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作物抗盐机制研究 Ⅰ.小麦水分保持与质膜渗透性 被引量:6
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作者 杨劲松 沈其荣 陈德明 《土壤学报》 CAS CSCD 北大核心 2002年第4期524-528,共5页
运用盆栽试验方法,对五种小麦品种的抗盐性及其机理进行了研究。研究表明,盐分胁迫下抗盐小麦的蒸腾组织具有相对较高的蜡质含量、肉质化指数和叶相对含水量,因而保水抗盐能力较强。本试验中以“鲁麦19”和“植申2号”的抗盐力较强,而... 运用盆栽试验方法,对五种小麦品种的抗盐性及其机理进行了研究。研究表明,盐分胁迫下抗盐小麦的蒸腾组织具有相对较高的蜡质含量、肉质化指数和叶相对含水量,因而保水抗盐能力较强。本试验中以“鲁麦19”和“植申2号”的抗盐力较强,而其上述三种指标最高;“鲁麦23”则完全相反。小麦抗盐性还与其叶表面质膜组织有关。抗盐性强的小麦具有较高的质膜稳定性,影响其在盐渍条件下对盐离子的透性,即影响叶电解质渗透值和相对电解质外渗率。 展开更多
关键词 作物 抗盐机制 小麦 水分保持 质膜渗透性
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Stimuli-responsive Membranes: Smart Tools for Controllable Mass-transfer and Separation Processes 被引量:18
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作者 褚良银 谢锐 巨晓洁 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2011年第6期891-903,共13页
As emerging artificial biomimetic membranes, smart or intelligent membranes that are able to respond to environmental stimuli are attracting ever-increasing interests from various fields. Their permeation properties i... As emerging artificial biomimetic membranes, smart or intelligent membranes that are able to respond to environmental stimuli are attracting ever-increasing interests from various fields. Their permeation properties including hydraulic permeability and diffusional permeability can be dramatically controlled or adjusted self-regulatively in response to small chemical and/or physical stimuli in their environments. Such environmental stimuli-responsive smart membranes could find myriad applications in numerous fields ranging from controlled release to separations. Here the trans-membrane mass-transfer and membrane separation is introduced as the beginning to initiate the requirement of smart membranes, and then bio-inspired design of environmental stimuli-responsive smart membranes and four essential elements for smart membranes are introduced and discussed. Next, smart membrane types and their applications as smart tools for controllable mass-transfer in controlled release and separations are reviewed. The research tooics in the near future are also suggested. 展开更多
关键词 smart membranes responsive membranes bio-inspired membranes gating membranes MASS-TRANSFER controlled release separation
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