A new polyacetylene from Solidago altissima L.
نویسندگان
چکیده
منابع مشابه
Plastic Relationships between Reproductive and Vegetative Mass in Solidago Altissima.
To test several predictions of a model of linear, size-dependent reproductive output in plants, we analyzed the relationship between shoot vegetative (v) and reproductive (r) mass in five experiments on Solidago altissima from an invading population in Switzerland. There was large environmentally-induced and genetic variation in r and v. A large amount of variation in r could be explained by va...
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Two new triterpenoid saponins (1, 2) were isolated from the roots of Gypsophila altissima L. (Caryophyllaceae), together with a known compound (3). The structures of new saponins were established as quillaic acid 3-O-beta-D-xylopyranosyl-(1-->3)-beta-D-glucuronopyranoside (1), and 3-O-beta-D-galactopyranosyl-(1-->2)-[beta-D-xylopyranosyl-(1-->3)]-beta-D-glucuronopyranosyl quillaic acid 28-O-(6-...
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Abstract Two new triterpenoid saponins, named giganteasaponin 5 and giganteasaponin 6, were isolated from the aboveground parts of Solidago gigantea and were defined to be 3-O-[ -D-Apio-D-furanosyl-(1 3)-D-glucopyranosyl-(1 3)-D-glucopyranosyl]-28-O { -L-rhamnopyranosyl-(1 3)-D-xylopyranosyl-(1 4)[ -D-xylopyranosyl-(1 3)]-L-rhamnopyranosyl-(1 2) [ -L-rhamnopyranosyl-(1 3)]-Dxylopyranosyl}-Bayog...
متن کاملAssociational resistance, gall-fly preferences, and a stem dimorphism in Solidago altissima
In most populations of Solidago altissima, a small proportion of plants have a growth pattern in which the stem bends early in the season so that the apex is pointing downward (i.e., a ‘‘candy-cane’’ stem) then straightens up again later in the season. The majority of plants, however, do not show this pattern. Instead their stems remain erect from emergence through flowering and senescence. It ...
متن کاملOrigins, distribution, and local co-occurrence of polyploid cytotypes in Solidago altissima (Asteraceae).
There is growing realization that intraspecific polyploidy in plants has important implications for the evolution of plant diversity and for plant and plant-herbivore community dynamics. Nonetheless, the rate at which polyploid cytotypes arise and their fate in local mixed-cytotype populations are not well understood. Although within- and especially among-population cytotype variation has been ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1976
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.40.353