原潘瑞炽《植物生理学》教材新版(第8版)第一章的改写说明

On the revision of chapter one in 8 th edition of textbook “Plant Physiology” edited by PAN Rui-Chi

对潘瑞炽主编的《植物生理学》教材第8版第一章的改写要点进行了说明,这些要点包括更换了细胞的水势-体积曲线;讨论了衬质势的适用范围仅限于固体或胶粒表面被吸附的薄层水而不适用于细胞的体相水(自由水);根部共质体途径运输途径的不可持续性及与蒸腾流相比可以忽略;分析了关于根压的受限性和气孔张开机理假说的合理性。

The revised main points in chapter one in the renewed edition of textbook'Plant Physiology'by PAN Rui-Chi were illustrated.Those points included the replacement of some of the figures such as the cell volume-water potential curve;issues about the matric potential being confined only to the thin layer of adsorbed water rather than the bulk water(free water);the non-sustainability of the symplastic pathway of water transport,where in the flow is negligible compared with the transpiration flow in plant roots;the rationality of the contemporary hypothesis on the mechanisms of stomata opening.