Results 161 to 170 of about 794 (194)
Some of the next articles are maybe not open access.
Chemical Traits of Hemiparasitism in Odontites luteus
Chemistry & Biodiversity, 2017The study of the monoterpene glycosides content of Odontites luteus has shown the presence of a total of fifteen iridoid glucosides. The presence of compounds 1 – 5 and 7 – 10 is perfectly on‐line with both the biogenetic pathway for iridoids biosynthesis in Lamiales and the current botanical classification of the species.
Venditti, Alessandro +5 more
openaire +2 more sources
Resource limitation and the role of a hemiparasite on a restored prairie
Oecologia, 2012Hemiparasitic plants tend to thrive in and significantly affect plant communities in low-nutrient, high-light environments. Hemiparasites are assumed to be weak competitors for light but strong parasites, leading to the prediction that effects on hosts and communities should be a function of resource supply.
Victoria A, Borowicz +1 more
openaire +2 more sources
Phenotypic variation of the hemiparasite Pedicularis densiflora
2021Phenotypic variation allows plants to survive in a wide variety of environments and has been a topic of study for many decades. However, relatively little is known about the effect of biotic and abiotic factors on the phenotypic variation of parasitic plants.
Amezcua, Erick +3 more
openaire +1 more source
Nutritional studies of Hemiparasitic Orthocarpus (Scrophulariaceae)
Journal of Experimental Botany, 1978Excised shoot tips from Orthocarpus attenautus and O. purpurascens were cultured in vitro to ascertain whether the stem tips of these hemiparasites require complex organic substances for their development, and to determine if the capacity for haustoria formation is retained by the resulting plantlets.
ROBERT T. HEINEMAN, PETER R. ATSATT
openaire +1 more source
COMPOUNDS OF BENZOIC ACID IN HEMIPARASITIC SCROPHULARIACEAE
Acta Botanica Neerlandica, 1973SUMMARY It is demonstrated that ethanolic extracts from a number of hemiparasitic Scrophulariaceae species contain a compound with an absorption maximum at 230 nm, which is absent in nonparasitic members of the family. The peak at 230 nm could be attributed to benzoic acid.
openaire +2 more sources
Hemiparasitic Flowering Plants: Phenotypic Canalization by Hosts
Nature, 1970THE idea of combining the desired qualities of two distinct genotypes is old and universally appreciated. The genetic information can be brought together in two ways: within the same zygote through hybridization; or, for example, in higher plants, by grafting the stem of a superior fruit onto a particularly hardy root system.
openaire +2 more sources
A COMPARISON OF THE MINERAL RELATIONS OF A HALOPHYTIC HEMIPARASITE AND HOLOPARASITE
Acta Botanica Neerlandica, 1986The mineral relations of the halophytic root hemiparasite Odontites verna ssp. serotina and stem holoparasite Cuscuta salina var. major were compared. The xylem hemiparasite Odontites occurs on the upper parts of Dutch Wadden salt marshes attached to the roots of salt excluding monocotyledonous plant species. Cuscuta was sampled in San Francisco Bay (U.
J. Rozema +4 more
openaire +1 more source
The Population Dynamics and Community Ecology of Root Hemiparasitic Plants
The American Naturalist, 2000Root hemiparasitic plants and their host plants interact directly, through parasitism, as well as indirectly, through scramble competition for resources. To understand the population dynamics and community ecology of root hemiparasitic plants and their hosts, models of resource-based competition have been extended to include resource parasitism ...
openaire +3 more sources
PHYSIOLOGY AND MICROCLIMATE IN A HEMIPARASITE CASTILLEJA CHROMOSA (SCROPHULARIACEAE)
American Journal of Botany, 1979The hypothesis, that through use of a host, a hemiparasitic angiosperm will be able to “uncouple” physiological functions from microenvironmental variations, was tested by field measurements of water and carbohydrate balance between Castilleja chromosa and host Artemisia ...
openaire +1 more source
The hemiparasite Pedicularis palustris: ‘Ecosystem engineer’ for fen-meadow restoration
Journal for Nature Conservation, 2013‘Ecosystem engineers’ have a critical role in the structure and function of natural communities and need to be considered as focal species to enable successful conservation or restoration of ecosystems. Through introduction and/or managing a single species, an entire community can be influenced.
Decleer, Kris +2 more
openaire +2 more sources

