The Effect of Algal Inhibitors on Higher Plant Tissues

摘要

Commonly-occurring algae in Colorado reservoirs and ponds were studied with regard to inhibitor production and their effects on higher plants. Seven algal genera that are abundant in Colorado irrigation waters were found to have significant effects on higher plants. The genera were Aphanizomenon, Microcystis, Nitzschia, Hydrodictyon, Scenedesmus, Lyngbya, and Anabaena. Cytological investigations with the electron microscope also revealed sub-cellular changes including retardation of protein body degradation lack of starch formation, disruption of proper photosynthetic lamellar (thylakoid) formation in chloroplasts, decrease in cell size, and retardation of vascular tissue development.