Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Springer  (2)
  • 1
    ISSN: 1573-1561
    Keywords: Amaranthus palmeri ; Palmer amaranth ; allelopathy ; seed germination ; weed residue ; volatiles ; ketones ; alcohols ; 2-heptanone ; 2-heptanol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Allelopathic volatiles associated with the weed Palmer amaranth (Amaranthus palmeri S. Wats.; AMAPA) were trapped on Tenax GC, thermally desorbed, and identified by gas chromatography-mass spectroscopy. Methyl ketones and alcohols (C4–C11) were the principal components of the volatiles mixture. Seedheads, stems, or roots were placed in a glass container and incubated at 31 °C (10 hr)/21 °C (14 hr) for three days prior to trapping the volatiles. Seedheads were rich in 2-heptanone which was consistently found, together with 2-heptanol, in all AMAPA tissues. Vapors of authentic 2-heptanone and (±)-2-heptanol at concentrations of 1 ppm or higher strongly inhibited the germination of onion and carrot and almost completely suppressed the germination of tomato and AMAPA seeds.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1573-6784
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Alginate and wheat gluten (“Pesta”) matrices were compared for the encapsulation of the white rot fungus Phanerochaete chrysosporium. “Pesta” granules were not successful for formulating P. chrysosporium although control granules made with Alternaria alternata yielded viable fungal colonies; the gluten in wheat flour apparently inhibits growth of the white rot fungus. P. chrysosporium formulated in alginate with corncob grits or sawdust, and stored at room temperature, yielded over 50% viability of encapsulated mycelia after six months. Alginate encapsulation offers a promising technology for the delivery of white rot fungi to toxic waste sites.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...