Intra cellular pH flux and cyclosis in plant cells under abiotic stress

Ethylene mediates stress responses through ROS and generates proton (H+) gradient in aquatic and semi-aquatic environments. Hence, pH flux is generated as a motive force at the interface of flowing and stationary endoplasm where microfilaments oriented parallel to streaming (Bradley, 1973).Cyclosis (cytoplasmic streaming), a self-sustaining motion generated by hydrodynamic behaviour and compressible intracellular flow resulting in thermal fluctuations adjusted by ion flux and transport. As per hypothesis, this force in turn maintains the turgor, tonoplast dynamics and continuous transport of sap. According toWang et al.(2015) nitric oxide, a free radicle negatively regulates ABA signalling where its deficiency creates stomatal closure. We found that, pH plays a major role in ABA function and rab gtpases were found to co-localise in guard cells when they are open