Restriction endonuclease analysis and mapping of the genomes of granulosis viruses isolated from Xestia c-nigrum and five other noctuid species

Goto, Chie; Minobe, Yuzo; Iizuka, Toshihiko

doi:10.1099/0022-1317-73-6-1491

Cited by 27 publications

(20 citation statements)

References 35 publications

(36 reference statements)

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“…Restriction profiles did not show any noticeable submolar bands, indicating that the virus isolated by serial passages in vivo was genetically homogeneous. The electrophoretic profiles were essentially identical to those of TnGV DNA reported by Smith & Summers (1978) and were different from those reported for other GV genomes (Smith & Summers, 1978;Tweeten et al, 1980;Crook, 1981;Burges, 1983;Harvey & Volkman, 1983;Harvey & Tanada, 1985;Arif et al, 1986;Crook, 1986;Dwyer & Granados, 1987;Easwaramoorthy & Cory, 1990;Goto et al, 1992).…”

Section: Restriction Endonuclease Analysis" and Construction Of Genomsupporting

confidence: 61%

“…(Hashimoto et al, 1991) and Pseudaletia unipuncta (Pu) GV (Corsaro et al, 1993); the iap gene of Cydia pomoneIla (Cp) GV (Crook et al, 1993); and the basic DNA-binding protein gene of C1GV (Jehle & Backhaus, 1994a). Physical maps have been constructed for Pieris rapae (Pr) GV (Dwyer & Granados, 1987), CpGV (Crook et al, 1985), Xestia c-nigrum (Xc) GV (Goto et al, 1992), TnGV (Hashimoto et al, 1991), C1GV (Jehle et al, 1992) and several isolates of Artogeia rapae (At) GV (Smith & Crook, 1988a, b, 1993.…”

Section: Introductionmentioning

confidence: 99%

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Physical mapping and identification of interspersed homologous sequences in the Trichoplusia ni granulosis virus genome

Hashimoto

Hayashi

Okuno

et al. 1996

Journal of General Virology

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Section: Restriction Endonuclease Analysis" and Construction Of Genomsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Physical mapping and identification of interspersed homologous sequences in the Trichoplusia ni granulosis virus genome

Hashimoto

Hayashi

Okuno

et al. 1996

Journal of General Virology

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“…The restriction patterns of EpapGV DNA were distinct from those published for other GVs (3,4,5,7,11,14,31,33,37,39) (Fig. 2B and C).…”

mentioning

confidence: 76%

Characterization of a Granulovirus Isolated from Epinotia aporema Wals. (Lepidoptera: Tortricidae) Larvae

Sciocco-Cap¹,

Parola

Goldberg³

et al. 2001

Appl Environ Microbiol

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A granulovirus (GV) isolated from Epinotia aporema (Lepidoptera: Tortricidae)-a major soybean pest-was studied in terms of its main morphological, biochemical, and biological properties. The ovoidal occlusion bodies were 466 by 296 nm in size, and their most prominent protein had an apparent molecular mass of 29 kDa. Its amino-terminal sequence was remarkably homologous to that of the granulins of other GVs. The DNA genome size was estimated to be 120 kbp. The high specificity and pathogenicity of this newly described granulovirus (EpapGV) indicate that it is indeed a good candidate for the biological control of this pest.The bean shoot borer, Epinotia aporema (Wals.), is a serious pest of soybean and other legume crops in South America. In Argentina, damages caused by this tortricid decrease soybean yields up to 40%, depending on population level and environmental conditions (18). Currently, broad-spectrum chemical insecticides are used to control this caterpillar, delaying or suppressing field colonization by natural enemies. This scenario compromises the implementation of a proper integrated pest management scheme for soybean crops, in areas where the incidence of E. aporema reaches high population levels (25).Among pathogens, a granulovirus (GV) was detected as the main mortality factor (6, 26). In general, the potential of baculoviruses for pest control has been well documented and they have proven to be effective against many pests (9,15,24). In this regard, preliminary experiments showed that E. aporema GV (EpapGV) could be a safe alternative for inclusion in soybean pest management (25). However, former studies were directed towards evaluating its virulence, and none of the previously cited reports addressed the characterization of the virus. As an initial point in our research, we identified and characterized a GV isolate from E. aporema, indigenous to the main soybean area of Argentina.Virus isolation and multiplication. A colony of E. aporema caterpillars reared on artificial medium (12) was established in our laboratory. EpapGV was isolated from a single E. aporema larva collected in Oliveros (Santa Fe, Argentina). Viral amplification was carried out, allowing fourth-instar larvae to feed on formalin-free artificial diet, superficially contaminated with 4,000 granules per mm 2 . Granules were purified from homogenized larvae by two cycles of centrifugation on continuous 40 to 65% (wt/wt) sucrose gradients at 100,000 ϫ g for 1 h. Virions were released by hydrolyzing granules in 0.1 M Na 2 CO 3 -0.17 M NaCl-0.01 M EDTA (pH 10.5) at 37°C for 30 min. Following the dissolution of the granules, the suspension was neutralized by addition of 1 M HCl, and undissolved material was removed by low-speed centrifugation.Electron microscopy. Tissues were dissected from infected and control larvae, fixed in 3% glutaraldehyde in 0.1 M cacodylate buffer (pH 7.3)-0.25 M sucrose for 3 h, postfixed in 1% osmium tetroxide for 1 h, dehydrated through an ethanolpropylene oxide series, and embedded in Epon-Araldite resin. Ul...

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“…The XcGV clone (alpha-4) was isolated and provided by C. Goto. XcGV was propagated in early-third-instar Pseudaletia separata larvae as described previously (6). XcGV granules were collected from XcGV-infected fat body tissues as described previously (6).…”

Section: Methodsmentioning

confidence: 99%

“…XcGV was propagated in early-third-instar Pseudaletia separata larvae as described previously (6). XcGV granules were collected from XcGV-infected fat body tissues as described previously (6). Wild-type (WT) BmNPV (T3 strain) (21), BmNPV-abb (a transfer virus) (34), BmCysPD (26), BmMMP, and BmMMPCysPD were propagated in BmN (BmN-4) cells.…”

Section: Methodsmentioning

confidence: 99%

Structural and Functional Analysis of the Xestia c-nigrum Granulovirus Matrix Metalloproteinase

Okano

Maeda

2000

J Virol

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Restriction endonuclease analysis and mapping of the genomes of granulosis viruses isolated from Xestia c-nigrum and five other noctuid species

Cited by 27 publications

References 35 publications

Physical mapping and identification of interspersed homologous sequences in the Trichoplusia ni granulosis virus genome

Physical mapping and identification of interspersed homologous sequences in the Trichoplusia ni granulosis virus genome

Characterization of a Granulovirus Isolated from Epinotia aporema Wals. (Lepidoptera: Tortricidae) Larvae

Structural and Functional Analysis of the Xestia c-nigrum Granulovirus Matrix Metalloproteinase

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