Submicroscopical Features of Leaves of Xyris Species

Abstract

The leaf ultrastructure of five Xyris species were examined using scanning electron microscope (SEM)

Effects of water deficit and rehydration on the polar lipid and membranes resistance leaves of Phaseolus vulgaris L. cv. Pérola

“…There are different mechanisms, which allow plants a high resistance to water deficit. Cellular membranes damage can be verified through different procedures, for example, directly by electronic microscopy (Sajo and Machado, 2001;Douliez, 2004) and indirectly by electrolytes leakage test (Ismail et al, 2000;Thiaw and Hall, 2004). The electrolytes leakage test can evaluate damages shown by the cellular membranes, where ions flow raise occurs in consequence of a larger cellular membranes permeability (Ismail et al, 1997).…”