Correlation between Chloroplast Ultrastructure and Chlorophyll Fluorescence Characteristics in the Leaves of Rice (Oryza sativa L.) Grown under Salinity
By K. Yamane, M. Kawasaki, M. Taniguchi, H. Miyake. 2008
100 citations recorded by the source corpus.
Abstract The seedlings of Oryza sativa L. cv. Nipponbare grown by hydroponic culture for 3 wks were treated with 75, 100, 150 and 200 mM NaCl for 14, 14, 6 and 3 days, respectively, and examined for chloroplast ultrastructure in the region where chlorophyll fluorescence had been recorded. NaCl treatment decreased the ratio of variable to maximum chlorophyll fluorescence yield (Fv/Fm) and caused swelling of thylakoids. The swelling of thylakoids was quantified by the percentage of the length of swollen thylakoids to the total length of thylakoids. This value was increased with increasing NaCl concentration. Although Fv/Fm decreased at all concentrations of NaCl, the minimal fluorescence yield F0 was not increased by the treatment with 75 or 100 mM NaCl. The percentage of the length of swelling was low at 75 and 100 mM NaCl. On the other hand, F0 increased and the swelling of thylakoids was prominent with 150 and 200 mM NaCl treatment. These results suggest that the decrease in Fv/Fm due to the increase in F0 under salt stress correlates with the ultrastructural damage. The decrease in Fv/Fm due to the increase in F0 is expected to be useful as an indicator to evaluate the damage in chloroplasts, especially in thylakoid membranes, under salinity.
Subfields: Molecular Biology, Plant Science
View Paper: https://www.semanticscholar.org/paper/06cf88ae7e175bdc71b41e62d93025ad97b5ce05
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Plant Science
Citations in the corpus
- The Role of Priming with Biosynthesized Silver Nanoparticles in the Response of Triticum aestivum L to Salt Stress (2018, background): “The suppression in photosynthetic pigments content has been reported to be related to the inhibition of specific enzymes responsible for their synthesis and induction of some degradative enzymes such as chlorophyllase as well as destruction of the photosynthetic machinery (Yamane et al., 2008).”