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  • 1
    Electronic Resource
    Electronic Resource
    Mercurialis ambigua and Solanum luteum: Two Newly Discovered Natural Hosts of Tomato Yellow Leaf Curl Geminiviruses (2000)
    Springer
    European journal of plant pathology 106 (2000), S. 391-394 
    Details
    ISSN: 1573-8469
    Keywords: Bemisia tabaci ; Datura stramonium ; epidemiology ; Lycopersicon esculentum ; Solanum nigrum ; TYLCV
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The yellow leaf curl disease of tomato is caused by a complex of virus species, two of which, tomato yellow leaf curl virus (TYLCV)-Sar and TYLCV-Is, are involved in epidemics of southern Spain. Plants of Mercurialis ambigua and Solanum luteum showing abnormal upward leaf curling and leaf distortion collected in the vicinity of tomato crops were found to be naturally infected with TYLCV-Is and TYLCV-Sar, respectively. These weed species, as well as Datura stramonium and S. nigrum, which had also been found to be naturally infected by TYLCVs in the same region in previous studies, were tested for susceptibility to TYLCV-Sar or TYLCV-Is by Agrobacterium tumefaciens-mediated and by Bemisia tabaci inoculation. Results indicated that both TYLCV-Sar and TYLCV-Is were able to infect D. stramonium and M. ambigua, whereas only TYLCV-Sar infected S. nigrum and S. luteum. Implications for the epidemiology of TYLCV are discussed. This is the first report of M.ambigua and S. luteum as hosts of TYLCV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008758622582
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  • 2
    Electronic Resource
    Electronic Resource
    Water Stress Induced Changes in Anatomy of Tomato Leaf Epidermes (2000)
    Springer
    Biologia plantarum 43 (2000), S. 275-277 
    Details
    ISSN: 1573-8264
    Keywords: epidermal cell length and width ; Lycopersicon esculentum ; stomata density and length ; trichome density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Anatomical changes of leaf epidermes of tomato plants (Lycopersicon esculentum Mill. cv. INCA 9) submitted to water stress in the preflowering stage were studied. 20 d after germination, plants were subjected to three treatments: 1) 100 % of evapotranspired water was applied every day, 2) from 100 up to 10 % of evapotranspired water was applied every day, and 3) water supply was completely suppressed. Trichome density was similar in apical, middle and basal zones, and adaxial and abaxial leaf surfaces. Stomatal density and length, and epidermal cell length and width had similar values on the same leaf surface, but the values were higher on the abaxial than on the adaxial leaf surface. The water deficit had little effect on number of trichomes, length and width of epidermal cells and length of stomata, and decreased the stomatal density especially on adaxial surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002716629802
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    Paper (German National Licenses)
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