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  • Chloroplast replication  (2)
  • Glomus intraradices  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Cell size and chloroplast size in relation to chloroplast replication in light-grown wheat leaves (1985)
    Springer
    Planta 165 (1985), S. 120-125 
    Details
    ISSN: 1432-2048
    Keywords: Cell size ; Chloroplast replication ; Mesophyll (development) ; Polyploidy ; Triticum (chloroplast replication)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract As part of an investigation into the control of chloroplast replication the number and size of chloroplasts in mesophyll cells was examined in relation to the size of the cells. In first leaves of Triticum aestivum L. and T. monococcum L. the number of chloroplasts in fully expanded mesophyll cells is positively correlated with the plan area of the cells. The linear relationship between chloroplast number per cell and cell plan area is also consistent over a fivefold range of cell size in isogenic diploid and tetraploid T. monococcum. In T. aestivum the chloroplast number per unit cell plan area varies among cells in relation to the size of the chloroplasts. Those cells containing chloroplasts with a relatively small face area have a correspondingly higher density of chloroplasts, and consequently, the total chloroplast area per unit cell plan area is very similar in all the cells. The results indicate that the proportion of the cell surface area covered by chloroplasts is precisely regulated, and that this is achieved during cell development by growth and replication of the chloroplasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392220
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nuclear DNA content and the control of chloroplast replication in wheat leaves (1983)
    Springer
    Planta 157 (1983), S. 376-380 
    Details
    ISSN: 1432-2048
    Keywords: Chloroplast replication ; Endoreduplication (nucleus) ; Mesophyll (chloroplast number) ; Nuclear DNA ; Triticum (chloroplast)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract During development of the first leaf of breadwheat (Triticum aestivum L.) the number of chloroplasts per mesophyll cell increases between three- and four-fold. To establish if chloroplast replication is accompanied by endoreduplication, the nuclear DNA content of the cells was determined by chemical assay of isolated nuclei from mesophyll protoplasts and by microdensitometry of nuclei in mesophyll tissue. The DNA content of the nuclei was constant (27 to 32 pg) at each phase of chloroplast replication. Approximately 93% of the cells had a nuclear DNA content close to the 2C value of 32 pg. It is concluded that chloroplast replication is not dependent on nuclear endoreduplication in seedling leaves of wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397411
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of species of VA-mycorrhizal fungi on growth and mineral uptake of sorghum at different temperatures (1990)
    Springer
    Plant and soil 121 (1990), S. 165-170 
    Details
    ISSN: 1573-5036
    Keywords: Glomus fasciculatum ; Glomus intraradices ; Glomus macrocarpum ; mineral nutrition ; soil temperature ; Sorghum bicolor ; uptake of P, K, S, Fe, and Zn ; VAMF ; vesicular-arbuscular mycorrhizal fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Sorghum [Sorghum bicolor (L.) Moench] plants were grown in growth chambers at 20, 25 and 30°C in a low P Typic Argiudoll (3.65 µg P g−1 soil, pH 8.3) inoculated with Glomus fasciculatum, Glomus intraradices, and Glomus macrocarpum to determine effects of vesicular-arbuscular mycorrhizal fungi (VAMF) species on plant growth and mineral nutrient uptake. Sorghum root colonization by VAMF and plant responses to Glomus species were temperature dependent. G. macrocarpum colonized sorghum roots best and enhanced plant growth and mineral uptake considerably more than the other VAMF species, especially at 30°C. G. fasciculatum enhanced shoot growth at 20 and 25°C, and mineral uptake only at 20°C. G. intraradices depressed shoot growth and mineral uptake at 30°C. G. macrocarpum enhanced shoot P, K, and Zn at all temperatures, and Fe at 25 and 30°C above that which could be accounted for by increased biomass. Sorghum plant growth responses to colonization by VAMF species may need to be evaluated at different temperatures to optimize beneficial effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00012308
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of species of VA-mycorrhizal fungi on growth and mineral uptake of sorghum at different temperatures (1990)
    Springer
    Plant and soil 122 (1990), S. 165-170 
    Details
    ISSN: 1573-5036
    Keywords: Glomus fasciculatum ; Glomus intraradices ; Glomus macrocarpum ; mineral nutrition ; soil temperature ; Sorghum bicolor ; uptake of P, K, S, Fe, and Zn ; VAMF ; vesicular-arbuscular mycorrhizal fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Sorghum [Sorghum bicolor (L.) Moench] plants were grown in growth chambers at 20, 25 and 30°C in a low P Typic Argiudoll (3.65 µg P g-1 soil, pH 8.3) inoculated withGlomus fasciculatum, Glomus intraradices, andGlomus macrocarpum to determine effects of vesicular-arbuscular mycorrhizal fungi (VAMF) species on plant growth and mineral nutrient uptake. Sorghum root colonization by VAMF and plant responses toGlomus species were temperature dependent.G. macrocarpum colonized sorghum roots best and enhanced plant growth and mineral uptake considerably more than the other VAMF species, especially at 30°C.G. fasciculatum enhanced shoot growth at 20 and 25°C, and mineral uptake only at 20°C.G. intraradices depressed shoot growth and mineral uptake at 30°C.G. macrocarpum enhanced shoot P, K, and Zn at all temperatures, and Fe at 25 and 30°C above that which could be accounted for by increased biomass. Sorghum plant growth responses to colonization by VAMF species may need to be evaluated at different temperatures to optimize beneficial effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02444229
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    Paper (German National Licenses)
    Fulltext
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