Occurrence of temperature-independent necrotic strains ofBean common mosaic virus(BCMV) on snap beans (Phaseolus vulgaris) in Bulgaria

2015 ◽  
pp. 173-180 ◽  
Author(s):  
G. Pasev ◽  
D. Kostova
Keyword(s):  
Phaseolus Vulgaris ◽  
Mosaic Virus ◽  
Snap Beans

scholarly journals First Report of Sida golden mosaic virus Infecting Snap Bean (Phaseolus vulgaris) in Florida

Plant Disease ◽  
2010 ◽  
Vol 94 (4) ◽  
pp. 487-487 ◽  
Author(s):  
T. C. Durham ◽  
C. Baker ◽  
L. Jones ◽  
L. Unruh Snyder
Keyword(s):  
Phaseolus Vulgaris ◽  
Mosaic Virus ◽  
Complete Sequence ◽  
Economic Implications ◽  
Snap Bean ◽  
First Report ◽  
Snap Beans ◽  
Alachua County ◽  
Pcr Products ◽  
Total Dna

In October 2006, snap bean (Phaseolus vulgaris ‘Titan’) plants in an Alachua County field exhibited symptoms of foliar mottling, puckering, and curl. Symptomatic plants were distributed along field margins infested with whiteflies (100% incidence). Six collected leaf specimens all tested positive for nuclear inclusion bodies typical of begomoviruses with the methodology outlined by Christie et al. (1). To confirm the putative begomovirus association, total DNA was extracted with Qiagen's DNeasy Plant Mini Kit (Qiagen, Valencia, CA). The degenerate Begomovirus primers 5′-GCCCACATYGTCTTYCCNGT-3′ and 5′-GGCTTYCTRTACATRGG-3′ were used to amplify a 1.1-kb fragment of DNA-A (2). Primers SiGMVf 5′-CCTAAGCGCGATTTGCCAT-3′ and SiGMVr 5′-TACAGGGAGCTAAATCCAGCT-3′ were designed to amplify the remaining 1.5 kb of the DNA-A component. The sequence of both PCR products was compiled to generate a complete sequence of an A component (2,633 nt). BLAST analysis of this sequence (GenBank Accession No. GQ357649) isolated from snap bean indicated 95% nucleotide identity to Sida golden mosaic virus (SiGMV) (GenBank Accession No. AF049336) isolated from Sida santaremensis from Florida. To our knowledge, this is the first report of SiGMV in Florida snap beans. Further study is warranted to examine the etiological and economic implications of this finding. References: (1) R. G. Christie et al. Phytopathology 76:124, 1986. (2) M. R. Rojas et al. Plant Dis. 77:340, 1993.

scholarly journals Scheduling of irrigation in snap bean (Phaseolus vulgaris var. nanus) using canopy temperature

2005 ◽  
Vol 11 (1) ◽  
Author(s):  
L. Helyes ◽  
Z. Pék ◽  
Gy. Varga ◽  
J. Dimény
Keyword(s):  
Phaseolus Vulgaris ◽  
Water Supply ◽  
Surface Temperature ◽  
Yield Loss ◽  
Canopy Temperature ◽  
Water Turnover ◽  
Snap Bean ◽  
Snap Beans ◽  
Yield Production ◽  
Spring Sowing

The present paper evaluates the result of irrigation experiments carried out on snap beans sown in spring and summer and grown with and without irrigation. The experiments were run over the course of 12 years. In the average of 12 years, the yield was 2.8t ha-I for spring sown and 1.9 t ha-I in summer-sown plants without irrigation. The lowest level of profitable production, the 5.5t ha-I was reached twice in the case of spring sowing and only once in the case of summer sowing. Profitable yield production can be ensured only with regular irrigation and thus the yield may be increased by 4-5 times. In four of the twelve years we determined the canopy surface temperature of snap bean stands with and without irrigation. A Raynger II infrared remote thermometer determined the canopy surface temperature every day at 13.00 hours. The canopy temperature can well characterize the water supply of plant stands. This parameter may be used for describing the degree of drought and the water turnover of plant stands with different water supply. The positive values of foliage-air temperature differences (SDD) numerically express the degree of drought and the water supply of the crops. The results indicated that a 1 °C higher SDD value may cause 90-130 kg/ha yield loss.

scholarly journals Seleção de progênies de feijoeiro F4 resistentes ao Bean golden mosaic virus

2005 ◽  
Vol 30 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Fernando C. Juliatti ◽  
Simone A. Moraes ◽  
Heyder D. Silva ◽  
Márcio H. C. Borges
Keyword(s):  
Phaseolus Vulgaris ◽  
Mosaic Virus ◽  
Bean Golden Mosaic Virus

