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  • 1
    ISSN: 1432-072X
    Keywords: Bacteria ; Antagonists ; Verticillium dahliae ; Potato cultivars ; Resistance ; Populations ; Quantitative ; Qualitative-Roots ; Soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Six cultivars and breeding lines of potato (Solanum tuberosum) differing in susceptibility to verticillium wilt caused by Verticillium dahliae were studied with respect to quantitative and qualitative differences in the bacterial flora of their soil and rhizosphere-rhizoplane. Although, no association was observed between the types of bacteria that inhabited the soil or roots of wilt resistant and susceptible cultivars, quantitative differences were evident. These differences provide the first direct evidence that potato genotypes can influence bacterial populations. Bacterial populations were 9–25-fold higher on roots than in the adjacent soil. As the plants aged, the total number of rootcolonizing bacteria increased between 15 and 245%. Pseudomonas spp. were the most abundant microbes in the soil and rhizosphere-rhizoplane. The bacteria antagonistic to V. dahliae in vitro were identified as members of the genera Bacillus, Pseudomonas, Flavobacterium, and Gluconobacter. A statistically significant trend was evident toward the association of antagonistic bacteria with the more resistant potato cultivars.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of applied physiology 50 (1983), S. 319-329 
    ISSN: 1439-6327
    Keywords: Maximum aerobic capacity ; Dietary-induced thermogenesis ; Body fat ; Resting metabolic rate ; Luxuskonsumption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Resting metabolic rate (RMR), dietary thermogenesis (DIT), aerobic capacity ( $$\dot V$$ O2 max), and percent body fat were measured in a group of sixteen women and ten men. DIT was significantly positively correlated with aerobic capacity (r=0.658). Percent body fat was significantly negatively correlated with $$\dot V$$ O2 max (r=−0.727). RMR was independent of $$\dot V$$ O2 max, or body fatness, but women had a significantly higher average RMR than men. Three men and three women participated in an endurance training program which significantly increased $$\dot V$$ O2 max. DIT was increased in proportion to the increase in aerobic capacity (r s=0.924), RMR was unchanged, and body fat decreased in males but not females. The controversy surrounding “luxuskonsumption” may stem in part from not taking into account individual differences in aerobic capacity when measuring DIT.
    Type of Medium: Electronic Resource
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