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  • 1
    Electronic Resource
    Electronic Resource
    Changes in the volatile profile of peanuts and their relation to enzyme activity levels during maturation (1970)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 18 (1970), S. 353-356 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60169a011
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  • 2
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships among actinorhizal plants. The impact of molecular systematics and implications for the evolution of actinorhizal symbioses (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 99 (1997), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A review of recent molecular systematic studies of actinorhizal plants and their Frankia endosymbionts is presented. For comparative purposes, a discussion of recent studies pertaining to the evolution of nodulation in the legume-rhizobium system is included. Molecular systematic studies have revealed that actinorhizal plants are more closely related than current taxonomic schemes imply. Broad-based analyses of the chloroplast gene rbcL indicate that all symbiotic root-nodulating higher plants belong to a single large clade. More focused molecular analyses of both legume and actinorhizal hosts within this large clade indicate that symbioses have probably arisen more than once. By comparing host phylogenies and recently published bacterial phylogenies, we consider the coevolution of bacterial symbionts with their actinorhizal hosts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1997.tb05358.x
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  • 3
    Electronic Resource
    Electronic Resource
    nifV is contiguous to nifHDK in Frankia strain FaC1 (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 99 (1997), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The organization of genes with the capacity to code for four proteins involved in nitrogen fixation in Frankia strain FaC1 was determined by restriction fragment mapping and nucleotide sequence analysis. Analysis of the 44-kb genomic cosmid clone pFAH 1. isolated from a cosmid library made from Frankia strain FaCl, resulted in the identification of a 7.2-kb PstI fragment to which Klebsiella nifH, nifD and nifK probes hybridized. This nif-hybridizing fragment was subcloned and analyzed by restriction fragment mapping. Further subcloning of the 7.2-kb fragment and subsequent sequence analysis of approximately 6.8 kb revealed the presence of six open reading frames (ORFs). Four of these ORFs have the potential to code for nifV-, nifH-, nifD- and nifK-like gene products and the two others are unidentified ORFs. The organization of the structural genes for nitrogenase is the same in this Frankia strain as it is in most other nitrogen-fixing prokaryotes, but the positioning of the nifV-like gene relative to the nifHDK cluster differs, A consensus nif-promoter-like sequence, found 5’to nifH. was not detected upstream of the nifV-like gene. Nine copies of a 7-bp direct repeat were found 5’to ORFA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1997.tb05375.x
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  • 4
    Electronic Resource
    Electronic Resource
    Thymidine Phosphorylation in Arachis hypogaea by Combined Activities of Adenosine Triphosphate Phosphohydrolase and Nucleoside Phosphotransferase (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 42 (1978), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Extracts from hypocotyls of germinating peanuts (Arachis hypogaea L.) stimulated the formation of thymidine monophosphate from thymidine and adenosine triphosphate in the presence of magnesium ions. Such extracts were incapable of incorporating isotopic phosphorus from gamma-labelled adenosine triphosphate into thymidine during the synthesis of thymidine monophosphate but were competent in transferring phosphorus from alpha-labelled adenosine triphosphate to thymidine. The apparent thymidine kinase activity thus appeared to result from the combined activities of an adenosine triphosphatase (adenosine triphosphate pyrophosphohydrolase, E. C. 3.6.1.3) and a nucleoside phosphotransferase (E. C. 2.7.1.77). The latter two enzymes could be largely separated by using DEAE-Sephadex chromatography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb04103.x
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  • 5
    Electronic Resource
    Electronic Resource
    Physical characterization of mitochondrial DNA from cotton (1989)
    Springer
    Plant molecular biology 13 (1989), S. 467-468 
    Details
    ISSN: 1573-5028
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015558
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  • 6
    Electronic Resource
    Electronic Resource
    Leghemoglobin-like sequences in the DNA of four actinorhizal plants (1985)
    Springer
    Plant molecular biology 5 (1985), S. 333-337 
    Details
    ISSN: 1573-5028
    Keywords: actinorhizal plants ; hemoglobin ; leghemoglobin-like sequences ; Southern blots ; soybean
