2 条结果 关键词:渗透胁迫 ×

A novel biosensor to monitor proline in pea root exudates and nodules under osmotic stress and recovery.

Plant and soil 2020 Rubia MI, Ramachandran VK, Arrese-Igor C, Larrainzar E 等 5 人

植物和细菌均可合成脯氨酸,以对抗渗透胁迫带来的不利影响。现有方法多依赖破坏性提取,难以在完整组织中动态监测。本文报道了一种新型脯氨酸生物传感器,可非侵入地监测豆科植物根分泌物和根瘤中的脯氨酸水平。该传感器通过在野豌豆根瘤菌(Rhizobium leguminosarum bv. viciae)中将 pRL120553 基因的启动子区...

Rapid determination of the damage to photosynthesis caused by salt and osmotic stresses using delayed fluorescence of chloroplasts.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2008 Zhang L, Xing D

叶绿体是对盐和渗透胁迫最敏感的系统之一。本研究基于叶绿体延迟荧光(DF)的定量测量,利用自制多通道生物传感器,研究了拟南芥幼苗在盐胁迫和渗透胁迫下光合作用的损伤。结果表明,随着NaCl或山梨醇浓度升高,DF强度与净光合速率(Pn)呈相似下降趋势。200 mM NaCl处理诱导DF强度和Pn先快速可逆下降,随后发生缓慢且不可逆的损失;...