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Erkki Truve - One of the best experts on this subject based on the ideXlab platform.
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Rottboellia yellow mottle virus is a distinct species within the genus Sobemovirus
Archives of Virology, 2015Co-Authors: Merike Sõmera, Erkki TruveAbstract:Once considered a tentative member of the genus Sobemovirus , Rottboellia yellow mottle virus (RoMoV) was excluded from the latest species list of the ICTV after the discovery of imperata yellow mottle virus (IYMV), which resembles RoMoV in host range and geographic origin. Here, sequence analysis of the complete genome of RoMoV suggested that it should be considered a distinct species within the genus Sobemovirus . It has the highest sequence identity (55 %) to ryegrass mottle virus (RGMoV), whereas its sequence identity to IYMV is lower (44 %). In a phylogenetic tree, RoMoV clusters together with RGMoV and artemisia virus A (ArtVA), a dicot-infecting sobemovirus.
Merike Sõmera - One of the best experts on this subject based on the ideXlab platform.
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Rottboellia yellow mottle virus is a distinct species within the genus Sobemovirus
Archives of Virology, 2015Co-Authors: Merike Sõmera, Erkki TruveAbstract:Once considered a tentative member of the genus Sobemovirus , Rottboellia yellow mottle virus (RoMoV) was excluded from the latest species list of the ICTV after the discovery of imperata yellow mottle virus (IYMV), which resembles RoMoV in host range and geographic origin. Here, sequence analysis of the complete genome of RoMoV suggested that it should be considered a distinct species within the genus Sobemovirus . It has the highest sequence identity (55 %) to ryegrass mottle virus (RGMoV), whereas its sequence identity to IYMV is lower (44 %). In a phylogenetic tree, RoMoV clusters together with RGMoV and artemisia virus A (ArtVA), a dicot-infecting sobemovirus.
O. P. Sehgal - One of the best experts on this subject based on the ideXlab platform.
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Rottboellia yellow mottle virus, a new sobemovirus affecting Rottboellia cochinchinensis (Itch grass) in Nigeria.
Annals of Applied Biology, 1992Co-Authors: G. Thottappilly, J. W. M. Van Lent, H. W. Rossel, O. P. SehgalAbstract:Summary A hitherto undescribed virus, termed Rottboellia yellow mottle virus (RoYMV), affecting Rottboellia cochinchinensis (syn. R. exaltata, itch grass) at Ibadan, Nigeria, was investigated. RoYMV virions are isometric, c. 29 nm in diameter, and sediment homogeneously at 114s. In isopycnic CsCl gradients, RoYMV virions band sharply at a buoyant density of 1.379 g cm-3, but in Cs2SO4 gradients, virions band at two zones, at the densities of 1.300 g cm-3 and 1.325 g cm-3. Treatment with EDTA at pH 8.0 reduced the sedimentation value of RoYMV to c. 87s and rendered it susceptible to proteinase-K, SDS and NaCl. The apparent molecular weight of RoYMV coat protein was c. 27 000. Virions encapsidate a single-stranded RNA of mol. wt 1.4 × 106 Da. Besides R. cochinchinensis, RoYMV was mechanically transmissible only to maize (Zea mays). No reaction occurred when RoYMV was tested against antisera to 44 isometric plant viruses (belonging to 12 groups), including several that affect Gramineae. RoYMV exhibits striking similarities with other viruses belonging to the sobemovirus group, and it is tentatively designated as a new member of the sobemovirus group.
Jonghwan Kim - One of the best experts on this subject based on the ideXlab platform.