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A cloned cDNA partial copy of a soybean leghemoglobin mRNA was used to probe genomic DNA of four species of actinorhizal plants. Southern blot hybridization revealed the presence of sequences with homology to the leghemoglobin probe in DNA from Alnus glutinosa, Casuarina glauca, Ceanothus americanus and Elaeagnus pungens. The hybridization patterns of the restriction fragments revealed some fragment size conservation between the DNA of soybean and the DNA of four actinorhizal plants which are taxonomically unrelated to soybean or to each other. The results presented here indicate that globin gene sequences are much more widely distributed in the plant kingdom than has previously been thought. Furthermore, if sequence conservation is actually as high as the restriction fragment patterns suggest, the evolution of the DNA surrounding the globin sequences has been highly constrained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037553
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  • 7
    Electronic Resource
    Electronic Resource
    The impact of molecular systematics on hypotheses for the evolution of root nodule symbioses and implications for expanding symbioses to new host plant genera (1997)
    Springer
    Plant and soil 194 (1997), S. 185-192 
    Details
    ISSN: 1573-5036
    Keywords: actinorhizal plants ; evolution ; nitrogen fixation ; phylogenetic hypotheses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Current taxonomic schemes place plants that can participate in root nodule symbioses among disparate groups of angiosperms. According to the classification scheme of Cronquist (1981) which is based primarily on the analysis of morphological characters, host plants of rhizobial symbionts are placed in subclasses Rosidae and Hamamelidae, and those of Frankia are distributed among subclasses Rosidae, Hamamelidae, Magnoliidae and Dilleniidae. This broad phylogenetic distribution of nodulated plants has engendered the notion that nitrogen fixing endosymbionts, particularly those of actinorhizal plants, can interact with a very broad range of unrelated host plant genotypes. New angiosperm phylogenies based on DNA sequence comparisons reveal a markedly different relationship among nodulated plants and indicate that they form a more coherent group than has previously been thought (Chase et al., 1993; Swensen et al., 1994; Soltis et al., 1995). Molecular data support a single origin of the predisposition for root nodule symbiosis (Soltis et al., 1995) and at the same time support the occurrence of multiple origins of symbiosis within this group (Doyle, 1994; Swensen, 1996; Swensen and Mullin, In Press).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004240004063
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  • 8
    Electronic Resource
    Electronic Resource
    Molecular analysis of actinorhizal symbiotic systems: Progress to date (1996)
    Springer
    Plant and soil 186 (1996), S. 9-20 
    Details
    ISSN: 1573-5036
    Keywords: actinorhizal symbiosis ; ecology ; Frankia ; gene expression ; molecular analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The application of molecular tools to questions related to the genetics, ecology and evolution of actinorhizal symbiotic systems has been especially fruitful during the past two years. Host plant phylogenies based on molecular data have revealed markedly different relationships among host plants than have previously been suspected and have contributed to the development of new hypotheses on the origin and evolution of actinorhizal symbiotic systems. Molecular analyses of host plant gene expression in developing nodules have confirmed the occurrence of nodulin proteins and in situ hybridization techniques have been successfully adapted to permit the study of the spatial and temporal patterns of gene expression within actinorhizal nodules. The use of heterologous probes in combination with nucleotide sequence analysis have allowed a number of nif genes to be mapped on the Frankia chromosome which will ultimately contribute to the development of hypotheses related to nif gene regulation in Frankia. The use of both 16S and 23S rDNA nucleotide sequences has allowed the construction of phylogenetic trees that can be tested for congruence with symbiotic characters. In addition the development of Frankia-specific gene probes and amplification primers have contributed to studies on the genetic diversity and distribution of Frankia in the soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035050
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  • 9
    Electronic Resource
    Electronic Resource
    Restriction pattern analysis of genomic DNA ofFrankia isolates (1985)
    Springer
    Plant and soil 87 (1985), S. 43-48 
    Details
    ISSN: 1573-5036
    Keywords: Frankia ; Genomic DNA ; Restriction analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Total genomic DNAs ofFrankia isolates were subjected to restriction enzyme digestion and subsequent agarose gel electrophoresis. Restriction fragment banding patterns were unique for each isolate and may therefore be used as a method to distinguish between isolates which may be morphologically indistinguishable. This method might be useful for practical purposes such as tracing specificFrankia strains during field studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02277646
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  • 10
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    Diversity of Frankia nodule endophytes of the actinorhizal shrub Ceanothus as assessed by RFLP patterns from single nodule lobes (1994)
    Elsevier
    Details
    Publication Date: 1994-05-01
    Print ISSN: 0038-0717
    Electronic ISSN: 1879-3428
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Elsevier
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