Effects of salt stress on growth, photosynthesis and solute accumulation in three poplar cultivars

Title:

Effects of salt stress on growth, photosynthesis and solute accumulation in three poplar cultivars

Creator:

Chen, W., Zhou, D., Guo, W., Xu, H., Shi, D., and Yang, C.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b7b8695d-6409-4265-b06a-5738864a9a9f
uuid:b7b8695d-6409-4265-b06a-5738864a9a9f
issn:0300-3604
doi:10.1007/s11099-009-0063-y

Subject:

growth, photosynthesis, poplar, salt stress, and solute accumulation

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

This study compared the effects of salt (NaCl) stress on growth, photosynthesis and solute accumulation in seedlings of the three poplar (Populus bonatii) cultivars Populus × BaiLin-2 (BL-2), Populus × BaiLin-3 (BL-3), and Populus × Xjiajiali (XJJL). The results showed that BL-2 and BL-3 could not survive at a salinity level of 200 mM but XJJL grew well. The effect of moderate salt stress on leaf extension of the three cultivars was only slight. At a high level of salinity, however, NaCl clearly inhibited leaf extension of BL-2 and BL-3, whereas it did not affect that of XJJL, and the net photosynthetic rate (PN) in XJJL was much higher than those of BL-2 and BL-3. The lower PN of BL-2 and BL-3 might be associated with the high concentration of Na+ and/or Cl- accumulated in the leaves, which could be toxic in photosynthesis system. In summary, the greater salt-tolerance of XJJL compared with that of BL-2 and BL-3 might be explained by the higher PN and photosynthetic area, the lower Na+/K- ratio and Cl- in the leaf, and the greater accumulation of soluble sugars and SO4 2-. and W. Chen ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

415-421

Source:

Photosynthetica | 2009 Volume:47 | Number:3

Harvested from:

CDK

Metadata only:

false