O objetivo deste trabalho foi identificar progênies de feijoeiro (Phaseolus vulgaris) na geração F4 provenientes do cruzamento entre cultivares resistentes ao Bean golden mosaic virus (BGMV). Os parentais foram as cultivares Carioca-MG (suscetível) e IAPAR-57, IAPAR-72 e IAPAR-65 (resistentes). A população de 480 progênies foi obtida pelo modelo dialélico completo. Estas foram semeadas em campo sob inoculação natural e estudada ao nível de plantas individuais para cálculo do índice de doença de BGMV (I.D.) Em relação ao I.D. médio, as progênies foram mais resistentes do que seus parentais (2,62 e 2,87), respectivamente. O processo de seleção foi realizado pelo I.D. (sigmag² = 0,2729 e h a² = 0,3953), onde foram obtidas famílias com grãos do tipo carioca e com I.D. inferior aos parentais resistentes. Segundo o GS% estimado, não serão necessárias muitas progênies ou famílias para se obter progresso com seleção para BGMV. O genótipo IAPAR-72 foi o parental superior na obtenção de progênies de maior resistência (menores I.D.). Possivelmente o mecanismo de resistência é do tipo resistência parcial.

scholarly journals Physiological Interactions of Phaseolus vulgaris L. with Telfairia Mosaic Virus

2021 ◽  
Vol 5 (6) ◽  
pp. 102-108
Author(s):  
AAJ Mofunanya ◽  
EA Effa ◽  
BA Ngele ◽  
FA Akomaye ◽  
AO Damian
Keyword(s):  
Phaseolus Vulgaris ◽  
Mosaic Virus ◽  
Phaseolus Vulgaris L

Ultrastructure of tobacco mosaic virus lesions and surrounding tissue in Phaseolus vulgaris var. Pinto

1971 ◽  
Vol 49 (3) ◽  
pp. 417-421 ◽  
Author(s):  
D. F. Spencer ◽  
W. C. Kimmins
Keyword(s):  
Cell Wall ◽  
Electron Microscope ◽  
Phaseolus Vulgaris ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Healthy Tissue ◽  
Surrounding Tissue ◽  
Infected Area ◽  
Membrane Bound

Leaves of Phaseolus vulgaris var. Pinto were inoculated with the U1 strain of tobacco mosaic virus TMV (U1) and fully expanded lesions and adjacent healthy tissue were examined in the electron microscope. Emphasis was placed on the band of healthy cells (resistant zone) surrounding the lesion, with the object of detecting the first changes in ultrastructure as healthy tissue graded into the infected area. Cells in the resistant zone were characterized by the appearance of membrane-bound vesicular bodies (paramural bodies) between the plasmalemma and cell wall. Where paramural bodies accumulated, the plasmalemma was withdrawn and intercellular cytoplasmic connections through the plasmodesmata were severed. These changes were found most frequently for a distance of about three cell diameters beyond cells visibly infected at the lesion periphery. It is suggested that these changes in ultrastructure are related to the events of localization. Spread of the virus may be inhibited because of a lack of cytoplasmic connections between cells surrounding the virus-induced lesion.

Snap Bean (Phaseolus vulgaris) and Common Lambsquarters (Chenopodium album) Response to Acifluorfen

1987 ◽  
Vol 1 (1) ◽  
pp. 18-21 ◽  
Author(s):  
Henry P. Wilson ◽  
Thomas E. Hines
Keyword(s):  
Phaseolus Vulgaris ◽  
Chenopodium Album ◽  
Field Studies ◽  
Early Application ◽  
Snap Bean ◽  
Application Timing ◽  
Common Lambsquarters ◽  
Leaf Stage ◽  
Nitrobenzoic Acid ◽  
Snap Beans

Field studies were conducted for 3 yr to determine the foliar activity of acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} for control of common lambsquarters (Chenopodium albumL. # CHEAL) in snap beans (Phaseolus vulgarisL. ‘Provider’ in 1983 and 1985 and ‘Green Crop’ in 1984). Control of 1 to 7 cm tall common lambsquarters varied between 75 and 100% with 0.28 kg ai/ha acifluorfen and frequently increased linearly with increases in acifluorfen rates to 0.84 kg/ha. Snap bean injury occurred each year and in 1985 was influenced by acifluorfen rate, stage of snap bean growth, and surfactant. Snap bean yields in 1983 were reduced linearly with increases in acifluorfen rates and in 1985 were reduced more from applications at the 1- to 2-trifoliolate leaf stage than at the 4- to 8-trifoliolate leaf stage. In the greenhouse, reductions in snap bean height from acifluorfen were related to application timing, surfactant and cultivar. Fresh weight reduction of snap beans was highest with the cultivar ‘Green Crop’ but was increased to both cultivars by early application timing and the addition of surfactant to the spray mix.

