摘要
ＮａＣｌ处理后，灰绿藜整个叶片内Ｎ＋ａ和Ｃｌ－积累，但叶绿体内仅少量增加．叶绿体与叶片的Ｋ＋浓度都降低．ＮａＣｌ导致灰绿藜叶片的渗透势和水势降低，但膨压稍增大．ＮａＣｌ处理后，灰绿藜叶片净光合速率、气孔导度、蒸腾速率、细胞间隙ＣＯ２浓度都下降，气孔限制值和水分利用效率增大．
After NaCl treatment, Na+ and Cl- concentrations in leaves of Chenopodium glaucum L. Were much increased, but less in chloroplasts, K+ concentrations in leaves and chloroplasts both decreased. NaCl lowered the osmotic potential and water potential of C. glaucum L. leaves, but increased the pressure potential a little. Net photosynthetic rate, stomatal conductance, transpiration rate and internal CO2 concentration were all decreased by NaCl, but stomatal limitation of phtosynthesis and water use efficiency increased.
出处
《曲阜师范大学学报（自然科学版）》
CAS
1998年第3期57-61,共5页
Journal of Qufu Normal University(Natural Science)
关键词
灰绿藜
叶绿体
离子调节
盐胁迫
光合特性
Chenopodium glaucum L. salt stress chloroplast ionic regulation netphotosynthetic rate stomatal limitation
