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  • Articles  (46)
  • maize
  • Springer  (46)
  • American Chemical Society (ACS)
  • 2015-2019
  • 2005-2009
  • 1990-1994  (37)
  • 1980-1984  (9)
  • 1991  (37)
  • 1984  (9)
Collection
  • Articles  (46)
Source
Keywords
Publisher
Years
  • 2015-2019
  • 2005-2009
  • 1990-1994  (37)
  • 1980-1984  (9)
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Oviposition by the African migratory locust, Locusta migratoria migratorioides, in a crop environment in South Africa (1991)
    Springer
    Entomologia experimentalis et applicata 61 (1991), S. 169-177 
    Details
    ISSN: 1570-7458
    Keywords: African migratory locust ; crop environment ; oviposition behaviour ; oviposition sites ; maize
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Oviposition by the African migratory locust, Locusta migratoria migratorioides (Orthoptera: Acrididae), was studied in maize and wheat crops on the Orange Free State Highveld. Maize was shown to be the most important oviposition habitat with peak laying taking place in autumn and early winter when highest pod densities were recorded. Laying was mainly concentrated along the middle of the crop interrows in maize and within clearings in the wheat crop. Despite the uniform layout of these crops, the distribution of egg pods was found to be aggregated. Non-reproductive behaviour, such as locust aggregation, basking and feeding, as well as environmental factors appeared to influence the distribution of egg pods in these crops. Secondary selection for optinum soil moisture and compaction on the laying site enhanced the aggregation of pods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00191747
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  • 2
    Electronic Resource
    Electronic Resource
    Mycotoxin production by Fusarium species isolated from New Zealand maize fields (1991)
    Springer
    Mycopathologia 113 (1991), S. 35-40 
    Details
    ISSN: 1573-0832
    Keywords: Fusarium ; maize ; moniliformin ; mycotoxins ; trichothecenes ; zearalenone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Forty Fusarium isolates obtained from maize fields were screened for moniliformin production on maize kernels. Twelve isolates, including seven of F. subglutinans, were found to produce moniliformin at levels ranging from 0.4 to 64 ppm. Twenty six isolates were also screened for production of deoxynivalenol, diacetoxyscirpenol, T-2 toxin and zearalenone. Of these, 22, including all 11 isolates of F. graminearum, produced zearalenone at levels ranging from 0.1 to 96.0 ppm, while 13 produced T-2 toxin at low levels, (〈1.1 ppm). Deoxynivalenol and diacetoxyscirpenol were each produced by six isolates, also at low levels (〈1.0 ppm). Three isolates of F. graminearum and one of F. sambucinum produced four toxins simultaneously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00436385
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  • 3
    Electronic Resource
    Electronic Resource
    Ribosomal RNA contents of maize genotypes with different ribosomal RNA gene numbers (1984)
    Springer
    Biochemical genetics 22 (1984), S. 923-930 
    Details
    ISSN: 1573-4927
    Keywords: maize ; ribosomal RNA ; nucleolus ; ribosomal rRNA genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Ribosomal RNA (rRNA) contents were determined in 16 maize genotypes whose individual rRNA gene numbers varied from 5000 to 23,000 per 2C nucleus. Analytical polyacrylamide gel electrophoresis of total RNA showed that no obvious relation existed between rRNA gene number and rRNA content. Only two of nine common inbred lines contained more rRNA than W-23, the inbred with the lowest rRNA gene number. Two of four lines with altered protein content (due to long-term experimental selection) had rRNA contents significantly reduced from those of W-23. A line with an apparent duplication of the nucleolus organizer region of chromosome 6 (called 2-NOR) was expected to possess an elevated quantity of rRNA because it possesses a larger nucleolus; however, we produced a 2-NOR isogenic version and found no difference in rRNA content. The rRNA genes in maize are distributed throughout the NOR-heterochromatin and the NOR-secondary constriction portions of the NOR. The absence of an obvious correlation between rRNA gene number and cellular rRNA content may reflect the presence of a large number of rRNA genes in an inactive state, at least during the stage of growth examined in these experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00499483
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  • 4
    Electronic Resource
    Electronic Resource
    A maize gene expressed during embryogenesis is abscisic acid-inducible and highly conserved (1991)
    Springer
    Plant molecular biology 16 (1991), S. 919-923 
    Details
    ISSN: 1573-5028
    Keywords: Zea mays ; maize ; embryogenesis ; abscisic acid ; seed maturation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have isolated by differential hybridization a cDNA, termed Emb564, which is complementary to an 800 nt embryo-specific transcript in Zea mays. The expression of Emb564 can be enhanced by exogenous abscisic acid (ABA) and the effect of ABA on the accumulation of Emb564 transcript appears to be confined to embryos at the early and mid embryonic stages. In addition, Emb564 is expressed at low levels in ABA-deficient but not in ABA non-responsive embryos. Genomic analysis suggested that the Emb564 mRNA is encoded by a single gene. Sequence analysis showed that Emb564 exhibits extensive similarities with several known ABA-inducible genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015086
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  • 5
    Electronic Resource
    Electronic Resource