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Three newly recorded plants of South Korea: Muhlenbergia ramosa
2016Co-Authors: Dichanthelium Acuminatum Gould, Yang-hoon Cho, Jonghwan Kim, Dichanthelium AcuminatumAbstract:Abstract: Three new Poaceae species are reported in South Korea. Muhlenbergia ramosa was found in Boryeong-si, Iksan-si, Jangsu-gun and Gwangju. Dichanthelium acuminatum and Rottboellia cochinchinensis were found in Jeonju-si, Jeollabuk-do and Seogwipo-si, Jeju-do which were thought to be alien species. Genus Dichanthelium and Rottboellia are newly reported in South Korea. Muhlenbergia ramosa was thought to be native to Korea
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three newly recorded plants of south korea muhlenbergia ramosa hack ex matsum makino dichanthelium acuminatum sw gould c a clark and Rottboellia cochinchinensis lour clayton
Journal of Asia-Pacific Biodiversity, 2013Co-Authors: Su-young Jung, Soo Hyun Park, Hee-suk Hwang, Kae-sun Chang, Gi-heum Nam, Yang-hoon Cho, Jonghwan KimAbstract:Three new Poaceae species are reported in South Korea. Muhlenbergia ramosa was found in Boryeong-si, Iksan-si, Jangsu-gun and Gwangju. Dichanthelium acuminatum and Rottboellia cochinchinensis were found in Jeonju-si, Jeollabuk-do and Seogwipo-si, Jeju-do which were thought to be alien species. Genus Dichanthelium and Rottboellia are newly reported in South Korea. Muhlenbergia ramosa was thought to be native to Korea.
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Three newly recorded plants of South Korea: Muhlenbergia ramosa (Hack. ex Matsum.) Makino, Dichanthelium acuminatum (Sw.) Gould & C.A. Clark and Rottboellia cochinchinensis (Lour.) Clayton
Journal of Asia-Pacific Biodiversity, 2013Co-Authors: Su-young Jung, Soo Hyun Park, Hee-suk Hwang, Kae-sun Chang, Gi-heum Nam, Yang-hoon Cho, Jonghwan KimAbstract:Three new Poaceae species are reported in South Korea. Muhlenbergia ramosa was found in Boryeong-si, Iksan-si, Jangsu-gun and Gwangju. Dichanthelium acuminatum and Rottboellia cochinchinensis were found in Jeonju-si, Jeollabuk-do and Seogwipo-si, Jeju-do which were thought to be alien species. Genus Dichanthelium and Rottboellia are newly reported in South Korea. Muhlenbergia ramosa was thought to be native to Korea.
James L. Griffin - One of the best experts on this subject based on the ideXlab platform.
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Interference between Rottboellia cochinchinensis and Zea mays
Weed Science, 2000Co-Authors: Ronald E. Strahan, James L. Griffin, Daniel B. Reynolds, Donnie K. MillerAbstract:Abstract Field studies conducted over 2 yr in Louisiana determined critical periods of Rottboellia cochinchinensis interference in Zea mays. In a duration of interference study, R. cochinchinensis was allowed to compete with Z. mays for 0 (weed-free, season-long), 2, 4, 6, 8, 10, 12, or 14 (weedy, season-long) wk, after which plots were maintained weed-free for the rest of the growing season. Rottboellia cochinchinensis biomass at time of initial removal increased linearly as weeks of interference increased. For 2 wk of interference, R. cochinchinensis biomass was greater in 1993 than 1994, but for 4 wk or more of interference, biomass was greater the second year indicating environmental conditions were more conducive to R. cochinchinensis growth in 1994. Season-long R. cochinchinensis interference reduced Z. mays height by 18% compared with the weed-free check. For both years, R. cochinchinensis reduced yields 125 kg ha−1 for each week of interference. In weed-free maintenance studies, 0, 2, 4, 6, 8, 10,...
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Itchgrass (Rottboellia cochinchinensis) interference in soybean (Glycine max).
Weed Technology, 1994Co-Authors: Katherine R. Lejeune, James L. Griffin, Daniel B. Reynolds, Arnold M. SaxtonAbstract:Interference between itchgrass and soybean was evaluated over two years using area-of-influence procedures. Soybean seed weight within 20 cm of the weed was reduced 15 to 21%. In the first year, seed weight reduction of 9% was detected at a distance of 40 to 60 cm from the weed. Weight reductions were attributed to decreases in seed number of 12 to 22% within 40 cm of the weed compared with the 140 to 160 cm control area. Itchgrass interference increased soybean height within 40 cm of the weed, but soybean canopy width was generally unaffected. Soybean interference did not affect height of itchgrass plants, but did reduce weed stem numbers 89 to 94% when compared with weeds growing alone. With interference of 8 wk or less, both itchgrass green and dry weights were similar when weeds were growing alone or within the soybean row. Green and dry weights were reduced approximately 80% when itchgrass was in competition with soybean for 10 wk
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Itchgrass (Rottboellia cochinchinensis) Interference in Sugarcane (Saccharum sp.)
