outros isolados brasileiros do vírus. Alinhamentos múltiplos e análises dos perfis filogenéticos corroboram esses dados e mostram diversidade nas sequências de nucleotídeos que codificam para a proteína capsidial, o que explica o agrupamento separado desses isolados e sugere sua classificação como estirpes distintas, em lugar de simples isolados geográficos.


Sign in / Sign up

Export Citation Format

Share Document