Details
| Original language | English |
|---|---|
| Pages (from-to) | 1528-1542 |
| Number of pages | 15 |
| Journal | Plant Cell and Environment |
| Volume | 38 |
| Issue number | 8 |
| Early online date | 4 Jul 2015 |
| Publication status | E-pub ahead of print - 4 Jul 2015 |
Abstract
There are conflicting opinions on the relative importance of photosynthetic limitations under salinity. Quantitative limitation analysis of photosynthesis provides insight into the contributions of different photosynthetic limitations, but it has only been applied under saturating light conditions. Using experimental data and modelling approaches, we examined the influence of light intensity on photosynthetic limitations and quantified the osmotic and ionic effects of salinity on stomatal (LS), mesophyll (LM), biochemical (LB) and light (LL) limitations in cucumber (Cucumis sativusL.) under different light intensities. Non-linear dependencies of LS, LM and LL to light intensity were found. Osmotic effects on LS and LM increased with the salt concentration in the nutrient solution (Ss) and the magnitude of LM depended on light intensity. LS increased with the Na+ concentration in the leaf water (Sl) and its magnitude depended on Ss. Biochemical capacity declined linearly with Sl but, surprisingly, the relationship between LB and Sl was influenced by Ss.
Keywords
- Cucumis sativus, FvCB model, Ionic stress, Light condition, Osmotic stress, Quantitative limitation analysis
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Physiology
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Plant Cell and Environment, Vol. 38, No. 8, 04.07.2015, p. 1528-1542.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Disentangling the contributions of osmotic and ionic effects of salinity on stomatal, mesophyll, biochemical and light limitations to photosynthesis
AU - Chen, Tsu Wei
AU - Kahlen, Katrin
AU - Stützel, Hartmut
PY - 2015/7/4
Y1 - 2015/7/4
N2 - There are conflicting opinions on the relative importance of photosynthetic limitations under salinity. Quantitative limitation analysis of photosynthesis provides insight into the contributions of different photosynthetic limitations, but it has only been applied under saturating light conditions. Using experimental data and modelling approaches, we examined the influence of light intensity on photosynthetic limitations and quantified the osmotic and ionic effects of salinity on stomatal (LS), mesophyll (LM), biochemical (LB) and light (LL) limitations in cucumber (Cucumis sativusL.) under different light intensities. Non-linear dependencies of LS, LM and LL to light intensity were found. Osmotic effects on LS and LM increased with the salt concentration in the nutrient solution (Ss) and the magnitude of LM depended on light intensity. LS increased with the Na+ concentration in the leaf water (Sl) and its magnitude depended on Ss. Biochemical capacity declined linearly with Sl but, surprisingly, the relationship between LB and Sl was influenced by Ss.
AB - There are conflicting opinions on the relative importance of photosynthetic limitations under salinity. Quantitative limitation analysis of photosynthesis provides insight into the contributions of different photosynthetic limitations, but it has only been applied under saturating light conditions. Using experimental data and modelling approaches, we examined the influence of light intensity on photosynthetic limitations and quantified the osmotic and ionic effects of salinity on stomatal (LS), mesophyll (LM), biochemical (LB) and light (LL) limitations in cucumber (Cucumis sativusL.) under different light intensities. Non-linear dependencies of LS, LM and LL to light intensity were found. Osmotic effects on LS and LM increased with the salt concentration in the nutrient solution (Ss) and the magnitude of LM depended on light intensity. LS increased with the Na+ concentration in the leaf water (Sl) and its magnitude depended on Ss. Biochemical capacity declined linearly with Sl but, surprisingly, the relationship between LB and Sl was influenced by Ss.
KW - Cucumis sativus
KW - FvCB model
KW - Ionic stress
KW - Light condition
KW - Osmotic stress
KW - Quantitative limitation analysis
UR - http://www.scopus.com/inward/record.url?scp=84936845569&partnerID=8YFLogxK
U2 - 10.1111/pce.12504
DO - 10.1111/pce.12504
M3 - Article
C2 - 25544985
AN - SCOPUS:84936845569
VL - 38
SP - 1528
EP - 1542
JO - Plant Cell and Environment
JF - Plant Cell and Environment
SN - 0140-7791
IS - 8
ER -