a study was carried out to determine whether naturally-occurring weeds and other cultivated plants in tomato growing regions could act as symptomless reservoirs of infection to fusarium oxysporum f. sp. lycopersici. a numher of f. oxysporum isolates from weeds and oubergines were used in this investigation. a susceptible tomato cultivar was used for comparison. the plants were artificially ...

Meloidogyne incognita, Hoplolaintus galeatus, and North Carolina and Georgia populations of Belonolaimus longicaudatus were introduced singly and in various combinations with Fusarium oxysporum f. sp. vasinfectum on wilt-susceptible 'Rowden' cotton. Of all the nematodes, the combination of the N. C. population of B. longicaudatus with Fusarium promoted greatest wilt development. H. galeatus had...

fusarium wilt caused by fusarium oxysporum f.sp. lycopersici is one of the major obstacles to the production of tomato which causes huge losses in tomato products worldwide. in order to increase the tolerance to this disease, a triple structure containing pr1, chitinase and glucanase genes controlled by 35s promoter was transferred to tomato. eight days after planting on pre-culture medium, exp...

abstract tomato spotted wilt virus (tswv) was detected in tomato leaf and fruit samples collected from viiramin reyion in tehran province using indicator test plants including petunia hybrida, nicatiana glutinosa, n. tabacum cv. snmsun nn, n. clevelandit and n. benthamiana and seroloyical tests. small browinsh local necrotic lesions appeared on p. hybrida leaves 2-4 days post-inoculation. syste...

Ability of biocontrol agent Streptomyces griseus to control the F. oxysporum f. sp. lycopersici. (FOL) induced fusarium wilt disease in tomato was studied. Talc-based formulation of Streptomyces griseus either single or with or without chitin were developed and tested under greenhouse conditions. Self life of S. griseus in talk based formulation showed stable up to 105 day with 122 x 10 , 118 x...

This is the first study reporting the evaluation of transgenic lines of tomato harboring rice chitinase (RCG3) gene for resistance to two important fungal pathogens Fusarium oxysporum f. sp. lycopersici (Fol) causing fusarium wilt and Alternaria solani causing early blight (EB). In this study, three transgenic lines TL1, TL2 and TL3 of tomato Solanum lycopersicum Mill. cv. Riogrande genetically...

A new myosin motor-like chitin synthase gene, chsVb, has been identified in the vascular wilt fungus Fusarium oxysporum f. sp. lycopersici. Phylogenetic analysis of the deduced amino acid sequence of the chsVb chitin synthase 2 domain (CS2) revealed that ChsVb belongs to class VII chitin synthases. The ChsVb myosin motor-like domain (MMD) is shorter than the MMD of class V chitin synthases and ...

XSP10 is an abundant 10 kDa protein found in the xylem sap of tomato. The protein displays structural similarity to plant lipid transfer proteins (LTPs). LTPs are involved in various physiological processes, including disease resistance, and some are able to bind and transfer diverse lipid molecules. XSP10 abundance in xylem sap declines upon infection with Fusarium oxysporum f. sp. lycopersici...

Wilt-susceptible cultivar 'Rowden' cotton was inoculated wilh Meloidogyne incognita (N), Trichoderma harzianum (T), and Fusarium oxysporum f. sp. vasinfectum (F) alone and in all combinations in various time sequences. Plants inoculated with F alone or in combination with T did not develop wilt, Simultaneous inoculation of 7-day-old seedlings with all three organisms (NTF) produced earliest wil...

The tomato crop is exposed to serious losses due infection with several diseases and pests, which threaten production in Egypt worldwide. Therefore, selecting the germplasm resistant a specific pathogen by molecular markers closely linked resistance loci desirable goal of this study. In work, seven co-dominant targeting six genes (I-1, Ve, Ph3, Cf-9/Cf-4, Rx4, Pto) for main [ fusarium wilt (Fus...