Weed Technology, 1991Co-Authors: Reed J. Lencse, James L. GriffinAbstract:Field studies were conducted in the northem and southern cane belt areas of Louisiana to determine the effect of itchgrass on sugarcane growth and yield. Itchgrass was allowed to interfere with sugarcane season-long, early-season from emergence in the spring until layby (last cultivation) in mid-June, and late-season from layby until harvest. Itchgrass germination occurred throughout the growing season. Populations of millable sugarcane stalks and yields of cane and sugar were similar for no interference, early-, and late-season interference. Season-long itchgrass interference reduced sugarcane stalk populations and cane and sugar yields an average of 34, 42, and 43%, respectively, compared with no interference. Nomenclature: Itchgrass, Routboellia cochinchinensis (Lour.) W. Clayton #3 ROOEX; sugarcane, Saccharum interspecific hybrids 'CP 70-321' and 'CP 76-331'. Additional index words: Weed competition, weed interference, ROOEX.
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Itchgrass (Rottboellia cochinchinensis) Interference in Sugarcane (Saccharumsp.)
Weed Technology, 1991Co-Authors: Reed J. Lencse, James L. GriffinAbstract:Field studies were conducted in the northern and southern cane belt areas of Louisiana to determine the effect of itchgrass on sugarcane growth and yield. Itchgrass was allowed to interfere with sugarcane season-long, early-season from emergence in the spring until layby (last cultivation) in mid-June, and late-season from layby until harvest. Itchgrass germination occurred throughout the growing season. Populations of millable sugarcane stalks and yields of cane and sugar were similar for no interference, early-, and late-season interference. Season-long itchgrass interference reduced sugarcane stalk populations and cane and sugar yields an average of 34, 42, and 43%, respectively, compared with no interference.
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Itchgrass (Rottboellia cochinchinensis) control options in soybean (Glycine max).
Weed Technology, 1991Co-Authors: James L. GriffinAbstract:In field studies rifluralin and pendimethalin at 1.7 kg ai ha-' applied PPI controlled itchgrass 87 and 78%, respectively, in late season when averaged over a 2-yr period. Clomazone at 1.1 kg ai ha-l applied PRE to the soil surface in one year controlled 80% of itchgrass compared with 51% when applied PPI. POST application of 0.15 kg ai ha-1 fluazifop-P, 0.21 kg ai ha7haloxyfop, 0.10 kg ai ha-l quizalofop, and 1.1 kg ai ha7diclofop controlled at least 90%. Itchgrass control was less effective with 0.43 kg ai ha7sethoxydim and 0.07 kg ai ha-1 clethodim POST and poor with 0.15 kg ai ha-1 imazaquin and 0.07 kg ai ha-' imazethapyr. Nomenclature: Clethodim, (E,E)-(?)-2-[l-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3hydroxy-2-cyclohexenl-one; clomazone, 2-[(2-chlorophenyl)methyl]4,4-dimethyl-3-isoxazolidinone; diclofop, (?)-2-[4-(2,4-dichlorophenoxy)phenoxy]propanoic acid; fluazifop-P, (R)-2-[4-[[5trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid; haloxyfop, 2[4[[3-chloro-5(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid; imazaquin, 2-[4,5-dihydro-4-methyl4-(1-methylethyl)-5-oxo-lH-inidazol-2-yl]-3-quinolinecarboxylic acid; imazethapyr, (?)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-lH-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid; pendimethalin, N-(l-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine; quizalofop, (?)-2-[4-[(6-chloro2-quinoxalinyl)oxy]phenoxy]propanoic acid; sethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2(ethylthio)propyl]-3-hydroxy-2-cyclohexen1-one; trifluralin, 2,6-dinitro-N, N-dipropyl-4(trifluoromethyl)benzenamine; itchgrass, Rottboellia cochinchinensis (Lour.) W. Clayton #3 ROOEX; soybean, Glycine max (L.) Merr. Additional index words: Clethodim, clomazone, diclofop, fluazifop-P, haloxyfop, imazaquin, imazethapyr, pendimethalin, quizalofop, sethoxydim, trifluralin, ROOEX.
