(Major) Title PHYSIOLOGICAL RELATIONSHIPS BETI,IrEEN DWARF

A comparative study was made of Pinus ponderosa Laws, and Arceuthobium carnpylopodum Engelm. f. campylopodum to deter-mine (1) whether or not the parasite or parasitized tissues accumu-late abnormal concentrations of minerals, (2) whether or not there was evidence of a blockage of mineral translocation in the phloem because of the parasite, and (3) whether or not changes qccurred in host foliage which could be interpreted as mineral deficiency. Also, comparative analyses using chromatographic methods were made of simple carbohydrates and free amino acids. Quanti-tative analyses of carbohydrates also were carried out. Manometric methods were employed to evaluate the ability of host and parasite to utilize exogenously supplied carbohydrates and amino acids. Substances identified by chromatography in the host and parasite Redacted for Privac