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Estimating chlorophyll content and photochemical yield of photosystem II (ΦPSII) using solar-induced chlorophyll fluorescence measurements at different growing stages of attached leaves.

Tubuxin B, Rahimzadeh-Bajgiran P, Ginnan Y, Hosoi F, Omasa K - J. Exp. Bot. (2015)

Bottom Line: The steady-state solar-induced Chl fluorescence yield ratio correlated very well with the artificial-light-induced one (R(2) = 0.84).A new methodology is then presented to estimate photochemical yield of photosystem II (ΦPSII) from the SIF measurements, which was verified against the standard Chl fluorescence measurement method (pulse-amplitude modulated method).The high coefficient of determination (R(2) = 0.74) between the ΦPSII of the two methods shows that photosynthesis process parameters can be successfully estimated using the presented methodology.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657 Japan.

No MeSH data available.


Relationships between leaf Chl content and steady-state SIF yields. (A) ΦFa686.7. (B) ΦFa760.4.
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Figure 4: Relationships between leaf Chl content and steady-state SIF yields. (A) ΦFa686.7. (B) ΦFa760.4.

Mentions: Figure 4 shows the relationships between leaf Chl content and steady-state solar-induced Chl fluorescence yields of ΦFs686.7 and ΦFs760.4. The Chl fluorescence yields of ΦFs686.7 decreased with an increase in Chl content (Fig. 4A), whereas the Chl fluorescence yields of ΦFs760.4 increased, although the yields varied largely, especially in ΦFs760.4 (Fig. 4B). Comparing Figs. 3 and 4, the solar-induced Chl fluorescence yield variation was larger than that induced by artificial light, probably because of a weak Chl fluorescence signal, lack of the sensitivity of the spectrometer, and solar fluctuation during the measurement.


Estimating chlorophyll content and photochemical yield of photosystem II (ΦPSII) using solar-induced chlorophyll fluorescence measurements at different growing stages of attached leaves.

Tubuxin B, Rahimzadeh-Bajgiran P, Ginnan Y, Hosoi F, Omasa K - J. Exp. Bot. (2015)

Relationships between leaf Chl content and steady-state SIF yields. (A) ΦFa686.7. (B) ΦFa760.4.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4585421&req=5

Figure 4: Relationships between leaf Chl content and steady-state SIF yields. (A) ΦFa686.7. (B) ΦFa760.4.
Mentions: Figure 4 shows the relationships between leaf Chl content and steady-state solar-induced Chl fluorescence yields of ΦFs686.7 and ΦFs760.4. The Chl fluorescence yields of ΦFs686.7 decreased with an increase in Chl content (Fig. 4A), whereas the Chl fluorescence yields of ΦFs760.4 increased, although the yields varied largely, especially in ΦFs760.4 (Fig. 4B). Comparing Figs. 3 and 4, the solar-induced Chl fluorescence yield variation was larger than that induced by artificial light, probably because of a weak Chl fluorescence signal, lack of the sensitivity of the spectrometer, and solar fluctuation during the measurement.

Bottom Line: The steady-state solar-induced Chl fluorescence yield ratio correlated very well with the artificial-light-induced one (R(2) = 0.84).A new methodology is then presented to estimate photochemical yield of photosystem II (ΦPSII) from the SIF measurements, which was verified against the standard Chl fluorescence measurement method (pulse-amplitude modulated method).The high coefficient of determination (R(2) = 0.74) between the ΦPSII of the two methods shows that photosynthesis process parameters can be successfully estimated using the presented methodology.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657 Japan.

No MeSH data available.