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the tomato mosaic virus 30 kda movement protein interacts differentially with the resistance genes tm-2 and tm-2(2).in tomato plants ( lycopersicon esculentum mill.), the genes tm-2 and tm-2(2) confer resistance to tomato mosaic virus (tomv). sequence analysis of tomv strains able to break the tm-2 or tm-2(2) resistance revealed distinct amino acid exchanges in the viral 30 kda protein, suggesting that the movement protein is recognized by both resistance genes to induce the plant defense reaction. to analyze the interactions between the tomv movement protein and the tm-2 and tm-2(2) genes in detail, we gener ...200415290376
reaction of lycopersicon species and varieties to potato virus y (pvy(ntn)) and tomato mosaic virus (tomv).virus susceptibility of 33 lycopersicon species and varieties to ntn strain of potato virus y (pvy(ntn)) and tomato mosaic virus (tomv) were studied. inoculated plants were tested for infection symptomatologically, serologically and by back inoculation as well. new incompatible and compatible host-virus relations have been determined. all tested plants were susceptible to tomv. however, lycopersicon esculentum mill. convar. parviboccatum lehm. var. cerasiforme (dun.) alef. s.l., l. peruvianum (l ...200315151291
cloning and characterization of the durable tomato mosaic virus resistance gene tm-2(2) from lycopersicon esculentum.in tomato, infections by tomato mosaic virus are controlled by durable tm-2(2) resistance. in order to gain insight into the processes underlying disease resistance and its durability, we cloned and analysed the tm-2(2) resistance gene and the susceptible allele, tm-2. the tm-2(20 gene was isolated by transposon tagging using a screen in which plants with a destroyed tm-2(2) gene survive. the tm-2(2) locus consists of a single gene that encodes an 861 amino acid polypeptide, which belongs to the ...200314558663
an inhibitory interaction between viral and cellular proteins underlies the resistance of tomato to nonadapted tobamoviruses.any individual virus can infect only a limited range of hosts, and most plant species are "nonhosts" to a given virus; i.e., all members of the species are insusceptible to the virus. in nonhost plants, the factors that control virus resistance are not genetically tractable, and how the host range of a virus is determined remains poorly understood. tomato (solanum lycopersicum) is a nonhost species for tobacco mild green mosaic virus (tmgmv) and pepper mild mottle virus (pmmov), members of the g ...200919423673
responses of helicoverpa armigera to tomato plants previously infected by tomv or damaged by h. armigera.we report the comparative inducing effects of a phytopathogen and a herbivorous arthropod on the performance of an herbivore. tomato, lycopersicon esculentum mill., was used as the test plant, and tomato mosaic virus (tomv) and corn earworm, helicoverpa armigera hübner, were used as the phytopathogen and herbivore, respectively. there were decreases in the efficiency of conversion of ingested food and efficiency of conversion of digested food when h. armigera was reared on tomato plants that had ...200818286340
spectral quality affects disease development of three pathogens on hydroponically grown plants.plants were grown under light-emitting diode (led) arrays with various spectra to determine the effects of light quality on the development of diseases caused by tomato mosaic virus (tomv) on pepper (capsicum annuum l.), powdery mildew [sphaerotheca fuliginea (schlectend:fr.) pollaci] on cucumber (cucumis sativus l.), and bacterial wilt (pseudomonas solanacearum smith) on tomato (lycopersicon esculentum mill.). one led (660) array supplied 99% red light at 660 nm (25 nm bandwidth at half-peak he ...199711540250
identification of rapd markers linked to the tm-2 locus in tomato.tm-2 and tm-2a are genes conferring resistance to tomato mosaic virus in lycopersicon esculentum. they are allelic and originated from different lines of l. peruvianum, a wild relative of tomato. in this study, random amplified polymorphic dna (rapd) markers linked to these genes were screened in nearly isogenic lines (nils). to detect rapds differentiating nils, 220 different 10-base oligonucleotide primers were examined by the polymerase chain reaction (pcr), and 43 of them generated 53 consis ...199524173917
metabolic fingerprinting of tomato mosaic virus infected solanum lycopersicum.(1)h nuclear magnetic resonance (nmr)-based metabolomics has been applied to study the compatible interaction between tomato plants and tomato mosaic virus (tomv). a detailed time course of metabolic fingerprinting of tomv-inoculated and non-inoculated systemically infected tomato leaves has provided a fundamental understanding of the metabolic state of the plant not only in response to tomv infection, but also under various physiological conditions. by this analytical platform a total of 32 met ...201222795749
coevolution and hierarchical interactions of tomato mosaic virus and the resistance gene tm-1.during antagonistic coevolution between viruses and their hosts, viruses have a major advantage by evolving more rapidly. nevertheless, viruses and their hosts coexist and have coevolved, although the processes remain largely unknown. we previously identified tm-1 that confers resistance to tomato mosaic virus (tomv), and revealed that it encodes a protein that binds tomv replication proteins and inhibits rna replication. tm-1 was introgressed from a wild tomato species solanum habrochaites into ...201223093939
multiplex rt-pcr detection of cucumber mosaic virus subgroups and tobamoviruses infecting tomato using 18s rrna as an internal control.a multiplex reverse-transcription polymerase chain reaction (rt-pcr) protocol was developed for simultaneous detection and discrimination of subgroups of cucumber mosaic virus (cmv), including its satellite rna, tomato mosaic virus (tomv) and tobacco mosaic virus (tmv), using 18s rrna as an internal control. species- and subgroups-specific primers designed to differentiate cmv subgroups i and ii, tomv and tmv, were assessed using the cdna clones of viral genomes, cmv satellite rna and 18s rrna g ...201121531735
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