植物学报2012，Vol.47Issue(5)：500-507,8.DOI:10.3724/SP.J.1259.2012.00500
NaCl对渗透胁迫下三角叶滨藜光合作用和水分状况的调节
Effect of NaCl on Photosynthesis and Water Status in Arrowleaf Saltbush Under Osmotic Stress
摘要
Abstract
We investigated the effect of moderate NaCi on photosynthesis and water absorption in arrowleaf saitbush (Atriplex triangularis) under PEG-induced osmotic stress to understand the effect of NaCI on plant adaptation to drought stress. PEG-induced osmotic stress led to reduced water absorption and chlorophyll content, injured photosystem and growth and reduced biomass. The addition of NaCI at 10-40 mmol·L-1 could reduce water potential and osmotic potential, maintain a high turgor, alleviate the destructive effect of osmotic stress to the photosystem, ensure a relatively high rate of photosynthesis and plant growth, and thus increase the adaptability of the plant to osmotic stress.关键词
三角叶滨藜/NaCl/渗透胁迫/光合作用/水分吸收Key words
Atriplex triangularis/NaCI/osmotic stress/photosynthesis/water absorption引用本文复制引用
柏新富,卜庆梅,谭永芹,朱建军,刘林德..NaCl对渗透胁迫下三角叶滨藜光合作用和水分状况的调节[J].植物学报,2012,47(5):500-507,8.基金项目
国家重点基础研究发展计划(No.2009CB421303) （No.2009CB421303）
