منابع مشابه
Contrasting cascades: insectivorous birds increase pine but not parasitic mistletoe growth.
1. Intraguild predation occurs when top predators feed upon both intermediate predators and herbivores. Intraguild predators may thus have little net impact on herbivore abundance. Variation among communities in the strength of trophic cascades (the indirect effects of predators on plants) may be due to differing frequencies of intraguild predation. Less is known about the influence of variatio...
متن کاملMistletoe hepatitis.
A 49-year-old woman presented with nausea, general malaise, and a dull ache in the right hypochondrium. Liver biopsy showed slight inflammatory-cell infiltration, and results of liver function tests suggested hepatitis. Hepatitis B surface antigen was not detected, and a cholecystogram was normal. Two years later she presented with similar symptoms, and both illnesses were found to have occurre...
متن کاملImpact of Mistletoe Triterpene Acids on the Uptake of Mistletoe Lectin by Cultured Tumor Cells
Complementary treatment possibilities for the therapy of cancer are increasing in demand due to the severe side effects of the standard cytostatics used in the first-line therapy. A common approach as a complementary treatment is the use of aqueous extracts of Viscum album L. (Santalaceace). The therapeutic activity of these extracts is attributed to Mistletoe lectins which are Ribosome-inactiv...
متن کاملControl of Dwarf Mistletoe
The dwarf mis t le toe Afeeu t 'hobh abietinum is a ser ious pa ras i t e of t r u e f i r s [Abies spp.) growing on the Pac i f i c Coast. Damage is most severe i n old-growth and unmanaged f i r stands. With information now avai lable , the fo res t manager can develop management guides f o r control of dwarf mistletoe. Such information includes parasite-host spec i f i c i ty , s i z e a t w...
متن کاملDoes Mutation Rate Depend on Itself?
M any a research paper, textbook chapter, and grant proposal has begun with the phrase " Mutation is the ultimate source of genetic variation. " Implicit in this phrase is the assumption that genetic variation is required for evolution. Without mutation, evolution would not be possible, and life itself could never have arisen in the first place. However, there is overwhelming evidence that the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1878
ISSN: 0006-8071
DOI: 10.1086/325135