Comments on the Absorption of Inorganic Ions by Root Cells.

摘要: The findings of modern microscopy reveal a seemingly unlimited physical organization in living protoplasm. At the same time, they point up extreme lability many protoplasmic structures. For example, endoplasmic reticulum, continuous network membrane-bound cavities that permeates cytoplasm animal cells, breaks down on injury or cytolysis into collection isolated vesicles (10). Also, it is well known structures such as mitochondria may be profoundly altered result cellular changes variations experimental conditions (1). In terms organic chemistry, protoplast are equally elaborate. From even cursory survey plant biochemistry one impressed by complexity and their instability transitory nature. present communication, writer wishes to out much puzzling information concerning absorption inorganic ions tisstues becomes more comprehensible when viewed That is, mineral isotopic exchange data regarding root tissues suggest laid component units highly complex unstable chemical arrangements cells. Certain ideas presented similar those put forth decade ago Steinbach basis behavior striated muscle cells (11). A few examples will serve general concept. It has been commonly observed lose absorbed K+ dilute solutions HCl. With barley tissue, essentially all released two-hour period HCl normality 10-3 greater (7). further significant aspect release concomitant proportionate loss variety other constituents phosphorus, soluble nitrogen, Ca++ hydrogen ion concentrations induce relea:se particular also effect cations anions certain components cell. Conceivably, this observation could explainedl an properties cytoplasmic membranes. writer's opinion, explained H+ structure which represented.