Distribution of Dwarf Mistletoes (Arceuthobium spp., Viscaceae) in Durango, Mexico

Physiological Aspects of Parasitism in Mistletoes (Arceuthobium and Phoradendron). I. The Carbohydrate Nutrition of Mistletoe.

pete with Rb absorption, in order of decreasing effectiveness: K, Cs, NH4, Li, Na. The affinity of the K-Rb transport mechanism for Na is on the order of 1-2 % of its affinity for K-Rb. Rates of absorption and degree of interference are nearly the same, whether Cl or SO4 is the counterion. The close correspondence between the observations on the K absorption mechanism in leaf tissue of corn and...

Physiological Aspects of Parasitism in Mistletoes (Arceuthobium and Phoradendron). II. The Photosynthetic Capacity of Mistletoe.

Two new pathogenic ascomycetes in Guignardia and Rosenscheldiella on New Zealand's pygmy mistletoes (Korthalsella: Viscaceae)

Two new pathogens, Guignardia korthalsellae and Rosenscheldiella korthalsellae, are described from New Zealand's pygmy mistletoes (Korthalsella, Viscaceae). Both form ascomata on living phylloclades with minimal disruption of the tissue. Fungal hyphae within the phylloclade are primarily intercellular. Guignardia korthalsellae disrupts a limited number of epidermal cells immediately around the ...

Hospitalized stroke surveillance in the community of Durango, Mexico: the brain attack surveillance in Durango study.

BACKGROUND AND PURPOSE Vascular conditions are becoming the greatest cause of morbidity and mortality in developing countries. Few studies exist in Latin America. We aimed to perform a rigorous stroke surveillance study in Durango, Mexico. METHODS Active and passive surveillance were used to identify all patients with potential stroke presenting to Durango Municipality hospitals from August 2...

The discovery of three genetic races of the dwarf mistletoe Arceuthobium americanum (Viscaceae) provides insight into the evolution of parasitic angiosperms.

A population genetic approach was used to explore the evolutionary biology of the parasitic angiosperm Arceuthobium americanum Nutt. ex Engelm. (Viscaceae). Arceuthobium americanum infects three principal hosts and has the most extensive geographical range of any North American dwarf mistletoe. Based on the lack of apparent morphological and phenological differences between populations of A. am...