scholarly journals Recessive Resistance to Bean common mosaic virus Conferred by the bc-1 and bc-2 Genes in Common Bean (Phaseolus vulgaris) Affects Long-Distance Movement of the Virus

2018 ◽  
Vol 108 (8) ◽  
pp. 1011-1018 ◽  
Author(s):  
Xue Feng ◽  
Gardenia E. Orellana ◽  
James R. Myers ◽  
Alexander V. Karasev
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Mosaic Virus ◽  
Bean Common Mosaic Virus ◽  
Translation Initiation Factor ◽  
Initiation Factor ◽  
Recessive Resistance ◽  
Long Distance ◽  
Systemic Spread ◽  
Long Distance Movement

Recessive resistance to Bean common mosaic virus (BCMV) in common bean (Phaseolus vulgaris) is governed by four genes that include one strain-nonspecific helper gene bc-u, and three strain-specific genes bc-1, bc-2, and bc-3. The bc-3 gene was identified as an eIF4E translation initiation factor gene mediating resistance through disruption of the interaction between this protein and the VPg protein of the virus. The mode of action of bc-1 and bc-2 in expression of BCMV resistance is unknown, although bc-1 gene was found to affect systemic spread of a related potyvirus, Bean common mosaic necrosis virus. To investigate the possible role of both bc-1 and bc-2 genes in replication, cell-to-cell, and long-distance movement of BCMV in P. vulgaris, we tested virus spread of eight BCMV isolates representing pathogroups I, IV, VI, VII, and VIII in a set of bean differentials expressing different combinations of six resistance alleles including bc-u, bc-1, bc-12, bc-2, bc-22, and bc-3. All studied BCMV isolates were able to replicate and spread in inoculated leaves of bean cultivars harboring bc-u, bc-1, bc-12, bc-2, and bc-22 alleles and their combinations, while no BCMV replication was found in inoculated leaves of cultivar IVT7214 carrying the bc-u, bc-2, and bc-3 genes, except for isolate 1755a, which was capable of overcoming the resistance conferred by bc-2 and bc-3. In contrast, the systemic spread of all BCMV isolates from pathogroups I, IV, VI, VII, and VIII was impaired in common bean cultivars carrying bc-1, bc-12, bc-2, and bc-22 alleles. The data suggest that bc-1 and bc-2 recessive resistance genes have no effect on the replication and cell-to-cell movement of BCMV, but affect systemic spread of BCMV in common bean. The BCMV resistance conferred by bc-1 and bc-2 and affecting systemic spread was found only partially effective when these two genes were expressed singly. The efficiency of the restriction of the systemic spread of the virus was greatly enhanced when the alleles of bc-1 and bc-2 genes were combined together.

scholarly journals Use of interracial hybridization in breeding the race Durango common bean

1993 ◽  
Vol 73 (3) ◽  
pp. 785-793 ◽  
Author(s):  
Shree P. Singh ◽  
Albeiro Molina ◽  
Carlos A. Urrea ◽  
J. Ariel Gutiérrez
Keyword(s):  
Disease Resistance ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Mosaic Virus ◽  
Seed Yield ◽  
Block Design ◽  
Bean Common Mosaic Virus ◽  
Mass Selection ◽  
Plant Seed ◽  
High Level

Recently, interracial hybridization was used successfully in breeding common bean (Phaseolus vulgaris L.), but its use has not been adequately documented. Approximately 125 lines with medium-sized seed were selected in the first cycle, mostly from race Durango × race Mesoamerica (both from the Middle American domestication center) single- and multiple-cross populations, for disease resistance and race Durango characteristics. Fifteen of these improved lines, three race Durango control cultivars, and one control cultivar each from races Jalisco and Mesoamerica were evaluated for 3 yr (1989–1991) at three locations in Colombia. A randomized complete block design with three replications was used. Lines were developed using visual mass selection for seed yield and/or resistance to diseases in F2 and F3, followed by single plant harvests in F4 or F5 and seed increases in F6 or F7. Lines resistant to bean common mosaic virus and possessing other desirable traits were yield-tested in F7 or F8. All but two lines outyielded Alteño and Flor de Mayo, the highest yielding control cultivars from races Durango and Jalisco, respectively. Two lines also outyielded Carioca, the race Mesoamerica control cultivar. Improved lines tended to possess higher yield per day. All lines were resistant to bean common mosaic virus and most lines also carried a high level of resistance to anthracnose. Plant, seed, and maturity characteristics of most improved lines were similar to those of race Durango control cultivars. These results support the use of interracial hybridization in improving race Durango common bean. Key words: Common bean, Phaseolus vulgaris, race Durango, interracial populations, seed yield, disease resistance

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