    Nucleotide sequence of ‘repeat-2’ of the mitochondrial DNA from the maize N-cytoplasm (1991)
    Springer
    Plant molecular biology 16 (1991), S. 935-936 
    Details
    ISSN: 1573-5028
    Keywords: maize ; mitochondrial DNA ; repeated sequence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015089
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  • 6
    Electronic Resource
    Electronic Resource
    Characterization of the maize pyruvate decarboxylase gene (1991)
    Springer
    Plant molecular biology 17 (1991), S. 1259-1261 
    Details
    ISSN: 1573-5028
    Keywords: anaerobic genes ; maize ; pyruvate decarboxylase ; DNA sequence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028743
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  • 7
    Electronic Resource
    Electronic Resource
    Subcellular localization of glutelin-2 in maize (Zea mays L.) endosperm (1984)
    Springer
    Plant molecular biology 3 (1984), S. 227-234 
    Details
    ISSN: 1573-5028
    Keywords: endosperm ; immunoelectron microscopy ; glutelins ; maize ; protein blotting ; protein bodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Accumulation of the 28 KD protein of the glutelin-(G2) fraction was followed in developing maize endosperm, using sodium dodecylsulphate polyacrylamide gel electrophoresis (SDS-PAGE) and peak integration of scanned gels. 28 KD glutelin-2 could already be observed from 15 days after pollination and its accumulates reached a plateau during the second half of the development period. The process of biosynthesis of 28 KD glutelin-2 and zeins occurs in a parallel way. Subcellular fractions obtained from linear sucrose gradient centrifugation of developing maize endosperms were analyzed by SDS-PAGE and immunoblotting using a serum reacting against glutelin-2 and 14 KD Z2. Glutelin-2 was found to be present in the protein bodies when subcellular fractionation was carried out without dithiothreitol (DTT). The presence of a reducing agent causes the elution of glutelin-2 from protein bodies. Immunocytochemical labelling using the protein A-colloidal gold technique in protein bodies incubated with anti-G2 IgG revealed that G2 is located mainly in the periphery of protein bodies. These results are interpreted as indicating a structural role for glutelins in protein bodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029658
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  • 8
    Electronic Resource
    Electronic Resource
    Homology between the ribosomal DNA of Escherichia coli and mitochondrial DNA preparations of maize is principally to sequences other than mitochondrial rRNA genes (1984)
    Springer
    Plant molecular biology 3 (1984), S. 355-361 
    Details
    ISSN: 1573-5028
    Keywords: maize ; mitochondrial DNA ; E. coli ribosomal DNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract E. coli ribosomal DNA has been used to probe maize mitochondrial DNA. It hybridizes primarily with chloroplast ribosomal DNA sequences and with fungal and bacterial sequences which may contaminate the mtDNA preparations. It also hybridizes to the chloroplast 16S ribosomal RNA gene sequence present in the mitochondrial genome (1) as well as to the mitochondrial 18S ribosomal RNA gene sequence. Weak sequence homology was detected between E. coli rDNA and the mitochondrial 26S ribosomal RNA gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033382
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  • 9
    Electronic Resource
    Electronic Resource
    Determination of the translation start site of the large subunit of ribulose-1,5-bisphosphate carboxylase from maize (1984)
    Springer
    Plant molecular biology 3 (1984), S. 403-406 
    Details
    ISSN: 1573-5028
    Keywords: translation ; carboxylase ; chloroplast ; maize
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Sequence studies of the gene for the large subunit of ribulose-1,5-bisphosphate carboxylase from maize indicate the presence of two translation start sites, 18 bp apart. Each site is preceded by a suitable ribosome binding region. By using a simplified E. coli-based in vitro system which measures fromation of the first dipeptide of the gene product, we have determined that only the second methionine initiates translation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033388
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  • 10
    Electronic Resource
    Electronic Resource
    Characterization of a maize cDNA that complements an enolase-deficient mutant of Escherichia coli (1991)
    Springer
    Plant molecular biology 16 (1991), S. 787-795 
    Details
    ISSN: 1573-5028
    Keywords: anaerobic stress ; enolase ; gene regulation ; maize
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A cDNA encoding maize enolase (2-phospho-D-glycerate hydrolase) was purified by functional genetic complementation using an enolase deficient mutant of Escherichia coli, DF261. This cDNA, pZM245, was characterized by restriction mapping and DNA sequence analysis. The cDNA contained an open reading frame encoding a protein of 446 amino acids with a high degree of similarity to enolase sequences from other organisms (72% identity to yeast enolase and 82% identity to human enolase). The pZM245 contains a correctly positioned consensus prokaryotic translation initiation sequence. The specific activity of enolase in maize increases to about twice its initial level after 48 hours of anaerobiosis. Northern-blot analysis showed a five-fold anaerobic induction in enolase mRNA, while heat shock or cold shock increased enolase mRNA levels only slightly. Southern-blot analysis of maize genomic DNA indicated that there is one copy of the pZM245 hybridizing sequence per haploid genome in maize.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015071
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