Results 151 to 160 of about 1,647 (178)
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Revista Iberoamericana De Micologia, 2007
Aspidosperma quebracho-blanco (white quebracho) and Schinopsis balansae (red quebracho) are distinctive trees of the South American Park in Argentina. Quebrachos are found in forests that have been exploited very intensively. The object of this work was the identification of biotic and abiotic factors specially fungal pathogen that affect the quality ...
Claudia Alzugaray +3 more
exaly +2 more sources
Aspidosperma quebracho-blanco (white quebracho) and Schinopsis balansae (red quebracho) are distinctive trees of the South American Park in Argentina. Quebrachos are found in forests that have been exploited very intensively. The object of this work was the identification of biotic and abiotic factors specially fungal pathogen that affect the quality ...
Claudia Alzugaray +3 more
exaly +2 more sources
Journal of Pharmaceutical Sciences, 1973
Abstract A continuing investigation of the leaves of Aspidosperma quebracho-bianco Schlecht. (Apocynaceae) has resulted in the isolation of natural acetylakuammidine, in addition to the previously reported alkaloids aspidospermine and quebrachidine. Methods used for the isolation and characterization of these bases are described.
R L, Lyon, H H, Fong, N R, Farnsworth
exaly +3 more sources
Abstract A continuing investigation of the leaves of Aspidosperma quebracho-bianco Schlecht. (Apocynaceae) has resulted in the isolation of natural acetylakuammidine, in addition to the previously reported alkaloids aspidospermine and quebrachidine. Methods used for the isolation and characterization of these bases are described.
R L, Lyon, H H, Fong, N R, Farnsworth
exaly +3 more sources
Alkaloids from Cell Cultures of Aspidosperma Quebracho-Blanco
Alkaloids: Chemical and Biological Perspectives, 1995P. Obitz +4 more
exaly +2 more sources
Der Formenkreis von Aspidosperma quebracho-blanco Schltd
Notizblatt Des Königlichen Botanischen Gartens Und Museums Zu Berlin, 1937exaly +2 more sources
�ber neue Alkaloide aus der Rinde von Aspidosperma Quebracho blanco Schlecht
Die Naturwissenschaften, 1960Paul Tunmann, Josef Rachor
exaly +2 more sources
Aspidosperma quebracho-blanco Schltdl.
2022Published as part of Castello, Ana Carolina Devides, Pereira, Andreza Stephanie De Souza, Shimizu, Gustavo Hiroaki, Zuntini, Alexandre Rizzo, Simões, André Olmos & Koch, Ingrid, 2022, Taxonomy and nomenclature of Aspidosperma (Apocynaceae), pp. 239-277 in Phytotaxa 571 (3) on pages 263-264, DOI: 10.11646/phytotaxa.571.3.1, http://zenodo.org/record ...
Castello, Ana Carolina Devides +5 more
openaire +1 more source
An Extract From the Bark of Aspidosperma Quebracho Blanco Binds to Human Penile ??-Adrenoceptors
The Journal of Urology, 2002We determined whether an extract from the bark of the tree Aspidosperma quebracho blanco, which is used as a prescription drug to treat erectile dysfunction in some countries, can bind to human penile alpha1 and alpha2-adrenoceptors, and cloned human alpha-adrenoceptor subtypes.Competition binding studies were performed with alpha1 and alpha2 ...
Sperling, Herbert +4 more
openaire +3 more sources
International Journal of Plant Sciences, 1999
Flower structure, attractants, breeding system, and visitors were studied in Aspidosperma quebracho-blanco, a South American mass-flowering tree with simple moth-pollinated flowers and without floral reward. Flowers are protandrous, having an initial male phase for 2 d. The pendulous and horizontal flower position and protandry prevent self-pollination.
, Lin, , Bernardello
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Flower structure, attractants, breeding system, and visitors were studied in Aspidosperma quebracho-blanco, a South American mass-flowering tree with simple moth-pollinated flowers and without floral reward. Flowers are protandrous, having an initial male phase for 2 d. The pendulous and horizontal flower position and protandry prevent self-pollination.
, Lin, , Bernardello
openaire +2 more sources
Austral Ecology, 2006
Abstract Aspidosperma quebracho‐blanco is found throughout the Chaco (17°−33°S) in Argentina, and it is the dominant tree species in the arid Chaco. Under the hypothesis that morpho‐physiological features of A. quebracho‐blanco change as a function of its geographical position on a water deficit gradient, it was predicted that with increasing water ...
ALICIA H. BARCHUK +1 more
openaire +1 more source
Abstract Aspidosperma quebracho‐blanco is found throughout the Chaco (17°−33°S) in Argentina, and it is the dominant tree species in the arid Chaco. Under the hypothesis that morpho‐physiological features of A. quebracho‐blanco change as a function of its geographical position on a water deficit gradient, it was predicted that with increasing water ...
ALICIA H. BARCHUK +1 more
openaire +1 more source