Polyethylene Glycol Test for Evaluation of Cell Membrane Stability in Maize

Japanese Journal of Crop Science

Hirohumi SANEOKA¹  Shoitsu OGATA¹  Gnanasiri S. PREMACHANDRA¹ 

关键词: Cell membrane stability;    細胞膜安定性;    Drought tolerance;    耐干性;    Polyethylene glycol;    ポリエチエングリコール;   

DOI  :  10.1626/jcs.58.419

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The cell membrane stability of three maize cultivars was measured by the polyethylene glycol (PEG) test at different parts of leaf (base, middle and tip parts of the uppermost full open leaf). The % injury in PEG test was compared with other measurements such as stomatal and cuticular resistance and the physiological state of the leaf parts. Leaf water potential, osmotic potential and Mg contents in cell sap and leaf tissues were well correlated with % injury in PEG test. Osmotic potential of leaf tissues seems to influence the desiccation treatment in PEG test. Relative contribution of sugar to osmotic potential was higher than the other solutes but sugar contents in leaf tissues or cell sap did not suggest the existence of any relationship with % injury in PEG test.

【 授权许可】

Unknown