The role of calcium and activated oxygens as signals for controlling cross-tolerance

摘要: Plants are confronted on a regular basis with range of environmental stresses. These include abiotic insults caused by, for example, extreme temperatures, altered water status or nutrients, and biotic stresses generated by plethora plant pathogens. Many studies have shown that the cellular responses to these challenges rather similar, which might be why plants resistant one stress sometimes cross-tolerant others. To understand this phenomenon able take full advantage it in agriculture, we must determine whether individual biochemical pathways make up each external stimulus activated unique, overlapping redundant signalling systems. We discuss potential role molecules, such as calcium oxygen species, underlying cross-tolerance.